Investment Property HELOC Documentation for a Portfolio Down Payment

The Quick Read: A home equity line on one property can fund the down payment on the next, but the purchase lender, not the line lender, decides whether those borrowed dollars count, so the paper trail from draw to escrow matters more than the approval itself. This guide walks the process in order, from the line to the closing file.

• An investment-property line and a DSCR purchase loan are two separate files with two separate underwriters.
• On this network, an investment-property line tops out at 70% CLTV and $500,000, with a 700 minimum credit score.
• DSCR waives the personal-income test. It does not waive source-of-funds review.
• Line proceeds often count toward the down payment but not toward reserves.
• Title matters: a line generally needs an individual or revocable trust, not an LLC.

Why Is a Borrowed Down Payment Documented Differently Than Cash?

Because a purchase lender wants to know the money is yours, not a hidden second loan against the new property. Savings sit in an account with history. A HELOC draw is new debt, so the file must show where it came from, where it went, and what it costs.

DSCR loans qualify primarily on property-level rental income covering the payment, subject to lender guidelines. That is why many investors reach for a line in the first place. Personal income is not the test.

Source of funds is a different test. Across our wholesale network, even lenders that never look at a tax return want the cash traced. Skipping that step is a common reason a clean-looking file stalls.

Two Files, Two Underwriters

The line lender and the purchase lender look at different things and rarely talk to each other. Approval from one says nothing about the other.

Treat them as sequential gates. Pass the first, then confirm the second before any draw.

How Is an Investment-Property Line Sized?

Equity is the starting point. The CFPB HELOC booklet defines equity as home value minus the mortgage balance. Lenders then apply a combined loan-to-value cap and subtract what is already owed.

The cap is where market talk and this network diverge. Experian reports that lenders typically cap investment-property lines at 80% LTV, with 20% equity left after the full draw. The network figure is lower: on an investment property, the ceiling is 70% CLTV, with a $500,000 maximum line and a 700 minimum credit score. Credit above 700 buys eligibility rather than extra leverage, and no higher tier exists.

A few structural facts shape the paper trail:

• The line is a standalone first or second lien, with a 5-year interest-only draw and a 25-year fully amortizing repayment.
• At least 75% of the line is drawn at closing, and pricing floats rather than converting to fixed.
• DTI tops out at 50%, qualified on the interest-only payment calculated on the maximum draw.
• Lines of this size usually run an automated valuation, so a traditional appraisal is commonly not required.
• Availability is narrower than the DSCR footprint, limited to 16 full-service states.

Programs change and every file is reviewed individually, so treat these as eligibility ranges, not promises.

Which Property Secures the Line?

A line on the primary home reads personal income and debts. A line on an existing rental reads the rental’s paper, such as returns and statements. Either can work, but each changes what the line lender asks for.

The rental-secured route carries a title test. Title must sit with an individual or a revocable living trust. LLCs, corporations, partnerships, and irrevocable or land trusts cannot hold title on the line. A rental already deeded to an entity generally needs a vesting change, or a DSCR cash-out refinance instead. For that path, see Lendmire’s DSCR loan versus HELOC comparison for investment property.

Other eligibility limits apply. Borrowers are limited to three lines, and an owner of more than 15 financed properties is not eligible. Manufactured homes, log homes, and condotels are not offered.

The Stage-by-Stage Documentation Checklist

Build the file in four stages. Each stage answers one question the purchase lender will ask.

1. Before the draw. Confirm the purchase program’s rule on borrowed funds. Ask whether a minimum must come from your own seasoned cash. Get the line open and funded before going under contract.

2. At the draw. Keep the HELOC closing documents and the draw confirmation. These show the terms and the amount.

3. In transit. Deposit the draw into your own account and let it sit. Statements should show the cash landing. Avoid routing it through third parties.

4. At closing. Provide the credit report showing the new liability, then a clear trail from the line to your account to escrow.

Large deposits need an explanation in every case. The name on the line, the account, and the purchase contract should match.

How Do Programs Treat Borrowed Funds?

Treatment varies, and that variation is the real risk. Most programs we place files with accept documented line draws against a different property. Some require a minimum portion from the borrower’s own seasoned cash. The strictest overlays want that portion unborrowed, and a plan funded 100% by a line can fail on that point alone.

