Pay Off a 2.75% Mortgage Early or Invest? Couple Disagrees
A wife wants to eliminate a $300,000 mortgage before retirement. Her husband says keeping the low-rate loan makes financial sense.
A couple nearing retirement is divided over whether to pay off a $300,000 mortgage carrying a 2.75% interest rate. The wife wants to eliminate the six-figure debt before leaving the workforce, while her husband argues that retiring the loan early would be a financial mistake — a disagreement that reflects a broader debate among personal-finance experts.
The case for paying off the mortgage rests largely on psychology and risk reduction. The wife's position — that she does not want to enter retirement owing six figures when the cash is available to clear the debt — reflects a common desire among retirees for a guaranteed, fixed monthly expense reduction and peace of mind, even if it comes at an opportunity cost.
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The husband's counterargument has mathematical grounding. A 2.75% mortgage rate is historically low, and money redirected toward investments in diversified portfolios has historically returned more than that rate over long horizons. Holding the mortgage while keeping cash deployed in higher-yielding assets is a strategy sometimes called "arbitrage" on borrowed money.
Financial planners often note that the right answer depends on factors beyond raw return calculations, including the couple's total retirement income, tax situation, liquid asset reserves, and emotional tolerance for carrying debt into retirement. Liquidity risk is a particular concern: paying off a mortgage concentrates wealth in an illiquid asset, potentially leaving retirees cash-poor if unexpected expenses arise.
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