India Reverse Tax Calculator (2026) - GST & Sales Tax

The IRS increased the 2026 standard deduction to $16,100 for single filers and $32,200 for married filing jointly — up $350 and $700 respectively from 2025's already-elevated OBBBA amounts. Nearly 90% of all filers claim it automatically. Seniors 65+ get an additional $2,050 (single) or $1,650 per qualifying spouse (MFJ). Dependents face a reduced limit. The OBBBA SALT cap for 2026 is $40,400 — meaning the itemizing threshold has shifted for many filers. This guide shows every 2026 amount, the tax savings at each bracket, when itemizing beats the standard deduction, and the three planning strategies (deduction bunching, DAFs, medical timing) that make the most difference.

Unlike the federal system, state income tax isn't one set of rules — it's 41 different systems, each with its own rates, brackets, deductions, and residency rules. Nine states charge nothing at all, 15 use a single flat rate, and the rest use graduated brackets similar to (but never identical to) the federal structure. Add remote work, multi-state commuting, reciprocity agreements, and the "convenience of the employer" rule, and most people have no idea which state actually taxes their income — or how much. This guide explains the entire system from the ground up for 2026.

Nine states cut individual income tax rates effective January 1, 2026 — the largest wave of simultaneous state tax cuts in recent memory. Ohio converted to a flat 2.75% rate, completing its multi-year transition. North Carolina hit its long-targeted 3.99% flat rate. Kentucky dropped from 4.0% to 3.5%. Nebraska, Indiana, Mississippi, Georgia, Montana, and Oklahoma all cut rates too. Meanwhile California, New York, New Jersey, and Minnesota remain unchanged at the top of the chart. This guide ranks every mover, explains the mechanics behind each cut, and shows exactly what it means for a $120,000 earner choosing where to live.