Michigan sales tax is filed online in Michigan Treasury Online (MTO), the Department of Treasury's secure web service, on the combined Sales, Use and Withholding Taxes return (Form 5080 for monthly and quarterly filers). Monthly returns are due on the 20th of the following month, quarterly returns are due April 20, July 20, October 20, and January 20, and every filer submits an annual return by February 28 regardless of assigned frequency.
This guide covers who files and how often, how to file in MTO, how to report no sales, how to amend a return, how to pay, and what late filing costs.
This article is educational information, not tax advice. Filing rules, thresholds, and penalties can change, so confirm current requirements with the Michigan Department of Treasury before you file.
Michigan sales tax filing at a glance
- Who administers it: Michigan Department of Treasury.
- Online portal: Michigan Treasury Online (MTO), at mto.treasury.michigan.gov.
- Return: Sales, Use and Withholding Taxes return (Form 5080 monthly/quarterly, Form 5081 annual).
- Filing frequency: Monthly, quarterly, or annual, assigned by Treasury. Accelerated filers file monthly.
- Due dates: Monthly on the 20th of the following month, quarterly on April 20, July 20, October 20, and January 20, annual on February 28 of the following year.
- Zero returns: Required. You must file even if no tax is due.
- Payment: Debit card ($3.95 flat fee), credit card (2.3% convenience fee), or free EFT debit or eCheck through MTO. Checks can be mailed.
- Rate: 6% state sales tax. Michigan does not allow cities or local units to impose sales tax.
- Economic nexus: More than $100,000 of gross sales or 200 or more separate transactions with Michigan customers in the previous calendar year.
Who has to file, and how often
Individuals and businesses that sell tangible personal property to the final consumer need a sales tax license and must remit 6% sales tax on taxable retail sales. There is no fee for the license, and it is valid January 1 through December 31. Our Michigan sales tax guide covers registration and taxability in more detail. For purchases that may be exempt, see our post on Michigan sales tax exemptions, and for software sellers see Michigan SaaS sales tax.
Remote sellers have nexus with Michigan if, in the previous calendar year, they made over $100,000 of gross sales or 200 or more separate transactions with Michigan customers. Gross sales include taxable, nontaxable, and exempt sales. A remote seller must register and begin remitting on January 1 of the year after it exceeds the threshold.
Treasury assigns your filing frequency. It sets the frequency initially from the estimated monthly tax you give on your registration, then reviews it every year and notifies you in writing if it changes. Sales, use, and withholding taxes are reported together on one combined return, so every tax type on your account shares the same frequency.
| Frequency | Due date |
|---|---|
| Monthly | The 20th of the following month |
| Quarterly | The 20th of the month after the quarter ends: April 20, July 20, October 20, and January 20 |
| Annual | February 28 of the following calendar year |
Businesses with $720,000 or more in either sales tax or use tax liability in the previous calendar year are accelerated filers. They must pay electronically, file monthly, and pay on the schedule described under payment methods below.
Before you start: get into MTO
You need a sales tax license before you can file; our sales tax permit overview explains the process. In Michigan you register for business taxes through the eRegistration process in MTO, or by mailing Form 518. Treasury says eRegistration is authenticated within 10 to 15 minutes of submission, and the license is then available in MTO with Registration access.
Once registered, anyone connected to the business tax account in MTO can view the entity's filing frequency in the SUW Tax service. Have your records for the period ready. The return asks for gross sales, which Treasury says includes both taxable and non-taxable sales. Form 5095, the monthly/quarterly worksheet, helps you work out the figures. For wholesale sales, see our Michigan resale certificate guide.
Step-by-step: filing a Michigan return in MTO
- Log in to MTO and open the SUW (sales, use and withholding) tax service for your business tax account.
- Select the return for your assigned filing frequency and period. File on your assigned schedule; Treasury notes that filing more often than assigned can put the account out of balance and lead to notices and amended returns.
- Enter gross sales for the period, including taxable and non-taxable sales.
- Enter the tax for each tax type on your account. Complete only the taxes that apply to you.
- Review and submit the return electronically.
- Pay through MTO by EFT debit or eCheck, or by card.
Filing in Michigan plus other states? Kintsugi files and remits for you, from $75 per filing, with free monitoring. Book a demo or start free.
Local and rate pitfalls
Michigan is simpler than most states here. The state rate is 6%, and Michigan does not allow city or local units to impose sales tax, so you do not need to look up a local rate for each address. Sales of electricity, natural or artificial gas, and home heating fuels for residential use are taxed at 4%. The pitfalls are elsewhere: Michigan use tax is also 6% on items brought into the state or bought from out-of-state retailers that do not collect tax, and credit is given for tax paid to another state. Our Michigan sales tax calculator shows the current rate.
Due dates and the weekend rule
Monthly returns are due on the 20th of the following month, quarterly returns on April 20, July 20, October 20, and January 20, and annual returns on February 28. Our Michigan sales tax due dates page lists upcoming dates for every state.
If a due date falls on a weekend or state holiday, the return and payment are due the next business day. Treasury's holiday list includes New Year's Day, Martin Luther King Jr. Day, Presidents Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving, the day after Thanksgiving, Christmas Eve, Christmas Day, and New Year's Eve, and Election Day in even-numbered years. If you pay by EFT, the transmission must be made on the business day before the due date, so a Saturday, Sunday, or holiday due date means transmitting the business day before the weekend or holiday.
