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Is your building still warrantable?

As of January 4, 2027, Fannie Mae and Freddie Mac require condo associations to fund reserves at 15% of annual assessment income (up from 10%) for their units to qualify for conventional financing. A building that met the old standard can flip to non-warrantable without anything physically changing.

Enter your association's real numbers below. The tool shows the dollar gap, the cost per door, and the circular true-dues-increase: because the target is a percentage of dues, every dollar you raise pushes the 15% line higher, so the real cost runs above the headline figure.

The rule's denominator. Dues only, not total budget.
As a % of assessment income.
Used to split the cost per door.
Parking, retail, laundry. Real money the rule ignores.
Non-Warrantable

What the rule requires
Currently funding$50,000
Required at 15%$75,000
Annual gap (naive)$25,000
Per door$250/yr · ~$21/mo
What it actually costs circularity

True dues increase to hit 15%$29,412/yr
Per door$294/yr · ~$25/mo
Excluded from the test$0

The other path: a reserve study completed within three years can preserve warrantability by funding at the study's highest recommended level, tying the number to the building's actual engineering needs instead of a flat percentage. Baseline funding is no longer permitted, so a board loses the discretion to phase in.

Read the full breakdown of the 15% rule

Christian Kosko | NMLS# 1415795 | Fairway Independent Mortgage Corporation
NMLS# 2289 | Equal Housing Lender | Licensed in DC, MD, VA

This tool is for educational purposes only. It does not constitute a warrantability determination, rate quote, or loan approval. The 15% reserve standard comes from Fannie Mae Lender Letter LL-2026-03 and Freddie Mac Bulletin 2026-C. Warrantability is determined case by case and is subject to underwriting. Figures are illustrative.

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