The math depends on your interest rate, expected returns, and whether the debt is tax-deductible. Run both scenarios and see the 10-year difference.
Debt vs. Invest Calculator
Should you pay off debt faster or invest the extra money?
The answer depends on your interest rate, your expected investment return, and whether the debt is tax-deductible. This calculator runs both scenarios side by side.
Current Debt Balance
$
Debt Interest Rate
%
Current Minimum Monthly Payment
$
Extra Monthly Amount Available
The amount you could put toward debt OR invest
$
Expected Investment Return
Is the interest tax-deductible?
Mortgage interest, student loans — check with your CPA
Debt Type
Federal Tax Bracket
Pay Off Debt First
0 mo
Months to payoff
$0
Net Wealth at Year 10
Invest Extra, Pay Minimums
0 mo
Months to payoff
$0
Net Wealth at Year 10
Year-by-Year Comparison
Year
Pay Off: Remaining Debt
Pay Off: Portfolio
Invest: Remaining Debt
Invest: Portfolio
What this doesn't capture: Your emergency fund status, whether the investment is in a tax-advantaged account (401k/IRA contributions have their own math), psychological value of being debt-free, and whether the extra cash flow post-payoff would actually be invested. These factors matter — this tool gives you the mathematical starting point.
The right answer depends on your full picture.Debt payoff vs. investing is rarely a pure math problem — it involves your tax situation, retirement timeline, and risk tolerance.