Let’s be direct: there’s a good chance you’re overpaying for shipping and don’t even realize it. The reason? Your carrier invoices are likely filled with inaccuracies. These carrier billing mistakes range from phantom charges for services you never received to negotiated discounts that mysteriously disappear from the final bill. These aren’t just occasional slip-ups; they are a consistent drain on your profits that can account for a significant portion of your total shipping spend. Ignoring them means leaving money on the table—money that belongs in your budget. In the following sections, we’ll uncover where these errors hide and provide a step-by-step guide to auditing your invoices and reclaiming what you’re owed.

Key Takeaways

Assume your invoices have errors: Carrier billing mistakes are far more common than you think, often costing businesses 3-5% of their total shipping spend. Make routine invoice auditing a non-negotiable part of your process to protect your profits from this silent drain.
Create a proactive prevention system: The most effective strategy is to stop errors before they happen. Focus on prevention by using technology for address verification and accurate measurements, training your team on correct procedures, and establishing a consistent monthly audit.
Master the dispute process with documentation: Finding an error is only half the battle; getting your money back requires a methodical approach. Keep meticulous records, know your carrier’s deadlines for filing claims, and be persistent in following up until you see the credit on your statement.

What Are Carrier Billing Mistakes?

Think of carrier billing mistakes as the hidden fees of the shipping world. They are inaccuracies on your freight invoices that cause you to overpay for the services you use. These errors can be surprisingly common, often buried in long, complex carrier agreements and invoices that are tough to decipher. From incorrect surcharges to misapplied discounts, these discrepancies can quietly drain your shipping budget without you even realizing it.

The problem is that many businesses either don’t have the time or the right tools to catch these errors. They trust that the carrier bills are correct and pay them as they come in. But with some reports suggesting that a high percentage of freight invoices contain errors, simply paying the bill can be a costly assumption. Regularly performing a parcel and LTL invoice audit is the only way to find and correct these mistakes, ensuring you only pay for the services you actually receive at the rates you agreed upon.

The different kinds of billing errors

Billing errors come in many forms, and they can be easy to miss if you don’t know what you’re looking for. Some of the most frequent mistakes include incorrect package dimensions or weight, which can lead to unexpected dimensional weight charges. Another common issue is address correction fees; carriers like UPS and FedEx charge a significant fee for each correction, which adds up quickly. You might also find inaccuracies on your Bill of Lading (BOL) or realize you’re simply overpaying for freight compared to current market rates. An automated system can help you check shipping bills against your contracts to catch these discrepancies before they impact your bottom line.

How these errors affect your bottom line

At first glance, a small overcharge on a single invoice might not seem like a big deal. But when you’re shipping in high volumes, these “small” mistakes compound into substantial financial losses. Inaccurate invoices can lead to overcharges of 3% to 5% of your total shipping spend. Some studies have even found that up to 80% of carrier freight invoices have some kind of discrepancy. For a company with a large shipping budget, this can translate to thousands, or even millions, of dollars lost over time. These errors are a silent drain on your profits, making it harder to reduce high-volume shipping costs and manage your logistics budget effectively.

5 Common Carrier Billing Mistakes to Watch For

Carrier invoices are notoriously complex, and it’s easy for errors to slip through the cracks. While you might assume your bills are correct, small mistakes can quietly drain your shipping budget over time. Inaccurate invoices can lead to overcharges that eat into your profits, but catching these issues starts with knowing exactly what to look for. Here are five of the most common—and costly—carrier billing mistakes that high-volume shippers face.

Incorrect package dimensions and weights

One of the most frequent errors stems from incorrect package data. Carriers use dimensional (DIM) weight to price shipments, meaning the size of the box matters just as much as its weight. A simple data entry mistake or a slight miscalculation by your team can result in a significant overcharge. Carriers re-weigh and re-measure packages in their facilities, and if their numbers don’t match yours, they’ll adjust the bill accordingly—often in their favor. These small discrepancies can add up to overcharges of 3-5% of your total invoice value. Regularly monitoring your shipping KPIs can help you spot patterns in these adjustments and identify where the errors are originating.

