How Much Can You Borrow on a HELOC to Pay Off Student Loans?

The Quick Read: It depends on the home that secures the line: your limit is the program’s maximum combined loan-to-value times the appraised value, minus what you still owe, and the network’s ceiling is 70% on an investment property but reaches 90% on a primary residence only with a 720 or better credit profile. Your student balance does not set the limit. It only tells you how big the line needs to be. Credit, debt-to-income and property type then decide how much of the equity you can actually use.

• Investment property: 70% combined loan-to-value, a 700 credit minimum, and a $500,000 maximum line.
• Primary residence: tiers run up to 90% combined loan-to-value depending on credit, with a 700 credit profile reaching 75% and lines up to $750,000.
• Second home: up to 90% combined loan-to-value at 720+, with a 640 minimum and a $500,000 maximum line.
• Qualifying: the borrower is underwritten at a 50% maximum debt-to-income ratio, and student loan payments count.
• Rental purchases: a DSCR loan does not count student debt at all, so consolidating it is often unnecessary.

All figures are typical guidelines from select wholesale lenders. They are subject to lender guidelines and full file review, and they are not a commitment to lend.

Key Terms Defined

Combined loan-to-value (CLTV): all loans secured by the property, added together, as a share of its appraised value.

Home equity line of credit (HELOC): a revolving credit line secured by a property. You borrow what you need up to the limit.

Draw period: the stretch when you can borrow from the line and pay interest only. A repayment period follows, when you pay down principal.

Debt-to-income ratio (DTI): your monthly debt payments divided by your monthly income.

PITIA: principal, interest, taxes, insurance, and association dues. It is the full monthly payment on a property.

DSCR (debt service coverage ratio): monthly rent divided by PITIA. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.

How Do Lenders Set Your HELOC Limit?

Lenders multiply the home’s appraised value by the maximum CLTV, then subtract every loan already on the property. What remains is the equity-based ceiling. A first mortgage, a second lien, and the new line all count toward the same percentage.

Lendmire brokers HELOCs through select wholesale partners, and the ceiling depends on occupancy and credit. Investors should watch one detail in particular. The highest tiers are not the default.

Primary residences step down as credit drops, with combined loan-to-value tiers that rise as credit scores climb, as the table above shows. Second homes floor at 640 credit and investment properties at 700. Some states add their own limits on top of these tiers.

Broader market surveys tell a different story. Experian reports that most lenders cap CLTV around 85%, with some going to 90% or 100%. That is a market-wide statistic, not what the network offers. On an investment property, the network ceiling is 70%.

The cap is rarely the whole story. Credit and DTI can shrink the offer below the equity-based ceiling.

A Worked Example in Percentages

Say your home is valued at 100% and your first mortgage is 40% of that value. On an investment property at the 70% ceiling, the line tops out near 30% of the home’s value. The same home as a primary residence with a 720+ credit profile at 90% CLTV could support a line near 50% of value, up to the dollar limit for that tier.

Now compare that line to your student balance. If the balance is smaller than the line, you have room. If it is larger, you can pay part of it off, or you can look at other routes later here.

The dollar caps still apply. Lines of $500,000 or less ordinarily run an automated valuation instead of a traditional appraisal, and a lower-than-expected value directly shrinks the line. A line above $500,000 is available on primary residences only. It needs a credit profile of 700 or better (720 on the longer-runway program, the wholesale program with the longer interest-only draw period), and it caps at 75% CLTV with a full appraisal.

Borrow the Maximum, or Only What You Need?

Size the line to the payoff, not to the ceiling. These lines require at least 75% of the line to be drawn at closing. A line far bigger than your student balance means you start paying on money you never needed.

Pricing on these lines floats through both the draw and repayment periods and never converts to fixed. The CFPB’s HELOC booklet notes that HELOC pricing typically moves with the market instead of staying fixed. A bigger balance carries more of that movement.

After closing, the minimum subsequent draw is commonly $1,000, with a few states higher. Some borrowers keep a small cushion in the line for repairs. Others take only the payoff and leave the rest unused. Either way, the minimum draw at closing shapes the right line size.

What Does Your File Need Beyond Equity?

The line is underwritten on you, not on a property’s rent. The standard borrower checks are:

• Credit: 600 is the program floor, but investment lines need 700 and second homes need 640. The score model is a single bureau, keyed to the primary wage earner.
• DTI: 50% maximum, or 45% for credit profiles from 600 to 679. A ratio above 45% requires a 680 minimum.
• Payment test: the line is qualified on the interest-only payment calculated on the maximum draw, not on the amount you actually draw.
• Credit report age: no more than 90 days old at closing, with no rescores.
• Bankruptcy: 4 years of seasoning from discharge or dismissal.

