UAD1727
FATALOfficial message text · Appendix H-1: UAD Compliance Rules — URAR, v1.5
The expiration date for the tax abatements or exemptions must include year and month (YYYY-MM format).
Fatal — a single unresolved Fatal makes the entire submission come back NOT SUCCESSFUL (UCDP Hard Stop 401).
What triggers UAD1727
The published rule logic, verbatim:
If TaxAbatementsOrExemptionsExpirationDate does not include year and month (YYYY-MM format)
- • Checked for the Subject property.
- • Required format: year and month, CCYY-MM (e.g., 2026-03).
- • Bound to MISMO data point
TaxAbatementsOrExemptionsExpirationDate (%PV%)at../VALUATION_ANALYSES/VALUATION_ANALYSIS/PROPERTIES/PROPERTY/PROPERTY_TAXES/PROPERTY_TAX/PROPERTY_TAX_EXEMPTIONS/PROPERTY_TAX_EXEMPTION/
How to fix it
On the URAR, this lives at: Project Information → Project Factors and Impact to Value / Marketability → Detail (%PV%). Complete or correct that field in your form software, regenerate the package, and re-check before submission.
Because this is a Fatal edit, do not submit until it is resolved — one Fatal bounces the whole package.
The free UADCheck inspection evaluates UAD1727 automatically — attach your package and see in seconds whether it fires.
Begin inspection →Related messages
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Source: Appendix H-1: UAD Compliance Rules — URAR, v1.5 (public GSE document). Verified against the published spreadsheet; not affiliated with Fannie Mae or Freddie Mac.