Frequently Asked Questions

Our calculators use official state-published tax data updated for 2026. Results are estimates and should be accurate within typical ranges. However, individual tax situations vary, and our tools cannot account for every deduction, credit, or special circumstance. Always verify with a tax professional for critical decisions.

Tax rate data is updated within 24 hours of any official rate change announcement by state authorities. We monitor state tax agency publications year-round and publish updates immediately.

Our calculators focus on state taxes only. Federal income tax is calculated separately by the IRS using federal brackets. We provide a link to federal tax resources alongside state results.

All calculators default to the current tax year (2026). When 2027 rates become available, we update our systems accordingly.

No. TaxRatesHub is an informational tool for estimates and education. We do not file taxes, generate tax forms, or replace a licensed tax professional or tax filing software.

The free plan includes 5 calculations per day, access to income tax and sales tax calculators for all 50 states, and basic state tax data. Ads are displayed.

When you sign up for Pro, you get 7 days of full access at no charge. Cancel before the trial ends and you won't be charged. After the trial, your card is charged the monthly or annual rate.

Yes. You can cancel from your dashboard at any time. Your Pro access continues until the end of your current billing period. No partial refunds for early cancellation.

We offer a 30-day money-back guarantee on all paid plans. Contact support within 30 days of purchase for a full refund, no questions asked.

Yes. Annual billing gives you approximately 2 months free compared to monthly billing. The Pro plan is $79/year instead of $119.88/year.

We store your calculation inputs (income, purchase amounts, etc.) temporarily to power your history feature. We do not share this data. Payment card data is processed entirely by Stripe and never touches our servers.

Pro and Business plan users can export calculations to PDF and CSV. Free users can copy individual results to clipboard.

Yes, the REST API is available on the Business plan with 10,000 calls per month. Visit our API documentation for details.

We support the latest two versions of Chrome, Firefox, Safari, and Edge. Internet Explorer is not supported.