Address verification failures

A simple typo can be a surprisingly expensive mistake. When you send a package to an incomplete or incorrect address, carriers like UPS and FedEx will attempt to correct it, but they’ll charge you a fee for the service. These address correction fees typically run between $18 and $21 per package. For a company shipping thousands of packages a month, these charges can quickly accumulate into thousands of dollars in preventable costs. Beyond the fee, incorrect addresses lead to delivery delays, frustrated customers, and the added expense of reshipping a lost order. Implementing address verification tools before a label is even printed is a critical step to reduce fulfillment costs.

Discounts that don’t get applied

You spent weeks, maybe even months, negotiating favorable terms and discounts with your carrier. But is that hard-won pricing actually reflected on your invoices? Carrier agreements are complex, with multiple tiers for volume discounts, service levels, and surcharges. It’s common for these negotiated rates to be applied incorrectly or missed entirely on the final bill. Without a careful review, you could be paying standard rates on shipments that should have been discounted. A thorough contract optimization strategy includes not just negotiating the best terms but also ensuring they are consistently honored on every single invoice.

Duplicate charges and double billing

It sounds like a mistake that should be easy to catch, but duplicate billing happens more often than you’d think. A single shipment can accidentally be billed twice due to a system glitch, a reprinted shipping label, or simple human error. With some reports indicating that up to 80% of freight invoices contain some kind of discrepancy, the risk is significant. For high-volume shippers processing thousands of line items, spotting a duplicate charge is like finding a needle in a haystack. This is where an automated invoice audit and recovery process becomes essential, catching errors that the human eye would almost certainly miss.

Surprise accessorial charges

Accessorial charges are the “hidden fees” of the shipping world. These are costs for services that go beyond standard pickup and delivery, such as residential delivery surcharges, fuel surcharges, liftgate services, or fees for delivering to a remote area. While these charges are legitimate, they often come as a surprise if you aren’t anticipating them. They can inflate the cost of a shipment far beyond your initial estimate, making it difficult to manage your budget effectively. Gaining full visibility into every line item on your invoice through a dedicated spend management portal helps you understand your true cost to ship and avoid being caught off guard by these extra fees.

How Incorrect Dimensions and Weights Inflate Your Costs

Of all the billing errors that can quietly drain your shipping budget, mistakes related to package dimensions and weight are some of the most common. It’s easy to assume that as long as the actual weight is correct, you’re in the clear. But in reality, the amount of space your package takes up on a truck or plane is just as important to carriers, and they bill you for it accordingly.

When your team enters incorrect measurements—even by a fraction of an inch—it creates a ripple effect. The carrier’s automated systems will flag the discrepancy, re-weigh and re-measure the package, and issue a correction. This correction almost always comes with a penalty fee, turning a small oversight into a significant expense that gets multiplied across thousands of shipments.

Understanding dimensional weight pricing

Dimensional weight, or DIM weight, is a pricing technique used by all major carriers to calculate shipping costs. Instead of charging based on a package’s actual weight, they charge based on its volume—the amount of space it occupies. The billable weight will be the greater of the two: the actual weight or the DIM weight. This is why a large, lightweight box filled with pillows can cost more to ship than a small, heavy box of books.

Carriers use DIM weight because space on their vehicles is finite. A truck can fill up with bulky, light items long before it hits its weight capacity. By using this pricing model, they ensure they are compensated for the space your package uses. Understanding this is the first step to reducing high-volume shipping costs and avoiding unnecessary charges.

Why measurement accuracy is critical

Since carriers bill based on DIM weight, providing precise measurements for every package is non-negotiable. Guessing or “eyeballing” dimensions is a recipe for billing adjustments and extra fees. If your provided dimensions don’t match what the carrier’s scanners detect, they will correct the invoice and add a charge for the service. These fees can add up quickly, especially for high-volume shippers.

