To reduce your total loan cost, you have to move one of three numbers: the interest rate, the length of the loan, or the outstanding principal. Everything else is a variation on those three levers. On a 30-year mortgage, interest alone can nearly equal the original amount borrowed, so a change that looks small on paper — a quarter-point rate cut, one extra payment a year, a shorter term at origination — can save tens of thousands of dollars by the time the loan is paid off. Several of these strategies stack, and a few cost nothing to set up.
Shorten the Loan Term
Choosing a shorter repayment period is the most powerful single change you can make. A 15-year mortgage charges interest for half as long as a 30-year mortgage, and lenders typically offer lower rates on shorter terms because they carry less risk. Together, fewer years of interest and a lower rate can cut total interest by 40 percent or more compared to a 30-year loan on the same balance.
The catch is a higher monthly payment. You are compressing the same principal into fewer years, so each installment is larger. Before locking in a shorter term, make sure the payment fits comfortably inside your budget, because a missed payment erases some of what the shorter term was supposed to save.
Pay Down Principal Faster
If a shorter term does not fit your budget, extra principal payments produce a similar effect on your own timing. Interest accrues each month on the outstanding balance, so every extra dollar you send to principal shrinks the base that future interest is calculated against.
A common approach is switching to biweekly payments. You pay half your normal monthly amount every two weeks, which produces 26 half-payments a year, or the equivalent of 13 full monthly payments instead of 12. That extra payment goes entirely to principal. On a 30-year mortgage, this alone can shave roughly four to five years off the schedule.
Lump sums work too. A tax refund, a bonus, or an inheritance applied to principal eliminates years of compounding interest on that portion of the balance, and the earlier in the loan you do it, the more you save. Before sending extra money, confirm with your servicer that it will be applied to principal rather than held to cover next month’s payment.
Lower the Interest Rate
The other big lever is the rate itself. There are three practical ways to move it: buy it down at closing, refinance later, or take a discount for automating payments.
Discount Points at Closing
Discount points let you prepay interest upfront in exchange for a permanently lower rate. One point costs 1 percent of the loan amount, so on a $300,000 mortgage, one point costs $3,000. The exact rate reduction per point varies by lender and market conditions.1Consumer Financial Protection Bureau. How Should I Use Lender Credits and Points
Points pay off only if you keep the loan long enough to earn back their cost through lower payments. Divide the cost of the points by the monthly savings to find your break-even month. If it lands at 48 months and you plan to stay in the home at least that long, points come out ahead. Sell or refinance sooner and the upfront cost was wasted.
Refinancing
Refinancing replaces your current loan with a new one, ideally at a lower rate, a shorter term, or both. Even a modest rate cut on a large balance produces meaningful savings across the remaining years.
Closing costs on a refinance typically run 2 to 5 percent of the new loan amount and include appraisal fees, title insurance, and origination charges of roughly 0.5 to 1 percent.2Fannie Mae. Closing Costs Calculator Federal rules require your lender to deliver a Closing Disclosure at least three business days before you sign, so every line is available for review before you commit.3eCFR. 12 CFR 1026.19 – Certain Mortgage and Variable-Rate Transactions
Some lenders advertise “no-closing-cost” refinances, but the costs are still there. They get rolled into the loan balance or paid for with a higher rate, often 0.25 to 0.50 percent above what you would otherwise qualify for. Across the full term, that can cost more than paying the closing costs upfront.
The break-even test is the same as for points. Divide total closing costs by the monthly payment savings. If closing costs are $6,000 and you save $200 a month, break-even is 30 months. Keep the loan longer and refinancing reduces your total cost; sell or pay off sooner and it does not. Your existing Truth in Lending disclosure lists your current annual percentage rate and total finance charge, which gives you a clean baseline for comparing new offers.4Office of the Law Revision Counsel. 15 USC 1638 – Transactions Other Than Under an Open End Credit Plan
Autopay Discount
Many servicers offer a small rate reduction, typically 0.25 percent, for enrolling in automatic payments from a linked bank account. On federal student loans this discount is standard.5Federal Student Aid. How Do I Check If I Am on Auto Pay for My Monthly Student Loan Payment Some private lenders and mortgage servicers offer similar incentives, though availability and size vary. A quarter point sounds trivial, but on a $250,000 balance over 20 years it saves several thousand dollars. The discount applies only while autopay is active, so canceling it or changing the linked account reverts the rate.
