Assessment increase: what it means.
A home whose county value rose 15 percent or more at the last reassessment. A big jump in value means a bigger tax bill the next year. LeadCounty counts it in every county that has the records and refreshes the counts weekly.
Homes with a large assessment increase by county
| County | Homes with a large assessment increase |
|---|---|
| St. Louis County, MO | 333,755 |
| Summit County, OH | 127,702 |
| Harris County, TX | 66,687 |
| Medina County, OH | 52,052 |
| Clermont County, OH | 47,250 |
| Fairfield County, OH | 47,034 |
| Greene County, OH | 43,528 |
| Clark County, OH | 43,456 |
| Collin County, TX | 30,317 |
| Dallas County, TX | 28,776 |
| Fort Bend County, TX | 24,527 |
| Denton County, TX | 21,444 |
| El Paso County, TX | 17,614 |
| Union County, OH | 17,456 |
| Tarrant County, TX | 12,027 |
| Butler County, OH | 9,331 |
| Franklin County, OH | 6,485 |
| Cuyahoga County, OH | 4,370 |
| Delaware County, OH | 3,136 |
| Hamilton County, OH | 1,692 |
| Lorain County, OH | 977 |
| Lucas County, OH | 924 |
| Wayne County, OH | 491 |
| Lake County, OH | 483 |
Why it matters
A big jump in value means a bigger tax bill the next year. Owners notice, and many are open to a conversation about an appeal, a sale or a payment plan.
Where it shows up in public records
The county's value for the home in the current and the previous valuation year, from the county auditor or assessor.
How to use it
- Agents: a jump is a natural reason to ask an owner whether they have thought about selling at the new value.
- Appeal consultants: owners with a jump and an over-assessed flag are the best leads.
Tax-appeal list
- The full list for your county, with owner mailing addresses
- Stack it with other lists to find owners with several reasons
- Export one row per property to Excel or CSV
Related signals
Questions about assessment increase
Does a big increase mean the home is over-assessed?
Not by itself. It means the value moved a lot. The over-assessed list adds a comparison with recent sales.
Which counties have it?
Counties where the value history for at least two years is in the county files.
How often is it updated?
When the county publishes new values, usually once a year; the counts are refreshed weekly.
Find every home with a large assessment increase in your county.
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