To prevent this, your team needs the right tools. Swapping a tape measure for a digital dimensioner and using a calibrated scale ensures every package is measured accurately before it leaves your facility. Consistently accurate data not only prevents correction fees but also gives you a clearer picture of your true shipping costs, which is essential for effective reporting and KPI tracking.

The hidden costs of oversized packages

The financial impact of incorrect dimensions goes beyond a simple rate adjustment. Research shows that a high percentage of carrier invoices contain billing errors, and dimension-related mistakes are a major contributor. These discrepancies can lead to overcharges of 3-5% or more on your total shipping spend. These fees are often listed as vague “charge corrections” on your invoice, making them difficult to spot without a detailed audit.

When you’re shipping thousands of packages a week, these hidden costs become a significant drain on your profits. The only way to catch them is through a meticulous review of every line item on your carrier invoices. A thorough invoice audit and recovery process ensures you’re not paying for preventable errors and helps you reclaim the money you’ve been overcharged.

Which Invoice Errors Are Costing You the Most?

While any billing error is frustrating, some drain your budget far more than others. It’s easy to get lost in the line items of a complex carrier invoice, but focusing on a few key areas can yield the biggest returns. These aren’t just minor typos; they are systemic issues that can compound over thousands of shipments, quietly siphoning profits from your bottom line. Understanding where the costliest mistakes hide is the first step toward protecting your shipping budget. From rates that don’t reflect your negotiated contract to phantom charges for services you never used, these errors are surprisingly common. Let’s look at the four biggest culprits that could be inflating your shipping spend right now.

When your rates don’t match your contract

You’ve spent weeks, maybe even months, negotiating a great carrier contract. You’ve secured specific discounts, waived certain fees, and agreed on favorable terms. But what happens when those terms don’t actually show up on your bill? It’s a more frequent problem than you might think. Many companies lose money simply because they aren’t getting their contracted rates. You agreed to a certain price or discount, but the bill shows a higher one. This discrepancy can stem from outdated billing systems on the carrier’s end or a simple failure to apply the correct profile to your account. A regular invoice audit and recovery process is the only way to ensure the rates you worked so hard to secure are the ones you’re actually paying.

Miscalculated fuel surcharges

Fuel surcharges are a standard part of shipping, but their fluctuating nature makes them a prime spot for costly errors. These fees are typically calculated as a percentage of your base shipping rate and change weekly based on national fuel price indexes. With so many variables, mistakes are bound to happen. In fact, inaccurate invoices can result in overcharges of 3%-5% of total invoice values due to miscalculated fuel surcharges alone. For a high-volume shipper, that seemingly small percentage can translate into tens or even hundreds of thousands of dollars in overspending each year. Verifying these calculations on every invoice is critical to keeping your costs in check.

Charges for services you never received

This one feels like it should be obvious, but phantom charges are a sneaky and persistent problem. You might be billed for a service you canceled, like Saturday delivery on a route you no longer use, or charged for additional handling on a package that met all standard requirements. This error occurs when you get charged for services that you never requested or received, leading to completely unnecessary costs. These charges often fly under the radar because they look legitimate at a glance. Without a system to cross-reference what was billed against what was actually performed, you could be paying for a carrier’s mistake without ever knowing it.

Mistakes in zone skipping

If you use zone skipping to lower your shipping costs, you need to be extra vigilant about how you’re billed. The whole point of this strategy is to induct packages deeper into a carrier’s network to pay for a lower-zone, less expensive shipment. However, carriers sometimes make mistakes and bill the package from its original point of origin instead of the correct induction hub. This single error completely wipes out your intended savings. As audit data reveals, billing mistakes, including errors in zone skipping, can significantly inflate your shipping expenses. Catching these requires a deep understanding of your shipping strategy and a meticulous review of your invoices.

