About the Senior Bonus Deduction Calculator
This senior deduction calculator works out the “enhanced deduction for seniors” created by the One Big Beautiful Bill Act. For tax years 2025 through 2028, each taxpayer who is 65 or older by the end of the year can deduct an extra $6,000 — $12,000 for a married couple who are both 65 — on top of the existing additional standard deduction for age. It is claimed on Schedule 1-A and is available whether you itemize or take the standard deduction.
The deduction shrinks by 6% of modified adjusted gross income (MAGI) above $75,000, or $150,000 for joint filers, so it disappears completely at $175,000 single and $250,000 joint. Married couples must file jointly to claim it, and each qualifying person needs a valid Social Security number. For 2026 you qualify if you were born before January 2, 1962 (before January 2, 1961 for 2025).
Enter your MAGI, filing status and who is 65 or older. The calculator applies the Schedule 1-A worksheet, adds the regular age-based standard deduction ($2,050 single / $1,650 married per person in 2026), and estimates how much federal income tax the new deduction saves you. MAGI is AGI plus a few rarely used exclusions (foreign earned income, Puerto Rico and American Samoa income).
With the default inputs, the senior bonus deduction is $6,000.00. Change any value above to recalculate instantly.
How to use the senior bonus deduction calculator
- 1Pick the tax year and your filing status.
- 2Enter your modified adjusted gross income.
- 3Tick who on the return is 65 or older by December 31.
- 4Choose standard or itemized deductions so the tax saving is accurate.
- 5Read your senior deduction and the federal tax it saves.
Formula and method
This follows Part V of Schedule 1-A (Form 1040). Each qualifying person starts with $6,000. The excess of MAGI over the threshold T ($75,000, or $150,000 for married filing jointly) is multiplied by 6%, and that amount is subtracted from each person’s $6,000. Because a joint return applies the same reduction to both spouses, a couple loses $12 of deduction for every $100 of MAGI above $150,000.
The tax saving is the difference in 2026 (or 2025) federal income tax with and without the senior deduction, using the standard deduction plus the regular additional deduction for age, or your itemized deductions. MAGI is treated as equal to AGI for computing taxable income, and credits are ignored.
- N
- Number of qualifying people aged 65+ (1 or 2)
- T
- $75,000, or $150,000 if married filing jointly
- MAGI
- AGI plus excluded foreign / territory income
Worked examples
Single retiree with $60,000 of income
MAGI of $60,000 is under the $75,000 threshold, so the full $6,000 applies. With the $16,100 standard deduction and the $2,050 age add-on, total deductions are $24,150 and taxable income is $35,850. The $6,000 is all in the 12% bracket, saving $720.
Married couple, both 65, with $170,000 MAGI
MAGI is $20,000 over the $150,000 joint threshold; 6% of that is $1,200, so each spouse gets $4,800 and the couple deducts $9,600. Taxable income after the $32,200 standard deduction, $3,300 age add-on and $9,600 senior deduction is $124,900, and the deduction saves $2,112 at the 22% rate.
Single filer with $120,000 MAGI
MAGI is $45,000 above $75,000, and 6% of $45,000 is $2,700, leaving a $3,300 deduction. Taxable income is $120,000 − $16,100 − $2,050 − $3,300 = $98,550, so the deduction saves $3,300 × 22% = $726.
Frequently asked questions
Who qualifies for the $6,000 senior deduction?+
Anyone who is 65 or older by the last day of the tax year and has a valid Social Security number. For 2026 that means born before January 2, 1962. Married people must file jointly; if both spouses qualify the couple can deduct up to $12,000.
Do I have to itemize to get the senior deduction?+
No. The enhanced senior deduction is claimed on Schedule 1-A and reduces taxable income whether you take the standard deduction or itemize. It is in addition to the existing extra standard deduction for people 65 and older.
At what income does the senior deduction phase out?+
It falls by 6% of MAGI above $75,000 ($150,000 for joint filers). The deduction is gone entirely at $175,000 of MAGI for single filers and $250,000 for married couples filing jointly.
Does the senior deduction make Social Security tax-free?+
Not directly. It is a deduction from taxable income, not an exclusion of benefits, but for many retirees it is large enough that the taxable part of their Social Security ends up with little or no federal income tax.
How long does the senior bonus deduction last?+
It applies to tax years 2025, 2026, 2027 and 2028 and is scheduled to expire after 2028 unless Congress extends it. The $6,000 amount and the $75,000 / $150,000 thresholds are not indexed for inflation.
Tax results are estimates based on published rules and simplified assumptions. They are not tax advice — check official guidance or a tax professional for your situation.