How much can I save by using a tax-free state?

On a $1,000 purchase, a 7%–11% sales tax difference versus a no-sales-tax state means $70–$110 saved per transaction. For frequent online shopping, the annual savings add up quickly.

Can I really use a different state's address for online shopping?

For out-of-state online orders, a valid billing or shipping address in a no-sales-tax state can legally avoid sales tax on eligible items. Use our Tax-Free State Address Generator for verified addresses.

Does the comparator include local taxes?

Yes. It uses combined state and local rates so the comparison reflects what you actually pay at checkout, not just the statewide rate.

Tax Savings Comparator 2026

Compare sales tax between any two US states on a purchase and see your potential savings instantly.

How to Use the Tax Savings Comparator

Enter the purchase amount.
Pick two states to compare.
Review the tax difference and total savings.
Generate a tax-free address to capture the savings.

Formula

savings = price × (rateA - rateB)
totalA  = price × (1 + rateA)
totalB  = price × (1 + rateB)

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In-Depth Guide

Worked Example

You plan to spend $1,000 on furniture and can buy it in either of two neighboring states. State A has a combined sales tax of 7%, State B has 11%. In State A the tax is $70; in State B it is $110. Buying in State A saves $40 on this one purchase. At a larger scale, the gap between a 7% and an 11% combined rate on $1,000 of spending is $40, and the difference between a 7% and an 11.5% rate is $45, so each $1,000 of taxable purchases saves $40 to $45 by crossing the border. The calculator takes the two combined rates and your planned spend, then shows the per-transaction and total savings so you can decide whether the trip is worth it.

Common Mistakes to Avoid

Shoppers often compare only state rates and miss local add-ons that can be several points, which is where the real savings usually hide. Another error is assuming every item is taxable; groceries, prescription drugs, and sometimes clothing are exempt, so the saving applies only to taxable goods. People also forget use tax: if you buy out of state but owe use tax at home, the apparent saving may be owed anyway, though enforcement on small purchases is rare. Finally, do not let a tiny rate gap justify a long, costly trip; the calculator shows the dollar saving so you can weigh it against gas and time.

When to Consult a Tax Professional

For personal shopping the calculator is enough, but businesses moving inventory or making large out-of-state purchases should consult an advisor about nexus and use tax. Resellers with exemption certificates need correct paperwork, and remote sellers must track where they owe tax after the Wayfair ruling. If you are a frequent cross-border buyer, an accountant can explain your use-tax filing duties and whether registering in another state makes sense. The guide here is for estimating consumer savings, not for managing seller compliance.

Sources & Further Reading

Combined state and local rates are listed by the Federation of Tax Administrators at TaxAdmin.org. The IRS explains individual use tax at IRS.gov. For the economic backdrop of local tax differences, see the Census Bureau at Census.gov. The calculator uses these rate sources.

Disclaimer: SaveTaxUS calculators provide estimates only and do not constitute official tax advice. All calculations run locally in your browser — we never upload your income, property, or financial data.

Data source: Rates are based on publicly available 2026 IRS federal brackets and state tax publications. For formal filing, consult a licensed CPA. Last updated: July 2026.