Should you pay off your mortgage early?
Paying extra on a low-rate mortgage is a guaranteed, tax-free return equal to your interest rate. Investing that money instead has a higher expected return but no guarantee. Which wins depends on the numbers and on how much you value certainty.
Last reviewed August 2026
The core trade-off
Every dollar of extra principal earns you a return equal to your mortgage rate, risk-free. Pay down a 6.5% loan and you have effectively made 6.5% with no volatility. Put the same dollar in a diversified stock portfolio and you might average 7–8% over decades — but with years of losses along the way and no certainty.
When your mortgage rate is well below expected market returns — a 3% pandemic-era loan, say — the expected-value case for investing is strong. When your rate is 6–7%, the gap narrows and the guaranteed nature of the payoff looks more attractive.
What the math leaves out
- Liquidity: money sent to the mortgage is locked in the house. You cannot spend home equity in an emergency without a sale, a refinance, or a HELOC.
- Order of operations: high-interest debt and an employer 401(k) match both beat mortgage prepayment. Handle those first.
- Taxes: if you itemize, the mortgage interest deduction slightly lowers your effective rate. Most households now take the standard deduction, so this matters less than it used to.
- Peace of mind: a paid-off house lowers your required monthly spending for life. That security has real value that no spreadsheet captures.
Terms in this guide
- Principal — The amount of money actually borrowed and still owed, separate from the interest charged to borrow it. Each mortgage payment reduces the principal by a little more than the last.
- Home equity — The part of the home's value you actually own: current market value minus every loan secured by the property. It grows as you pay down principal and as the home appreciates.
- Mortgage recast — Re-amortizing an existing loan after a large lump-sum principal payment, so the monthly payment drops while the rate and payoff date stay the same. It is much cheaper than a refinance but not all loans or servicers allow it.
- Prepayment penalty — A fee some loans charge if you pay off the balance early, whether by selling, refinancing, or making large extra payments. Federally backed and most conventional mortgages made today do not carry one, but always confirm.