Yesterday, we exposed how early stock market losses can sabotage your retirement withdrawals. But let’s talk about a question many near-retirees are quietly wrestling with: should you pay off your mortgage before you retire—or hold onto the debt and invest instead?

It’s not as simple as it seems. On one side, there’s the peace of mind that comes from being debt-free. No mortgage means fewer monthly bills, more flexibility, and one less thing hanging over your head.

But on the other hand, if you’ve got a low interest rate—say 3%—and you pull money from your investments earning 6% to pay off that mortgage, you could actually be costing yourself in the long run.

Let’s break it down.

Say you owe $150,000 on your mortgage, and it’s costing you 3.2% interest. If you pay that off early, you’re effectively earning a 3.2% “return” by avoiding those future payments. That’s not bad—but it’s also not inflation-beating growth.

If instead you invest that $150,000 in a balanced portfolio returning 5–7%, your money could grow faster than your debt. That spread—called arbitrage—is how the wealthy think. They borrow cheap and invest high.

But wait: that only works if the market performs—and if you have the stomach for volatility. Retirees pulling income from the same portfolio they’re gambling on to outperform a guaranteed mortgage payoff? That’s a risk most don’t calculate correctly.

Then there’s taxes. Mortgage interest used to be a major write-off, but for many retirees, it no longer is. Standard deductions are higher, and mortgage interest isn’t always enough to itemize. That removes one of the few financial perks of carrying debt in retirement.

And remember: paying off your mortgage also reduces your monthly income needs. That’s powerful. With fewer bills, you can live on less, delay withdrawals from your retirement accounts, and possibly pay less in taxes.

The real key is liquidity. If paying off your mortgage wipes out your cash cushion, it might not be worth it. You don’t want to be house-rich and cash-poor. Better to keep some money accessible for emergencies or income gaps.

One middle ground? Some retirees pay off most—but not all—of the mortgage, or continue making aggressive payments without emptying their accounts. That way they lower the burden without sacrificing liquidity or flexibility.

The elites? They rarely pay off homes early. Why? Because they can leverage real estate at low interest and invest the difference. But they also have teams of advisors, multiple income streams, and portfolios that can weather storms.

You? You have to balance peace of mind with financial efficiency.

There’s no universal answer—but running the numbers before retirement is critical. Too many wait until it’s too late, then scramble when cash flow gets tight.

Tomorrow, we’ll switch focus again and dive into something every retiree should understand: how Required Minimum Distributions (RMDs) can force you to take more from your accounts than you want—and how to plan around them.