Compares the after-tax cost of your debt to the after-tax return on an investment, so you can see which one actually saves or earns you more.
The stated annual interest rate you're paying on the debt in question.
Whether you can deduct this interest on your taxes, which lowers its true cost.
The annual return you expect from investing instead of paying down debt, before taxes.
Table of Historic Rates of Return. Inflation 2.9%, U.S. Treasury Bills 3.3%, Long-term Government Bonds 5.0%, U.S. Large-Company Stocks 10.4%, and U.S. Small-Company Stocks 11.8%. Past performance is no guarantee of future results. Source: Ibbotson SBBI 1926-2024
Your marginal income tax rate, used to adjust both the debt cost and the investment return for taxes.
Table of Federal Income Brackets and Rates. Tax Rate For Single Filers For Married Individuals Filing Joint Returns For Heads of Households 10% $0 to $11,925 $0 to $23,850 $0 to $17,000 12% $11,925 to $48,475 $23,850 to $96,950 $17,000 to $64,850 22% $48,475 to $103,350 $96,950 to $206,700 $64,850 to $103,350 24% $103,350 to $197,300 $206,700 to $394,600 $103,350 to $197,300 32% $197,300 to $250,525 $394,600 to $501,050 $197,300 to $250,500 35% $250,525 to $626,350 $501,050 to $751,600 $250,500 to $626,350 37% $626,350 or more $751,600 or more $626,350 or more.
Whether the investment income you earn is subject to income tax.