- April 1, 2026
- Posted by:
- Category: Sales Tax Registration
Nexus Explained: When You Owe Sales Tax in Another State (Indiana Sales Tax Registration)
What “Nexus” Means for Sales Tax
Nexus is the connection between a business and a state that allows the state to require the business to register, collect, and remit sales tax. If your business has nexus with a state, you may need to:
- Register for that state’s sales tax permit
- Collect sales tax on taxable sales shipped or delivered into that state
- File sales tax returns on the required schedule (monthly, quarterly, or annually)
- Maintain records supporting tax collected, exemptions, and sourcing
Indiana Sales Tax Snapshot (Quick Reference)
Indiana is a destination-based sales tax state for most shipped goods, meaning the tax rate is generally based on where the buyer receives the product. Indiana has a statewide sales tax rate with no local sales tax add-ons.
| State | State sales tax rate | 5 major cities | 5 major counties |
|---|---|---|---|
| Indiana | 7% | Indianapolis, Fort Wayne, Evansville, South Bend, Carmel | Marion, Lake, Allen, Hamilton, St. Joseph |
The Two Main Types of Nexus: Physical vs. Economic
Physical Nexus (Traditional Nexus)
Physical nexus generally exists when your business has a physical presence in a state. Common physical nexus triggers include:
- An office, store, warehouse, or other location
- Employees, sales reps, or agents working in the state
- Inventory stored in the state (including third-party fulfillment warehouses)
- Deliveries using your own vehicles into the state
- Trade show presence or other in-state activities (depending on the state’s rules)
Economic Nexus (Remote Seller Nexus)
Economic nexus is based on sales activity into a state, even without physical presence. States set thresholds (often based on revenue, transaction count, or both). If you exceed a state’s threshold, you may be required to register and collect sales tax there.
Economic nexus rules vary by state, so a business can have nexus in one state but not another—even with the same sales patterns.
When an Indiana Business Owes Sales Tax in Another State
If you operate from Indiana and sell into other states, you can owe sales tax outside Indiana when your activities create nexus in the customer’s state. Typical scenarios include:
- Remote sales growth: Your online sales into a state exceed that state’s economic nexus threshold.
- Marketplace expansion: You sell through marketplaces that may have special collection rules, but you may still have registration or filing responsibilities depending on the state and your other sales channels.
- Inventory placement: Your products are stored in a fulfillment center located in another state.
- Service work or installations: You send staff to another state to perform taxable services, repair work, or installations.
- In-state representatives: You hire contractors or sales agents in another state who solicit sales or support customers.
When You Must Register (and When You Should Register Earlier)
Registration is typically required once nexus is established. In practice, many businesses choose to register as soon as they are close to a threshold or begin activities that clearly create nexus (like storing inventory in another state) to avoid scrambling and to reduce exposure.
Common Registration Timing Mistakes
- Waiting until year-end to review sales and realizing thresholds were exceeded months earlier
- Assuming “online-only” means no nexus anywhere
- Ignoring inventory stored out of state by third-party fulfillment providers
- Collecting tax without registering (which can create compliance issues)
How Sales Tax Collection Works Once You Have Nexus
After registration, you generally must:
- Charge the correct rate: Apply destination-based or origin-based rules as required by that state.
- Handle exemptions properly: Collect and store valid exemption certificates when applicable.
- File on time: Submit returns even for periods with no tax due if the state requires “zero returns.”
- Remit tax collected: Pay by the due date using the state’s approved payment methods.
Indiana-Specific Considerations for Multi-State Sellers
Indiana sellers often face multi-state compliance as they expand e-commerce or wholesale distribution. A practical approach is to map where you have:
- Out-of-state inventory
- Employees or contractors traveling
- Growing customer concentrations
- Sales channels (direct site, wholesale, marketplaces)
If you are building your compliance checklist, use a structured guide to keep your registration steps organized. See the state sales tax ID and business license permit how-to guide for a simple way to think through registration and account setup.
Practical Steps to Confirm Nexus and Register Correctly
- Step 1: List every state where you have customers. Include direct sales, wholesale, and marketplace sales.
- Step 2: Identify physical presence. Inventory, people, property, vehicles, or in-state events.
- Step 3: Compare sales levels to economic thresholds. Track revenue and transactions by state on a rolling basis.
- Step 4: Determine who collects tax. Marketplace vs. direct sales responsibilities can differ.
- Step 5: Register before you begin collecting. Align your effective date, systems setup, and first filing period.
- Step 6: Configure your checkout and invoicing. Ensure correct sourcing and product taxability rules.
If you need help navigating the registration process or choosing the right next step, you can reach out through contact and online chat support.
FAQ: Nexus and Owing Sales Tax in Another State (Indiana Context)
1) If my business is in Indiana, do I automatically owe sales tax in every state I sell to?
No. You generally owe sales tax collection duties in another state only after you create nexus there (physical or economic) under that state’s rules.
2) Does shipping products from Indiana create nexus in the customer’s state by itself?
Shipping alone does not automatically create physical nexus, but repeated sales into a state can create economic nexus if you exceed that state’s threshold.
3) If I store inventory in a fulfillment warehouse outside Indiana, is that nexus?
In many states, yes. Inventory stored in a state is a common physical nexus trigger, even if a third party stores and ships the items for you.
4) Do I need to register before I start collecting sales tax in another state?
Yes in most situations. Registration is typically required before you collect tax so your collection is tied to an active permit and proper filing account.
5) What if I exceed a state’s economic nexus threshold mid-year?
Many states require registration shortly after the threshold is exceeded, with collection beginning based on that state’s effective date rules. Track sales frequently so you can register on time.
6) If a marketplace collects sales tax for me, do I still need a permit in that state?
Possibly. Some states still require registration or filings for marketplace-only sellers, while others do not. Also, if you make any direct (non-marketplace) sales into that state, you may have additional obligations.
7) Can attending a trade show in another state create nexus?
It can, depending on the state and what you do there (taking orders, making sales, having repeated presence). A one-time event may still matter, so document dates and activities.
8) If I only sell services from Indiana, can I owe sales tax in another state?
Yes. Some states tax certain services, digital products, or bundled offerings. Nexus can still apply even if you do not sell tangible goods.
9) Do I have to collect sales tax on shipping charges in other states?
It depends on the state and how shipping is stated on the invoice (separately stated, mandatory, optional) and whether the underlying item is taxable. Each state has its own treatment.
10) What records should an Indiana business keep to support multi-state sales tax compliance?
Keep detailed sales by state, transaction counts, exemption certificates, invoices, shipping destination data, marketplace reports, inventory locations, and proof of filing and payment confirmations.