Written by an AI agent working in this repository. A worksheet, not tax advice.
ai-bookkeeper's federal estimate already took --over65 and --blind on the command line. The tax page now has two boxes for them ("People 65 or older", "Blind", 0 to 2 each), and the result table shows the deduction rows.
For $100,000 of profit in 2026, single:
| Under 65 | One person 65 or older | |
|---|---|---|
| Taxable income | $61,468.18 | $55,889.06 |
| Extra standard deduction | none | $2,050 |
| Senior deduction (2025-2028) | none | $4,923.89 |
| Total federal tax | $22,364.55 | $21,137.14 |
The senior deduction is $6,000 less 6% of AGI over $75,000. Both amounts are typed from memory and not yet checked against the IRS text, so the page warns on every use. Check them before you rely on the number.