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Michigan

Michigan state tax filings.

Which agencies Michigan uses, which forms they take, and what Michigan does differently. Every entry carries the date it was checked against the agency's own material.

Who you deal with in Michigan

Michigan Department of Treasury, Registration Section

Sales and use tax registration, and other tax types on the same form

Michigan Treasury Online

Michigan Unemployment Insurance Agency

Unemployment insurance employer account

MiWAM

Michigan Department of Treasury

Sales and use tax registration, alongside withholding, corporate income tax, and the unemployment account

Michigan Treasury Online

3 separate agencies, on 3 separate systems. Doing something with one does nothing to the others.

What Michigan does differently

  • Two forms, two agencies, and no crossover. Form 163 goes to Treasury. UIA 1772 goes to the Unemployment Insurance Agency. Filing one tells the other nothing, and a business that files only Form 163 keeps an open unemployment account.
  • Zero returns keep coming until the form is filed. Michigan is explicit that Form 163 is what stops the requirement, so a business that stopped selling and stopped filing has been accruing missed returns rather than quietly winding down.
  • The paper route needs two schedules nobody mentions. Filing Form 518 on paper for unemployment purposes requires Schedule A, the Liability Questionnaire, and Schedule B, the Successorship Questionnaire. A 518 arriving without them is incomplete for the UI side.
  • One form covers a lot, which cuts both ways. Sales, use, withholding, corporate income tax, and unemployment all sit on Form 518. Ticking a box you do not need creates a filing obligation that outlives the decision, because Michigan expects zero returns until the account is discontinued.

Filings we handle in Michigan

Sales tax account closure in Michigan

Form 163 formally closes the account and stops the requirement for zero returns. Missing the signature, title, or effective date is what gets it sent back.

1 agency · Verified 2026-08-03

Payroll tax registration in Michigan

One Form 518 registers Michigan withholding, sales, use, and unemployment together. On paper it needs Schedules A and B. Quarterly deadlines fall on the 25th.

2 agencies · Verified 2026-08-03

Sales tax registration in Michigan

One Form 518 registers Michigan sales, use, withholding, and unemployment together. Michigan Treasury Online is materially faster than posting it.

1 agency · Verified 2026-08-03

You keep the client. We never email them.