How to catch carrier overcharges before you pay the invoice

Thursday is pay day for carriers, so Wednesday afternoon is when the stack gets looked at. Forty invoices sit in the AP inbox. Most say what the rate confirmation said. A few don’t. One adds two hours of detention nobody approved. One bills fuel at a price from three weeks ago. One is the same load billed twice, a week apart, with a different invoice number on each.

The person paying them has the rate confirmations somewhere in an email thread with dispatch. Finding each one takes longer than reading the invoice. So on a busy week the check gets lighter, and on the busiest week it gets skipped. This guide is about what that costs and what pay day looks like once every invoice is checked before the money goes out.

Why overcharges get paid

Carriers mostly bill honestly. The problem is that small differences are easy to miss when nobody has time to look.

• The rate drifted. The rate confirmation says one line haul. The invoice says a slightly higher one. Unless someone opens both, the higher number gets paid.
• Extras nobody signed off on. Detention, lumper fees, layovers and extra stops show up on the bill. Some were approved by phone. Some were never mentioned to anyone in your office.
• Fuel at the wrong week. A fuel surcharge is the extra a carrier adds to cover the cost of diesel, and it often follows a diesel price published each week. Bill it against the wrong week and the number looks normal while it is off.
• The same load, billed twice. A resent invoice or a factoring company billing on the carrier’s behalf can put one load in front of you twice.
• Proof that never arrived. A lumper charge with no receipt or a detention claim with no times on it gets paid because asking feels like more work than paying.
• Rules that live with one person. Someone on the team knows which carriers always add a stop charge and which customers pay their own lumpers. When that person is out, those checks stop.

None of this is about bad carriers. It comes from treating invoice review as a spare-time job when it is really the last chance to catch a mistake before it becomes a refund request.

Where your TMS stops

Your TMS or accounting system already holds the load, the agreed rate and the carrier’s payment details. It can pay a bill once someone says the bill is right. The gap is the step before that: reading each invoice and finding the rate confirmation and approved extras that go with it. Then someone has to decide whether the two agree. Today that step is a person with an inbox in one window and the load in the other.

What hand-checking costs

The first cost is time. Each invoice has to be opened, tied to a load and compared with what was agreed. A clean one takes a few minutes. One with an extra charge means a search through dispatch emails and often a call to whoever booked the load.

The second cost is what slips through. Overpaid fuel, unapproved detention and duplicate bills rarely get noticed after payment. When they do, getting the money back means calls, credit memos and short pays that carriers dispute.

The third cost lands on the carriers you want to keep. When review falls behind, clean invoices wait alongside messy ones. Good carriers get paid late and start calling about it. They also remember it the next time you need a truck on short notice.

You can price the first part with your own figures. As an example, take two people who each spend about six hours a week matching carrier invoices to rate confirmations, at a loaded cost of $28 an hour. Swap in your own team size, hours and rate.

People doing it

2

Hours each, per week

6

Loaded cost per hour

$28

Hours per month

52

Cost per year

$17,472

Hours back per month

26–36

An estimate from the numbers above, not a client result. It assumes 50%–70% of the work can be taken off your team; your audit checks that against your own numbers.

That comes to 624 hours a year of matching paperwork, before counting a single overpayment or late-pay call.

A pay run where every invoice is checked

Picture the same Wednesday. Carriers send invoices exactly as they do now: a PDF from their billing system, a scan, a phone photo of a signed paper bill.

1. Each invoice is read, whatever its format. The load number, charges and dates are pulled out wherever the carrier put them on the page.
2. It is paired with the right load and agreed rate. The invoice is matched to the carrier, the shipment and the rate confirmation that went with it, along with any extras approved in writing or logged in your TMS.
3. Your team’s checks run on every bill. Does the line haul match? Was detention approved and do the times support it? Is there a receipt behind the lumper charge? Is fuel billed at the right week’s price? Has this load already been paid? These questions get written down once and asked of every invoice, not only the ones someone has time for.
4. Clean invoices move on to payment. They can go straight into the pay run or wait for a quick approval. You choose per carrier.
5. Anything that doesn’t match goes to a person with the question marked. They see the invoice beside the rate confirmation and the exact difference: a stop charge nobody approved, a fuel figure off by a week, a load number already paid.
6. The answer is kept. When someone decides that a carrier’s weekend detention is always approved for a certain customer, that decision is saved. The same question doesn’t come back on next month’s bills.

By Wednesday afternoon most of the stack is already approved. What is left is a short list of real differences, each with the paperwork open beside it.

The invoices worth a phone call

A detention charge with no times on it is a question for dispatch, not something to guess at. Someone answers it once, and the next time that carrier bills the same situation, the answer is already there.

Over time those answers become your rules for paying carriers. What one person used to carry in their head ends up written down, so anyone on the team can run the pay run and a new hire learns the carriers from real decisions.

Fuel billed at the price each carrier agreed to

The U.S. Energy Information Administration publishes weekly on-highway diesel prices. EIA says many shippers and truckers use that information in their fuel-pricing formulas, though it does not calculate or regulate surcharges and every company has its own method. Its weekly diesel table gives a price for the country and one for the Gulf Coast region Texas falls in. A Dallas carrier’s agreement may tie fuel to either one. When a bill uses the wrong one, or last month’s week, the fuel line still looks normal. That is the overcharge nobody catches by eye, and now it is held for a person before you pay it.

What changes for AP and your carriers

More overcharges get caught before the money leaves. A wrong rate, an extra nobody approved or a duplicate bill is stopped while it is still a question, not after it becomes a refund to chase.

Only real exceptions reach a person. Instead of reading forty invoices to find four problems, your team starts with the four.

Clean invoices get paid on time. Carriers who bill correctly stop waiting behind the ones who don’t, and there are fewer “where’s my check?” calls.

Dispatch gets fewer interruptions. When AP does need an answer about a load, the question arrives with the invoice and the rate confirmation already attached.

Month end gets quieter. There is no pile of unreviewed carrier bills to clear, and no guessing which loads were paid twice.

And pay day stops depending on who is in the office.

If rate confirmations still get retyped into your TMS, read how brokers get rate confirmations in without retyping. The same idea applies to supplier bills in matching vendor invoices to the PO and receipt. Other paperwork problems for brokers and shippers are covered in our logistics guides. To see what a project covers, read how we scope the work.

Where to start

Keep the first step small.

1. Pick your busiest carriers. Look at who sends you the most invoices each month. Those are your first candidates.
2. List the extras you see most. Note which charges come up again and again and who on your team is allowed to approve each one.
3. Find where the rate confirmations live. Note whether they sit in your TMS, an email folder or both.
4. Decide on approval. Choose whether each starting carrier’s invoices wait for a person or go straight to payment once they match.
5. Go live, then widen. Your first workflow goes live within 14 days of access to your tools. Add carriers as their invoices run clean.

It runs on the tools you already use, starting with your TMS and the inbox where carrier invoices land. The first step is a free 20-minute audit call about how you check carrier bills today. You get a written plan within 48 hours and a fixed-scope quote after the audit.