Does a Large HELOC Draw Cost More Than Refinancing the First?

The Quick Read: It depends on how big the draw is compared with your first mortgage, and on how much the first mortgage’s terms are worth keeping. A small or moderate draw against a low-cost first usually wins as a HELOC. A draw that approaches the size of the first usually tilts toward one new first mortgage. A HELOC, short for home equity line of credit, is a second loan secured by the same property.

• A refinance reprices your whole first-mortgage balance, while a HELOC prices only the money you draw.
• A big draw on a variable-rate line adds payment risk that a fixed first mortgage does not carry.
• Fees favor the HELOC, but the gap narrows as the draw grows.
• Investment-property lines are tighter: on our network the ceiling is 70% CLTV, and an LLC cannot hold title.
• Do the blended-cost math before you pick, because prevailing pricing alone can mislead.

Why Does the Answer Flip as the Draw Grows?

The answer flips because the two products price different things. A cash-out refinance replaces your first mortgage with a new, larger one. Every dollar of the balance gets the new terms. A HELOC leaves the first mortgage alone and adds a second loan on top.

Think of it as a weighted average. Say your first mortgage is small compared with the property’s value and carries terms you like. A modest draw barely moves your blended cost, because most of your debt stays on the old terms. Refinancing would throw away those terms to fund a little extra cash.

Now flip it. Suppose the draw is as large as the first mortgage or larger. Most of your debt now sits on the second lien’s terms anyway. Keeping the old first no longer buys much, and you are paying second-lien pricing on the majority of your borrowing. The old first stops being the star of the show.

That is why we define a large draw as a ratio, not a dollar figure. Measure the draw against the first-mortgage balance. A draw that is a fraction of the first is small. A draw that matches or exceeds it is large.

One more point. A second lien sits behind the first, so it typically prices higher than a first lien. Larger second liens can price worse still. BiggerPockets describes the structure plainly: a cash-out refinance is a first mortgage that pays you a lump sum, while a HELOC is a second mortgage that does not touch the first. It also advises weighing each option’s benefits, drawbacks, and closing costs for your own rental.

What Does a Large HELOC Draw Actually Cost?

A large draw costs you in four ways: the rate on the line, the payment structure, the fees, and the leverage it uses up. Most investors only look at the first one.

The rate floats. Home equity lines typically carry variable pricing built from an index plus a margin, and the payment can move as the index moves. A teaser rate can also appear for a short introductory period. On a small balance, a payment swing is an annoyance. On a large balance, it can eat into your cash flow. On the lines we place through our wholesale network, pricing floats through both the draw and repayment periods and never converts to fixed. Some lines elsewhere let you convert part of the balance to fixed, but that fixed portion is typically priced higher than the variable one, according to the CFPB HELOC brochure.

The draw period is interest-only. Our investment-property lines run a 5-year interest-only draw followed by a 25-year fully amortizing repayment. Interest-only looks cheap. It is not cheap, because nothing is paid toward principal during the draw. When repayment starts, the payment steps up. Bankrate describes a typical 10-year draw followed by 10 to 20 years of repayment, and notes that payments can change substantially at the switch. The bigger the balance, the bigger that step.

Much of the line is drawn up front. On our network’s lines, at least 75% of the line is drawn at closing. You cannot open a large line and leave it mostly untouched. That matters because interest starts accruing on most of the money on day one, so a big line behaves like a big draw.

Fees are lower, but not zero. Bankrate’s market survey puts HELOC closing costs at 0% to 2% of the credit line, with many lenders waiving them. Some charge an annual fee up to $250 and an early termination fee up to $500. The same survey puts cash-out refinance costs at 2% to 5% of principal. Those are market-wide ranges, not our network’s terms. The direction is clear, though: a HELOC is cheaper to open.

What Does the Refinance Cost on the Same Money?

A refinance costs more to open and more to carry on the old balance. Its closing costs are charged on the full new loan, not only on the cash you take out. It also reprices the whole first mortgage.

That is the part investors underestimate. If your existing first mortgage carries better terms than today’s market, a refinance gives them up on every dollar of the balance, not just the new money. That is the lock-in effect. We cover it in depth in Lendmire’s piece Does a HELOC Ever Cost More Than Giving Up a Low First Mortgage?.

What you get in return is simplicity and stability. You end up with one payment instead of two. The new loan is commonly fixed, so you avoid the variable-rate exposure on a big balance. On a DSCR cash-out refinance, the new first mortgage is underwritten to the property. DSCR means debt service coverage ratio, which is the property’s rent compared with its full monthly payment of principal, interest, taxes, insurance, and any HOA dues (PITIA). Across our wholesale network, cash-out refinances top out around 75% LTV on a standard rental, and about 6 months of seasoning is the common expectation. Seasoning is the waiting period between buying a property and refinancing it.

Coverage matters here too. Many select programs start at 1.00, and stronger ratios open better pricing and leverage. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Clearing 1.00 does not mean the property makes money, since repairs, vacancy, management, and capital expenses sit outside the calculation.

