90 Day Ban: FHA Flip Rule Appraisal Checks for U.S. Buyers & Lenders

If a property sold within the last 90 days, FHA will not insure your mortgage on it, period. If the seller’s ownership falls between 91 and 180 days and the resale price is at least double what they paid, expect a second, independent appraisal before your loan closes. The lender pays for that appraisal, never you.

TL;DR:

• FHA financing is fully banned for properties resold within 90 days of the seller’s acquisition date.
• If the sale occurs between 91 and 180 days and the resale price exceeds the original purchase price by 100% or more, a second appraisal is triggered.
• The second appraisal must be ordered from a different appraiser, include a full interior inspection, and is paid for by the lender at no cost to the borrower.
• Verifying the deed date before writing an offer is crucial to avoid flip rule violations and appraisal issues later in the process.
• Certain sales, like those by HUD or in disaster areas, are automatically exempt from the flip rule, but documentation must confirm eligibility.

Table of Contents

• Understanding the FHA Flip Rule Appraisal Requirement
• Which Dates Actually Count Toward the 90-Day and 180-Day Windows
• When the Lender Must Order a Second Appraisal, and Who Pays
• What Happens When the Two Appraisals Don’t Match
• Documents That Support a Legitimate Price Increase
• Sales That Skip the Flip Rule Entirely
• Action Steps Before You Sign or Underwrite
• Spotting Flip Risk Before You Get to the Appraisal Stage
• One Priority to Get Right First
• Check Flip Risk Before You Sign, Not After the Appraisal Surprises You
• Where to Verify the Official Rules Yourself
• Sources
• FAQ

Understanding the FHA Flip Rule Appraisal Requirement

The FHA flip rule appraisal requirement traces directly to 24 CFR §203.37a, the federal regulation governing property resales financed with FHA-insured mortgages. The rule bans FHA financing outright for homes resold within 90 days of the seller’s acquisition date. Between 91 and 180 days, the deal stays eligible, but it triggers a documentation requirement, usually a second appraisal, when the resale price hits 100% or more over what the seller originally paid.

HUD built flexibility into this system. The 2003 Federal Register final rule that created these thresholds also gives HUD authority to require additional documentation on resales up to 12 months old, and to adjust the triggering percentage through future notices rather than a full rulemaking process. That means the 100% threshold you read about today could shift if HUD issues new guidance.

Which Dates Actually Count Toward the 90-Day and 180-Day Windows

Day zero starts on the date the seller acquired the property, as recorded on the deed, not the date they listed it or started renovations. HUD counts forward from that deed date to your contract execution date, not your closing date, when determining whether you fall inside the 90-day ban or the 91-180 day documentation window.

Case-number assignment matters too. Your lender cannot assign the FHA case number before day 91 if the deal falls in that gap, since an early assignment would effectively finance a straight flip inside the banned window.

Here’s a quick example: a seller closes on a distressed property on January 1. If your contract gets signed on February 15 (day 45), FHA financing is off the table entirely. If your contract date lands on May 5 (day 125) instead, you’re in the documentation zone, and a large price jump will likely trigger that second appraisal.

When the Lender Must Order a Second Appraisal, and Who Pays

Once you’re inside the 91 to 180 day window, a resale price at or above 100% of the seller’s purchase price triggers the additional review. HUD retains authority to move that threshold within a broader range, so lenders track Federal Register updates rather than treating 100% as permanently fixed.

The second appraisal has to come from a different appraiser than the first, and it must include a full interior inspection, not a drive-by. Some lenders order a second appraisal voluntarily even outside the mandatory window, simply as an underwriting safeguard on a deal that looks aggressive.

On payment, the rule is unambiguous. CFPB guidance confirms the lender covers the cost of any required second appraisal, and the borrower cannot be charged for it. A lender that tries to pass that fee to you isn’t just breaking a norm, it’s creating a compliance problem that the CFPB will act on if reported.

What Happens When the Two Appraisals Don’t Match

That gap doesn’t disappear. It becomes your problem to solve.

You’ve got a handful of realistic options at that point. You can renegotiate the purchase price down to match the lower appraisal, bring extra cash to closing to cover the difference between the appraised value and the contract price, switch to a different loan product entirely, or walk away if your contract includes an appraisal contingency. Buyers who’ve hit appraisal gaps before know the second option gets expensive fast, which is why understanding how appraisal gaps work in BRRRR deals before you sign anything saves real stress later.

Documents That Support a Legitimate Price Increase

Lenders don’t automatically assume a resale price jump means fraud. Solid paperwork can support a genuine value increase and, in some cases, reduce reliance on a second appraisal alone.

• Itemized contractor invoices showing exactly what work was done and what it cost
• Building permits pulled for the renovation, matched to the scope of work
• Before-and-after photos documenting the property’s condition at each stage
• Signed contractor contracts establishing the agreed rehab scope
• A 12-month chain-of-title showing clean, verifiable ownership history

When rehab evidence is thorough and the numbers add up, underwriters weigh it alongside the appraisal rather than leaning on the second appraisal as the sole check on value. Sellers and agents who assemble this file before listing move deals through underwriting noticeably faster.

