Case Number Date vs Closing Date: The FHA Scoring Switch Nobody Explains

The Date That Actually Controls Your Score Model

If you've been following the FHA alternative credit score rollout, you already know the headline: VantageScore 4.0 and the 10T model are joining Classic FICO as acceptable scoring options. What doesn't get explained clearly enough is which date actually triggers the change for your file.

It's not your closing date. It's not your application date. It's your FHA case number assignment date.

What the Guide Actually Says

HUD's FHA Alternative Credit Scores Preparedness Guide states it plainly: "Beginning with case numbers assigned on or after January 1, 2027, FHA will accept V4 and 10T credit score models in addition to Classic. All borrowers on a loan must be scored using the same credit score model(s)."

Read that twice if you're planning a transaction near the start of 2027. A file can close well into the new year and still be governed by the old Classic-only rule, simply because the case number was pulled before January 1. Conversely, a file could close later than expected and still fall under the new window if the case number lands on or after that date.

The Co-Borrower Detail Buyers Skip

The second half of that sentence matters just as much as the first. Every borrower on a loan has to be scored using the same model. If you're applying with a co-borrower, you can't have one person evaluated under Classic and the other under VantageScore 4.0 on the same application. The lender picks a consistent model for everyone on the loan, based on what the case number date allows.

This matters most for borrowers with limited traditional credit history, where an alternative scoring model might reflect a fuller picture than Classic alone. If one borrower on a joint application would benefit from alternative scoring but the case number date doesn't permit it, that benefit doesn't apply to either borrower.

A Common Scenario

A situation that comes up often is a buyer locking in a contract in late 2026 with a closing planned for January of 2027, assuming the new rules will automatically apply because the closing falls after the new year. That assumption can be wrong. The case number is frequently assigned well before closing, sometimes before the buyer has even fully shopped lenders, which means the scoring model may already be locked in under the old framework before the buyer realizes it.

What to Ask Your Lender Today

If you're an FHA buyer with a closing anywhere near this transition window, ask your lender directly how the case number date affects which score model applies to your file. Get the actual date your case number was or will be assigned, not just your anticipated closing date. That single question can clarify your entire qualifying picture well before underwriting starts.

I'm Jason Sharon, a licensed mortgage broker with Home Loans Inc, and I track this timing on every FHA file I work. If your closing is approaching this window, reach out and let's walk through exactly where your case number falls.