What's new in the numbers
Every changing figure on this site lives in a versioned rule pack with the official source it came from and the date someone opened that source. This page is generated from those packs — not written by hand — so it cannot drift from what the calculators actually use.
- Verified rule packs
- 63
- Awaiting publication
- 10
- Sources cited
- 63
Most recently checked
The date is when someone opened the official document and transcribed the figures — not when the page was last edited.
Scheduled to change next
Each pack carries the date its figures are due for re-checking. These are the next ones up — county appeal deadlines every January through March, guideline formulas and statutory requirements on an annual pass.
- negligence-caps-mdOctober 1, 2026
Where the figures come from
- State legislatures (statute text)54
- State judiciaries (rules & worksheets)4
- County assessing authorities4
- State revenue departments1
What we have not published, and why
10 packs could not be verified against an official source — usually because the statute or worksheet was not reachable, or the body publishes no current figure. Those ship empty and earn no page rather than carrying a guess, so a missing state here means a missing page, not a wrong number.
- negligence-caps-al
- negligence-caps-ga
- negligence-caps-mn
- negligence-caps-nc
- negligence-caps-ny
- will-requirements-ga
- will-requirements-mi
- will-requirements-nc
- will-requirements-oh
- property-tax-appeal-tx-tarrant
Every pack is published as raw JSON at /developers and listed with its source on /sources.
Change alerts — one email when a state revises a guideline, cap, or deadline
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