Iowa use tax is a 6% tax you owe on goods and services you use, store, or consume in Iowa when the seller did not collect Iowa sales tax. It is the companion to the sales tax, and it exists to catch purchases that would otherwise escape tax, most often items shipped to Iowa from out-of-state retailers. If no one charged you Iowa tax at checkout, the law puts the responsibility on you to report and pay.
When You Owe Use Tax
A use tax obligation arises whenever taxable property or a taxable service enters Iowa without Iowa sales tax having been collected. The common examples: clothing, electronics, furniture, or equipment ordered from an online retailer that does not charge Iowa tax; inventory and office supplies a business buys from an out-of-state vendor; something you purchase while traveling in a lower-tax state and bring home. Under Iowa Code § 423.5, the tax applies at 6% of the purchase price, and the buyer is the one who owes it.1Iowa Legislature. Iowa Code 423.5 – Imposition of Tax
Delivery into Iowa is treated as evidence the property was bought for use here, so if you disagree, the burden sits with you to show otherwise.
Digital Products, Software, and Subscriptions
The tax reaches well past physical goods. Since January 2019, specified digital products delivered electronically are taxable in Iowa. That covers e-books, downloaded music, streaming movies, video games, digital images, and mobile apps. Software is taxable whether you download it or access it in a browser, and that includes software-as-a-service hosted on a vendor’s server.2Iowa Department of Revenue. Taxation of Specified Digital Products, Software, and Related Services
Information services sit inside the tax base too. Research databases, credit reporting services, mailing list providers, and similar subscriptions owe use tax when the seller doesn’t collect Iowa sales tax. Even in-game currency and video game tournament entry fees fall within the base.2Iowa Department of Revenue. Taxation of Specified Digital Products, Software, and Related Services
The Rate Is 6%, With No Local Add-On
The state use tax rate matches the sales tax rate of 6% under Iowa Code § 423.2.3Iowa Legislature. Iowa Code 423.2 – Tax Imposed A detail worth knowing: there is no local option use tax. Most Iowa jurisdictions add a 1% local option sales tax on in-store purchases, but that extra percent does not apply to consumer use tax. When you self-report an out-of-state purchase, you owe 6% to the state, not 7%.4Iowa Department of Revenue. Sales and Use Tax Guide
Shipping follows the invoice. When delivery charges are separately stated on the invoice or sales agreement, they are not taxable. When the seller bundles shipping into one price, the full amount is part of the taxable purchase price.5Cornell Law Institute. Iowa Admin Code r 701-204.8 – Freight, Other Transportation Charges, and Exclusions From the Exemption Applicable to These Services
Vehicles Follow a Different Rule
Vehicles subject to registration do not pay the 6% use tax. Instead, Iowa charges a fee for new registration of $10 plus 5% of the purchase or lease price, paid to the county treasurer at registration. The obligation sits in Iowa Code § 321.105A, separate from the use tax statute.6Iowa Department of Revenue. Iowa Tax/Fee Descriptions and Rates Vehicles that only need a title and not registration still owe the standard 6% use tax before a title will be issued.7Iowa Legislature. Iowa Code 423.26 – Vehicles Subject Only to the Issuance of Title
Credit for Tax Paid to Another State
If you already paid sales or use tax to another state on the same purchase, you get a credit under Iowa Code § 423.22 and owe only the difference up to 6%. Buy a laptop in a state with 4% tax, and you owe Iowa 2%. Pay 6% or more elsewhere, and you owe Iowa nothing.8Iowa Legislature. Iowa Code 423.22 – Taxation in Another State
Keep the receipt showing tax paid in the other state. The credit covers any legally imposed sales, use, or occupation tax, including local taxes paid elsewhere, and you may be asked to document the amount.
What’s Exempt
The same exemptions that apply to Iowa sales tax apply to use tax. The ones most people run into:
- Food and food ingredients sold for human consumption, whether fresh, frozen, canned, or dried. Prepared food, alcohol, dietary supplements, and tobacco do not qualify.9Iowa Department of Revenue. Iowa Sales Tax on Food
- Prescription drugs.9Iowa Department of Revenue. Iowa Sales Tax on Food
- Items purchased for resale, if you give the seller a completed Iowa Sales/Use/Excise Tax Exemption Certificate (Form 31-014a) within 90 days of purchase. If you later use the item yourself, you owe the tax.10Iowa Department of Revenue. Iowa Sales/Use/Excise Tax Exemption Certificate Instructions
- Manufacturing machinery, equipment, replacement parts, and computers used directly and primarily in manufacturing. The buyer must qualify as a manufacturer; construction contractors, repair services, health care providers, and farms generally do not.11Iowa Department of Revenue. Iowa Sales and Use Tax on Manufacturing and Processing
- Self-propelled farm implements, attachments, and replacement parts used directly and primarily in agricultural production.12Iowa Department of Revenue. Farmers Guide to Iowa Taxes
Why Many Online Purchases Already Have Tax Collected
Since the Supreme Court’s 2018 decision in South Dakota v. Wayfair, Iowa can require out-of-state sellers to collect tax without a physical presence in the state. A remote seller must collect once it reaches $100,000 or more in gross revenue from Iowa sales in the current or previous calendar year. Marketplace facilitators such as Amazon, eBay, and Etsy that pass that threshold must collect Iowa tax on all taxable sales made through their platforms.13Iowa Department of Revenue. Remote Sellers and Marketplace Facilitators
For buyers, that shrinks the use tax gap. Purchases from major online marketplaces almost always already include Iowa tax. The obligation you actually need to track tends to come from smaller out-of-state vendors, private party sales, or purchases from sellers who have no Iowa collection requirement.
How to File and Pay
How you file depends on whether you hold an Iowa sales and use tax permit. Businesses with a permit report use tax on their regular Iowa Sales and Use Tax Return (Form 32-028). Everyone else uses the Iowa Consumer’s Use Tax Return, currently Form 32-024a, posted on the Department of Revenue’s website.14Iowa Department of Revenue. Forms – Sales and Use Tax The quickest route is GovConnectIowa, the state’s online tax portal; paper returns can also be mailed to the Department.15Iowa Department of Revenue. GovConnectIowa
Before you file, pull invoices for every taxable purchase where Iowa tax was not collected during the reporting period. You’ll need each purchase price, a note of whether delivery charges were separately stated, and proof of any sales tax paid to other states so you can claim the credit.
Filing Frequency
Filing frequency depends on your annual tax. If you owe less than $1,200 in sales and use tax per year, you file once a year, with the return and payment due January 31 for the prior calendar year. Larger liabilities file monthly, with each return due on the last day of the following month.16Iowa Department of Revenue. Filing Frequency and Return Due Dates Iowa Code § 423.31 requires monthly filers to submit returns electronically.17Iowa Legislature. Iowa Code 423.31 – Filing of Sales or Use Tax Returns and Payment
What Happens If You File Late
Missing a deadline is expensive. The Department of Revenue imposes a 5% penalty on the unpaid tax for failure to file by the due date, and another 5% penalty for failure to pay the tax owed on time. Both apply when you’ve paid less than 90% of the correct amount by the deadline. If you still haven’t filed 90 days after the Department sends a demand letter, a separate $1,000 penalty is assessed for each unfiled return listed in the letter.18Department of Revenue. Penalties and Interest Rates
Interest accrues on top of penalties from the original due date. For 2026, the annual rate on delinquent tax is 10%, roughly 0.83% per month.18Department of Revenue. Penalties and Interest Rates A forgotten return on a large purchase can grow quickly, so filing on time, even if you need to amend later, is the cheapest path.