Keeping the Exemption on Both Michigan Homes
Program and regulatory figures verified September 19, 2026. Details change; confirm your scenario with us.
This is the most generous buy-before-you-sell provision in any state we build for, and the most unforgiving about one specific decision.
What it does
Ordinarily a principal residence exemption follows your principal residence, one at a time. MCL 211.7cc(5) creates an exception for exactly the situation this site is about: you have bought and moved into a new home while the old one is still on the market.
In that case you may retain the exemption on the previous home for not more than three tax years, while simultaneously claiming it on the new one. You file the conditional rescission form, Michigan Treasury Form 4640, with the local tax collecting unit within the statutory period.
Three years is a long runway. In a state where Grand Rapids goes pending in 22 days and every tracked metro beats the national benchmark, most owners will never need the second year, let alone the third.
The four conditions
All of them, continuously. The previous property must be:
- Not occupied. Not by you, not by family, not by anyone.
- For sale. Genuinely on the market, not held back.
- Not leased. The decisive one, covered below.
- Not used for any business or commercial purpose.
And you must verify annually by December 31 that they still hold. If you do not, the statute says the assessor shall deny the exemption. Not may. Shall.
The lease clause, and why we lead with it
Here is the sentence that changes how a Michigan file gets structured: if property subject to a conditional rescission is leased, the local tax collecting unit shall deny that conditional rescission, and that denial is retroactive and is effective on December 31 of the year immediately preceding the year in which the property is leased.
Retroactive. Not from the day the tenant moves in, but from the December 31 before.
So an owner who holds the home for sale through the spring, gives up in August and signs a tenant loses the exemption for that entire tax year, not just the remaining months. The decision looks reversible and is not.
This is why we raise it at the first conversation rather than the fifth. Renting the departing home is a legitimate structure and sometimes the right one. In Michigan it is a decision with a dated tax consequence attached, and it should be made deliberately rather than as a fallback when the listing gets tired.
What it changes about the plan
It makes the two ownership-retaining structures fit neatly and the third one expensive.
Carrying both payments and recasting after the sale is perfectly compatible: the old home stays vacant and listed, exactly as the statute requires. Borrowing against the departing home's equity is equally compatible, since a lien does not make the property occupied, leased or commercial.
Converting to a rental is the one that collides. If the numbers genuinely point there, it can still be right, but it should be priced with the lost exemption included rather than treated as free optionality. See the rental conversion page.
Who decides this
Your local assessor administers the exemption and processes Form 4640, and your CPA or a Michigan attorney is the right place for eligibility questions. We are lenders. We raise it because it sits inside the payment we underwrite on two properties at once, and because nobody else in the transaction is looking at both.
See how it interacts with the structures on the structures page.
Exemption eligibility, conditional rescission filings and uncapping questions are legal and tax matters. Your local assessor, your CPA or a Michigan attorney own those answers. We flag them because they change the numbers we underwrite.
Frequently asked questions
How long can I keep the exemption on my old Michigan home?
Not more than 3 tax years, under MCL 211.7cc(5), provided the home remains not occupied, for sale, not leased and not used for any business or commercial purpose, and you verify annually by December 31.
What is Form 4640?
The Michigan Department of Treasury's Conditional Rescission of Principal Residence Exemption form. You file it with your local tax collecting unit to claim the exemption on a previous principal residence while also claiming it on your new one.
Can I rent out the old house and keep the exemption?
No. MCL 211.7cc(5) provides that if the property is leased, the local tax collecting unit shall deny the conditional rescission, and the denial is retroactive to December 31 of the year immediately preceding the lease. Selling and renting are mutually exclusive on a property carrying a rescission.
Do I have to do anything each year to keep it?
Yes. You must annually verify by December 31 that the property is still unoccupied, for sale, unleased and not used commercially. If you do not, the statute directs the assessor to deny the exemption.
Mike Certo · NMLS #260555 · Cornerstone First Mortgage NMLS #173855 · Equal Housing Lender. Educational content about financing, not a loan commitment and not legal, tax, or real estate advice. Principal residence exemption eligibility and conditional rescission rules depend on your facts; your local assessor, your CPA or a Michigan attorney, and your real estate agent each handle their own part. Loans are subject to borrower and property qualification.