How Much Social Security Is Taxed in 2026 Explained for Retirees — National Tax Reports

National Tax Reports has published a new guide explaining how much Social Security is taxed in 2026, helping retirees understand when benefits may become taxable and how federal income thresholds apply during the 2026 tax filing season. The guide outlines the IRS rules used to determine whether Social Security benefits are subject to taxation and how much of those benefits may be included in taxable income.

Social Security benefits are not automatically tax-free. The IRS uses a formula known as combined income to determine whether benefits are taxable. Combined income includes adjusted gross income, nontaxable interest, and half of a taxpayer’s Social Security benefits.

For many retirees, whether benefits are taxed depends on total income from other sources such as pensions, retirement accounts, or part-time work.

Example: A retiree receiving $25,000 in Social Security benefits and $20,000 from a pension may have a combined income high enough for a portion of benefits to become taxable.

The IRS has established specific income thresholds that determine how much of Social Security benefits may be taxed. For single filers, benefits generally become taxable when combined income exceeds $25,000, while married couples filing jointly may see taxation begin at $32,000.

Example: A married couple with a combined income above $32,000 may have up to 50 percent of their Social Security benefits included in taxable income.

For higher-income retirees, the taxable portion can increase further. If combined income exceeds $34,000 for single filers or $44,000 for married couples filing jointly, up to 85 percent of Social Security benefits may be subject to federal income tax.

Example: A couple receiving $30,000 in Social Security benefits and additional retirement income that raises their combined income above $44,000 may have a significant portion of their benefits taxed.

It is important to note that these thresholds are not adjusted for inflation, which means more retirees may become subject to Social Security taxation over time as incomes rise.

Example: A retiree whose income increases slightly due to required minimum distributions or investment income may cross a threshold and see a higher percentage of benefits taxed.

Financial planners often recommend reviewing total income sources when planning for retirement. Managing withdrawals from retirement accounts or timing additional income can help reduce the likelihood of crossing income thresholds that trigger taxation.

National Tax Reports published the guide to help taxpayers better understand how Social Security benefits are taxed and how income thresholds affect retirement income. By reviewing these rules before filing, retirees may be able to estimate their tax liability more accurately and plan for the 2026 tax season.