Co-Borrower Credit: Which Score Controls Your HELOC?

HELOC programs do not all select credit scores the same way when there are two borrowers. This can make a dramatic difference when one spouse has strong income and credit and the other has materially weaker credit. Understanding which score each program uses can determine whether you qualify — and at what terms.

How Each Program Selects the Credit Score

NFTYDoorPrimary/highest qualifying income earner

NFTYDoor's current structure generally uses the score of the primary or highest qualifying income earner. A lower-scoring co-borrower does not necessarily control the transaction if the higher-income borrower qualifies as the primary wage earner. This is a meaningful advantage for couples where one partner has strong income and credit and the other has weaker credit.

REMN HELIXPrimary wage earner (Equifax FICO 8)

HELIX uses Equifax FICO 8 of the primary wage earner as the representative score. The primary wage earner's score generally controls the credit tier and CLTV. A co-borrower with lower credit does not necessarily pull the transaction into a lower tier if the primary wage earner has strong credit.

FigurePrimary applicant focus

Figure's current core product generally focuses on the primary applicant's credit. The specific co-borrower credit treatment should be confirmed for current execution.

AvenExplicit minimums for both co-borrowers

Aven has explicit minimum credit requirements for both co-borrowers. A lower-scoring co-borrower can affect eligibility even if the primary borrower has strong credit. This is a meaningful distinction from programs that focus primarily on the primary wage earner.

DeephavenStandard credit review

Deephaven uses standard credit review. The specific co-borrower credit treatment should be confirmed for current execution and the specific credit tier being targeted.

A Practical Example

Consider a couple where one spouse earns $120,000 per year with a 740 credit score, and the other earns $30,000 per year with a 620 credit score. Under NFTYDoor or HELIX, the higher-income spouse's 740 score may control the transaction. Under Aven, the 620 score may create an eligibility issue or pull the transaction into a lower credit tier. The same couple may qualify for meaningfully different terms — or qualify with some programs and not others — based solely on how each program handles co-borrower credit.

See Which Programs Fit Your Situation

Morgan Hardy shops all five programs. Send him the basics once and he'll identify which are relevant for your property, income, and situation.

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Program information last reviewed: August 2026

HELOC guidelines change frequently. Co-borrower credit requirements and program availability may change without notice. This information is educational and is not a loan approval, commitment or guarantee.

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HELOC Shopper is operated by Morgan Hardy, NMLS #1906208, licensed through Foundation Mortgage. Licensed to originate mortgage loans in Tennessee, Texas, Florida, Georgia, North Carolina, South Carolina. This website is for informational and educational purposes. It is not a commitment to lend, a guarantee of qualification, or a guarantee of any particular rate, term, or program availability. HELOC underwriting guidelines change frequently. Program information shown on this site is an educational snapshot and may not reflect current guidelines at the time of application. Not all borrowers will qualify. All lending decisions are subject to lender approval.

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