How Principal-Only Payments Work on Your Mortgage
What a principal-only payment is and why you might make one
A principal-only payment is extra money you send to your mortgage lender that goes entirely toward reducing the amount you owe, not toward interest or escrow. When you make your regular monthly payment, part of it covers interest, part covers principal, and part may cover property taxes and insurance held in escrow. A principal-only payment skips all of that and attacks the loan balance directly.
You make a principal-only payment by choice, usually when you have extra cash and want to pay off your mortgage faster or reduce the total interest you'll pay over the life of the loan. It's optional—your lender cannot require it, and you can make one payment or many, whenever you have the money.
The math is straightforward: if you owe $300,000 and send $5,000 as a principal-only payment, your balance drops to $295,000 immediately. On your next regular payment, less of that payment goes to interest because the balance is lower. Over years, this compounds into real savings on interest and shortens how long you're paying the loan.
Key Takeaways
- A principal-only payment reduces only the loan balance, not interest or escrow, and must be clearly labeled when you send it.
- Your lender may charge a fee for processing a principal-only payment, or may refuse them altogether, so check your loan documents and call before sending one.
- Principal-only payments reduce future interest and shorten your loan term, but they do not change your monthly payment amount unless you refinance or renegotiate.
- You can make principal-only payments through your regular payment method, but you must specify in writing that the money is for principal only, not a regular payment.
- If your mortgage is in forbearance, delinquent, or has a prepayment penalty, principal-only payments may not be allowed or may have consequences you need to understand first.
How to send a principal-only payment to your lender
Contact your lender directly before sending any principal-only payment. Call the customer service number on your mortgage statement and ask: "Can I make a principal-only payment, and if so, how?" Some lenders allow them freely; others charge a fee (typically $15 to $50); and some do not allow them at all or require you to make them only through certain channels.
When you send the payment, you must clearly label it as principal-only in writing. If you pay online or by phone, write "principal-only payment" in any note field. If you mail a check, include a letter stating the amount and that it is for principal reduction only. Without this label, your lender may apply it to your next regular payment instead, which defeats the purpose.
Some lenders allow principal-only payments only through their online portal or by phone; others accept them by mail or automatic transfer. Ask which method your lender prefers and whether there are any restrictions on timing—for example, some lenders may require principal-only payments to arrive by a certain date in the month to be processed that month.
What happens to your monthly payment after a principal-only payment
Your regular monthly payment amount does not change after you make a principal-only payment. If your payment is $1,200 per month, it stays $1,200 per month. What changes is how that $1,200 is split: more of it now goes to principal, and less goes to interest, because your loan balance is lower.
Over time, this shift saves you money. If you make a $5,000 principal-only payment on a 30-year mortgage, you might shorten the loan by several months and save thousands in interest. But the monthly payment itself does not drop unless you refinance the loan or renegotiate the terms with your lender.
If you want to lower your monthly payment, you would need to refinance—that is, take out a new loan to pay off the old one. A principal-only payment is not the same as refinancing and does not automatically reduce what you owe each month.
Prepayment penalties and when principal-only payments may not be allowed
Some mortgages, especially older ones or those with adjustable rates, include a prepayment penalty—a fee charged if you pay down the principal faster than the loan schedule requires. The penalty may apply to any extra principal payment, or only to payments above a certain amount. Check your loan documents (the note or deed of trust) or call your lender to find out whether your mortgage has a prepayment penalty and what it covers.
If your mortgage is in forbearance (a temporary pause on payments due to hardship), you typically cannot make principal-only payments until forbearance ends. If your loan is delinquent (you have missed payments), your lender may require you to catch up on missed payments before accepting principal-only payments. If you are in default or foreclosure, principal-only payments are usually not an option.
If you have an FHA, VA, or USDA loan, the rules may differ. Some government-backed loans allow principal-only payments without penalty; others do not. Ask your servicer (the company that collects your payments) whether principal-only payments are allowed on your specific loan type.
The difference between principal-only payments and making extra payments toward your regular bill
An extra payment toward your regular mortgage bill is different from a principal-only payment. When you make an extra payment—for example, paying $1,500 instead of $1,200—your lender typically applies the extra $300 to principal automatically. You do not have to label it or contact the lender in advance.
A principal-only payment, by contrast, is a separate transaction. You send it in addition to your regular payment, and you must specify that it is for principal only. The advantage is clarity: you know exactly where the money goes. The disadvantage is that some lenders charge a fee for processing it as a separate transaction.
For most people, making one extra payment per year (or adding a small amount to each regular payment) achieves the same result as a principal-only payment without the hassle or fee. The choice depends on your lender's policies and how you prefer to manage the money.
How principal-only payments affect your loan term and total interest
Every dollar of principal-only payment shortens your loan and reduces the total interest you pay. The exact savings depend on your interest rate, how much you pay, and when you pay it. A $5,000 principal-only payment on a 4% mortgage will save more in interest than the same payment on a 2% mortgage, because the interest rate is higher.
You can use a mortgage calculator (available free from most lenders' websites) to estimate how much time and interest a principal-only payment will save. Enter your loan balance, interest rate, and remaining term, then see what happens when you add a principal-only payment. This gives you a concrete picture of whether the payment is worth your cash.
Keep in mind that principal-only payments are most powerful early in the loan, when most of your regular payment goes to interest. After 15 or 20 years of payments, more of each regular payment already goes to principal, so an extra principal-only payment saves less interest than it would have early on.
When principal-only payments make sense and when they do not
A principal-only payment makes sense if you have extra cash, your mortgage interest rate is higher than what you could earn elsewhere, and you do not have high-interest debt (credit cards, personal loans) that you should pay down first. It also makes sense if you want to own your home free and clear sooner, even if the math does not show a huge interest savings.
A principal-only payment may not make sense if you have credit card debt at 18% interest—paying down the credit card first saves you more money. It may not make sense if your mortgage rate is very low (2% or less) and you could invest the money elsewhere at a higher return. It may not make sense if you need to keep cash on hand for emergencies or upcoming expenses.
Think of a principal-only payment as a choice, not an obligation. You control whether to make one, how much to send, and when to send it. If your lender charges a fee, factor that into your decision.
Frequently Asked Questions
Will making a principal-only payment lower my monthly payment?
No. Your monthly payment stays the same unless you refinance. What changes is how that payment is split between principal and interest—more goes to principal now because your balance is lower. To actually lower your monthly payment, you would need to refinance the loan.
Can I make a principal-only payment if I am behind on my mortgage?
Usually not. If you have missed payments, your lender will require you to catch up on the missed amounts first. Once you are current, you can ask about principal-only payments. If you are in default or foreclosure, principal-only payments are typically not an option.
Does my lender have to accept a principal-only payment?
No. Some lenders do not allow principal-only payments, or allow them only through specific channels. Always call your lender first to ask whether they accept them, whether there is a fee, and how to submit one. Do not assume they will accept it just because you send it.
What if I send a principal-only payment but my lender applies it to my next regular payment instead?
This happens when the payment is not clearly labeled. Always include a written note stating that the payment is for principal only. If your lender misapplies it, call immediately and ask them to correct it. Keep records of your communication in case you need to dispute the application later.
Is a principal-only payment the same as paying extra toward my mortgage?
Not exactly. Paying extra (like sending $1,500 instead of $1,200) usually goes to principal automatically. A principal-only payment is a separate transaction that you must label clearly. Both reduce principal, but a principal-only payment gives you more control over exactly where the money goes.