Iowa Sales Tax Nexus & Economic Nexus Threshold (2026)
Reviewed by Nexus by State research team using official state tax sources. Last reviewed .
Guide content last reviewed: 2026-06-19; state source data last retrieved: 2026-06-14
Economic nexus triggers at $100,000 in sales delivered to Iowa customers.
6.00% statewide sales tax rate, with an average combined state and local rate of 6.94%.
See how Iowa’s numbers stack up against every other state in our sales tax rates and economic nexus thresholds by state reference table.
| Economic nexus threshold | $100,000 No transaction count threshold |
|---|---|
| State sales tax rate | 6.00% Average combined rate (state + local): 6.94% |
| Marketplace facilitator law | Yes Amazon, Etsy, eBay collect and remit on your behalf |
| Effective date | 2019-07-01 |
| Department of Revenue |
Check Iowa nexus with your numbers
If your sales are close to the Iowa threshold, run the sales tax nexus calculator with your revenue and transaction count before you register. The calculator applies the same state threshold data shown here and can compare Iowa against every other state where you sell.
How Iowa nexus works
Iowa sales/use tax nexus and economic nexus threshold: a remote seller or marketplace facilitator must register, collect, and remit Iowa sales tax only if its gross revenue from Iowa sales is $100,000 or more in a calendar year. Iowa originally enacted a $100,000-or-200-transaction test effective January 1, 2019 (Senate File 2417) but eliminated the 200-transaction threshold effective July 1, 2019 (House File 779), so the current trigger is sales-only. The $100,000 figure counts all Iowa revenue, including exempt sales, wholesale sales, sales for resale, and sales for which a marketplace facilitator collected the tax. Marketplace facilitators meeting the threshold collect and remit on behalf of their marketplace sellers. Iowa imposes a 6% state sales tax plus a 1% local option sales tax in most jurisdictions. Iowa Department of Revenue source data last retrieved 2026-06-14.
Filing frequency
Filing frequency in Iowa depends on your sales tax liability. Higher-volume sellers file monthly; lower-volume sellers typically file quarterly or annually. The state will assign a frequency when you register.
Marketplace facilitator law
Yes, Iowa has a marketplace facilitator law. Sales you make through Amazon, Etsy, eBay, Walmart, and other marketplaces are collected and remitted by the marketplace — you do not need to collect tax on those transactions yourself, though you may still need to register.
Iowa sales tax by topic
- Iowa · E-commerceGeneral e-commerce sales tax rules
- Iowa · ShopifyShopify-specific sales tax guidance
- Iowa · AmazonAmazon FBA and marketplace sales tax
- Iowa · SaaSSoftware-as-a-service sales tax rules
- Iowa · ThresholdsEconomic and transaction nexus thresholds
- Iowa · FilingFiling frequency and procedures
- Iowa · Marketplace FacilitatorMarketplace facilitator law for the state
- Iowa · DropshippingDropshipping sales tax rules and resale certificates
- Iowa · Digital ProductsSales tax on digital downloads, eBooks, courses, streaming
Industry-specific sales tax guides
Whether a sale is taxable in Iowa often depends on what you sell, not just where. These national guides explain how sales tax applies to common business types — then check the Iowa threshold and rules above to see where you must register and collect.
- Haircut, nail, and salon sales taxWhen haircuts, nail services, and salon retail product sales are taxable.
- Restaurant and food-service sales taxPrepared-food, dine-in, and takeout taxability for restaurants.
- Food delivery sales tax (DoorDash, Uber Eats)Who collects sales tax on DoorDash, Uber Eats, and Grubhub orders.
- Digital creator and online course sales taxSales tax for influencers, course sellers, and digital downloads.
- Construction and contractor sales taxHow contractors handle sales and use tax on materials and labor.
Related states to Iowa
If you sell into Iowa, you likely also sell into these nearby or economically similar states. Each has its own nexus threshold and rate.
Frequently asked questions
- Does Iowa have sales tax?
- Yes. Iowa has a 6.00% statewide sales tax rate, plus an average local rate of 0.94%. Check the exact rate at the customer's delivery address before charging. Source data last retrieved 2026-06-14.
- Do I have to collect sales tax in Iowa?
- You must collect Iowa sales tax if your economic nexus threshold is met: $100,000 in sales to Iowa customers.
- What is Iowa's sales tax rate?
- Iowa's base state rate is 6.00% plus an average local rate of 0.94%. Always check the exact rate at the customer's delivery address before charging.
- Does Iowa have a marketplace facilitator law?
- Yes. Marketplaces like Amazon, Etsy, and eBay collect and remit Iowa sales tax on behalf of third-party sellers for transactions they facilitate. Direct-to-consumer sales outside a marketplace are still your responsibility.
- What is Iowa's marketplace facilitator threshold for sales tax?
- Iowa applies the same threshold to marketplace facilitators as to remote sellers: $100,000 in Iowa sales over the lookback period. When a marketplace exceeds the threshold, it must register and collect Iowa sales tax on every facilitated sale — sellers do not collect on those marketplace transactions. Direct-to-consumer sales you make outside any marketplace still count toward your own economic nexus and remain your collection responsibility once you cross the threshold.
- When did Iowa's economic nexus law take effect?
- Iowa's current economic nexus rule took effect on 2019-07-01.
Sources
date_retrieved: 2026-06-14. See how we verify source checks in our Methodology & Sources.