A point of sale adjustment on your bank statement is a change to a transaction amount that posts after the original purchase was already authorized. The final charge can be higher or lower than the “pending” figure you saw at checkout, and it usually reflects something predictable: a tip added later, a pre-authorization hold releasing, an exchange rate settling, or a merchant fixing a mistake. Federal law gives you the right to dispute any adjustment that looks wrong, and the deadlines are shorter than most people expect.
Why the Adjustment Appeared
Most adjustments trace back to one of a few causes. Knowing which one applies tells you whether to shrug it off or start gathering receipts.
A Tip Was Added After You Signed
At restaurants, bars, and salons, the card terminal authorizes only the pre-tip total. That amount sits in pending status until the server enters your tip and closes the transaction. The final posted charge is the pre-tip total plus the tip, and the difference is the adjustment.
A Pre-Authorization Hold Was Released
Gas stations, hotels, and car rental agencies put a temporary hold on your card for an estimated amount before they know your real total. A gas pump might hold $100 when you only pumped $35. Once the merchant submits the actual charge, the hold drops and the accurate amount posts. For debit cards, paying inside with a PIN usually clears the hold faster than paying at the pump.
An Exchange Rate Shifted
International purchases almost always trigger an adjustment. The exchange rate at authorization may differ from the rate at settlement a day or two later, and the posted amount reflects whichever rate applied when the transaction finally cleared.
The Merchant Processed a Batch Late
Merchants typically collect a day’s charges and submit them as a batch at close of business. When a batch is submitted late, the charge sits in pending status longer than usual, and the posted amount can differ from the authorization if the merchant modified anything before submitting.
The Merchant Made a Mistake
Cashiers sometimes run the same purchase twice, forget a coupon, or key in the wrong price. When the merchant catches it, they submit a correction, which shows up as an adjustment adding money back or taking more out. Duplicate charges are among the most common, and the merchant can usually fix them faster than your bank can.
How the Adjustment Changes Your Balance
Two numbers matter on your account: the available balance (what you can spend now) and the posted balance (what has fully cleared). A pending adjustment lives in the gap between them. Once it settles, the two numbers line up again.
An adjustment that raises a charge shrinks your available balance, and if you were running low that shrinkage can push you negative. For one-time debit card purchases, banks cannot charge you an overdraft fee unless you specifically opted in to overdraft coverage for those transactions.1Consumer Financial Protection Bureau. What Can I Do if My Bank Charged Me a Fee for Overdrawing My Account? Recurring payments and checks can still trigger overdraft fees without opt-in, though, so an adjustment that drains your account can knock over an automatic payment scheduled the same day. If that happens because of a merchant’s error, raise the fee when you dispute the adjustment.
Debit Card or Credit Card: Different Rules Apply
Which law protects you depends on which card you used. Debit card transactions fall under the Electronic Fund Transfer Act and Regulation E. Credit card transactions fall under the Truth in Lending Act and Regulation Z. Debit card users face tighter deadlines and higher stakes because the money has already left the account.
Debit Cards
Your liability for unauthorized debit card charges depends on how fast you report the problem. Notify your bank within two business days of learning your card was lost or compromised, and your maximum liability is $50. Wait longer than two days but report within 60 days of receiving your statement, and liability rises to $500. Miss the 60-day window and you could be liable for the full amount.2Office of the Law Revision Counsel. 15 USC 1693g – Consumer Liability You can report a debit card error orally or in writing, and the bank must begin investigating promptly.3eCFR. 12 CFR 1005.11 – Procedures for Resolving Errors
Credit Cards
Credit card liability for unauthorized charges is capped at $50 regardless of when you report, as long as the issuer met certain disclosure requirements.4eCFR. 12 CFR 1026.12 – Special Credit Card Provisions Most major issuers waive that $50 as a competitive perk. The tradeoff: a credit card billing error notice must be in writing, sent within 60 days of the statement that first showed the error, and it must include your name, account number, and a description of the problem.5eCFR. 12 CFR 1026.13 – Billing Error Resolution During the investigation, you can withhold payment on the disputed amount without being reported delinquent, which is a protection debit card users don’t get since their money is already gone.
