A curtailment payment is money you send to your lender to reduce the principal balance of your loan before the loan is fully paid off.
When you make a regular monthly payment on a loan, part of that payment goes toward interest and part goes toward the principal — the original amount you borrowed. A curtailment payment is extra money you choose to send that goes entirely toward the principal, not toward interest. It shrinks the amount you still owe.
The word "curtail" means to cut short or reduce. A curtailment payment cuts short the life of your loan by paying down what you owe faster than your regular schedule requires. You are not required to make curtailment payments — they are optional. But when you do, you pay less interest overall because you are paying off the loan in less time.
Key Takeaways
- A curtailment payment is extra money sent directly to your loan principal, separate from your regular monthly payment.
- The entire curtailment amount reduces what you owe, unlike a regular payment which splits between principal and interest.
- Making curtailment payments lowers the total interest you pay over the life of the loan and shortens how long you owe money.
- You can make curtailment payments on mortgages, car loans, and some personal loans, but you should confirm your lender allows them first.
How curtailment payments reduce what you owe
To understand why curtailment payments matter, you need to see how a regular payment works. Suppose you have a $200,000 mortgage at 6% interest. Your first monthly payment might be $1,200. Of that $1,200, perhaps $1,000 goes to interest and $200 goes to principal. You still owe $199,800.
Now suppose you send an extra $500 curtailment payment that same month. That $500 goes straight to principal. You now owe $199,300 instead of $199,800. The next month, your interest is calculated on $199,300, not $199,800 — so your interest payment is slightly smaller, and slightly more of your regular payment goes to principal. This compounds over time.
The earlier in the loan you make curtailment payments, the more interest you save, because you are reducing the balance that future interest is calculated on. A $500 curtailment in month one saves more interest than a $500 curtailment in month 300.
Which loans allow curtailment payments
Most mortgages allow curtailment payments with no penalty. Many car loans do as well. Some personal loans and student loans permit them, but not all. A few lenders charge a prepayment penalty — a fee for paying off the loan early — though federal student loans do not.
Before you send extra money, contact your lender and ask: "Does my loan allow curtailment payments?" and "Is there a prepayment penalty?" Get the answer in writing or note the date, time, and name of the person you spoke with. Some lenders make it straightforward to send curtailment payments online; others require a phone call or a check marked "principal only."
If your lender does not allow curtailment payments, they may offer a different way to pay down your loan faster, such as switching to a shorter loan term or making biweekly payments instead of monthly ones.
The difference between curtailment and regular payments
A regular payment is what your loan contract requires you to pay each month. It includes both interest and principal. A curtailment payment is optional money you send on top of that, and it goes only to principal.
Think of it this way: your regular payment keeps you on schedule. Your curtailment payment gets you ahead of schedule. If you stop making curtailment payments, your regular payment obligation does not change. If you stop making regular payments, you fall behind and risk default.
Some people confuse curtailment with refinancing, which is taking out a new loan to pay off the old one. Curtailment is simpler — you are just sending extra money to the same lender, on the same loan.
When curtailment payments make sense
Curtailment payments make the most sense when you have extra money and your loan interest rate is high relative to what you could earn elsewhere. If your mortgage is at 6% and you have $5,000 in savings earning 0.01% in a savings account, sending that $5,000 as a curtailment payment saves you more in interest than you would earn keeping it in savings.
Curtailment payments also make sense if you want to own your home or car free and clear by a certain date. Each curtailment payment moves that date closer. Some people make curtailment payments when they receive a bonus, tax refund, or inheritance — money that was not part of their regular budget.
Curtailment payments make less sense if you have high-interest debt (like credit card debt) that you have not paid off yet. Paying down a 6% mortgage faster is less urgent than paying off a 20% credit card balance. Curtailment payments also make less sense if you might need that money soon for an emergency, because once you send it to the lender, it is harder to access.
How to make a curtailment payment
The process depends on your lender. Some lenders let you log into your online account and send extra money with a few clicks. Others require you to call and request a curtailment payment by phone. A few still accept checks in the mail.
When you send the payment, be clear about your intent. Write "principal only" or "curtailment payment" on the check or in the payment memo field. If you are paying by phone, tell the lender explicitly that you want the money applied to principal, not held in escrow or applied to next month's payment.
Ask your lender for confirmation that the curtailment was processed correctly. Some lenders send a receipt; others update your account statement. Check your next statement to confirm that your principal balance dropped by the amount you sent.
The long-term impact of curtailment payments
Small curtailment payments add up over time. A $100 curtailment payment each month on a 30-year mortgage can shorten the loan by several years and save tens of thousands of dollars in interest. A $500 curtailment payment each month can cut the loan term in half.
The exact savings depend on your interest rate, your loan amount, and how long you keep making curtailment payments. A mortgage calculator that lets you enter extra payments can show you the difference. Many lenders also provide this information on their websites.
Keep in mind that curtailment payments do not change your monthly payment obligation. You still owe the same amount each month. Curtailment payments straightforward reduce how much you owe overall and how long you owe it.
Frequently Asked Questions
Can I make a curtailment payment and then skip my next regular payment?
No. A curtailment payment is separate from your regular payment. You still owe your full regular payment the next month, even if you sent extra money this month. Skipping a regular payment can damage your credit and trigger late fees.
What if I send money to my lender but do not specify that it is a curtailment payment?
The lender may explore it to your next regular payment instead of to principal. Always be explicit. Write "principal only" on a check, use a memo field online, or call and state your intent clearly. Confirm the process on your next statement.
Do curtailment payments affect my credit score?
No. Curtailment payments do not appear on your credit report. Your credit score is based on payment history, amounts owed, and other factors. Making curtailment payments does not hurt your score, but it also does not help it directly — though paying off your loan faster does reduce your overall debt.
Can I make a curtailment payment on a student loan?
Federal student loans allow extra payments toward principal with no penalty. Private student loans vary — some allow them, others do not. Contact your loan servicer to ask. If you have multiple student loans, paying extra on the highest-interest loan first saves the most money.
What happens to my curtailment payment if I sell my house or car?
The curtailment payment reduces your loan balance, so you owe less when you sell. If you sell for more than you owe, you keep the difference. If you sell for less than you owe, you are responsible for the shortfall — but curtailment payments made before the sale reduce how large that shortfall is.