2025 401k Limits Married Filing Jointly Over 55. To receive the credit, your annual income in 2025 must fall below $79,000 if you are married filing jointly, $57,375 if you file as a head of household, or $39,500 if you are a single. Married couples filing jointly have a standard deduction of $30,000 ($800 more than in 2024).

If you’re married and filing jointly, the income limit will be $79,000 in 2025, which is up from $76,500 in 2024. A married couple in which both spouses are over 50 and with a 401(k) account at work could potentially defer paying income tax on as much as $61,000 in a single year.