4905: Insurance Company Annual Return for Corporate Income and Retaliatory Taxes (2025)
Michigan · Michigan Treasury · Used for tax years 2025
Michigan Form 4905 is the 2025 Insurance Company Annual Return for Corporate Income and Retaliatory Taxes. It reports Michigan insurance premiums, tax calculations, credits, payments, and any tax due or overpayment. Foreign and alien insurers also use it to calculate the retaliat
Who files this form
Form 4905 is Michigan’s 2025 Insurance Company Annual Return for Corporate Income and Retaliatory Taxes.
The form includes directions for domestic, foreign and alien insurers. Foreign and alien insurers complete the retaliatory tax calculation on lines 32 through 46. Domestic insurers enter the amount from line 31 on line 47.
What you'll need
Have the information needed for the form ready, including:
- Taxpayer name, address, Federal Employer Identification Number (FEIN) and state of incorporation.
- Michigan premium amounts, including separate amounts for qualified health insurance policies and all other policies, and the deductions listed on lines 6 through 9.
- Disability insurance premium amounts and gross direct premiums from insurance carrier services everywhere.
- Amounts paid to the organizations listed on lines 24a through 24e from January 1, 2024, through December 31, 2024, plus Michigan examination fees or regulatory fees.
- Prior-period overpayments credited forward, estimated tax payments, extension payments and applicable credit amounts.
Additional documents referenced by the form include:
- Form 5793 for tax liability after the Historic Preservation Credit.
- Form 4902 for recapture of certain business tax credits.
- Form 4899 for underpaid estimated tax penalty and interest.
- A supporting document attached for the Workers’ Disability Supplemental Benefit (WDSB) Credit.
- Detailed schedules for other fees reported on line 39 and other assessments reported on line 44.
Common mistakes
- Using Form 4905 to amend a return. The form says it cannot be used as an amended return. Use Form 4906, Insurance Company Amended Return for Corporate Income and Retaliatory Taxes.
- Stopping after page 1. The form reminds filers to continue and sign on page 2.
- Completing lines 5 through 23 without checking the instructions. The form specifically directs filers to read the instructions before completing those lines. Those instructions were not included in the supplied text.
Questions people ask
Which premium categories does the form separate?
Column A is for qualified health insurance policies. Column B is for all other policies.
How do foreign and alien insurers complete the retaliatory tax columns?
On lines 32 through 46, column A reports burdens the insurer’s state of incorporation would impose on a hypothetical Michigan company doing the same business there. Column B reports actual burdens Michigan imposes on the taxpayer.
Can an overpayment be refunded or applied to the next tax year?
Yes. Line 61 reports the portion of the overpayment on line 60 to credit forward as an estimate for the next tax year. Line 62 reports the refund, calculated by subtracting line 61 from line 60.
Can Treasury discuss the return with my preparer?
The form includes a checkbox authorizing Treasury to discuss the return with the preparer.