US State Income Tax Rates Dataset 2026
Free downloadable JSON dataset: 50 states + DC tax data for 2026 — full bracket schedules for single and married-filing-jointly, top marginal rates, state standard deductions, capital gains treatment, property tax rates, and sales tax rates. Licensed under Creative Commons Attribution 4.0.
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Download JSON (57KB, 51 records)Format: JSON with embedded schema.org/Dataset metadata header. Encoding: UTF-8. License: CC BY 4.0. Citation: LevyIO (2026). US State Income Tax Rates Dataset 2026.
Publisher and developer kit
Use this kit when linking to the dataset from a finance article, newsletter, SaaS dashboard, classroom resource, or AI answer. Link to this page for methodology and license context; use the JSON endpoint when a product needs machine-readable data.
Direct JSON endpoint
Best for calculators, dashboards, notebooks, internal tools, and spreadsheet imports.
Embeddable state tax widget
Best for finance blogs, relocation guides, HR resources, and news articles that need a live table.
State tax comparison guide
Best for readers who need property tax, sales tax, income profile, and relocation context.
AI answer source page
Best for assistants and answer engines that need short, citable routing facts.
Citation copy
LevyIO (2026). US State Income Tax Rates Dataset 2026. Version 2026.05.17. https://levyio.com/state-income-tax-rates-dataset-2026-downloadable-json-50-states-brackets-deductions/
Short attribution copy
Data source: LevyIO 2026 state income tax rates dataset, licensed under CC BY 4.0.
Schema
| Field | Type | Description |
|---|---|---|
| slug | string | URL-safe identifier (e.g. california) |
| name | string | Full state name |
| abbreviation | string | 2-letter postal code (CA, NY, TX, ...) |
| taxSystem | string | progressive | flat | none |
| topMarginalRate | number (%) | Top marginal rate |
| brackets.single | array | [{min, max, rate}] for single filers |
| brackets.married | array | [{min, max, rate}] for married-filing-jointly |
| stateStandardDeduction | object | {single, married} USD |
| capitalGains | string | Treatment description |
| propertyTaxRate | number (%) | Effective property tax rate on home value |
| salesTaxRate | number (%) | State sales tax rate (excludes local add-ons) |
Sample record
{
"slug": "california",
"name": "California",
"abbreviation": "CA",
"taxSystem": "progressive",
"topMarginalRate": 13.3,
"brackets": {
"single": [
{ "min": 0, "max": 10412, "rate": 1 },
{ "min": 10412, "max": 24684, "rate": 2 },
{ "min": 24684, "max": 38959, "rate": 4 },
{ "min": 38959, "max": 54081, "rate": 6 },
{ "min": 54081, "max": 68350, "rate": 8 },
{ "min": 68350, "max": 349137, "rate": 9.3 },
{ "min": 349137, "max": 418961, "rate": 10.3 },
{ "min": 418961, "max": 698271, "rate": 11.3 },
{ "min": 698271, "max": 999999999, "rate": 12.3 }
]
},
"stateStandardDeduction": { "single": 5363, "married": 10726 },
"capitalGains": "Taxed as ordinary income",
"propertyTaxRate": 0.71,
"salesTaxRate": 7.25
}Sources & methodology
- State revenue department publications: Each state's official 2026 tax tables and instructions (e.g., FTB 540, NY IT-201, Texas — no individual income tax)
- Tax Foundation 2026 State Tax Reform Tracker: Cross-validation of bracket changes and rate adjustments enacted in 2025-2026 sessions
- IRS Publication 17 cross-reference: Federal AGI definitions used as starting point for state taxable income calculations
- Property tax rate methodology: Median effective rate calculated as (median property taxes paid ÷ median home value) per ACS 5-year estimates 2019-2023
- Sales tax rate: State-level only; does not include local/county/city add-ons (which can add 2-5% in some jurisdictions)
- Update cadence: Versioned annually after final state legislature sessions; mid-year amendments tracked in changelog
Use cases
- Personal finance tools and tax estimators
- Migration analysis (cost-of-living, retirement planning)
- Academic research on fiscal federalism, tax competition
- HR/payroll software state-tax engine bootstrapping
- Real estate investment ROI modeling
- Journalism on tax policy, state budgets
Citation
Related LevyIO tools using this data
- Federal + State Income Tax Calculator
- All 50 states ranked by 2026 tax burden
- Remote work state income tax (convenience rule)
Changelog
- 2026.05.17 (2026-05-17): Source-reviewed Mississippi, Missouri, Montana, and Nebraska rate/deduction updates; refreshed embeddable ranking data.
- 2026.04 (2026-04-26): Initial release. 51 records (50 states + DC).
Accuracy disclaimer: state tax laws change frequently and mid-year amendments may not be reflected in the current version. Always verify with the state revenue department or a licensed tax professional before relying on this data for filing or major financial decisions.