Educational information, not individual financial advice.
Key Takeaways
The 2025 One Big Beautiful Bill (OBBB) added a new above-the-line deduction for filers age 65 or older. It's worth $6,000 per qualifying filer (so $12,000 on a MFJ return where both spouses are 65+), reduces AGI directly, and is independent of whether you itemize or take the standard deduction.
It's also temporary. The current law has it sunsetting after the 2029 tax year — Congress would have to act to extend it.
The phase-out math: deduction reduces by $1 for every $20 of MAGI over the start threshold (single), or $1 for every $25 (MFJ). Worked single example:
Three reasons the senior bonus is a meaningful planning consideration despite being temporary:
1. Stacks with the existing senior addition to standard deduction. Pre-OBBB, filers 65+ already got an extra ~$1,950 (single) / $1,550 (each MFJ) added to their standard deduction. The $6,000 senior bonus is on top of that. Combined: a 65+ single filer can have ~$23,000 of pre-AGI deductions (standard $15k + senior add ~$2k + senior bonus $6k).
2. Below the phase-out, it's a 22-24% tax saving. At a typical retiree marginal rate, $6,000 deducted is worth ~$1,400/yr. For two qualifying MFJ spouses, that's ~$2,800/yr.
3. Sunsets in 2030. If you turn 65 in 2027, you get four years of the bonus before it disappears. Plan accordingly — Roth conversions at age 60–64 (before the bonus is available) may be more efficient than waiting until 65 (when bonus + lower MAGI threshold makes ordinary income more punishing).
Bracket-fill Roth conversions. Below the phase-out, the senior bonus deduction reduces AGI on top of any other AGI-reducers. A Roth conversion at age 65+ effectively gets a $6,000 cushion before the phase-out kicks in. Above the phase-out, the conversion fully exposes you to higher MAGI without any senior-bonus offset.
Capital gains realization timing. Same logic — selling appreciated stock at age 65+ pre-phase-out is more efficient because the AGI lift from the gain is partially absorbed by the senior bonus.
MFJ couples with one 65+ spouse. Only the 65+ spouse gets the bonus ($6k, not $12k). When both turn 65, the household deduction doubles. If you can defer income from the year only-one-spouse is 65 to the year both are, the additional $6,000 is worth ~$1,400 in tax.
Watch the phase-out carefully. The phase-out is steep — over a $50k MAGI range single ($75k → $175k). For filers near the start of the phase-out, every dollar of MAGI both adds tax (at marginal rate) AND removes deduction (at marginal rate ÷ 20 ÷ marginal rate = 5% effective extra rate). The cumulative effect can be ~30% marginal tax on dollars in the phase-out band — a real consideration for IRA distributions and Roth conversions in that window.
The /taxes page federal breakdown includes a "Senior bonus deduction" line. The engine applies the right amount based on your age + spouse age + MAGI in each calendar year. Past 2029, the engine drops the deduction automatically (current law sunset). You can preview the post-sunset world by switching the scenario picker to alt_2030_default.
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