How to Find and Audit Carrier Billing Errors

Finding billing errors on your carrier invoices can feel like searching for a needle in a haystack, especially when you’re dealing with thousands of shipments. But ignoring this process means leaving money on the table. The good news is that you can create a systematic approach to auditing that catches mistakes and recovers costs before they impact your bottom line. It all starts with deciding how you’ll tackle the audit, knowing what to look for, and getting your documentation in order.

Choosing between automated and manual audits

When it comes to auditing your invoices, you have two main paths: manual or automated. A manual audit involves having someone on your team meticulously review each invoice line by line, comparing it against your carrier contract and shipping data. While this avoids the cost of software, it’s incredibly time-consuming and prone to human error. For businesses shipping at scale, a manual process can quickly become unsustainable, and costly errors are bound to slip through the cracks.

An automated audit, on the other hand, uses software to do the heavy lifting. These systems can process thousands of invoices in minutes, flagging discrepancies with precision. Using an automated invoice audit and recovery service streamlines the entire process, ensuring no error goes unnoticed and freeing up your team to focus on other strategic tasks. For most high-volume shippers, automation isn’t just a convenience—it’s a financial necessity.

Key red flags to look for

It’s a startling fact, but some reports show that a high percentage of carrier freight invoices contain errors. These discrepancies can lead to significant profit loss if they aren’t caught. Training your team to spot common red flags is your first line of defense.

When reviewing your invoices, keep an eye out for these issues:

Rate discrepancies: The charges on the invoice don’t match the negotiated rates in your carrier agreement.
Duplicate charges: You’re billed twice for the same shipment or tracking number.
Incorrect accessorial fees: You’re charged for services you didn’t request or that weren’t performed, like a residential surcharge for a commercial delivery.
Late delivery failures: A guaranteed service shipment arrived late, but you were never credited for the service failure.
Incorrect weight or dimension charges: The carrier’s recorded dimensions or weight differ from your own, resulting in a higher charge.

What documentation you’ll need for a dispute

Once you’ve identified a potential error, you’ll need to build a case to dispute the charge with your carrier. Success depends on having clear and organized documentation to back up your claim. Before you even pick up the phone or file a claim, take the time to gather all the relevant paperwork. Think of it as preparing your evidence.

You’ll want to have these items ready:

The invoice number and the specific tracking number in question.
A copy of your carrier contract highlighting the correct rate or rule.
The bill of lading (BOL) or shipping manifest.
Proof of the actual package details, such as system data showing weight and dimensions.
Proof of delivery documentation, if the dispute is related to delivery time or location.

Having a centralized spend management portal can make gathering this information much simpler.

How often should you audit your invoices?

Timing is everything when it comes to invoice auditing. Don’t wait for a quarterly or annual review to go through your carrier bills. You should be auditing your invoices every single month, or even weekly if you receive invoices that frequently. Carriers have strict windows for filing claims—often 180 days or less—and if you miss that deadline, you forfeit any chance of recovering the overcharge.

A consistent, monthly audit process does more than just catch one-off errors. It helps you identify recurring problems and trends in carrier billing. Are you constantly being hit with incorrect address correction fees? Are certain surcharges appearing more often? Regular reporting and KPIs on this data can reveal deeper issues in your shipping process or with your carrier’s billing practices, allowing you to address them at the source.

Using Technology to Prevent Billing Mistakes

Manually checking every line of a carrier invoice is a massive time sink, and let’s be honest, it’s nearly impossible to catch every mistake. For high-volume shippers, even small, recurring errors can add up to thousands of dollars in lost revenue. This is where technology becomes your best friend. The right tools can automate the tedious work of auditing and even prevent errors from happening in the first place, ensuring you only pay for the services you actually receive.

Shipware’s Invoice Audit & Recovery Platform

Did you know that billing errors can make up anywhere from 1% to 9% of your total shipping costs? An automated platform is the most effective way to reclaim that money. Shipware’s invoice audit and recovery service works in the background to meticulously scan every carrier invoice for over 50 common errors, from late deliveries and incorrect surcharges to unapplied discounts. When an error is found, the system automatically files a claim on your behalf, putting money back into your budget without you having to lift a finger.