Terms also give you choices. The 30-year fixed is the spine of the network. Extended terms such as 40 years and interest-only periods are available through select lenders, and ARM structures exist for investors who want them.

How Do the Two Paths Compare Side by Side?

Here is how the two paths differ on the points that move the cost.

Fees favor the HELOC. Rate certainty favors the refinance. Leverage favors the refinance by about five points. Your first-mortgage terms decide the rest.

Can You Even Get the HELOC?

For many investors the HELOC is not on the table, so check that before you compare anything. Market lenders are far less likely to offer lines on rentals than on primary homes. Consumer-finance surveys report limits of 70% to 75% on rental equity borrowing, per NerdWallet. On Lendmire’s network, an investment-property line tops out at 70% CLTV. CLTV is combined loan-to-value: your first mortgage plus the new line, divided by the property’s value.

Run that against a real position. Say your first mortgage already uses 40% of the property’s value. An investment HELOC on our network could add up to 30 points of CLTV. A DSCR cash-out refinance at around 75% LTV could take total borrowing five points higher. For a large equity pull, the HELOC may simply run out of room first. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.

The other limits on an investment line are:

• Credit requirements vary by scenario on investment properties.
• The maximum line is $500,000, and there is no tier above that for investment properties.
• Debt-to-income tops out at 50%, and the lender reviews your file on the interest-only payment at the maximum draw.
• Title must be held by you personally or by a revocable living trust.

That last point decides many files. LLCs, corporations, and partnerships cannot hold title on these lines. A property already deeded to an LLC needs a vesting change, or a DSCR cash-out instead, where the entity can generally stay on title subject to lender program eligibility. Our home equity line programs are also available only in 16 full-service states, narrower than the 41-market DSCR footprint that includes Washington, D.C.

How Do You Find Your Own Break-Even?

You find it with four steps and a calculator, not a rule of thumb.

1. Weight the old and new money. Multiply your first-mortgage balance by its cost. Multiply the draw by the line’s cost. Add them and divide by the total. That is your blended cost on the HELOC path.

2. Price the refinance. Take the cost of one new first mortgage on the combined balance. Compare it with your blended cost.

3. Add the fees. Take the refinance’s extra closing costs and subtract the HELOC’s. Divide the difference by the monthly savings of the cheaper path. The answer is how many months you must hold the loan for the refinance to pay off.

4. Stress the variable rate. Rerun the HELOC path with its index moved higher. If the refinance wins under stress, the HELOC’s advantage is thinner than it looks.

Compare fees separately. The HELOC’s annual percentage rate reflects only the periodic rate, not closing costs and fees, as the CFPB HELOC brochure explains. Do not compare a HELOC and a refinance on headline numbers alone.

Also watch the exit plan. Some investors use a HELOC as a bridge and plan to refinance later. That route means paying closing costs twice. If you already know you will refinance within a few years, the one-time cost of refinancing now may be lower.

When Does Each Path Win?

A HELOC tends to win when:

• The draw is small compared with a first mortgage you want to keep.
• You qualify personally and hold title in your own name or a revocable trust.
• Your rent has room to absorb a payment that can move.
• You plan to pay the line down rather than carry it.

A refinance tends to win when:

• The draw is as large as the first mortgage or larger.
• Your first-mortgage terms are no better than what a new loan would offer.
• The property sits in an LLC, subject to lender program eligibility.
• You want one fixed payment and no variable-rate exposure.
• You need more leverage than a 70% CLTV investment line allows.

Across our wholesale network, we see the same pattern often. Investors price the HELOC on its low entry cost, then discover that the draw they need pushes them past the CLTV ceiling, or that the property’s LLC ownership falls outside what the lender’s program allows. The strongest files clear both tests: enough equity and enough rental coverage. For the mirror-image case, see our article How Much a Large HELOC Draw Costs Against a Small First Mortgage Balance, which walks through it.

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.

For the broader picture on investor financing, see Lendmire’s complete DSCR loans guide.

Key Terms Defined

HELOC: A home equity line of credit, a second loan against the property that you draw on as needed.

CLTV: Combined loan-to-value, which adds every loan on the property and divides by its value.

Draw period: The early years when you can borrow from the line and pay interest only.

Cash-out refinance: A new, larger first mortgage that pays off the old one and gives you the difference.

Blended cost: The weighted-average cost of all your borrowing on the property.

Seasoning: The waiting period a lender wants before you refinance a property you recently bought.

Next Step

If you are weighing a home equity line against a cash-out refinance 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. Lendmire is a broker that arranges financing through select lenders in its wholesale network; all figures are subject to lender guidelines and full file review, and nothing here is a commitment to lend.

About Lendmire

Lendmire is a mortgage brokerage (NMLS# 2371349) arranging home equity lines of credit — primary-residence, second-home and investment-property lines — through a wholesale lending network in its 16 full-service states. Eligibility is determined by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. BiggerPockets: Cash-Out Refinance vs. HELOC

2. CFPB HELOC brochure (print)

3. Bankrate: Home Equity Loan, HELOC or Cash-Out Refi

4. NerdWallet: Can You Get a HELOC on an Investment Property?

5. CFPB HELOC brochure