Home Appraisal Costs Will Rise by May 2027

New reporting standards will increase closing costs and processing time for homeowners securing a mortgage.

Updated on Oct. 14, 2026 in Residential

Home Appraisal Costs Will Rise by May 2027

Live Poll

Should lenders prioritize modernizing appraisal systems despite the higher costs passed on to home buyers?

Fannie Mae and Freddie Mac have mandated a transition to the Uniform Appraisal Dataset 3.6, which will become the exclusive requirement for mortgage appraisals by May 2027. This shift will impact nearly all homebuyers across the United States as lenders move away from older, less expensive reporting frameworks.

Why it matters

The new reporting standards require more granular data collection, which supports broader use of hybrid appraisals and automated waivers. While this change aims to modernize the mortgage process, it adds upfront costs and potential delays to the home-buying timeline.

Modernized UAD 3.6 reports are expected to cost approximately $850, compared to $550 for older versions. Additionally, the new data requirements add an extra three to five days to the standard processing and delivery timeline for mortgage files.

The players

Fannie Mae

A government-sponsored enterprise that supports liquidity in the mortgage market by purchasing home loans from lenders.

Freddie Mac

A government-sponsored enterprise that works alongside Fannie Mae to provide stability and affordability to the U.S. housing market.

Michael Farrell

The president of the National Association of Mortgage Brokers who represents the interests of loan originators during market shifts.

The details

The new UAD 3.6 framework forces appraisers to adopt updated data fields and requires more time conducting on-site property inspections. By requiring more comprehensive digital information, the GSEs aim to integrate appraisal data into more automated workflows. Lenders must adopt these standards to maintain eligibility, though the transition period until May 2027 allows for a dual-track system.

November 2025: GSEs began limited acceptance of UAD 3.6 files.
September 2026: GSEs announced a limited extension for mandatory adoption.
October 2026: Michael Farrell became NAMB president.
Spring 2027: The dual-track appraisal period concludes.
May 2027: Mandatory UAD 3.6 implementation takes effect for lenders granted waivers.

The Home Front

This transition marks the most significant update to property valuation standards since the original implementation of the Uniform Appraisal Dataset. The shift reflects a broader market trend toward replacing traditional manual appraisals with data-intensive hybrid models and automated waivers.

If you are planning to purchase or refinance a home before May 2027, ask your lender if your appraisal will fall under the new UAD 3.6 guidelines. Anticipate higher closing costs in your budget and build an additional week into your mortgage processing timeline to account for the new data standards.

The takeaway

The move to UAD 3.6 appraisals will ultimately standardize property valuation data, though it brings higher upfront costs for borrowers. Keep a copy of your full appraisal report in your home financing files, as the increased data density may provide a more detailed record of your property's condition.