How to Pay Down Your Mortgage Faster With Extra Principal Payments
What an additional principal payment is and why it matters
An additional principal payment is money you send to your lender beyond your regular monthly mortgage payment, and it goes directly toward reducing the amount you owe on the loan itself rather than toward interest or escrow. When you make a regular payment, part of it covers interest for that month, part covers property taxes and insurance (if escrowed), and only the remainder reduces what you actually owe. An extra principal payment skips all of that and shrinks your loan balance immediately.
This matters because the less you owe, the less interest you pay over the life of the loan. On a 30-year mortgage, you can cut years off the repayment timeline and save tens of thousands in interest charges. The catch is that your lender has to process the extra money correctly—sending it to the wrong account or labeling it wrong can mean it sits in a suspense account instead of hitting your principal.
Not every borrower should make extra principal payments. If you have high-interest debt elsewhere, a low emergency fund, or a mortgage rate below 3 percent, you may get more value from paying down credit cards first or building savings. But if your rate is moderate to high and your finances are stable, extra principal payments are one of the most straightforward ways to reduce what you owe.
Key Takeaways
- Extra principal payments reduce only the amount you owe, not your monthly payment, so your regular bill stays the same unless you refinance.
- You must contact your lender before sending extra money and confirm the exact process they use to apply it, because some lenders route extra payments to suspense accounts by default.
- Payments made early in the loan term save the most interest, because interest is calculated on the remaining balance each month.
- Some mortgages have prepayment penalties that charge you a fee if you pay off the loan early, so check your loan documents before sending large extra payments.
- Making extra principal payments does not lower your monthly payment unless you refinance or modify the loan.
How to send an extra principal payment to your lender
Contact your lender's payment department directly—not the customer service line—and ask for the exact procedure they use to accept extra principal payments. Some lenders have a dedicated phone number or online portal for this; others require a written request with your loan number and the amount you want applied to principal. Write down the name of the person you speak with and the date, because you need proof of the instruction if the payment goes to the wrong place.
When you send the payment, include a written note with your loan number and a clear statement: "Apply this payment to principal only." Do not assume the lender will figure it out. Many lenders default to applying extra money to the next month's payment or to a suspense account, which delays the benefit and can create confusion on your account. If you pay online, use the memo field or send a separate email to the address the lender gave you.
Keep copies of everything: the confirmation from your lender about how to send the payment, your payment receipt, and any written instructions you included. Check your next loan statement to confirm the principal was reduced. If it was not, contact the lender immediately and ask them to correct it.
The difference between paying extra principal and paying biweekly
A biweekly payment plan is a structured program where you pay half your monthly mortgage every two weeks instead of the full amount once a month. Because there are 26 biweekly periods in a year and only 12 months, you end up making 13 full payments instead of 12—one extra payment per year applied to principal. Some lenders offer this as a free service; others charge a setup fee or monthly fee to administer it.
An additional principal payment is different because you control the amount and timing. You can send $50 one month and $500 the next, or nothing for several months. Biweekly plans lock you into a fixed schedule. Biweekly plans can be useful if you want automation and do not want to think about it, but they cost money at some lenders and offer no advantage over simply making one extra payment per year on your own schedule. If your lender charges a fee for biweekly payments, you are better off making your own extra principal payments when you have the money.
Prepayment penalties and when they apply
Some mortgages, particularly those issued during the 2000s or those with subprime rates, include a prepayment penalty—a fee charged if you pay off the loan early or pay down principal faster than the schedule allows. The penalty is usually a percentage of the amount you pay early (often 1 to 5 percent) or a flat fee, and it can apply for a set number of years (commonly three to five years from the loan start date).
Check your loan documents—specifically the promissory note or the Truth in Lending Act (TILA) disclosure you received at closing—for any mention of prepayment penalties. If you see language about "prepayment," "early payoff," or "acceleration," contact your lender and ask directly whether your loan has a penalty and when it expires. If it does and you are still within the penalty period, calculate whether the fee is worth paying. On a large extra payment, a 3 percent penalty might cost you $3,000, which could outweigh the interest you would save.
Federal law prohibits prepayment penalties on most mortgages issued after 2010, but older loans and some specialty mortgages are exempt. If you are unsure, ask your lender in writing and keep their response.
