Property Taxes Near Sleeping Bear Dunes: Proposal A, Explained

Two Different Numbers on Every Michigan Property

Every taxed property in Michigan carries two separate value figures: State Equalized Value (SEV), which is intended to represent roughly half of a property's true cash market value, and taxable value, the actual number your tax bill is calculated against. In most states these track closely together. In Michigan, because of a 1994 constitutional amendment known as Proposal A, they can diverge substantially over time for a property that hasn't changed hands -- and that divergence is the single most important thing a buyer here needs to understand before assuming last year's tax bill predicts next year's.

Leelanau County -- the county that includes Glen Arbor, Glen Haven, Empire, and the rest of this area -- administers this system the same way every Michigan county does, but the effects show up unusually visibly here because the market mixes decades-long local owners with recent, high-value vacation-home purchases in the same small geographic footprint.

Proposal A: Capped Growth for the Current Owner

Proposal A, approved by Michigan voters in 1994, caps how much a property's taxable value can increase in any single year while it stays under the same ownership: the lesser of the rate of inflation (measured by a statewide Consumer Price Index-based multiplier) or 5%, whichever is smaller. For the 2026 tax year, that inflation-rate multiplier limited taxable value growth to roughly 2.7% over 2025 for continuously owned properties, according to a property-tax industry guide -- meaning even in a year of double-digit home-price appreciation, a longtime owner's tax bill can only rise by that capped percentage, not by whatever the market did.

This is a real, powerful protection for long-term owners, and it's a major reason some Glen Arbor-area owners who have held property for decades pay tax bills that look dramatically low relative to current market value. It was designed explicitly to protect longtime residents, particularly older homeowners on fixed incomes, from being taxed out of homes that had appreciated sharply around them.

Uncapping: What Happens the Year After You Buy

The cap only protects continuous ownership. Under Proposal A, when a property transfers -- a sale, in almost all cases -- its taxable value 'uncaps' the following tax year and resets to match its current State Equalized Value, which reflects roughly half of the property's actual market value as assessed by the local unit. In practical terms: if you buy a Glen Arbor-area home from an owner who has held it for twenty years, your first full tax year as owner is very likely to bring a materially higher bill than the seller was paying on the identical house, even if nothing about the property itself changed.

This is a well-documented, structural feature of Michigan's tax system, not a Leelanau County quirk, and it explains why a listing's 'current taxes' figure is frequently a poor predictor of what a buyer will actually owe. Any serious buyer should ask the local assessor -- not the listing agent -- for an estimate of the post-sale, uncapped taxable value and resulting bill before finalizing an offer, since a five- or six-figure home-price difference between two comparable properties can sometimes be explained almost entirely by one seller's decades of capped ownership versus another's recent purchase.

The Principal Residence Exemption: For Occupied Homes, Not Cottages

Michigan's Principal Residence Exemption (PRE) exempts an owner's actual primary, owner-occupied residence from up to 18 mills of local school operating tax -- a meaningful reduction, since school operating millage is typically one of the largest single line items on a Michigan property tax bill. To claim it, an owner files form L-4013 with the local assessor, generally by June 1 for the summer tax cycle or November 1 for winter.

The critical point for this specific market: the PRE applies only to a property that is genuinely the owner's principal residence, not a seasonal cottage, vacation home, or short-term rental. Given how much of the Glen Arbor-area housing stock functions as a second home or investment rental rather than a year-round primary residence, a meaningful share of local property owners are simply not eligible for this exemption and pay the full local school operating millage on top of everything else -- a real, honest distinction worth understanding before assuming a neighbor's tax bill (who may be a year-round PRE-eligible resident) predicts your own as a second-home buyer.

What the Effective Rate Data Shows for This Area

Because Proposal A creates such a wide spread between long-held and recently sold properties, a single county-wide millage rate doesn't tell a buyer much on its own -- what matters more is the effective rate, meaning actual tax paid as a percentage of current market value, blended across a mix of owners. One property-tax data aggregator (Ownwell) put Leelanau County's median effective rate at roughly 0.63%, with Glen Arbor running the highest effective rate in the county at approximately 0.82% and Maple City the lowest at roughly 0.55%. Glen Arbor running higher than the county median is consistent with a market where a larger-than-average share of properties have recently sold and uncapped to full assessed value, rather than sitting with decades of capped growth.

This page does not state a specific millage rate (mills per $1,000 of taxable value) for Glen Arbor Township specifically, because the full combined rate -- township, county, school district, and any special assessments -- was not independently confirmed at a single, current, citable figure this research pass. Leelanau County's Equalization Department and the Glen Arbor Township assessor are the direct sources for a specific parcel's current millage and tax bill.

Appeals: The March Board of Review

Michigan property owners who believe their assessed value is inaccurate can appeal through their local township's March Board of Review, the standard statewide mechanism for contesting an assessment before the tax year is finalized. This page did not independently confirm Glen Arbor Township's specific current Board of Review dates, format (in-person versus written appeal), or recent appeal outcomes -- contact the township assessor directly for the current year's process and deadlines if you believe an assessment is inaccurate.

What a Buyer Should Actually Do

Before making an offer on any property in this market, ask the Leelanau County Equalization Department or the Glen Arbor Township assessor for the property's current State Equalized Value (not just its taxable value) and a realistic estimate of the post-sale, uncapped tax bill -- this is the single most useful number a Michigan property-tax system can give a buyer, and it is routinely different from what a listing sheet shows. If the property will be your genuine primary residence, confirm the Principal Residence Exemption filing deadlines and process directly with the assessor; if it will be a seasonal or rental property, budget for the full non-homestead school operating millage with no PRE offset.

This page does not state a specific current transfer tax rate for a Michigan real estate sale, nor does it state whether any additional millage (fire, road, library, or other special district) applies to a specific Glen Arbor-area parcel -- both genuinely vary by exact property and were not confirmed to a level this page is willing to state as settled fact. Confirm both directly with a Michigan title company or closing agent and the local township assessor before budgeting a total transaction and ownership cost.