OBBBA Calc

Guides

Deduction vs Tax Credit: What a Deduction Is Actually Worth to You

Why a $3,000 deduction is not $3,000 off your tax, how marginal rates decide the saving, and why this site asks for your rate instead of assuming one.

2026-10-18

OBBBA Deductions FAQ: Quick Answers Across All Four Changes

Short answers to the questions that do not belong to one deduction: years, AGI, refunds, state rules and how much a deduction saves.

2026-10-18

The New OBBBA Deductions, Explained in Plain English

All four new Schedule 1-A changes in one guide: overtime premium, tips, car loan interest and the 1099 thresholds, who each covers and where each number comes from.

2026-10-18

Schedule 1-A Guide: How to Claim the New Deductions, Part by Part

What each part of Schedule 1-A does, where each number comes from, and where the total lands on Form 1040.

2026-10-18