How to Dispute the Adjustment
Gather Your Documentation
Before you contact anyone, pull together the transaction date, the merchant name exactly as it appears on your statement (often different from the store’s sign), the amount you expected, and the amount that posted. Your receipt is the single most important piece of evidence because it shows what you agreed to pay. Most banking apps display full transaction details under a “details” link, including a reference number. Screenshot those details before the transaction ages off your online history.
Call the Merchant First
Many adjustments come from processing mistakes a manager can reverse in minutes. Duplicate charges, missing discounts, and mis-entered tips are all things the merchant can fix without your bank getting involved. Calling first also creates a record that you tried to resolve it directly, which strengthens your case if you have to escalate.
File a Formal Dispute With Your Bank
If the merchant won’t fix it, contact your bank. For debit cards, you have 60 days from the date the bank sent the statement showing the error.3eCFR. 12 CFR 1005.11 – Procedures for Resolving Errors For credit cards, the 60-day clock also applies, but your notice must be in writing and sent to the billing inquiry address on your statement, not the payment address.5eCFR. 12 CFR 1026.13 – Billing Error Resolution Most banks let you start a dispute in the app or over the phone as the initial notice.
How Long the Bank Has to Investigate
For a debit card dispute, the bank generally has 10 business days to investigate and reach a conclusion. If it needs more time, it can extend, but it must provisionally credit your account within those 10 business days while it keeps working.6Consumer Financial Protection Bureau. 1005.11 Procedures for Resolving Errors
Point of sale disputes have their own timeline. For most debit card errors, the extended investigation period is 45 calendar days. For point-of-sale debit card transactions specifically, the bank gets up to 90 calendar days. The same 90-day extension applies to foreign transactions and accounts open fewer than 30 days.6Consumer Financial Protection Bureau. 1005.11 Procedures for Resolving Errors The longer window exists because POS disputes often require merchant records, but it means you could be waiting three months for a final answer with a provisional credit sitting in your account in the meantime.
For credit card disputes, the issuer must acknowledge your written notice within 30 days and resolve the investigation within two complete billing cycles, up to a maximum of 90 days.5eCFR. 12 CFR 1026.13 – Billing Error Resolution Either way, the bank must report its findings to you within three business days of finishing the investigation.
If the Bank Rules Against You
When the bank decides no error occurred, it must send you a written explanation and tell you that you can request copies of the documents it relied on.7GovInfo. 15 USC 1693f – Error Resolution Ask for them. Banks sometimes deny disputes based on a merchant’s generic response rather than actual proof, and seeing the underlying paperwork tells you whether the investigation was real or perfunctory.
If you received a provisional credit, the bank will debit it back. Before it does, it must notify you of the date and amount, and it must honor your checks and pre-authorized payments for five business days after that notification without charging overdraft fees, giving you a short cushion to move money around.6Consumer Financial Protection Bureau. 1005.11 Procedures for Resolving Errors
File a CFPB Complaint
If the bank didn’t follow proper procedures or you believe the investigation was inadequate, you can submit a complaint to the Consumer Financial Protection Bureau at consumerfinance.gov/complaint. Companies generally respond within 15 days, though some cases take up to 60 days.8Consumer Financial Protection Bureau. Submit a Complaint A complaint doesn’t guarantee you’ll get your money back, but it applies regulatory pressure and creates an official record.
Sue Under the EFTA
For debit card disputes where the bank genuinely dropped the ball, the Electronic Fund Transfer Act lets you sue. You can recover your actual losses, statutory damages between $100 and $1,000, and attorney’s fees.9Office of the Law Revision Counsel. 15 USC 1693m – Civil Liability If the bank failed to provisionally credit your account within the required 10 days and either didn’t investigate in good faith or unreasonably concluded no error occurred, the court can award treble damages.10Office of the Law Revision Counsel. 15 USC 1693f – Error Resolution Small claims court handles most of these cases, and the EFTA’s fee-shifting provision means the bank pays your legal costs if you win.