Minimum Credit Score for a HELOC: Requirements, DTI, and What Gets You Approved

Most lenders require a minimum FICO score of 620 to 680 to qualify for a HELOC. But credit score is only one variable in home equity underwriting. Your debt-to-income ratio, CLTV, and income documentation all factor into whether you're approved — and what rate you get.

The Credit Score Tiers and What They Mean for Your Rate

HELOC lenders segment borrowers into rate tiers based on credit score. The difference between tiers is a permanent margin spread on every dollar you borrow:

With the Prime Rate at 6.75% in mid-2026, a 620-credit-score borrower might pay 9.75% while an 800-score borrower pays 6.75%. On a $100,000 draw over 12 months, that difference is approximately $3,000 in extra interest.

The minimum isn't the goal — 740+ is. If your score is in the 650 to 700 range, improving it before applying can meaningfully reduce your lifetime borrowing cost.

Why DTI Often Matters More Than You Expect

Debt-to-income ratio is the primary metric lenders use to assess repayment capacity. The calculation:

(Monthly debt payments + proposed HELOC payment) ÷ gross monthly income = DTI

For HELOC qualification, the "proposed HELOC payment" is typically calculated as 1% to 2% of the maximum credit line per month (the fully amortized repayment scenario), not the interest-only draw-period minimum. This conservative calculation is intentional — lenders are qualifying you against the worst-case payment, not the teaser payment.

Standard DTI limits:

• Below 43%: Preferred, smooth approval
• 43–50%: Approved with compensating factors
• Above 50%: Generally denied

A homeowner earning $8,000/month gross with $2,500 in monthly debt payments (mortgage, car, student loans) has a 31.25% baseline DTI. A $200,000 HELOC at a projected full payment of $1,400/month would push DTI to 48.75% — near the limit but potentially approvable with strong credit and low CLTV.

If that same homeowner's credit score is 660 and DTI will be 49%, approval becomes difficult. Lenders typically want one of three compensating factors: lower CLTV, higher credit score, or significant liquid reserves.

HELOC DTI Requirements in More Detail

The specific DTI calculation varies by lender. Most include:

• Primary mortgage payment (PITI — principal, interest, taxes, insurance)
• All installment loan payments (auto, student, personal)
• Minimum payments on all revolving credit (credit cards, existing HELOCs)
• The new HELOC payment (calculated at the repayment scenario, not draw-period minimum)
• Alimony and child support if applicable

Lenders don't count utility bills, insurance premiums, or cell phone bills in DTI — only formal debt service.

For self-employed borrowers, the income side of the equation gets more complex. Two years of tax returns are standard. Net income after business deductions is used (not gross revenue), and declining income trends are viewed negatively. Some lenders offer "bank statement" or alternative documentation HELOCs for self-employed borrowers — requiring 12 to 24 months of bank statements rather than tax returns — but these typically carry slightly higher rates and lower CLTV limits.

What Lenders Look at Beyond the Score and DTI

CLTV ratio: Your combined loan-to-value is independently underwritten from your credit score. Even a borrower with 800 credit won't be approved at 95% CLTV at most institutions. The standard ceiling is 80% to 85%, and exceeding it is usually a hard stop regardless of other factors.

Income stability and tenure: A borrower with 5 years at the same employer is viewed more favorably than someone six months into a new job — even at the same income level. Lenders assess employment continuity as a default risk factor.

Equity position: How much equity you hold beyond the CLTV threshold is a compensating factor. A borrower at 70% CLTV with a 660 credit score has more flexibility than the same borrower at 83% CLTV.

Property condition and type: Investment properties and second homes face tighter requirements than primary residences across every dimension — credit score floor, DTI cap, and CLTV limit.

FHA Cash-Out Refinance: An Alternative for Lower Credit Scores

If your credit score is below 620 and you need to access equity, a HELOC is generally unavailable. The FHA cash-out refinance has a statutory minimum of 580 (though individual lenders often impose overlays requiring 600 to 620). It replaces your primary mortgage entirely, which is a significant trade-off for anyone holding a sub-5% rate. But for homeowners with impaired credit who need equity access, it may be the only structured option.

Improving Your Credit Before Applying

If your score is below 700, the ROI on credit improvement before applying for a HELOC is significant. Specific steps that move the needle fastest:

Pay down revolving credit card balances. The fastest single lever. Credit utilization (card balances ÷ card limits) ideally below 30%, ideally below 10% for maximum impact. This can improve a score by 30 to 60 points within 1 to 2 billing cycles.

Don't close old accounts. Length of credit history is a positive factor. Closing old cards that you're not using reduces your total available credit and increases utilization on remaining cards.

Don't open new accounts. Each new credit application triggers a hard inquiry and temporarily lowers the score. In the 3 to 6 months before a HELOC application, avoid opening new credit.

Correct errors on your credit report. Dispute any inaccurate derogatory items with the three bureaus (Experian, Equifax, TransUnion). Incorrect entries are more common than most people assume.

The 45-day rate-shopping window: under modern FICO models, multiple HELOC applications within a 45-day period count as a single inquiry. Apply to several lenders within that window to comparison-shop without stacking credit penalties.

The Home Equity & HELOC Planning Guide includes a full qualification checklist — covering credit score requirements, DTI calculation step-by-step, documentation needed for application, and strategies for strengthening your profile before approaching any lender.