Finance category
Mortgage, loan, investing, tax, and money calculators.
Late Payment Fee Calculator
Most loans have a 15-day grace period and then charge either a flat fee or 5% of the payment. This calculator sizes both the fee and the extra interest accrued during the late period.
Total cost of late payment
$0
Late fee
$0
Extra interest accrued
$0
Days past grace period
0
How the math works
Late fees usually kick in after a 15-day grace period on mortgages. Typical structure: 5% of the scheduled payment, or a flat $35-75. Credit cards: $30-41 depending on card type and prior history. Plus interest continues to accrue on unpaid balance.
Repeated late payments (30+ days) trigger credit reporting to the bureaus — a single 30-day mortgage late can drop your FICO 60-110 points and stay on your report 7 years. Avoid at almost any cost.
How to Use
- Enter the scheduled payment amount.
- Select fee type: percent of payment, flat, or greater-of.
- Enter fee percentage and/or flat dollar amount.
- Enter days past due and your loan's grace period.
- Enter rate to estimate extra interest accrued.
Frequently Asked Questions
When does a late payment hurt my credit?
Once 30 days past due. A single 30-day mortgage late drops FICO 60-110 points and stays on the credit report 7 years. Servicers usually don't report until that point — pay at day 29 if at all possible.
Can I negotiate a waived late fee?
Usually yes for first offenses on otherwise-good accounts. Call the servicer, explain circumstances, and ask for goodwill waiver. Credit card issuers waive first-offense late fees 80%+ of the time.
Does paying late cost more in interest?
Yes — extra days of interest accrue on the unpaid balance. Plus some mortgages re-amortize after missed payments, which can change future payment structure. The fee is often small relative to the cumulative interest and credit damage.
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