A retired couple with $2.3 million in investments is weighing whether to pay off their remaining $300,000 mortgage. The loan carries a fixed interest rate of 2.9%, a figure well below current market rates. The couple currently withdraws about $100,000 annually from their portfolio to cover living expenses.
Financial advisors generally point to the math of low-rate debt. At 2.9%, the mortgage costs less than the historical average return of a balanced investment portfolio. Selling investments to eliminate the loan would forfeit potential growth, especially in a diversified account.
Tax implications also matter. Withdrawing a lump sum from tax-deferred accounts, such as traditional IRAs or 401(k)s, could push the couple into a higher tax bracket for that year. This may trigger higher Medicare premiums, known as IRMAA, two years down the line.
Liquidity is another consideration. Keeping the mortgage preserves cash for unexpected expenses or large medical bills. Paying off the house reduces monthly obligations but ties up capital that may be harder to access without selling assets later.
Behavioral factors should not be ignored. Some retirees prefer the psychological comfort of owning their home outright. That peace of mind can outweigh the financial advantage of keeping a low-interest loan, especially for those who value simplicity over optimization.
A middle path exists. The couple could direct a portion of their annual withdrawals toward extra mortgage payments. This reduces the principal over time without a single large sale of assets, smoothing the tax impact across several years.
The decision ultimately depends on their risk tolerance and spending flexibility. If their portfolio can weather market downturns while maintaining the $100,000 withdrawal, keeping the mortgage may serve them well. If stability is the priority, paying it off offers certainty at a measurable cost.
Advisors suggest running a detailed projection that includes taxes, healthcare, and expected portfolio returns. Comparing the couple’s effective mortgage rate after any tax deductions against projected investment gains provides a clearer picture. No single answer fits every retiree, but the numbers often favor holding the low-rate loan.
