Iowa Department of Revenue Concludes that Vehicle Polishing is a Non-taxable Service

Here’s a story that should make any vehicle detailing business breathe a little easier. Back in October 2025, the Iowa Department of Revenue (the “Department”) hit a chrome polishing business with a notice of assessment for more than $160,000. Ouch. The Department’s theory? That polishing vehicles was either (1) vehicle repair, (2) vehicle wash and wax service, or (3) both.

So what do the rules actually say? Iowa Admin. Code r. 701—218.2 defines “repair” as “any type of restoration, renovation, or replacement of any motor, engine, working parts, accessories, body or interior of a vehicle.” Meanwhile, Iowa Admin. Code r. 701—218.6 treats businesses that wash and wax vehicles as selling taxable services, “whether performed by hand, machine, or coin operated device.” That rule then erroneously references Iowa Admin. Code r. 701—225.7 for the taxation of inputs used in vehicle wash and wax services but 701—225.7 actually relates to exemption for purchases by commercial enterprises. The rule that Iowa Admin. Code r. 218.6 should reference is Iowa Admin. Code r. 701—225.6,  deals with car wash facilities.

The business pushed back with a timely appeal, and its arguments were pretty compelling. First, polishing isn’t “repair”; if anything, it leaves the vehicle in worse shape, since it strips away layers of the paint or chrome being polished. Second, it isn’t a wash and wax service either, because the business isn’t the kind of car wash facility the Department’s rules in Iowa Admin. Code r. 701—225.6 have in mind. The result? The Department canceled the whole assessment. Every penny.

WHAT THIS MEANS FOR YOU

Here are a few lessons worth taking away from this one:

1. Know exactly what you do. If the Department sends you a notice of intent to audit or an assessment, explain your services in detail. Don’t let them guess.

2. Read the rules yourself. Check the administrative rules to see whether what you actually do fits the service the Department says you’re providing. Often, it doesn’t.

3. Look for money you might be owed. If you’ve been paying sales tax on vehicle polishing services, take a second look. If you shouldn’t have paid it, you may be entitled to a refund.