The Leelanau County tax map is available online as a free GIS-based Tax Parcel Viewer, with a companion property records portal on BS&A Online. Between the two, you can pull up any parcel in the county, see its boundaries on an aerial photo, and read the owner’s name, acreage, property classification, assessed value, and taxable value. Both tools are hosted through the Leelanau County Equalization Department.1Leelanau County. Leelanau County Equalization Department
How to Look Up a Parcel
Every parcel in the county has a unique ID that starts with the county prefix “45.” The full number looks like 45-001-000-000-00, but the county’s search tool asks you to drop the “45” and enter only the remaining digits in the pattern 000-000-000-00, dashes included.2Leelanau County. Property Search If you don’t have the number, you can also search by the street address or by the owner’s last name followed by a space and first initial.
The county property search page links to the assessment data where you can look up tax records, ownership history, and current values. BS&A Online, the portal used by many Michigan counties, offers additional search options including current tax records, delinquent tax records, and building department records.3BS&A Online. Leelanau County Both accept the same three search inputs: parcel number, address, or owner name.
What the GIS Tax Parcel Viewer Shows
The interactive viewer runs on ArcGIS and displays parcel boundaries overlaid on aerial imagery of the county.4Leelanau County. Leelanau County GIS Maps Zoom in to inspect individual lot lines, or zoom out to see how a property sits relative to roads, lakes, and neighboring tracts. The sidebar lets you toggle layers on and off, including aerial photography and topographic contours.
Click a parcel and a summary panel appears with the parcel number, owner name, acreage, property classification, and the current assessed and taxable values. One timing note worth knowing: the viewer’s data is refreshed after the March Board of Review each year, so recent sales or assessment corrections may not show up until that annual update. For the most current mid-year information, call the Equalization Department directly.
Reading the Assessment Numbers
The parcel record typically includes the full legal description used in deeds, the acreage, the current assessed value, the taxable value, and the property classification. Michigan sorts every parcel into one of several classes, including residential, agricultural, commercial, industrial, developmental, and timber-cutover, and the classification affects which millage rates apply.5Michigan Legislature. Michigan Compiled Laws 211.34c – Property Classification
The gap between assessed value and taxable value is where most people get confused. Under Michigan’s constitution, the assessed value is set at 50% of the property’s true cash value (essentially market value). The taxable value is the number your actual tax bill is based on, and for long-term owners it’s often lower than the assessed value because of Michigan’s Proposal A cap. Taxable value can rise each year by the lesser of 5% or the rate of inflation, no matter what the market does. When the property sells, the cap resets and the taxable value jumps to match the assessed value in the year following the sale.6Michigan Legislature. Michigan Compiled Laws 211.27a – Assessed and Taxable Value
If you’re a buyer, this is where the tax map earns its keep. A property owned by the same family for twenty years may show a taxable value well below 50% of what you’d pay for it today. Your first full tax bill will be calculated on the uncapped assessed value, not the seller’s capped taxable value. Comparing those two numbers on the parcel record gives you a rough preview of the jump.
The Lines on the Map Are Not Survey Lines
The parcel boundaries you see on the GIS viewer are approximate. They exist so the county can track who owns what for tax purposes. They are not survey-grade measurements of where your property legally begins and ends. County GIS portals routinely carry disclaimers to that effect, stating that the data cannot be used to produce survey-quality maps.
If you’re building a fence, siting a structure near a lot line, or working through a boundary dispute with a neighbor, the tax map is the wrong document. Only a licensed professional land surveyor can establish the legal line by pulling historical records, locating physical markers, and taking precise measurements. The tax map tells you roughly where the county thinks the line runs. A survey tells you where it actually is.
If the Numbers on the Map Look Wrong
Start by checking whether the underlying property data is right. Errors in acreage, square footage, or classification can inflate an assessment. Each township in Leelanau County has a Board of Review that meets in March to hear appeals of current-year assessed values, taxable values, and classifications. Additional sessions in July and December handle clerical corrections, principal residence exemptions, and poverty exemptions.7Leelanau Township. Board of Review
Most townships don’t require appointments for the March meetings. Bring comparable sales, photographs, or other evidence showing the assessed value exceeds 50% of actual market value. If the township board doesn’t resolve it, you can escalate to the Michigan Tax Tribunal. The annual assessment notice, which must show both the current and prior year’s taxable value and the tentative state equalized valuation, is the starting point for deciding whether an appeal is worth filing.8Michigan Legislature. Michigan Compiled Laws 211.24c – Notice of Increase in Tentative State Equalized Valuation or Tentative Taxable Value
Getting Help From the Equalization Department
For questions about a specific parcel, help using the online tools, or official copies of assessment records, the Leelanau County Equalization Department is at 8527 E. Government Center Dr., Suite 102, Suttons Bay, MI 49682. The office is open Monday through Friday, 9:00 a.m. to 5:00 p.m., and the phone number is 231-256-9823.1Leelanau County. Leelanau County Equalization Department