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Generally, yes. In the United States, a home-equity loan or home-equity line of credit (HELOC) can provide some or all of the cash needed to buy another, less expensive home. The borrowing is secured by the home whose equity you use—not automatically by the home you are buying. You still must qualify under the lender’s underwriting rules, have enough usable equity, and be able to manage your existing mortgage, the equity debt and any financing on the new property at the same time.
A cheaper purchase price does not guarantee approval or make the strategy safe. The critical questions are how much equity the lender will recognize, when the money must be repaid, whether the rate can change, and what happens if your current home does not sell on schedule.
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How the strategy works
Home equity is the current value of a property minus the debt secured by it. A lender may let you borrow against part of that equity through either a lump-sum home-equity loan or a revolving HELOC. You can then use the proceeds toward the purchase of another residence, subject to the loan agreement and applicable underwriting rules.
The property securing the equity borrowing and the property being purchased are separate. If your current home secures the loan, that home remains exposed to nonpayment even though the money is going toward the new home. Your original first mortgage is not erased; the equity product is usually an additional mortgage payment and may be junior to the first lien.
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You may also need a separate mortgage on the new property. During a transition, your household could therefore carry the first mortgage, the home-equity payment and a new purchase mortgage simultaneously. Approval depends on documented income, debts, credit, property values and the lender’s own policies. No product description can establish whether a particular lender will approve your transaction.
Home-equity loan versus HELOC
The two products solve different cash-flow problems. Compare the structure before deciding how to fund a purchase.
| Feature | Home-equity loan | HELOC |
|---|---|---|
| How funds are provided | A specific amount is advanced as a lump sum. | A revolving line lets you draw repeatedly up to a credit limit. |
| Interest rate | May be fixed or adjustable, depending on the product. | Usually adjustable, so the rate and payment can change. |
| When useful | When you know the exact amount needed and want one advance. | When expenses will occur in stages or the final amount is uncertain. |
| Repayment structure | Regular repayment begins under the loan’s schedule. | A draw period is followed by a repayment period; payments can rise when repayment starts. |
| Sale of the securing home | The balance is often due when that home is sold; check the agreement. | The balance is generally due in full when the securing home is sold. |
| Special payment exposure | The agreement controls whether the rate is fixed or adjustable. | Some plans permit interest-only payments during the draw period or require a balloon payment later. |
A HELOC can look affordable while you are drawing, particularly if payments cover interest only. Once the draw period ends, principal repayment can make the required payment substantially larger. The CFPB uses a 10-year draw period as an example in its educational material; that is an illustration, not a universal lender term.
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How much can you actually use?
Start with equity, not the home’s full value
Estimate the property’s value, subtract the balances secured by it and then ask the lender how much of the remaining equity it will lend against. Lenders apply their own valuation, lien-position and underwriting limits, so the arithmetic estimate is not an offer.
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Budget for overlapping housing debts
Make a written budget that includes:
- the existing first-mortgage principal, interest, taxes, insurance and association charges;
- the proposed home-equity-loan or HELOC payment;
- the new home’s mortgage, taxes, insurance, association charges and maintenance;
- closing costs, moving expenses and a cash reserve; and
- the possibility that the current home takes longer to sell than expected.
Use a higher-payment scenario for a variable-rate HELOC rather than relying on today’s payment. Also test the budget with no proceeds from a sale for several months. Unused HELOC capacity is not guaranteed purchase funding: a lender may reduce or freeze further draws if property values fall or your financial circumstances change.
Steps to take before making an offer
- Clarify the transaction. Decide whether the equity funds will cover a down payment, closing costs, the entire purchase or a temporary bridge until the current home sells. Tell prospective lenders that the collateral and the property being purchased are different.
- Document the current property. Gather the latest mortgage statement, other lien balances, insurance information and evidence supporting the property’s value. Ask how the lender will value it and what lien position the new debt will occupy.
- Request both product types. Obtain written terms for a home-equity loan and a HELOC if each is available. Compare the approved amount, rate type, payment formula, draw and repayment periods, and every fee.
- Obtain purchase financing separately. If the cheaper home will have its own mortgage, have that lender underwrite the equity payment as an existing or proposed debt. Ask whether the lender requires the equity account to be closed, paid down or documented before closing.
- Model the closing timeline. Confirm when funds can be accessed, whether a minimum draw or balance applies, and whether the account can be frozen. A line that takes too long to open may not work for a short purchase contract.
- Read payoff language. Find the clause explaining what happens if the home securing the equity debt is sold. A HELOC is generally payable in full immediately on that sale, and a home-equity loan is often treated similarly.