Automated invoice auditing tools

Beyond just recovery, automated auditing tools bring a new level of efficiency to your billing process. Instead of having your team spend hours manually cross-referencing tracking numbers and rate sheets, these systems streamline everything. They integrate directly with your carriers to pull invoice data and compare it against your contract terms and shipment details. This not only flags errors with incredible accuracy but also frees up your team to focus on more strategic initiatives. Think of it as your first line of defense against overcharges and a smart way to manage your shipping spend.

Address verification tools

So many billing errors start with a simple typo in a shipping address. An incorrect street name or zip code can lead to address correction fees, rerouting charges, and costly returned shipments. Address verification software is a simple, proactive tool that can save you a lot of headaches. These tools integrate with your ecommerce platform or order management system to automatically check and standardize addresses as they’re entered. By catching these mistakes in real-time, you can ensure packages get to the right place on the first try and reduce fulfillment costs.

Digital scales and dimensioners

Guessing package weights and dimensions is a recipe for surprise charges. Carriers use their own automated systems to weigh and measure every package, and if their numbers don’t match yours, you’ll be hit with a correction fee. Investing in certified digital scales and dimensioners removes the guesswork. These tools provide precise measurements, ensuring the data you send to the carrier is accurate from the start. This is especially critical for avoiding unexpected dimensional weight charges and fees for oversized packages, helping you better control your high-volume shipping costs.

How to Dispute Carrier Billing Errors (and Win)

So you’ve found a billing error. Now what? Getting a carrier to correct a mistake and refund your money can feel like an uphill battle, but it’s a fight you can absolutely win. The secret isn’t about being aggressive; it’s about being prepared. When you approach a dispute with a clear, methodical strategy, you shift the dynamic from a frustrating argument to a simple presentation of facts. For high-volume shippers, mastering this process is critical. Small, recurring errors—like incorrect address corrections or misapplied fuel surcharges—can add up to thousands of dollars in lost revenue over time. By treating each dispute as a systematic task rather than a one-off headache, you can build a reliable process for cost recovery. This section will walk you through the essential steps for successfully disputing carrier charges, from knowing your deadlines to making sure you get that final credit on your statement. It’s time to stop leaving money on the table and start getting back what you’re owed. With the right documentation and a persistent approach, you can ensure you only pay for the services you actually receive.

Know the timelines and deadlines

When it comes to billing disputes, the clock is always ticking. Most carriers have strict deadlines for submitting claims, and if you miss the window, you forfeit your chance for a refund—even if the error is 100% their fault. For example, federal regulations often give you 60 days to dispute a charge in writing from the statement date. However, carrier-specific rules can vary, so it’s critical to check your service agreement for their exact requirements. Make it a habit to review invoices as soon as they arrive. Acting quickly not only keeps you within the required timeframe but also shows the carrier you’re diligent about your account.

Gather the right documentation

You can’t win a dispute without proof. Before you even contact your carrier, you need to build a solid case with clear documentation. This includes the invoice with the error highlighted, the original bill of lading (BOL), proof of delivery (POD), and any photos or communications related to the shipment. If the dispute is about package dimensions or weight, have your own measurement records ready. A comprehensive invoice audit and recovery process makes this much easier by organizing all the necessary evidence in one place. The more organized and thorough your documentation is, the faster the carrier can verify your claim and issue a credit.

How to communicate effectively with carriers

Your communication with the carrier should be clear, professional, and to the point. Start by contacting your carrier’s billing department or your dedicated account representative. Have your account number and the specific invoice and tracking numbers ready. Clearly explain the error, reference your documentation, and state the resolution you’re seeking. While a phone call can get the process started, always follow up with an email to create a written record of your conversation. This paper trail is invaluable if you need to escalate the issue later. Remember to keep records of every interaction, including the date, time, and the name of the person you spoke with.

