What Actually Kills a Fix-and-Flip File in Underwriting
A file with this shape turns up constantly: $210,000 purchase, $65,000 rehab, contract signed, term sheet issued at 85% of purchase and 100% of rehab. It comes apart on day twelve. Not credit, not experience — the appraiser’s after-repair value lands $40,000 under the number the deal was built on, and the borrower does not have the difference in cash.
That is the shape of most fix-and-flip failures. The file is rarely declined. It gets re-sized, late, and you have four days to produce money you never planned to spend. Here is what actually does it.
One: the ARV comes in low, and the loan shrinks twice
Your loan is sized against two ceilings and you get the lower of them. Loan-to-cost caps the total against what you are into the property for. Loan-to-ARV caps it against what the finished house is worth. Published market guidance puts LTC around 80–90% and LTARV around 65–75%, with the exact pair set by your experience and the file.
On the deal above — $210,000 purchase, $65,000 rehab, $275,000 all-in, a $360,000 ARV — the requested loan is $178,500 against purchase plus $65,000 of rehab in draws, so $243,500. That is 88.5% of cost and 67.6% of ARV. Both ceilings clear. Then the appraisal comes back at $320,000.
| As underwritten | After appraisal | |
|---|---|---|
| ARV | $360,000 | $320,000 |
| Ceiling at 70% LTARV | $252,000 | $224,000 |
| Loan requested | $243,500 | $243,500 |
| Loan approved | $243,500 | $224,000 |
| Cash at closing, before points and fees | $31,500 | $51,000 |
An 11% miss on value produced a 62% increase in the cash you have to bring. Worse, the cut usually lands on the rehab holdback rather than the acquisition advance, because the lender protects its position at purchase first. You lose construction money, which is the money you cannot do without.
The fix is unglamorous and it works: before you go under contract, pull three closed sales that support your ARV — same submarket, ideally inside a mile, inside twelve months, similar finish level — and put them in the file. An appraiser who has to find the comps alone will find conservative ones.
Two: reserves, the number nobody budgets for
Underwriters test whether you can carry the project, not just close it. Published guidance across the market runs to roughly three months of holding costs as a floor, six as standard, and nine to twelve on heavy rehab. Most investors budget the down payment and stop.
| Line | Monthly |
|---|---|
| Interest on roughly $200,000 drawn, at 11.5% | $1,917 |
| Property taxes | $350 |
| Builder’s risk and vacant-property insurance | $180 |
| Utilities, kept live for the crew and the inspector | $120 |
| Total | $2,567 |
Six months of that is $15,400 that has to be visible in a statement, on top of your $31,500 down payment, your points, and your title costs. Interest accrues on the drawn balance, so it climbs through the project as draws release — the figure above is an average, not a starting point.
Three: the scope of work is a document, not a number
“$65,000 rehab” is not a scope of work. The draw schedule is built off the line items, so a single lump sum means the first draw request has nothing to be measured against, and it gets held while you assemble what should have been in the file at submission.
What survives review: line items with quantities and costs, a contractor bid on letterhead, and a permit line for anything structural, electrical, plumbing or mechanical. A scope that moves a load-bearing wall with no permit allowance tells an underwriter the budget is incomplete, and they will price the unknown by cutting the holdback.
Four: the exit nobody underwrote
This is the one that gets skipped, and it is federal law rather than a lender preference.
Your buyer’s financing is not your loan, but it is your timeline. Under HUD’s property flipping rule at 24 CFR 203.37a, a property you have owned for 90 days or fewer is not eligible for FHA-insured financing at all. The clock runs from the date your deed was recorded to the date the resale contract is signed — not to closing. A contract executed on day 88 kills an FHA buyer’s loan no matter when settlement would have happened.
Between day 91 and day 180 the property is eligible, but if your resale price is 100% or more above what you paid, a second independent appraisal is mandatory, and where the second comes in more than 5% below the first, the lower value governs the buyer’s loan amount.
Run that against the example. You bought at $210,000, so the second-appraisal trigger sits at a resale of $420,000 inside six months. At a $360,000 ARV you are 71% over acquisition and clear of it. Buy the same house at $170,000 and sell at $360,000 in month five, and you are 112% over — a second appraisal, a delay, and a real chance the number moves.
So a cosmetic 60-day flip priced into a first-time-buyer band has a narrower pool of buyers than the spreadsheet assumes. As of September 2026 the rule is unchanged; FHA leadership signalled interest in eliminating it in May 2026, but nothing has been published in the Federal Register. Separately, some conventional lenders apply their own title-seasoning overlays on the buyer’s side — those vary, and they are worth asking about before you set a listing date.
The boring things that stall files
- Vesting mismatch. Contract signed in your personal name, loan closing to an LLC. That needs an assignment or an amended contract, and some sellers will not sign one.
- A prior project in default inside 24 months. Commonly disclosed late, and it re-prices the whole file when it surfaces.
- Title. Open permits, unpermitted additions and old mechanic’s liens are found at title search, not at term sheet.
When this is the wrong call
When the answer is more leverage. If the deal only works at 90% LTC and 75% LTARV, it does not have enough margin to absorb an appraisal miss, a permit delay, or a contractor walking. There is no second layer of financing available to close a gap like this inside these programs, and a shortfall of that size is a signal about the deal rather than a financing problem to be solved. If the $19,500 re-size above would have erased your profit, the correct response is to walk, not to fund the gap.
When you want to push back on the value. A reconsideration of value supported by genuinely better comps is worth filing. One supported by weaker comps tells the underwriter your original number was optimistic, and it tends to cost you more than the appraisal did.
When it is the wrong instrument entirely. If you intend to keep the property, a short-term rehab loan followed by a refinance is two sets of costs where one would do. If the plan involves entitlement or building from the ground, that is a different program with a different draw structure.
Where this fits
The fix and flip program page covers how these loans are structured, and the rates page has current indicative pricing across everything we place, sources included. If you want a read on whether a specific file survives underwriting, send it over — purchase price, rehab budget, your comps and your intended exit is enough. We are compensated by the lender when a transaction closes, so it costs nothing to find out where a deal stands.
Easy Lending USA is a referral service, not a lender. All figures here are arithmetic on stated assumptions, indicative only, and not an offer of credit. Financing discussed is business-purpose, secured by non-owner-occupied investment property and made to business entities. Actual terms are set by the lender that underwrites your file and are subject to underwriting.