Late Car Payment Cost Calculator

A few days late usually costs a late fee and almost nothing in interest. Thirty days late is different: it can reach your credit report and raise the rate on your next car loan or refinance for years. Enter your payment and how late you are to see what it costs now — and what crossing day 30 would add.

⏰ Your Payment

$
days
Assumes nothing has been paid since the missed due date.
$
%
days
Usually 10 to 15 days. Check your contract or lender app.
$
Commonly $25 to $50.
%
Commonly 3% to 5% of the payment.
$
Some states and contracts cap the fee. Leave blank if none.

📉 Your Credit & Next Loan

$
A loan you might take in the next year or two. Enter 0 to skip.

This Late Payment

Payments now past due
Late fees
Extra interest from paying late
Credit report status

If It Reaches 30 Days

Estimated score drop
Estimated rate on next loan
Extra interest on that loan
Stays on your credit report7 years
⚠️ An estimate, not a credit score prediction. Late fees follow the terms you enter; your contract and state law decide the real fee. Score drops are interpolated between two examples FICO has published (a 793 score losing 63–83 points and a 607 score losing 17–37 after one 30-day late payment); your result depends on the rest of your credit file. Rates are interpolated from Experian's Q2 2026 averages by credit tier. Lenders report a payment as late once it is 30 or more days past due, and the effect on your score fades over the seven years it stays on your report.

Why the Interest Barely Matters — and Day 30 Does

Most auto loans charge simple interest by the day. Paying late means the part of your payment that would have reduced the balance sits on the loan for a few extra days. On a $520 payment toward a $22,000 balance at 8.5%, that's about $364 of principal — and 12 days of interest on $364 is roughly $1.

The late fee is the cost you notice: a flat $25 to $50, or 3% to 5% of the payment, once the grace period runs out. On the same $520 payment, that's $26 to $30.

The cost you don't see comes later. Lenders generally report a payment to the credit bureaus once it is a full 30 days past due. In FICO's published examples, one 30-day late payment knocked a 793 score down to the 710–730 range. Apply for your next loan while that mark is fresh, and the higher rate can cost $1,100 to $2,100 on a typical $25,000 to $30,000 five-year loan.

Days lateWhat usually happensTypical cost
1–10Inside most grace periods; no fee, not reportedAbout $1 of interest
11–29Late fee charged; still not reported to bureaus$25–$50 fee
30–59Reported as 30 days late; a second payment is now dueFees + a score drop that can raise your next rate
60–89Reported as 60 days late; collection calls, default noticesA larger score drop; repossession risk rises
90+Many lenders treat the loan as in defaultRepossession, fees, and a deficiency balance

If You Can't Pay Before Day 30

Read the full breakdown, day by day, in How Much Does a Late Car Payment Cost?

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