Mantis Valuation Advisors · (941) 315-2727
State-certified general real estate appraiser RZ3609

What Is a Retrospective Appraisal and When Is One Required?

October 13, 2026•1 min read

Most people think of an appraisal as a current value opinion. But in many legal, tax, and financial situations, the relevant date of value is not today but a date in the past. That is where a retrospective appraisal comes in.

What Is a Retrospective Appraisal?

A retrospective appraisal establishes the market value of a property as of a specific historical date. The appraiser researches the market as it existed at that time — using sales data, market trends, and economic conditions from the relevant period — to develop a credible opinion of what the property was worth on that date.

Common Uses for Retrospective Appraisals

  • Date of death appraisals — Required for estate administration, probate, and establishing stepped-up basis for heirs

  • Divorce proceedings — When the date of separation or filing is the relevant date of value

  • IRS gift tax filings — To establish the value of property at the time it was gifted

  • Charitable contribution deductions — To document the value of real property donated to a qualified organization

  • Co-owner and partnership buyouts — When co-owners need a property's value as of a past date.

  • Property tax appeals — To establish value as of January 1 of the tax year

Mantis Valuation Advisors has extensive experience with retrospective appraisals throughout Southwest Florida. Contact us to discuss your situation.

Mike Petrone, MBA

State-certified general real estate appraiser RZ3609 serving Sarasota, Manatee, and Charlotte counties. MBA in Finance. Over 30 years of experience.

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