Social Security Income Tax
Determine how much of your Social Security benefits may be subject to federal income tax based on your provisional income and filing status.
Results
What is it?
A calculator that estimates how much of your Social Security benefits may be taxable at the federal level. The IRS uses "provisional income" (other income + 50% of Social Security) and compares it to filing-status thresholds to determine whether 0%, 50%, or 85% of your benefits are subject to income tax.
How to use
Enter your total annual Social Security benefits, other annual income (pensions, wages, investments), and filing status. The calculator computes your provisional income and shows the percentage and dollar amount of benefits that are taxable.
Example scenario
Single filer with $30,000 Social Security and $40,000 other income: Provisional income = $40,000 + $15,000 = $55,000. This exceeds the $34,000 upper threshold, so 85% ($25,500) of benefits are taxable.
Pro tip
Consider Roth conversions before claiming Social Security. Roth withdrawals do not count as provisional income, so strategically converting Traditional IRA assets to Roth in lower-income years can reduce or eliminate the taxation of your future Social Security benefits.