State Tax Comparison Calculator

Description

The State Tax Comparison Calculator allows you to compare your estimated state income tax liability across multiple U.S. states simultaneously, making it an invaluable tool for anyone considering relocation, evaluating remote work options, or planning a move abroad (where understanding your state tax severance implications is critical). State income tax rates vary enormously across the United States — from 0% in states like Florida, Texas, and Nevada to over 13% for high earners in California. But income tax is only part of the picture: states also vary significantly in their treatment of retirement income, capital gains, deductions, credits, and the taxation of non-residents who earn income within their borders. This calculator goes beyond simple rate comparisons to estimate your actual state tax liability based on your specific income level, filing status, and income types. It accounts for each state's bracket structure, standard deduction or personal exemption amounts, treatment of specific income types (retirement distributions, Social Security benefits, capital gains), and any notable credits or surcharges. The calculator is particularly useful for three groups: (1) domestic taxpayers comparing states for potential relocation to reduce their tax burden; (2) remote workers who may have multi-state tax obligations based on where they work versus where their employer is located; and (3) expatriates who need to understand the implications of maintaining or severing residency in their former state. For expats, the calculator highlights which states are most and least aggressive about taxing former residents, helping you understand the importance of properly establishing non-residency before or upon your departure from the United States.

Input Fields

Formula Explanation

State income tax is calculated by applying each state's progressive tax bracket structure to your taxable income after the state-specific standard deduction or personal exemption. The comparison shows: (1) gross state tax for each selected state, (2) effective state tax rate, (3) marginal state tax rate, and (4) the annual tax savings or cost of one state versus another. States with no income tax (FL, TX, NV, WA, WY, SD, TN, AK, NH) return $0 for income tax.

Example Calculation

Frequently Asked Questions