- Have professionals review unusual facts. A mortgage professional can assess qualification and lien issues. A tax professional can analyze whether interest may be deductible for your exact homes, use of proceeds and tax year.
Payment and timing issues to understand
Draw period and repayment period
With a HELOC, the draw period permits borrowing up to the limit. Depending on the plan, required payments during that period may include principal and interest or may be interest-only. When the draw period ends, additional borrowing may stop and repayment begins. The monthly amount can increase because you are paying down principal, because the rate changed, or both.
Variable-rate changes
Most HELOCs have adjustable rates. Ask which index and margin determine the rate, how often it can reset, and whether the contract includes periodic or lifetime caps. A cap limits changes; it does not make the rate fixed. Calculate the payment at several higher rates before using the line for a home purchase.
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Some plans can require a large final payment rather than fully amortizing the balance. Do not assume that selling the current home or refinancing will be possible at that future date. A decline in value, tighter credit or a change in income could prevent a replacement loan.
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Risks that can change the outcome
Your current home is collateral
Missing payments can put the property securing the equity debt at risk. The Consumer Financial Protection Bureau states in its HELOC guidance, last reviewed August 28, 2026: “If you fall behind or can’t repay the loan on schedule, you could lose your home.” A second mortgage does not make the first mortgage disappear; it adds another obligation against the same property.
The sale may not happen when planned
If you expect to sell the current home after buying the cheaper one, a delayed listing, failed contract or lower-than-expected sale price can leave you carrying all debts longer. A HELOC generally must be paid off in full when the home securing it is sold, so verify that the sale proceeds will cover the balance and sale costs.
Access can be reduced
A lender may limit or freeze additional HELOC draws when property values decline or your financial situation changes. Treat only already-available, contractually accessible funds as part of your plan, and keep a separate reserve for overruns.
Collateral and rate risks work together
A variable payment can rise at the same time that a housing-market decline reduces your ability to refinance or sell. Stress-test both the monthly payment and the likely sale proceeds instead of evaluating either risk in isolation.
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Fees and contract terms to compare
Ask each lender for a written fee schedule and the complete agreement. Check for:
- application, appraisal and other upfront charges;
- closing costs;
- minimum draws or required minimum balances;
- annual, inactivity or transaction fees;
- early-termination charges, especially if you expect to sell soon;
- the length and conditions of the draw period;
- the repayment-period formula and any balloon payment;
- rate indexes, margins and caps; and
- the exact payoff requirement when the securing property is sold.
A low initial rate can be outweighed by fees or by a short period before the balance becomes due. Compare the total dollars required during the period you expect to own both homes, not only the first advertised payment.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What about tax deductions?
Do not assume that interest is deductible simply because the money helped buy another home. IRS guidance says home-equity interest may qualify, subject to statutory limits, when the proceeds are used to buy, build or substantially improve a residence. IRS Publication 936 also requires secured debt on a qualified home and qualifying use of proceeds.
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Alternatives to borrowing against the current home
The CFPB’s HELOC booklet identifies several alternatives whose trade-offs differ:
| Alternative | Questions to weigh |
|---|---|
| Sell the current home first | Can you manage temporary housing and timing risk while waiting to buy? |
| Cash-out refinance | Would replacing the first mortgage change the rate, payment, closing costs or payoff timing? |
| Personal line of credit | Would an unsecured product have a higher rate or lower limit, but avoid pledging the home? |
| Retirement-plan loan | What are the plan’s limits, repayment rules and consequences if employment changes? |
| Other cash sources | What fees, liquidity costs or tax effects arise from savings or another lawful source? |
None is automatically superior. Compare collateral exposure, fixed versus variable rates, fees, speed of access and what happens if the move takes longer than expected.
A decision checklist
- Have you identified the exact property securing the equity borrowing?
- Can your budget support the first mortgage, equity debt and new-home costs together?
- Have you tested a higher HELOC rate and a delayed sale?
- Do you know whether payments are interest-only, principal-and-interest or subject to a balloon?
- Are draw limits, freezes, minimums and fees documented?
- Will the balance be payable immediately when the current home is sold?
- Have you confirmed the new-home lender accepts the proposed source of funds?
- Has a tax professional reviewed the cross-property interest question?
Bottom line for a cheaper-home purchase
Using home equity can make a cheaper home purchase possible, but it converts equity in one property into debt secured by that property. A home-equity loan offers a defined lump sum; a HELOC offers reusable access with adjustable-rate and repayment-period risk. Proceed only after written offers show the full costs, you can carry every housing obligation through a delayed sale, and you understand the payoff and tax terms for your specific homes.
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