Student loan payments count in DTI. Deferred or forbearance loans still show up on the credit report. This is one reason a borrower with heavy student debt can fall short even with plenty of equity.

Title matters too. The property must be held by you personally or by a revocable living trust. An LLC cannot hold title on these lines, so a property already deeded to an LLC needs a vesting change or a different structure. A DSCR cash-out refinance is the usual alternative.

HELOCs through Lendmire are offered in 16 full-service states, which is narrower than the DSCR investor footprint of 41 markets, including Washington, D.C.

Should You Pay Off Student Loans With a HELOC?

Only if the swap clearly improves your position. A HELOC moves unsecured debt onto your property. The CFPB warns that you could lose your home if you cannot make the payments.

The decision depends heavily on the loan type.

Private loans carry few federal protections, so there is less to give up. Federal loans are the opposite. Paying them off with home equity ends access to those safety nets, and the trade-off is permanent. If your income is steady and you will not need those protections, the swap can still make sense. If your income could dip, the protections may be worth more than what you gain from the swap.

A second risk shows up when the draw period ends. During the draw you pay interest only. After that, principal begins, and the payment steps up. On the investment structure, that is a 5-year draw followed by a 25-year repayment. Primary residences and second homes also have a 3-year draw with a 17-year repayment.

Test the swap with a short checklist:

1. Compare total cost over the time you will actually carry the debt, not just the first payment.

2. Stress-test the payment if pricing moves up and again when principal begins.

3. Count the federal protections you lose, if any.

4. Confirm that the remaining equity still leaves a cushion if values fall.

What If Your Student Debt Is Bigger Than the Line?

Pay part of it off, or look at a different structure. A partial payoff is allowed, and it can still lower your monthly obligation and your DTI. Just remember the line sits on top of your first mortgage as a second lien, or it can stand alone as a first lien.

If the debt is far larger than your equity, a low-equity borrower has fewer options. The lower credit tiers also carry lower CLTV caps, so the line shrinks twice. A better path is to build equity first, or to explore a larger cash-out structure on a different property.

Couples and co-borrowers should know that the score is keyed to the primary wage earner, so one spouse’s credit drives the tier. Parents can use their own home to help a child, but the parent carries the lien and the DTI hit.

When a DSCR Loan Solves the Real Problem

Here is the investor angle. If your goal is buying rentals, you may not need to clear student debt first. A DSCR loan does not count your DTI, so student loan payments never enter the ratio. Credit, assets, reserves, and the property still get reviewed.

Across the network, a few typical ranges apply, all subject to lender guidelines:

• Purchases: most files land at 75% to 80% LTV, with select programs reaching 85% at roughly a 700+ score.
• Cash-out refinance: about 75% LTV on standard rentals, with about 6 months of seasoning commonly expected.
• Credit: a 620 floor exists in parts of the network, most programs want around 660, and 700+ unlocks the strongest tiers.
• Coverage: 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
• Loan size: up to $3,000,000 on standard programs (smaller balances available through select lenders).
• Reserves: often around 6 months of PITIA, with variation by lender, leverage, and loan size.

Clearing 1.00 does not mean positive cash flow. The ratio compares rent to PITIA only. Repairs, vacancy, management, and utilities sit outside it.

DSCR loans can be made to an LLC, subject to lender program eligibility. That is a sharp contrast with the HELOC, which cannot be held in an LLC. The same equity cannot do two jobs, either. Equity used to retire student debt cannot also fund the next down payment. Many investors treat a HELOC as the capital source and the DSCR loan as the acquisition financing, so the order matters. For program basics, see Lendmire’s complete DSCR loans guide.

Where to Go From Here

If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals. The right answer is often the structure that keeps your equity free for the next rental, so that is worth settling before you draw on it.

About Lendmire

Lendmire, NMLS# 2371349, is a mortgage brokerage that arranges home equity lines of credit through wholesale lending partners in its 16 full-service states. Lines on primary residences, second homes and investment properties are each reviewed individually by the lender under the program’s occupancy, credit and combined-loan-to-value guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. Experian – How much can you borrow with a HELOC

2. CFPB – HELOC booklet

3. CFPB – What is a HELOC