To make principal-only mortgage payments, send extra money to your servicer labeled “apply to principal only,” make sure your regular monthly payment for the period has already been satisfied, and check your next statement to confirm the balance dropped by that exact amount. The required monthly payment stays the same; the extra money shortens the loan. The labeling step is what separates a payment that reduces your balance from one that sits in a holding account or gets credited to next month’s installment.
Confirm Your Loan Allows Extra Payments Without Penalty
Most residential mortgages originated since 2014 are classified as qualified mortgages under federal consumer protection rules, and qualified mortgages face strict limits on prepayment penalties. Where a penalty is allowed at all, it can’t exceed 2% of the prepaid balance during the first two years or 1% during the third year, and no penalty is permitted after three years. A qualified mortgage can only carry a prepayment penalty if it has a fixed rate and isn’t classified as “higher-priced,” which excludes most subprime and high-rate loans.1eCFR. 12 CFR 1026.43 – Minimum Standards for Transactions Secured by a Dwelling
Some jumbo loans, investment property loans, and other non-standard products fall outside the qualified mortgage definition and could carry steeper penalties. Check your original loan documents or call your servicer before you send anything extra. The vast majority of recent residential mortgages have no prepayment penalty at all, but two minutes of verification beats a surprise charge.
How to Submit the Payment So It Actually Reduces Principal
If you don’t tell your servicer the extra money is for principal, the servicer will almost certainly apply it to next month’s installment or park it in a holding account. Clear labeling is the whole game.
Through the Online Portal
Most servicers offer a dedicated option for extra principal payments inside their online portal. Look for language like “additional principal,” “one-time payment,” or “principal reduction.” It’s usually a separate selection from the standard monthly payment screen. Choose that option, enter the amount, and save the confirmation number. Some portals display an updated balance and projected payoff date right after you submit.
By Mail
Write “Apply to Principal Only” on the memo line of the check. Some servicers include a supplemental payment coupon in the monthly billing packet with a dedicated field for extra principal; use it when available, because it routes the payment to the right processing team. Send the check to the address your servicer designates for additional payments, which sometimes differs from the standard lockbox address. Certified mail with return receipt gives you proof of delivery if a dispute comes up later.
By Phone
Call and explicitly request that the payment be applied to principal only. If the automated system doesn’t offer a principal-only option, press through to a live representative. Get verbal confirmation and write down the representative’s name, the date, and any confirmation number. Phone payments carry more risk of miscommunication than the other methods, so check your account online within a few days to confirm.
Timing Within the Billing Cycle
Your regular monthly payment for the current billing period needs to be satisfied first. If you have outstanding late fees or a past-due balance, servicers apply incoming funds to those obligations before anything touches principal. Time the extra payment to arrive after your regular payment has cleared for the month.
What Your Servicer Is Required to Do With the Money
Federal regulations set specific rules about how servicers handle your payment. A servicer must credit a payment as of the date it’s received, not the date it gets around to processing. If the servicer receives a payment that doesn’t match its published formatting requirements but accepts it anyway, the law gives the servicer five days to credit it.2eCFR. 12 CFR 1026.36 – Prohibited Acts or Practices and Certain Requirements for Mortgage Loans
Here’s the trap. If the servicer treats your extra money as a “partial payment,” meaning less than a full monthly installment and not clearly designated as principal, the servicer can legally hold it in a suspense or unapplied funds account until enough accumulates to cover a full monthly payment.2eCFR. 12 CFR 1026.36 – Prohibited Acts or Practices and Certain Requirements for Mortgage Loans A $500 principal payment can sit doing nothing for weeks if the servicer doesn’t recognize what it’s for. A properly designated principal-only payment sent after your regular monthly payment shouldn’t end up in suspense, but vague instructions leave the door open.
One expectation to adjust: a principal-only payment won’t change your monthly escrow amount. Escrow is recalculated during a scheduled annual analysis based on anticipated tax and insurance disbursements, not triggered by voluntary principal reductions.3Consumer Financial Protection Bureau. 1024.17 Escrow Accounts Your total monthly bill will not drop after extra principal payments.
Verify the Payment Landed in the Right Place
Check your next monthly statement or online dashboard within a few days of the payment processing. You’re looking for two things.
First, the principal balance should have dropped by the exact dollar amount of your extra payment. If the amount shows up labeled as “unapplied funds” or “escrow deposit” instead of a principal reduction, the servicer made an error that needs correcting.4Fannie Mae. Understanding Your Monthly Mortgage Statement
Second, your transaction history should show the payment categorized specifically as a principal payment, not as an advance on a future monthly installment. When correctly applied, interest for the following month calculates on the reduced balance, which is the entire financial benefit of the exercise.5Consumer Financial Protection Bureau. How Does Paying Down a Mortgage Work If you make extra payments for six months without checking, you might discover the servicer has been treating them as advance installments the whole time. Unwinding that is significantly harder than catching it in the first cycle.
Fixing a Misapplied Payment
If you spot a misapplication, don’t rely on a phone call. File a written notice of error with your servicer. A written notice triggers legal deadlines that a phone conversation does not. Under federal error resolution rules, your servicer must send written acknowledgment within five business days of receiving your notice, then either correct the error or explain why it disagrees within 30 business days. The servicer can extend that resolution period by up to 15 additional business days if it notifies you of the extension in writing before the initial deadline expires.6eCFR. 12 CFR 1024.35 – Error Resolution Procedures
Send the notice to the address your servicer designates for disputes or qualified written requests, which is often different from the payment address. Keep a copy and send it by certified mail so you have proof of the date received. If the servicer doesn’t respond within the required timeframe or refuses to correct a clear misapplication, you can file a complaint with the Consumer Financial Protection Bureau.
Use the Lower Balance to Cancel PMI Early
If you’re paying private mortgage insurance, extra principal payments can let you drop that cost sooner than your original schedule predicts. Under the Homeowners Protection Act, you can request PMI cancellation once your principal balance falls to 80% of the home’s original purchase price. Your servicer must grant the request if you’re current on payments, have a good payment history, and can show that the home’s value hasn’t declined below its original value, which typically means providing an appraisal.7Office of the Law Revision Counsel. 12 USC 4902 – Termination of Private Mortgage Insurance
Even without a request from you, your servicer must automatically terminate PMI once the balance hits 78% of the original value based on the original amortization schedule.7Office of the Law Revision Counsel. 12 USC 4902 – Termination of Private Mortgage Insurance The catch: that automatic trigger is based on when you were scheduled to reach 78%, not when you actually get there through extra payments. If you hit 78% ahead of schedule, you need to proactively request cancellation rather than wait for the automatic date. Many borrowers continue paying PMI for months or years longer than necessary because they don’t realize this.8Consumer Financial Protection Bureau. When Can I Remove Private Mortgage Insurance (PMI) From My Loan