Indiana Sales Tax Calculator (2026) — Add or Reverse Tax
Indiana's combined sales tax rate is 7.00% (7.00% state). Use the calculator below to add Indiana sales tax to a price, or reverse a tax-included total to find the pre-tax price and exact tax amount.
How to use this calculator:
- Adding tax — enter a pre-tax price, pick "Add tax to price," and the calculator applies the Indiana rate to show the tax amount and final total.
- Reversing (extracting) tax — enter a total that already includes tax, pick "Extract tax from total," and the calculator divides by 1 + the rate to isolate the pre-tax price and the exact tax paid.
- Pick the rate that matches your situation: the average combined rate is a good statewide estimate, but the state-only or maximum-local rate is more precise if you know the exact city or county.
Understanding Indiana Sales Tax
Indiana's state sales tax rate is 7.00%, with no additional local sales tax in most of the state.
Indiana also levies a state income tax, which shapes how much the state relies on sales tax revenue relative to other funding sources.
Groceries
Exempt from Indiana state sales tax.
Largest city
Indianapolis
State income tax
Yes
Why Reverse Sales Tax Calculation Matters
Receipts, invoices, and marketplace payouts usually show only the tax-included total — not the pre-tax price. Reversing the calculation matters for bookkeeping (separating revenue from tax collected), expense reports (reimbursing only the pre-tax cost), and price comparisons (checking what an item actually costs before Indiana's tax is applied). Because dividing by (1 + rate) is not the same as simply subtracting the rate from the total, doing this by hand is a common source of errors — the calculator above handles it exactly.
Indiana Taxability at a Glance
🛒 Groceries
Exempt
👕 Clothing
Taxable
💊 Prescription drugs
Exempt
History & Rate Breakdown
Indiana's retail sales tax was enacted in 1963 at 2% and has been raised in stages since, reaching its current 7% rate. Throughout that history, Indiana has kept the tax as a single statewide rate with no county or city add-ons — a deliberate simplicity choice unusual among larger states.
There's no breakdown to speak of: Indiana's 7% rate is entirely state-level and applies identically everywhere in the state, from downtown Indianapolis to the smallest rural township. Indiana is one of the few states where the sticker-price math is the same no matter where the sale happens.
Where the Money Goes
Because there is no local sales tax anywhere in Indiana, all sales tax revenue flows to the state government, which then funds local services through direct state appropriations and revenue-sharing formulas rather than letting cities and counties set their own rates.
Business Use Case: Registering & Collecting Indiana Sales Tax
A retailer crossing Indiana's $100,000 economic nexus threshold has one of the simplest compliance jobs in the country: register with the Indiana Department of Revenue, charge a flat 7% on every Indiana sale, and file — with no need to look up a different rate for each customer's city or county.
Sales Tax Terms Glossary
Combined rate
The state sales tax rate plus any applicable local (city, county, or special district) rates — the actual rate charged at checkout in a given location.
Reverse sales tax
The process of working backward from a tax-included total to find the pre-tax price and the exact tax amount, using total ÷ (1 + rate) = pre-tax price.
Economic nexus
A sales threshold (in dollars, transaction count, or both) that obligates an out-of-state seller to collect and remit sales tax even without a physical presence in the state.
Marketplace facilitator
A platform (e.g. Amazon, Etsy, eBay) that collects and remits sales tax on behalf of third-party sellers under most states’ marketplace facilitator laws.
Real-World Example
A $500.00 purchase in Indiana at the average combined rate of 7.00%:
- Tax amount: $500.00 × 7.00% = $35.00
- Total price: $500.00 + $35.00 = $535.00
Indiana Sales Tax Compliance for Sellers
Remote and online sellers establish economic nexus in Indiana once they exceed $100,000.00 in annual sales (no separate transaction-count test). Once nexus is established, a seller must register with the state, collect Indiana sales tax at checkout, and file returns on the state's required schedule. Marketplace facilitators (Amazon, Etsy, eBay, Walmart) generally collect and remit on behalf of third-party sellers automatically.
Frequently Asked Questions — Indiana Sales Tax
What is the sales tax rate in Indiana?▾
Does Indiana tax groceries?▾
Does Indiana have a state income tax?▾
When do online sellers need to collect Indiana sales tax?▾
How do I calculate Indiana sales tax on a purchase?▾
How do I reverse Indiana sales tax to find the price before tax?▾
What is the formula to back out sales tax from a receipt in Indiana?▾
References & Sources
Rates last verified January 2026. Indiana sales tax rates and thresholds can change — always confirm current figures with the Indiana Department of Revenue before filing or invoicing. This tool is for estimation and educational purposes only and is not tax, legal, or accounting advice.
Jordan Hayes
Verified AuthorLead Content Editor & Personal Finance Specialist
Jordan Hayes is a personal finance content strategist with 9+ years building educational finance and health resources. He has written and fact-checked over 200 personal finance guides covering mortgage amortization, retirement planning, tax strategy, and budgeting. His work applies IRS publications, Federal Reserve data, and peer-reviewed research to make complex calculations accessible.