Follow up until you get a resolution

Don’t assume a single phone call or email will solve the problem. Persistence is essential. If you don’t hear back within the timeframe the carrier provided, follow up. Track your open disputes in a spreadsheet or project management tool so nothing falls through the cracks. Ask for a claim or ticket number for your dispute to make follow-up calls more efficient. Regularly monitoring your shipping reporting and KPIs can help you spot when credits are due and ensure they’ve been applied correctly. Keep following up professionally until you see the credit on your account statement.

Best Practices for Keeping Your Carrier Bills Accurate

Auditing invoices is a critical part of managing shipping costs, but it’s a reactive measure—you’re catching mistakes after they’ve already hit your bottom line. The most effective strategy is to prevent those errors from ever happening. By building proactive habits into your shipping process, you create a strong defense against overcharges and gain greater control over your logistics spend. This isn’t about a massive operational overhaul; it’s about implementing consistent, intelligent checks and balances that become second nature to your team.

Think of it this way: every error you prevent saves not only the cost of the overcharge but also the time and resources spent identifying, disputing, and recovering those funds. A proactive approach transforms your shipping department from a cost center into a well-oiled, efficient part of your business. It fosters a culture of accuracy where every team member understands their role in protecting the company’s profitability. When your processes are sound, your billing becomes more predictable, making forecasting and budgeting far more reliable. Below, we’ll cover four fundamental best practices that will help you keep your carrier bills accurate from the start, ensuring you only pay for the services you actually use.

Verify details before you ship

The single most effective way to prevent billing errors is to ensure every detail is correct before a package leaves your facility. This starts with the delivery address. Integrating address verification software into your order management system automatically flags typos and formatting issues, eliminating the risk of costly address correction surcharges. Just as crucial is capturing accurate package weight and dimensions. A slight miscalculation can trigger significant dimensional weight charges, turning a profitable shipment into a loss. This simple pre-shipment check is fundamental to ensuring the rate you’re quoted is the rate you’re billed.

Train your team on what to look for

Your shipping team is your first line of defense against billing errors, but only if they know what to look for. Regular training is essential to keep everyone aligned on proper procedures, from correctly measuring packages to selecting the right service level for each shipment. Empower your staff by explaining the financial impact of common mistakes, like mis-entering a weight or overlooking a residential delivery surcharge. When your team understands the why behind the rules, they become active partners in helping to reduce distribution and fulfillment costs. An informed team makes fewer mistakes and is better equipped to spot potential issues before they become expensive problems.

Regularly review your carrier contracts

Your carrier contract is the rulebook for every charge, discount, and fee that appears on your invoice. If you aren’t intimately familiar with its terms, you have no way of knowing if you’re being overcharged. Make it a practice to review your agreement at least twice a year. Compare your contracted rates, including any negotiated discounts and incentives, against what you’re actually being billed. This process not only helps you catch discrepancies but also reveals whether your current agreement still aligns with your shipping patterns. It’s the perfect opportunity to identify areas for parcel and LTL contract optimization and negotiate better terms for the future.

Monitor and track your shipping performance

Your shipping data tells a story, and consistent monitoring helps you read it. By tracking key metrics, you can spot negative trends—like a sudden spike in a specific accessorial fee or a drop in your on-time delivery rate—before they snowball into major financial drains. This data-driven approach allows you to diagnose the root cause, whether it’s a flaw in your packing process or a misunderstanding of carrier rules. Using detailed reporting and KPIs transforms your shipping data from a simple historical record into a powerful tool for continuous improvement, giving you the insights needed to make smarter, more cost-effective decisions.

Create Your Billing Error Prevention Strategy

Catching billing errors is great, but preventing them from happening in the first place is even better. A proactive strategy saves you time, protects your budget, and strengthens your entire logistics operation. Instead of just reacting to mistakes, you can build a system that minimizes them from the start. This approach moves your team from a reactive, fire-fighting mode to a strategic, forward-thinking one. Here are four key practices to build into your billing error prevention strategy.

