The 3-Minute Ratio Study That Could Save Your Next Board Meeting

Free for assessors—no credit card, no demo call, no nonsense.

  • This Year's Stats— COD, PRD, PRB, median ratio, plus the new Vertical Equity Indicator from IAAO's exposure draft.
  • Lawsuit Repellent — Spots regressive patterns before plaintiffs' attorneys do.
  • Charts for Clarity — Clear, actionable charts that translate your technical work into visuals everyone understands.
  • IAAO-Aligned — The same methodology oversight agencies use.
  • Why free? — Budget season's coming. You'll remember who got you home for dinner.

Unlocking will give you access to the tool immediately.
No upload. No cloud. Your data stays on your machine. Period.

The Standards Are Changing

IAAO's ratio study standard hadn't been updated since 2013. The 2025 exposure draft is a complete rewrite—new COD thresholds, VEI as the primary equity test, tighter oversight guidance.

Meanwhile, equity lawsuits are hitting front pages from coast to coast.
Courts are citing IAAO standards by name.

"We didn't know" isn't a defense anymore.


What You'll Get

Get a full ratio study in ~3 minutes.

Your data never leaves your computer. No upload. No cloud. Your file stays in your browser—we never see it.

  • All the statistics: COD, PRD, PRB, median, mean, weighted mean
  • Vertical Equity Indicator (VEI)—most offices haven't run this yet
  • Ratio distribution and outlier detection
  • Interactive value-vs-sale-price charts
  • Box plots ready for any hearing room

Not a teaser. Not a sample. The real thing.

What This Isn't

Free trial that locks your data after 7 days

Bait-and-switch into a sales call

Generic dashboard from people who've never heard of USPAP

Built by people who've sat in your chair.


Why We're Giving This Away

We're Valuebase. We make valuation, visualization, and AI tools for assessors so they can get stuff done fast. We know your procurement takes 11 months and your budget's already spoken for.
So we're not asking for money—we're asking for 3 minutes.

Run your study. See if we know what we're doing.

When you need help with your next reassessment, you'll know who to call.


P.S. — The commissioners won't wait. The reporters won't wait. The plaintiffs' attorneys definitely won't wait. Your ratio study takes 3 minutes.