Pro Tip: Ask the seller for permits and paid invoices before you even sign the contract. A rehab that looks legitimate on Instagram but has no permit trail is a red flag lenders will catch anyway, so you’re better off catching it first.

Sales That Skip the Flip Rule Entirely

Several transaction types are automatically exempt from the flip rule review. These include sales by HUD, Fannie Mae, Freddie Mac, or other federal agencies; sales by HUD-approved nonprofits; REO (bank-owned) properties; inherited properties; employer or relocation-driven sales; and homes in Presidentially declared disaster areas. HUD’s appraisal logging guidance treats several of these, including REO sales and proposed or under-construction properties, as automatic exemptions that get flagged accordingly in the agency’s case-tracking systems. Your loan file still needs documentation proving the exemption applies, such as an REO sale agreement or probate paperwork.

Action Steps Before You Sign or Underwrite

1. Buyers: confirm the seller’s deed date and calculate your contract date against it before you get emotionally attached to a property.
2. Buyers: request rehab documentation, permits, and invoices from the listing agent upfront rather than after your loan is already in process.
3. Buyers: build a financing contingency into your contract tied specifically to FHA eligibility and appraised value.
4. Lenders: pull the chain-of-title early and order the independent second appraisal as soon as the 91-180 day trigger is confirmed.
5. Lenders: log every flip-eligible case properly in appraisal logging systems and gather exemption paperwork the moment an exemption applies.

If a second appraisal comes back low, move fast. Renegotiate, arrange bridge funds, or explore flip deal analysis methods to see if the numbers still work at a reduced loan amount before the deal falls apart from delay alone.

Spotting Flip Risk Before You Get to the Appraisal Stage

Most flip-rule surprises trace back to one thing: nobody ran the numbers early enough. An ARV range estimate and a rehab-cost breakdown, generated before you write an offer, tell you whether a seller’s asking price is anywhere near double their purchase price, which flags 91-180 day deals headed toward a mandatory second appraisal before you’re locked into a contract.

Reports built from photo-based rehab estimates can give you a maximum allowable offer, a cost breakdown, and a before-and-after photo bundle to use as supporting documentation. That kind of file doesn’t replace the FHA appraisal or the lender’s underwriting decision. It just means you walk into the deal knowing where the risk sits instead of finding out at the worst possible moment, three weeks into escrow.

One Priority to Get Right First

If you take one thing from this, verify the seller’s deed date before you write an offer, not after. Renovations alone won’t satisfy a lender without paper behind them. Get permits and invoices in hand early, because scrambling for documentation after the case number is assigned costs you leverage and time you don’t get back.

— Sam

Check Flip Risk Before You Sign, Not After the Appraisal Surprises You

Most flip-rule headaches happen because nobody ran the price math before writing an offer.

The platform’s maximum allowable offer calculator and rehab cost breakdown turn into a report you can hand your lender alongside permits and invoices, the kind of file that supports a legitimate price increase instead of leaving your loan officer guessing. It won’t replace the FHA appraisal itself, but it tells you where you stand before you spend an option fee finding out. Run your next flip candidate through the free ARV and rehab calculator before you make an offer.

Where to Verify the Official Rules Yourself

• 24 CFR §203.37a for the current regulatory text
• HUD FHA program page for handbook references
• CFPB second-appraisal guidance for borrower protections
• Federal Register final rule for rulemaking history

Sources

• 24 CFR § 203.37a - Sale of property. | e-CFR | LII / Legal Information Institute
• Federal Register: Final rule on property flipping (May 2003)
• I was told I’m buying a home that was flipped and that I have to get a second appraisal. How does that work? | CFPB
• FHA appraisal logging guidance (Appraisal Logging Update - property flipping section)

FAQ

Does FHA Still Enforce the 90-Day Flip Rule?

Yes. FHA still bans insured financing on properties resold within 90 days of the seller’s acquisition date, and that ban remains active under 24 CFR §203.37a.

Who Pays for the Second Appraisal on an FHA Flip?

The lender pays. CFPB guidance confirms the borrower cannot be charged for a second appraisal required under the flip rule.

What Are the Main Exceptions to the FHA Flip Rule?

Common exemptions include sales by HUD, GSEs, or federal agencies, HUD-approved nonprofit sales, REO properties, inherited homes, employer relocation sales, and homes in Presidentially declared disaster areas.

Can Rehab Documentation Replace a Second Appraisal?

Not automatically, but thorough permits, invoices, and before-and-after photos give underwriters context that supports a legitimate price increase alongside the appraisal, rather than relying on the second appraisal alone.

Recommended

• Flip Deal Analysis: The Formulas That Decide Yes or No
• 70% Rule Calculator — Maximum Allowable Offer (MAO)
• Appraisal Waivers Investing: What Buyers Need to Know
• Free Fix and Flip Calculator — ARV, Rehab & Profit