Implement a monthly audit process

With some studies suggesting that a staggering number of freight invoices contain discrepancies, a monthly audit process is your first line of defense. Think of it as a regular financial health check for your shipping operations. A consistent review schedule helps you catch and dispute errors quickly, before they become a significant drain on your resources. This routine not only helps you reclaim overcharges but also provides valuable data on carrier performance and billing accuracy. An automated invoice audit and recovery system can handle this heavy lifting, ensuring no error goes unnoticed and freeing up your team to focus on other priorities.

Manage your carrier relationships

Relying on a single carrier for all your shipping needs can leave you exposed to their specific billing quirks and rate changes. It’s much smarter to work with several different shipping companies to give yourself more options and better leverage. A strategy built on carrier diversification allows you to match the right carrier to the right shipment, optimizing for both cost and service level. This approach not only mitigates the risk of being overly dependent on one provider but also fosters healthy competition that can lead to more favorable contract terms and fewer billing headaches down the road.

Use a system for cost tracking and analysis

For high-volume shippers, trying to track costs with spreadsheets is a recipe for missed errors and lost savings. Implementing a centralized system for cost tracking and analysis is essential for maintaining control over your shipping spend. A robust spend management portal provides the visibility you need to monitor key performance indicators, spot anomalies in your billing, and analyze trends over time. By using automated shipping and billing systems to streamline data collection and reporting, you can move from manually hunting for errors to strategically managing your shipping expenses with clarity and confidence.

Commit to continuous improvement

The shipping industry is always changing, which means your strategy shouldn’t be set in stone. Committing to continuous improvement means regularly reviewing your internal processes, training your team on best practices, and staying informed about carrier policy updates. It also involves periodically re-evaluating your carrier agreements to ensure they still meet your needs. An ongoing focus on contract optimization ensures your rates and terms remain competitive. This proactive mindset, supported by modern billing software and expert guidance, is what transforms your shipping operation from a cost center into a strategic advantage.

Book A Demo

Frequently Asked Questions

How much could these billing errors actually be costing my business? It’s more than you might think. While a single overcharge might seem small, these mistakes add up across thousands of shipments. On average, businesses can lose anywhere from 3% to 5% of their total shipping spend to these errors. For a company with a substantial shipping budget, that can easily translate into tens of thousands, or even hundreds of thousands, of dollars in lost profit each year.

My team doesn’t have time to check every invoice. What’s a more realistic approach? That’s a common and completely valid concern. Manually auditing every line item is nearly impossible for a high-volume shipper. This is why automated auditing is so effective. Specialized software can scan every invoice against your contract terms in minutes, flagging discrepancies and even filing claims for you. It’s a far more realistic and accurate approach that frees your team to focus on strategy instead of tedious cross-checking.

Why aren’t my negotiated discounts always applied correctly? This is one of the most frustrating errors because you’ve already done the hard work of negotiating a great contract. These mistakes often happen due to simple human error or system glitches on the carrier’s end. Their billing systems are complex, and if your account profile isn’t updated correctly or a specific discount code is missed, you’ll be billed at a standard, more expensive rate. The only way to catch it is to verify that the rates on your invoice match the rates in your agreement.

What’s the most effective way to prevent these errors before they even happen? The best defense is a good offense. The most powerful preventative measure is to ensure all your data is accurate before a label is ever printed. This means using address verification tools to eliminate typos and investing in digital scales and dimensioners to capture precise package measurements. When the data you send to the carrier is flawless from the start, you eliminate the root cause of many of the most common and costly billing adjustments.

Is it really worth the effort to dispute a small charge with a carrier? Absolutely. While a single $18 address correction fee might not seem worth the trouble, these “small” charges are often symptoms of a larger, recurring problem. If you’re making the same mistake on hundreds of shipments a month, that one fee becomes a significant expense. Disputing charges—even small ones—helps you identify and fix underlying issues in your process. It also sends a clear message to your carrier that you are watching your invoices closely.

5 Costly Carrier Billing Mistakes to Avoid