Filing a zero return
You must file even when you owe nothing. Treasury states that if you are registered to pay a tax, you must file a return within your established filing frequency, even if no tax is due.
Amending a return
You can amend a Sales, Use and Withholding return electronically or on paper. When you complete an amended return, select or complete only the taxes you are amending and leave every other tax type blank. For a monthly or quarterly return use Form 5092, and for an annual return use Form 5082.
Treasury also notes that the annual return only reconciles, balances, and closes the tax year. It does not replace a missed monthly or quarterly return.
Payment methods
- Debit card: flat fee of $3.95 through MTO.
- Credit card: convenience fee of 2.3% of the total payment through MTO.
- EFT debit or eCheck: free through MTO. An ACH debit block on your account can prevent electronic payments from processing, so Treasury points to its EFT debit instructions for authorizing eCheck transactions.
- Check: payable to the "State of Michigan," with the business tax account number, "SUW," and the return period on the memo line. Send it with the return or separately with a payment voucher.
MTO's payment system also supports same-day payments and scheduling a future payment up to one year in advance. Card fees are paid directly to the payment processor and appear as a separate transaction.
Accelerated filers pay a prepayment by the 20th of the current month equal to 75% of the previous month's liability or 75% of the same month's liability in the prior year, whichever is less. They pay a reconciliation payment by the 20th of the next month. Treasury notifies taxpayers of an accelerated schedule change in April, and it takes effect in July.
Penalties and interest
Michigan's Revenue Act provides for penalty and interest when tax is not paid within the specified time. Treasury's general penalty guidance says the penalty is 5% of the tax due for the first two months, then rises by another 5% per month or fraction of a month, to a maximum of 25%. Interest accrues from the original due date at one percentage point above the adjusted prime rate, which Treasury adjusts each January 1 and July 1. Treasury's guidance is written for income and business taxes, so check the current notice for your return before you rely on the figures. Treasury also publishes a penalty and interest calculator.
A remote seller that has nexus but has not filed or paid may be able to use Michigan's Voluntary Disclosure program, which can offer a limited lookback period and penalty waiver in exchange for payment of tax and interest and future compliance.
Common mistakes to avoid
- Skipping zero returns. Every period on your assigned frequency needs a return, even with no tax due.
- Filing more often than assigned. Treasury says this can unbalance the account and trigger notices and amended returns.
- Filing only the annual return. It reconciles the year and does not replace monthly or quarterly returns.
- Reporting only taxable sales. The return asks for gross sales, including non-taxable sales.
- Missing the EFT timing. EFT payments must be transmitted the business day before the due date.
- Ignoring economic nexus. Over $100,000 of gross sales or 200 transactions into Michigan in a calendar year requires registration.
More state filing guides
Filing in more than one state? These step-by-step guides cover the portals, due dates, and penalties in other states. See them all in our state-by-state guide to filing sales tax online.
- How to file Ohio sales tax online
- How to file Minnesota sales tax online
- How to file Illinois sales tax online
Let Kintsugi file for you
If you sell in Michigan and other states, Kintsugi's sales tax filing software prepares and files returns on each state's assigned schedule and remits payment. Monitoring across every US state is free, so you know when you cross a threshold. Filing starts at $75 per filing or registration, with no per-state subscription. See pricing, start free, or book a demo.
Frequently asked questions
What form do I use to file Michigan sales tax?
The Sales, Use and Withholding Taxes return, filed online in MTO. Form 5080 is the monthly/quarterly return and Form 5081 is the annual return.
When is Michigan sales tax due?
Monthly returns are due on the 20th of the following month. Quarterly returns are due April 20, July 20, October 20, and January 20. All filers submit an annual return by February 28.
Do I have to file if I had no sales?
Yes. If you are registered to pay a tax, you must file within your filing frequency even if no tax is due.
How do I amend a Michigan sales tax return?
Amend electronically or on paper, completing only the taxes you are amending. Use Form 5092 for a monthly or quarterly return and Form 5082 for an annual return.
What is the economic nexus threshold in Michigan?
Over $100,000 of gross sales or 200 or more separate transactions with Michigan customers in the previous calendar year.
Does Michigan have local sales tax?
No. Michigan does not allow city or local units to impose sales tax. The state rate is 6%.
Sources
Checked September 29, 2026.
- Michigan Department of Treasury, Sales and use taxes
- Michigan Department of Treasury, Michigan Treasury Online
- Michigan Department of Treasury, Filing frequency (SUW tax returns)
- Michigan Department of Treasury, Filing requirements FAQ
- Michigan Department of Treasury, 2026 sales and use tax forms
- Michigan Department of Treasury, Sales, use and withholding tax due dates for holidays and weekends
- Michigan Department of Treasury, Accelerated information
- Michigan Department of Treasury, MTO electronic payments
- Michigan Department of Treasury, Sales, use, and withholding tax payment options
- Michigan Department of Treasury, Remote seller FAQ
- Michigan Department of Treasury, Sales tax license FAQ
- Michigan Department of Treasury, Calculate late penalty and interest
- Michigan Department of Treasury, Why am I being charged penalty and/or interest?