How extra principal payments affect your monthly payment and loan term
Making extra principal payments does not lower your monthly mortgage payment. Your regular payment stays the same because it was calculated at the time you took out the loan based on the original loan amount, interest rate, and term. Paying extra principal reduces the total amount you owe, which means you pay off the loan sooner and pay less interest overall, but your monthly bill does not change unless you refinance the entire loan.
If you want to lower your monthly payment, you would need to refinance—take out a new loan to pay off the old one and restructure the terms. Refinancing has its own costs (closing costs, appraisal fees, title search) and takes time, so it only makes sense if interest rates have dropped significantly or if you need to free up cash flow immediately. Extra principal payments are simpler and cheaper if your goal is just to pay off the loan faster and save on interest.
The loan term shortens automatically as you pay down principal. If you have a 30-year mortgage and make extra principal payments consistently, you might pay it off in 20 or 25 years instead. Your lender will show the new payoff date on your statement each month as the balance drops.
When extra principal payments make financial sense
Extra principal payments are most valuable if your mortgage interest rate is 4 percent or higher and you have already built an emergency fund of three to six months of expenses. The higher your rate, the more interest you save by paying down principal early. If your rate is below 3 percent, the money you would put toward extra principal might earn more in a high-yield savings account or low-risk investment, so compare the numbers before deciding.
Do not make extra principal payments if you are carrying high-interest debt like credit card balances, medical debt, or personal loans. Pay those down first—the interest rate is almost always higher than your mortgage rate, and the psychological benefit of eliminating that debt is real. Similarly, if your emergency fund is thin or you have upcoming large expenses (a car replacement, home repairs, medical costs), build your cash reserves first. An extra principal payment does not help you if you end up borrowing on a credit card at 18 percent interest because you had no cash cushion.
Extra principal payments also make sense if you plan to stay in the home for at least five more years. The longer you hold the mortgage, the more of your payment goes toward interest rather than principal, so the benefit of paying extra early is larger. If you think you might sell or refinance within a few years, the interest savings may not justify the money you tie up in the loan.
Tracking extra principal payments and what to watch for
After each extra principal payment, your loan statement should show the principal balance decreased by the amount you sent. Review your statement carefully each month, especially in the first few months after you start making extra payments. If the balance does not drop or drops by less than you sent, contact your lender immediately and ask where the money went. Do not wait for the next statement—call the payment department and ask them to trace the transaction.
Keep a simple spreadsheet or note of every extra payment you make: the date, the amount, and the confirmation number or receipt. This creates a record if there is ever a dispute about what you paid. Some lenders are slow to post extra payments, so do not panic if it takes a week or two to show up on your statement, but it should appear within 30 days.
If you refinance your mortgage, your extra principal payments stop benefiting the old loan and you start fresh with a new one. Make sure you understand the terms of the new loan before refinancing, and ask whether the new lender accepts extra principal payments in the same way.
Frequently Asked Questions
Can I make extra principal payments if I have an FHA or VA loan?
Yes. FHA and VA loans do not prohibit extra principal payments, but the process for sending them varies by lender. Contact your lender's payment department and confirm their procedure. Some lenders that service government-backed loans are stricter about routing payments correctly, so written instructions are especially important.
What if I want to make a large lump-sum payment toward principal?
Call your lender before sending a large payment and confirm they can process it correctly. For amounts over $5,000 or $10,000, some lenders require written authorization or a separate form. Get the instruction in writing, send the payment by a method that provides a receipt (cashier's check, wire transfer, or online payment with confirmation), and follow up on your next statement to confirm it was applied to principal.
Does paying extra principal hurt my credit score?
No. Paying down your mortgage balance does not lower your credit score. Your score is based on payment history, credit utilization (for credit cards), length of credit history, and credit mix. Paying extra principal actually improves your financial position because you owe less, but it does not directly boost your score the way paying off a credit card would.
What happens to extra principal payments if I sell the house?
When you sell, the remaining loan balance is paid off from the sale proceeds. Any extra principal payments you made reduce that balance, so you owe less at closing and keep more of the sale price. The benefit is real, but it only matters if you actually sell. If you refinance instead, the old loan is paid off and you start a new one, so the extra principal payments on the old loan are locked in as a benefit you already received.
Can I make extra principal payments automatically each month?
Some lenders allow you to set up automatic extra principal payments through their online portal or by phone. Ask your lender whether this option is available and whether it costs anything. If they offer it, confirm in writing how the payment will be labeled and routed. If they do not offer automation, you can set a calendar reminder to make the payment manually each month, which takes only a few minutes.