Indiana operates a streamlined sales tax system with a single, uniform state rate of 7% that applies statewide without local variations. This flat rate structure simplifies compliance for businesses operating in the Hoosier State, making Indiana one of the easier states for sales tax administration in 2026.
Indiana Sales Tax Rate Structure
Unlike many states that have complex local tax layers, Indiana maintains a consistent 7% sales tax rate across all jurisdictions. Whether you are selling in Indianapolis, Fort Wayne, Evansville, or any small town, the rate remains the same. This uniformity eliminates the need for complex rate lookup systems and reduces the risk of charging incorrect rates.
- State Rate: 7%
- Local Rate: 0% (no local sales taxes in Indiana)
- Combined Rate: 7% statewide
- Use Tax Rate: 7%
What is Taxable in Indiana?
Indiana taxes the sale of tangible personal property and certain services. Common taxable items include retail goods, electronics, furniture, appliances, and prepared food. The state also taxes many services including installation, repair, and maintenance services when bundled with tangible personal property.
Exemptions include groceries for home consumption (unlike some neighboring states), prescription drugs, medical devices, and certain manufacturing equipment. Understanding these exemptions is crucial for proper compliance. For a complete overview of taxable items across states, see our sales tax nexus by state guide.
Economic Nexus for Remote Sellers
Indiana adopted economic nexus rules following the Wayfair decision, requiring out-of-state sellers to collect and remit sales tax if they exceed $100,000 in gross revenue from Indiana sales or conduct 200 or more separate transactions with Indiana customers in the current or previous calendar year.
Meeting either threshold creates a collection obligation. Remote sellers should carefully monitor both their Indiana revenue and transaction counts. For comprehensive information on thresholds across all states, consult our economic nexus threshold by state guide.
If you are uncertain about your obligations, our complete FAQ for remote sellers provides clear guidance on determining whether you need to collect Indiana sales tax.
Registration and Licensing
Before collecting Indiana sales tax, businesses must register with the Indiana Department of Revenue. Registration is free and can be completed online through the INTax portal. You will need your federal EIN, business structure information, and details about your business activities.
Once approved, you will receive a Registered Retail Merchant Certificate (RRMC) that must be displayed at your place of business. This certificate must be renewed every two years. Failure to maintain a valid certificate can result in penalties and loss of your ability to legally collect sales tax.
Filing Requirements and Deadlines
Indiana assigns filing frequencies based on your sales tax liability:
- Monthly: $1,000 or more in monthly tax liability
- Quarterly: $250 to $999 in monthly tax liability
- Annual: Less than $250 in monthly tax liability
Returns are due on the 20th of the month following the reporting period. Monthly filers must submit January 2026 sales by February 20, 2026. Indiana encourages electronic filing through the INTax system, which is required for businesses with significant tax liabilities.
Multi-State Considerations
Indiana’s flat rate and lack of local taxes make it simpler than neighboring states like Illinois, which has complex local tax structures. However, businesses operating near state borders must carefully track where sales occur and where delivery takes place.
For businesses with operations across multiple states, conducting a sales tax nexus study can help identify all collection obligations. This is especially important for Indiana businesses selling into neighboring states with different economic nexus thresholds.
Audit Preparation and Defense
The Indiana Department of Revenue conducts regular sales tax audits to ensure compliance. Common audit issues include improper exemption documentation, failure to tax shipping charges when required, and incorrect classification of products or services.
Protecting your business requires maintaining detailed records, properly documenting exempt sales, and understanding Indiana’s specific requirements. Review our sales tax audit defense guide for strategies to minimize audit risk and respond effectively if selected for examination.
Professional Compliance Support
While Indiana’s flat 7% rate simplifies some aspects of compliance, navigating nexus rules, exemption certificates, and multi-state obligations can still challenge growing businesses. Professional assistance from Abaca Tax can provide peace of mind and ensure complete sales tax compliance across all your business locations.
Their team can help with nexus analysis, registration, ongoing filing, and audit representation—allowing you to focus on growing your business rather than managing tax compliance.
Additional Resources
For comprehensive Indiana sales tax information, including rate verification and exemption certificate forms, visit StatesSalesTax.com. Their Indiana resources provide detailed guidance on state-specific requirements.
E-commerce businesses should also review our ecommerce sales tax compliance guide for platform-specific guidance that applies to Indiana transactions.
If you are selling across state lines, understanding Wayfair compliance requirements is essential for maintaining good standing with Indiana and other state tax authorities.
Conclusion
Indiana’s straightforward 7% statewide sales tax rate simplifies compliance compared to states with complex local tax structures. By understanding registration requirements, economic nexus thresholds, and filing obligations, businesses can efficiently manage their Indiana sales tax responsibilities. Whether you are an Indiana-based retailer or a remote seller meeting Indiana customers, this guide provides the foundation for maintaining compliant sales tax operations in the Hoosier State.