Estimate the Tax Bill Before You Buy
Use taxable value and the millage for the property’s address. A transfer can change the taxable value the following year.
How to calculate the tax
Taxable value × applicable mills ÷ 1,000 = estimated millage-based tax.
For example, $150,000 in taxable value at 35 mills produces an estimated $5,250 in annual millage-based taxes. Those inputs are illustrative. Check the parcel’s actual rate and any special assessments or other charges separately.
Start with the Michigan Treasury property tax estimator and confirm the inputs with the local assessor or treasurer.
Assessed value and taxable value
Michigan generally assesses property at 50% of true cash value, subject to equalization. State equalized value (SEV) can differ from taxable value. For a property that remains capped, the annual calculation generally applies the lower of inflation or 5% to the prior taxable value after losses and then accounts for additions. Taxable value is generally the lower of that capped value and SEV.
What changes after a purchase
After a transfer that triggers uncapping, taxable value generally becomes the SEV in the following calendar year. Some transfers are exempt. The future SEV depends on the assessor’s valuation, so half the purchase price is only a rough planning assumption. Ask the assessor for guidance before budgeting from the seller’s bill. Michigan Treasury’s transfer and uncapping guidance explains the rules.
Tom’s tip. Estimate the post-purchase bill before finalizing your offer.
Exemptions, appeals, and payment
A qualifying Principal Residence Exemption can remove up to 18 mills of local school operating tax. Check eligibility and filing with your assessor. The Homestead Property Tax Credit is a separate Michigan income tax credit for eligible homeowners and renters.
If an assessment looks wrong, check your notice for the local Board of Review procedures and deadlines. For payment dates, installment options, or escrow questions, check the actual bill and contact the treasurer or mortgage servicer as appropriate.
Key takeaways
- Use taxable value and the applicable rate for the address and exemption status.
- Budget for possible uncapping in the year after purchase.
- Verify special assessments, exemptions, and the parcel’s current bill locally.
Frequently asked questions
How are Oakland County property taxes calculated?
Multiply the property’s taxable value by the applicable combined millage and divide by 1,000. Check the bill separately for special assessments or other charges.
What happens to taxable value after a home purchase?
After a qualifying transfer, taxable value generally uncaps to the property’s state equalized value for the following calendar year. Some transfers are exempt.
Does the Principal Residence Exemption remove all property taxes?
No. Michigan’s Principal Residence Exemption can exempt a qualifying home from local school operating millage, up to 18 mills. Other applicable taxes still apply.
Where can I estimate a future property tax bill?
Use Michigan Treasury’s property tax estimator as a starting point, then confirm the expected taxable value, applicable millage and any special assessments with the local assessor or treasurer.
Recommended reading
Oakland County November millage results
What it costs to sell a home in Oakland County
Tom Gilliam | RE/MAX Classic
29630 Orchard Lake Rd, Farmington Hills, MI 48334
Tom reports 24 years of Oakland County experience, 700+ closed transactions, Top 1% recognition, and more than 100 reviews.
Discuss your home search or sale with Tom at 248-790-5594.
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