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Montgomery County Property Tax Appeal Guide

If your Montgomery County, MD property is over-assessed, you can appeal to lower your tax bill. Here are the deadlines, filing steps, and how often appeals succeed.

Appeal deadline
45 days from notice
Appeal success rate
43%
Effective tax rate
0.99%
How to file
Supervisor then Property Tax Assessment Appeal Board
Pre-fillable appeal form
County form required

How to appeal your assessment in Montgomery County

Compare your assessed value to recent comparable sales. If your home is assessed above market value, gather 3–6 comparable sales and file your appeal with Montgomery County before the deadline. A well-documented appeal with strong comps has the best chance of a reduction.

Check if you are over-assessed

Upload your assessment notice for an instant comparable-sales analysis, an over-assessment estimate, and a pre-filled appeal.

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For informational purposes only. Not legal, tax, or medical advice.

Montgomery County Property Tax Appeal Guide — Deadlines, Steps & Success Rate