According to Money Saving Expert Martin Lewis, you should overpay your mortgage only if your mortgage interest rate is higher than the after-tax interest rate you can earn on savings. If your savings rate is higher, it is better to save the money to pay off a larger chunk later. Overpaying reduces the loan term and saves on interest.
KEY RULE: Only overpay if your mortgage rate is higher than the rate you'd earn saving. For example, £10,000 in savings at 2% earns £200 for the year, yet use it to overpay a 3% mortgage and it reduces costs by £300 for the year.
Overpaying your mortgage could cut the amount of interest you pay, as the additional payments will reduce your outstanding mortgage balance.
If you have a fixed-rate mortgage, you'll have an annual overpayment allowance (AOA), which is the amount you can overpay each year without incurring any charges. Your AOA is equivalent to 10% of the outstanding balance of your mortgage.
To pay off a 25-year mortgage in 10 years, you need to make significant extra principal payments through strategies like increasing monthly payments, making bi-weekly payments (effectively one extra payment a year), applying windfalls (bonuses, refunds) as lump sums, or refinancing to a shorter term, focusing on early payments to maximize interest savings.
Interest Savings
Not only will you be mortgage-free sooner, but you'll pay significantly less by reducing your principal balance faster. In the above example, adding an amount to your monthly payment ($184.35) that equals one extra payment each year could lower your total interest by $101,654.
Paying off a loan may help you reduce your DTI and qualify for a mortgage, but it could also drop your credit score a few points, so it may be better to reduce your overall debt balance but not pay off any loans or credit cards in full.
The 3-7-3 Rule in mortgages isn't a loan type but a federal timeline from the TILA-RESPA Integrated Disclosure (TRID) rule, ensuring borrower protection by mandating disclosures within 3 business days of application, a 7-business-day wait between the initial Loan Estimate and closing, and another 3-day wait if significant changes (like APR) occur, giving borrowers time to review costs before committing to a loan.
The average age to pay off a mortgage in the U.S. is around 62, with many becoming mortgage-free in their early 60s, coinciding with or just after typical retirement age, though figures vary by source. While some financial experts suggest paying it off by 45 for aggressive investing, data shows a significant portion of homeowners, especially older ones (60+), are mortgage-free, but increasingly, older adults (60s, 70s, 80s) carry more mortgage debt than previous generations, according to Marketplace.
Some mortgages may only allow you to overpay a certain amount each year or may charge a fee for overpayments. It is also essential to assess your overall budget to gauge if you can afford lower liquid savings. Overpaying your mortgage could mean that you have less cash available for other expenses or emergencies.
Most lenders allow you to overpay by 10% of your outstanding mortgage balance each year without penalty. If you're on a Standard Variable Rate (SVR) or some trackers. You can usually overpay by as much as you want (do check if you're on a tracker).
In 2025, interest rates for mortgages are still high. If your mortgage has a higher interest rate than the savings rate, it might be a good idea to overpay your mortgage. This can give you returns that are better than many savings accounts.
If you have a lower interest rate on your mortgage than on your savings account (for example, your mortgage is 3% and your savings is 6%), it makes financial sense to save with the higher interest rate savings account rather than overpay your mortgage.
Yes, Dave Ramsey strongly advocates paying off your mortgage, calling it "Baby Step 6," because a debt-free house provides immense financial security, freedom, and a solid foundation for wealth, even arguing for it over investing at a low interest rate due to risk reduction and lifestyle benefits, though he stresses completing other steps like investing 15% first. He sees a paid-off home as a huge advantage for retirement, reducing stress and enabling career changes, and many millionaires follow this path.
To pay off a 30-year mortgage in 10 years, you must aggressively pay down the principal with strategies like increasing monthly payments significantly, making bi-weekly payments (effectively one extra payment yearly), applying lump sums from bonuses/refunds, and potentially refinancing to a shorter-term loan, all while ensuring extra funds go directly to the principal to save thousands in interest.
Suze Orman strongly advocates paying off your mortgage by retirement for financial freedom and peace of mind, but her advice on how varies by situation, often prioritizing a solid emergency fund and retirement savings first, especially if interest rates are low. While she pushes for paying down debt aggressively (even reducing retirement savings beyond the 401(k) match), she cautions against draining savings for low-interest mortgages if it leaves you vulnerable to job loss or emergencies, suggesting you should have a strong safety net before using savings to pay it off.
You could be charged for paying your mortgage off early or making a monthly payment, which goes over your agreed monthly limit. Many lenders will let you overpay up to 10% a year without penalties.
Tax considerations: You may be able to deduct home mortgage interest from your taxes. 2 However, if you pay off your mortgage, you won't be able to utilize this deduction, which could increase your taxable income. To learn more about the tax implications consider speaking with a tax advisor.
But if it's applied monthly, quarterly or even annually, you should aim to overpay just before. If your interest is not due to be calculated for a few months to a year, you could put your money into a high interest savings account before using it to overpay on your mortgage.
The main downsides of prepaying are tying up cash that could earn more elsewhere (like investments), potential prepayment penalties from lenders, reduced liquidity for emergencies, and missing out on the time value of money, especially if your loan interest rate is low; it also means losing potential tax deductions and can complicate financial aid.