Social Security Benefits Tax Calculator
Calculate how much of your Social Security benefits are taxable based on combined income.
Taxable Portion
85%
Taxable Amount
$17,000.00
Est. Tax on SS
$3,740.00
Taxation Details
| Other Income (AGI) | $50,000.00 |
| Social Security Benefits | $20,000.00 |
| 50% of SS Benefits | $10,000.00 |
| Combined Income | $60,000.00 |
| Taxable Portion of SS | 85% |
| Taxable SS Amount | $17,000.00 |
| Estimated Marginal Tax Rate | 22% |
| Estimated Federal Tax on SS | $3,740.00 |
Thresholds (Single)
| Combined income below $25,000 | 0% taxable |
| Combined income $25,000 - $34,000 | 50% taxable |
| Combined income above $34,000 | 85% taxable |
Use the Social Security Benefits Tax Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How It Works
Determine the taxable portion of your Social Security benefits with this calculator. Understanding this is crucial for accurate tax planning, as up to 85% of your benefits could be subject to federal income tax, impacting your overall tax liability for 2026.
This calculator uses your Modified Adjusted Gross Income (MAGI), which is your Adjusted Gross Income (AGI) plus tax-exempt interest and 50% of your Social Security benefits. Your benefits become taxable if your MAGI exceeds specific thresholds ($32,000 for single filers, $44,000 for married filing jointly in 2026).
A common mistake is overlooking tax-exempt interest when calculating MAGI, which can artificially lower your estimated taxable benefits. Remember that state taxes on Social Security benefits also vary; this calculator focuses solely on federal taxation.
Example: Single Filer, $25,000 Social Security, $20,000 Other Income
- 1 Input your total annual Social Security benefits, your other adjusted gross income (AGI), and any tax-exempt interest income. For example: $25,000 Social Security, $20,000 AGI, $0 tax-exempt interest.
- 2 The calculator will first determine your MAGI. In this example, $20,000 (AGI) + $0 (tax-exempt interest) + $12,500 (50% of Social Security) = $32,500. Since this exceeds the $25,000 threshold for single filers but not the $34,000 threshold, 50% of your benefits are taxable.
- 3 Based on the calculation, approximately $12,500 of your Social Security benefits would be subject to federal income tax.
- 4 This result helps you anticipate your tax obligations. You can choose to have federal income tax withheld from your Social Security benefits or make estimated tax payments throughout the year to avoid a large tax bill at year-end.
Source: IRS — Forms, Instructions & Publications · Last updated: April 2026
Frequently Asked Questions
How do I know if my Social Security benefits are taxable?
Can I avoid paying taxes on Social Security?
What is the maximum monthly Social Security payment at age 70 in 2026?
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