What happens to your interest rate when you miss a payment
Credit card companies charge two separate things when you pay late: penalty interest on the balance you owe, and sometimes a late fee added to your account. The penalty interest rate is almost always higher than your regular purchase APR, and it kicks in immediately once your payment is past due—usually after 30 days without a payment.
The exact penalty rate depends on your card's terms and your credit history. Most cards charge between 25% and 29.99% APR as a penalty rate, though some go higher. Your card issuer sets this rate when they approve you, and they're required to disclose it in your card agreement under the term "penalty APR" or "default rate." If you've never seen yours, you can find it in the pricing information section of your cardholder agreement or by calling the number on the back of your card.
The penalty rate applies to your existing balance, not just new purchases. If you owed $2,000 at a 15% regular APR and you miss a payment, that $2,000 balance now accrues interest at the penalty rate instead. The interest compounds daily, so the longer you stay behind, the faster the debt grows.
Key Takeaways
- Penalty interest rates typically range from 25% to 29.99% APR and apply to your entire existing balance, not just new charges.
- The penalty rate kicks in after your payment is 30 days late, and it can stay in effect for six months or longer depending on your card's terms.
- Late fees are charged separately from interest and usually run $25 to $40 for the first late payment, with higher fees for repeat offenses within six months.
- You can sometimes get the penalty rate removed by calling your card issuer and asking for a one-time reversal, especially if you have a good payment history.
- Paying at least the minimum before the due date stops the penalty rate from applying, even if you can't pay the full balance.
When the penalty rate takes effect and how long it lasts
The penalty APR does not apply the moment you miss a payment. Card issuers must wait until your account is 30 days past due before they can impose the higher rate. This means if your payment is due on the 15th and you pay on the 20th, you're late but the penalty rate doesn't apply yet. Once you hit 30 days late, the penalty rate kicks in retroactively to the first day of the billing cycle in which you missed the payment.
How long the penalty rate stays in effect depends on your card agreement. Most cards keep the penalty rate active for at least six months, though some keep it longer. The only way to get it removed before that period ends is to call your card issuer and ask. Many issuers will reverse a penalty rate one time if you have a good payment history and can explain what happened. There's no harm in asking—the worst they can say is no.
If you make all your payments on time for six months after the penalty rate is applied, the rate usually drops back to your regular APR. Check your card agreement for the exact terms, because some issuers have different timelines or conditions.
Late fees and how they stack with interest charges
In addition to the penalty interest rate, your card issuer charges a late fee when your payment is past due. The first late fee is typically $25 to $40, depending on your card and issuer. If you miss another payment within the next six months, the second late fee is usually higher—often $35 to $40. After that, the fee caps out at the higher amount for any additional late payments within that six-month window.
The late fee is charged once and added to your balance as a separate line item. It's not interest—it's a flat penalty. However, once it's added to your balance, interest accrues on it just like the rest of your debt. So a $35 late fee will start earning interest at your penalty rate immediately.
Federal law caps late fees at the greater of $25 or 1% of your minimum payment due, with some exceptions for repeat offenses. This means issuers can't charge unlimited fees, but they can charge the maximum allowed by law.
How interest compounds on a late balance
Credit card interest compounds daily, which means the interest you owe each day is calculated on your balance plus all the interest that has already accrued. With a penalty rate of 27% APR, your daily interest rate is roughly 0.074% per day. On a $2,000 balance, that's about $1.48 per day in interest charges at the penalty rate.
The longer you stay late, the faster this grows. After 30 days at the penalty rate, you've accrued roughly $44 in interest on that $2,000 balance. After 60 days, it's closer to $90. After 90 days, you're looking at roughly $140 in interest alone, not counting the late fees. The exact amount varies based on your specific APR and how your issuer calculates daily interest, but the pattern is the same: the debt grows faster the longer you wait.
Making a payment stops the clock on new interest accrual, but only on the amount you pay. If you owe $2,000 and you pay $500, interest continues to accrue on the remaining $1,500 at the penalty rate until you bring the account current.
Getting the penalty rate removed or reduced
If you've been hit with a penalty rate and you have a history of on-time payments, you can call your card issuer and ask them to remove it. This is a one-time courtesy that many issuers will grant, especially if you've been a customer for a while and this is your first late payment. The conversation is straightforward: explain what happened, apologize, and ask if they can reverse the penalty rate as a one-time courtesy.
Some issuers will also negotiate the penalty rate down to a lower rate rather than removing it entirely. If they won't remove it, asking them to reduce it to your regular APR or something in between is worth trying. Again, there's no penalty for asking, and you might save yourself hundreds of dollars in interest charges.
If you can't reach an agreement with your issuer, your only other option is to pay down the balance as quickly as possible. Once the penalty period ends (usually six months), the rate drops back to your regular APR, and the interest charges slow down. In the meantime, every dollar you pay goes toward stopping the interest from growing further.
How to avoid penalty interest in the first place
The simplest way to avoid penalty interest is to pay at least your minimum payment by the due date shown on your statement. You don't have to pay the full balance—just the minimum. This keeps your account current and prevents the penalty rate from applying.
If you know you're going to be late, contact your card issuer before the due date and ask about a hardship program or payment plan. Many issuers have programs that can lower your interest rate or waive fees if you're facing temporary financial difficulty. These programs vary by issuer, but they're worth asking about if you see a late payment coming.
Setting up automatic payments for at least the minimum amount is the easiest way to ensure you never miss a due date. You can set it to pay on a specific date each month, and it removes the risk of forgetting. If you can afford it, set the automatic payment to your full balance so you never carry interest at all.
What to do if you're already behind on payments
If you're already 30 days or more late, the penalty rate is already in effect. Your first step is to make a payment—any payment—to stop the account from going further past due. Even a small payment shows the issuer you're working on it and can sometimes prevent them from closing your account or reporting the late payment to credit bureaus.
After you make a payment, call your issuer and explain your situation. If this is your first late payment and you have a good history, ask them to reverse the penalty rate and the late fee as a one-time courtesy. Many issuers will do this. If they won't, ask if they have a hardship program that can lower your rate or create a payment plan.
If you can't afford to bring the account current right away, ask about a payment arrangement where you pay a set amount each month until you catch up. This keeps the account from going further past due and may prevent additional late fees from being charged. Document any agreement you make in writing by asking the issuer to send you a confirmation email or letter.
Frequently Asked Questions
Can a credit card company charge interest on a late fee?
Yes. Once a late fee is added to your balance, it accrues interest at your current APR—which is usually the penalty rate if your account is late. The late fee itself is a one-time charge, but the interest on it compounds daily like the rest of your debt.
Does paying part of my late balance stop the penalty interest?
Paying part of your balance stops new interest from accruing on the amount you paid, but interest continues on the remaining balance at the penalty rate. You need to bring your account current (pay all past-due amounts) to stop the penalty rate from applying to the rest of your balance.
How long does a penalty rate stay on my account?
Most card issuers keep the penalty rate in effect for six months, though some keep it longer. After six months of on-time payments, the rate usually drops back to your regular APR. You can call and ask for it to be removed earlier, especially if you have a good payment history.
What's the difference between a late fee and penalty interest?
A late fee is a flat charge (usually $25 to $40) added once when your payment is past due. Penalty interest is a higher APR that applies to your entire balance and compounds daily. You can be charged both at the same time.
Can I negotiate my penalty rate down?
Yes. Call your card issuer and explain your situation. Many will remove the penalty rate as a one-time courtesy if you have a good history, or reduce it to something lower than the maximum. It costs nothing to ask, and you might save hundreds in interest charges.