An FHA non-occupying co-borrower shares ownership and responsibility for the mortgage without making the home their principal residence. Adding one generally caps financing at 75% loan-to-value (LTV). A qualifying family relationship can allow up to 96.5% financing, but the property's unit count and certain family sales can rule out that higher limit. Confirm those details before assuming a 3.5% down payment. HUD Handbook 4000.1

This guide covers standard FHA purchases as of October 4, 2026. HUD's August 12, 2026 handbook update retains a February 16, 2021 effective date for the LTV section, II.A.2.b. Publication of an update does not give every provision a new effective date. HUD's dated update

How the FHA 75 percent LTV rule works

The family-member exception is only one part of the calculation. HUD requires lenders to use the lowest applicable LTV percentage. The table shows the ceilings under the non-occupying borrower rule; other applicable limits can reduce them. Handbook LTV requirements

The controlling provision is II.A.2.b.ii(B), LTV Limitations Based on Non-Occupying Borrower Status. Approval still depends on credit, income and other underwriting requirements, even when the family-member exception applies. HUD's rule and exclusions

FHA calculates LTV by dividing the base loan amount, which excludes financed upfront mortgage insurance, by the property's adjusted value. For an ordinary purchase, adjusted value is the lower of the appraised value or the purchase price after subtracting any inducements to purchase. A higher appraisal therefore does not automatically reduce the required contribution. HUD glossary

When family members can qualify for higher financing

For example, a one-unit purchase from an unrelated seller, with a parent helping an adult child as a non-occupying co-borrower, may qualify for the family exception.

HUD's family-member definition also includes grandparents, siblings, aunts, uncles, spouses and domestic partners, along with specified step, foster, adoptive and in-law relationships. Compare the precise relationship with the handbook's family-member definition; a longstanding friendship alone is not listed.

The sale itself needs a separate review. HUD excludes a family member selling to a family member who will be a non-occupying co-borrower. In a hypothetical example, a grandmother sells a house to her daughter and granddaughter. The granddaughter will live there; the daughter will be a non-occupying co-borrower. That arrangement falls within the family-sale exclusion even though the borrowers are related. Family-sale exclusion

Family sales can also raise a separate FHA restriction for transactions between related parties, called an identity of interest, which has its own exceptions. Have the lender review the seller's relationship to every purchaser under both rules. Identity-of-interest requirements

What changes for a duplex, triplex or fourplex?

The higher-financing exception is unavailable for a two-to-four-unit purchase involving a non-occupying borrower. A parent living elsewhere does not preserve 96.5% financing when the child buys a duplex, even if the child occupies one unit. HUD's property-unit exclusion

If all borrowers will occupy the property, this particular non-occupying borrower restriction does not apply. Three- and four-unit properties also have a separate rental-income self-sufficiency requirement; adding a family borrower does not remove it. HUD property requirements

Co-borrower, cosigner or gift donor?

A co-borrower takes title, owes the mortgage debt and signs the documents securing the loan against the property. Living elsewhere does not remove those obligations.

A cosigner owes the debt and signs the note but does not hold an ownership interest or sign the security instrument. When asking a parent to cosign, have the lender identify the parent's actual role and applicable financing restrictions in writing. HUD ownership and signature requirements

A gift donor provides cash or equity without expecting repayment. HUD gift definition Giving money alone does not make the donor a borrower or allow the buyer to count the donor's salary as their own income. If the obstacle is available cash, ask whether a documented gift would address it without adding another borrower; see our FHA gift-funds documentation guide.

What the financing limit means in dollars

Consider a hypothetical $300,000 purchase with an equal appraisal, no inducements to purchase and no secondary financing. Assume the application otherwise qualifies for the maximum financing available to its structure.

For a qualifying one-unit purchase with a parent as a non-occupying co-borrower, 96.5% financing produces a $289,500 base loan, leaving $10,500 of the price to fund. Change the property to a duplex while keeping that borrower arrangement: at 75%, the base loan is $225,000, leaving $75,000.

That is a $64,500 difference, before closing costs and mortgage-insurance treatment. These calculations apply the handbook's financing limits to the stated assumptions; they illustrate the price gap, not the final amount due at settlement.

The Loan Estimate's cash-to-close calculation adds closing costs and accounts for deposits, seller credits and other adjustments. If the proposed structure leaves an unaffordable gap, compare other mortgage program requirements before committing to a contract.

Build the file before quoting minimum cash

Use these checks alongside our homebuying guides:

1. Identify each person's role. Reconcile the application, intended ownership and occupancy: occupying borrower, non-occupying co-borrower, cosigner or donor.
2. Establish the relationship. Ask what evidence the lender accepts for the precise relationship listed in HUD's definition.
3. Confirm the unit count. Use the appraisal and the lender's property classification.
4. Check the seller's relationships. Review the contract and title information for the family-sale exclusion and any separate identity-of-interest restriction.
5. Record the calculation. Ask the loan officer to identify the controlling handbook section and show the applicable LTV, adjusted value, base loan amount and estimated cash to close.

Have an FHA-experienced loan officer or underwriter confirm the structure before relying on a minimum-cash quote. Keep that written decision with the supporting documents so a change in the property, seller or borrowers prompts a fresh calculation.