Recast Instead of Refinancing
If you have a lump sum but your current rate is already competitive, recasting can save money without the cost of a refinance. You make a large payment toward principal, often $5,000 or more, and the lender recalculates your monthly payment against the reduced balance while keeping your existing rate and term.
The administrative fee is usually a few hundred dollars, against thousands in refinance closing costs. The tradeoff is that the rate does not change, so recasting only helps when your rate is already low and you want a smaller monthly payment. FHA, VA, and USDA loans are generally not eligible.
Drop Mortgage Insurance as Soon as You Can
Private mortgage insurance protects the lender, not you, when your down payment was less than 20 percent. It adds to your monthly payment without touching your balance, so getting rid of it is pure savings.
Under the Homeowners Protection Act, you can request PMI cancellation once your loan balance reaches 80 percent of the home’s original value. The request must be in writing, you must be current on payments with a good payment history, and the property value cannot have dropped below its original appraised amount.6Office of the Law Revision Counsel. 12 USC 4902 – Termination of Private Mortgage Insurance
Even without a request, your servicer must automatically terminate PMI when your balance is scheduled to reach 78 percent of the original value, provided you are current.6Office of the Law Revision Counsel. 12 USC 4902 – Termination of Private Mortgage Insurance There is also a final backstop: if PMI has not ended by any other route, the servicer must cancel it at the midpoint of the amortization schedule, which is the 15-year mark on a 30-year loan, as long as you are current.7Consumer Financial Protection Bureau. When Can I Remove Private Mortgage Insurance (PMI) From My Loan Extra principal payments get you to the 80 percent threshold faster, so the biweekly, lump-sum, and recast strategies above also accelerate PMI removal.
These cancellation rules apply only to conventional loans. FHA loans carry their own mortgage insurance premium under different rules.7Consumer Financial Protection Bureau. When Can I Remove Private Mortgage Insurance (PMI) From My Loan For FHA loans originated after June 3, 2013 with less than 10 percent down, annual MIP lasts the entire loan term and never drops off on its own. With at least 10 percent down, MIP runs 11 years. Because FHA MIP cannot be canceled the way conventional PMI can, the usual escape is to refinance into a conventional loan once you have 20 percent equity, which requires no mortgage insurance at all.
Check for Prepayment Penalties First
Before making extra payments or paying a loan off early, confirm your loan does not charge you for it. Prepayment penalties have become less common on residential mortgages under federal restrictions, but some loans still carry them.
On qualified mortgages, prepayment penalties are limited to the first three years. During the first two years, the penalty cannot exceed 2 percent of the amount prepaid, and during the third year it cannot exceed 1 percent. After three years, no penalty is allowed.8eCFR. 12 CFR 1026.43 – Minimum Standards for Transactions Secured by a Dwelling High-cost mortgages cannot carry prepayment penalties at all. Your Loan Estimate discloses whether one applies, its maximum amount, and the date it ends.9Consumer Financial Protection Bureau. Section 1026.37 Content of Disclosures for Certain Mortgage Transactions (Loan Estimate) If your loan does have one, timing extra payments or a refinance for after the penalty window expires preserves the savings.
If You’re Struggling, Avoid Modification Scams
Reducing total cost assumes you can afford your current payments. If you cannot, and you are looking into a loan modification, watch out for fraud. Under federal rules, mortgage relief companies cannot collect fees until they have delivered a written offer from your lender that you find acceptable, along with a description of the proposed changes and a reminder that you can reject the offer at no charge.10Consumer Financial Protection Bureau. What Are Mortgage Loan Modification Scams
Treat any of these as red flags: upfront fees before work is done, instructions to stop making mortgage payments, requests to sign over the property title, or directions to send payments to someone other than your current servicer. If you need modification help, contact your servicer’s loss mitigation department directly. There is no cost to apply through your own lender.