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State Guide · Indiana

Indiana sales tax: what growing businesses need to know

A flat 7% rate with zero local taxes makes the math simple. What's not simple: SaaS is deeply taxable here, and there's zero grace period once you cross the nexus threshold.

Updated for 2026 ~7 min read Reviewed by TSTP sales tax advisors
01 Overview

Zero local taxes, zero grace period

At 7%, Indiana has one of the highest flat sales tax rates in the country. Most states bury you in local tax rates — Indiana doesn't. But what it lacks in local complexity, it makes up for with an aggressive stance on digital products and SaaS.

The quick version: $100,000 triggers nexus — with zero grace period. SaaS is fully taxable at 7%.

02 At-a-glance

Indiana sales tax rate table

FieldValue
State base rate7.0%
Average combined rate7.0%
Local add-on range0% — no local taxes
Maximum combined rate7.0%
Rates vary by county/cityNo
SourcingDestination-based
03 Economic nexus

$100,000 — and no cushion once you cross it

Indiana expects you to register and collect the moment you exceed $100,000 in gross sales. The state eliminated its 200-transaction rule in early 2024 — now only revenue matters.

  • Marketplace sales count toward your $100,000, though the marketplace remits the tax for those.
  • Hit $100,000 on a Tuesday? You need to register and start collecting on Wednesday.
Bottom line: If your Indiana sales hit $100,000 last year or are on track to hit it this year, register right now.

Nexus checker

Enter your Indiana gross sales. Revenue-only, no transaction count.

Revenue toward $100,0000%
Enter your revenue to see whether you've likely crossed Indiana's economic nexus threshold.

Directional estimate only — not tax advice.

04 Digital & SaaS

SaaS is deeply taxable — no exceptions

Indiana does not care if you sell to enterprise businesses or everyday consumers. If you deliver software electronically, you collect tax.

Product / serviceTax treatment
SaaS (B2B and B2C)Taxable at 7%
Downloaded software (permanent license)Taxable at 7%
Streaming / subscription softwareTaxable at 7%
Digital goods (e-books, music, video)Taxable at 7%
Cloud storage / hostingTaxable at 7%
Custom software / data analysis (services)Generally exempt

The distinction: selling access to prewritten software (downloaded, streamed, or subscription) is taxable. Building custom software from scratch for one client is usually a service and escapes tax.

05 Taxability

Product taxability in Indiana

Product categoryTax treatment
Groceries & unprepared foodExempt
Prepared food & restaurant mealsTaxable at 7%
Candy & soft drinksTaxable at 7%
Clothing & apparelTaxable at 7% — no exemption
Prescription drugsExempt
Manufacturing machinery & equipmentExempt
Lawn care / pest control application (2026)Nontaxable

Indiana taxes all clothing and footwear — no exemption like many other states offer.

Quick sales tax calculator

Item price$0.00
Sales tax (7%)$0.00
Total$0.00
06 Tax holidays

Indiana does not offer sales tax holidays

The flat 7% rate applies year-round to all taxable goods and services.

07 Filing

Filing and registration

Register through the INBiz portal. Free, 1 to 2 business days.

FrequencyAssigned when…
MonthlyAverage liability $1,000+/month
QuarterlyUnder $1,000/month
AnnualTypically under $100/month

Returns due the 20th of the month following the reporting period.

  • Late filing/payment: 10% each
  • Interest: ~7% annually

No vendor discount.

Not sure which of these apply to you?

We map your Indiana exposure — the immediate registration rule, digital goods classification — and tell you exactly what to do next.

Book a free consultation
08 Home rule & SST

Not home-rule — a full SST member

Indiana is not a home-rule state — every taxable sale gets the same 7% rate, no local registrations needed. Indiana is a full SST member, letting you use certified service providers at no cost.

09 VDA program

Voluntary Disclosure Agreement (VDA)

Indiana offers a formal VDA program directly or through the MTC. Lookback typically 3 years (vs. 4-year standard). Penalties waived; interest owed. Process takes 60-90 days.

10 Audit risk

Audit risk in Indiana

Indiana takes enforcement seriously, especially around software. Common triggers: high exempt sales without documentation, treating SaaS as nontaxable, late registration after crossing $100,000. Statute of limitations: 3 years standard; unlimited for fraud or non-filers.

11 Quirks

Recent changes & quirky rules

No transaction threshold

Eliminated in early 2024 — now only the $100,000 revenue mark matters.

Lawn care clarified nontaxable (2026)

Home exterior application services like fertilizer and pest control no longer collect sales tax on labor.

12 Exemptions

Exemptions & resale certificates

Indiana accepts Form ST-105 or the SST Uniform Exemption Certificate. Blanket, don't technically expire (update every few years). Common exemptions: resale, manufacturing (direct-use production), agriculture, government.

13 Next move

Your next step: get clear on Indiana compliance

  • Past $100,000? You're legally required to collect right now.
  • Selling software or digital products? You almost certainly need to tax it.
  • Behind on compliance? A VDA wipes out penalties, but interest keeps ticking.

Ready to figure out your Indiana exposure?

Schedule a free consultation with a sales tax expert who can assess your specific situation and map out exactly what you need to do. Sales tax is complicated. We're not.

Schedule your free consultation
FAQ

Indiana sales tax, answered

What is Indiana's sales tax rate?

Indiana has a 7% flat statewide rate with no local sales taxes.

How quickly must businesses register after crossing the threshold?

Immediately — there is no grace period, making Indiana stricter than most states.

Does Indiana tax SaaS and digital products?

Yes, SaaS and digital goods are taxable — businesses should assume these items are taxable unless a specific exemption applies.

Can Indiana cities or counties add their own sales taxes?

No, Indiana is not a home rule state — local jurisdictions cannot impose their own sales taxes.