For contrast only, the Fannie Mae Selling Guide accepts borrowed funds secured by an asset for down payment, closing costs, and reserves. It asks for the loan terms, proof the lender is not a party to the sale, and proof the funds moved to the borrower. DSCR loans are not agency products. Use that list as a model for the paper trail, not as a DSCR rule.

One more edge case. A seasoned draw against another property is commonly accepted when documented. A second lien placed on the new purchase at closing is the structure most lenders refuse.

Reserves and Double-Counting

Down payment and reserves are separate pots. Line proceeds may satisfy one and often cannot satisfy the other. Unused availability on the line generally does not count as reserves either.

Reserves on DSCR purchases vary by lender, leverage, loan size, and transaction type. About 6 months of PITIA is common. Conservative rate-term files at modest leverage under $1,500,000 can see reserves waived, while larger loans typically step up toward 9 months. Cash that pays the down payment is not available to cover reserves.

Plan for both pots before drawing. Many investors combine a line draw, savings, and a cash-out refinance to fill them.

What Does the Purchase Side Look Like?

Most DSCR purchases land at 75% to 80% LTV, which means 20% to 25% down. Select high-leverage programs reach 85% LTV with roughly a 700 or better score. Coverage of 1.00 is where many select programs start. A separate select-lender path goes below 1.00, with leverage and terms adjusted. Pricing and available terms vary by lender, borrower profile, property type, and full underwriting review.

Coverage is monthly rent divided by PITIA, with rent supported by the appraisal rent schedule. The HELOC payment generally sits outside that ratio. It still comes out of your pocket.

Picture an investor buying at 75% LTV with rent covering PITIA at roughly 1.2x. The file clears the coverage test. It says nothing about repairs, vacancy, or management, which sit outside the calculation. Clearing 1.00 is not the same as positive cash flow. Add the line payment on top, and the real monthly picture can be much thinner than the ratio suggests.

Portfolio Sequencing: One Line, Several Purchases

Treat each purchase as its own file. Document each draw separately and keep a ledger per property. Repay or re-season before the next draw so no deposit looks like a mystery.

Watch the cumulative exposure. Three lines is the cap, and each stacked lien sits behind a first mortgage that still exists. Lenders can freeze or reduce a line if values fall, so an investor who counts on an open line for the next deal carries real exposure. The CFPB booklet also warns that falling behind on a line can cost the borrower the collateral.

Lendmire’s piece Using HELOC For Down Payment On Investment Property covers the single-purchase version in more depth.

Where the Rule Breaks

The general rule is that a documented, seasoned draw counts. These cases break it:

• Entity title. An LLC-held rental cannot carry the line, so a DSCR cash-out refinance may be the route instead, subject to lender program eligibility.
• Credit history. Investment files follow 4-year seasoning after a bankruptcy, 7 years after a foreclosure, and 4 years after a short sale.
• Thin availability. Investment-property lines are less common than primary-home lines, and only 16 states are served.
• Ineligible property. The line cannot go on manufactured homes or log homes.

When to Skip the Second Loan

If a DSCR cash-out refinance on the same rental fits the goal, it may be simpler. Cash-out on standard rentals tops out around 75% LTV, with about 6 months of seasoning common. That route has one lender and one file. A line makes more sense when the borrower wants flexible draws and expects to repay between purchases.

Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.

Key Terms Defined

• CLTV: Combined loan-to-value, the total of all liens divided by the property’s value.
• Seasoning: The time funds or events must age before a lender counts them.
• PITIA: Principal, interest, taxes, insurance, and any association dues.
• Borrowed funds: Down payment money that comes from a loan rather than savings.
• DSCR: A ratio of monthly rent to PITIA that measures whether a property’s income covers its own payment.

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. Reach the team at 828-256-2183, or start with the complete DSCR loans guide to see how the purchase side fits.

About Lendmire

Lendmire — NMLS# 2371349 — is a mortgage broker that arranges home equity lines of credit in its 16 full-service states through wholesale lenders, on primary residences, second homes and investment properties. Every line is subject to the lender’s guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. CFPB HELOC booklet

2. Experian: Can you get a HELOC on an investment property?

3. Fannie Mae Selling Guide B3-4.3-15