Iowa Sales Tax Guide & Nexus Calculator (2026)
Iowa has a 6% state rate and taxes digital goods including SaaS. It is an SST member state, which simplifies registration for sellers onboarding to multiple states simultaneously. Local rates are relatively modest compared to many other states.
Quick Reference
Section titled “Quick Reference”| Criterion | Detail |
|---|---|
| State Rate | 6% |
| Economic Nexus Threshold | $100,000 gross sales (rolling 12 months) |
| Transaction Threshold | None |
| Digital Goods / SaaS | Taxable |
| Typical Filing Frequency | Quarterly |
| SST Member | Yes |
| Registration Portal | tax.iowa.gov (GovConnect) |
Economic Nexus
Section titled “Economic Nexus”For informational purposes only · Not legal or tax advice · Consult a licensed tax professional · Rules as of 2026
Iowa’s economic nexus threshold is $100,000 in gross sales into Iowa in the current or prior calendar year. Once exceeded, registration and collection are required.
Iowa eliminated its 200-transaction alternative threshold before 2025. Marketplace-facilitated sales count toward the threshold.
Tax Rate and Product Taxability
Section titled “Tax Rate and Product Taxability”Iowa’s state rate is 6%. Iowa allows local option sales tax (LOST) which counties may impose:
- State: 6%
- Local option: typically 1% (most counties that have enacted a local option use 1%)
- Combined total in most Iowa cities: 7%
Not all Iowa counties have a local option tax. Check whether the destination county has enacted one.
Product Categories
Section titled “Product Categories”Taxable: Tangible personal property, digital goods (including SaaS), prepared food, most retail goods.
Exempt: Prescription drugs, most groceries, qualifying farm equipment, certain medical devices.
Grocery exemption: Iowa exempts most food items (food and food ingredients for home consumption). Candy, soft drinks, and prepared food remain taxable.
Digital Goods and SaaS
Section titled “Digital Goods and SaaS”Iowa taxes digital goods and SaaS. Iowa’s Department of Revenue has broadly applied sales tax to digital products:
- SaaS — taxable in Iowa; the right to access software is treated as a taxable service
- Downloaded software — taxable
- Digital content (music, ebooks, movies, streaming) — taxable
- Online subscriptions for digital services — taxable
Iowa’s digital goods taxability is relatively comprehensive. SaaS sellers crossing the $100,000 threshold have a clear collection obligation.
Registration
Section titled “Registration”Iowa is an SST member state. Register through the SSTRS at streamlinedsalestax.org for multi-state coverage including Iowa.
For Iowa-only registration:
- Go to the Iowa Department of Revenue portal: tax.iowa.gov
- Access GovConnect Iowa
- Register for a sales and use tax permit
- Provide EIN and business information
- You will receive an Iowa Permit Number
Registration is free.
Foreign Sellers
Section titled “Foreign Sellers”Iowa accepts foreign business registrations through GovConnect. A US EIN is required.
Filing Frequency and Deadlines
Section titled “Filing Frequency and Deadlines”| Annual Tax Liability | Filing Frequency |
|---|---|
| Less than $1,200 | Annual |
| $1,200–$6,000 | Quarterly |
| More than $6,000 | Monthly |
Quarterly due dates: Returns due on the last day of the month following the quarter end (April 30, July 31, October 31, January 31).
Returns are filed through GovConnect Iowa.
Compliance Notes
Section titled “Compliance Notes”Local option tax: Iowa’s local option sales tax is enacted county-by-county. Approximately 90% of Iowa’s population lives in counties that have enacted the 1% local option tax, so most of your Iowa orders will be at 7%. Verify whether specific destination counties have enacted the tax.
SST membership: Use the SSTRS for multi-state registration covering Iowa.
Digital sellers: Iowa taxes SaaS, so digital-only sellers with Iowa customers must register once they cross $100,000.
Amazon FBA: Verify whether your Iowa FBA inventory creates physical nexus — Amazon has fulfillment operations in Iowa.