Cash Out Refinance vs HELOC Calculator

The Cash Out Refinance vs HELOC Calculator helps compare the estimated borrowing costs, monthly payments, upfront expenses, and total interest associated with each option. Instead of comparing interest rates alone, you can evaluate how each financing structure fits your existing mortgage and expected repayment timeline.

Should You Replace Your Mortgage or Borrow Against Your Equity?

The central difference is what happens to your existing mortgage.

With a cash out refinance, you replace your current mortgage with a new, larger mortgage and receive the eligible difference in cash after paying off the existing loan and applicable costs.

With a HELOC, you generally keep your existing first mortgage and establish a separate revolving credit line secured by your home. You borrow against that line as needed, subject to its terms and available credit.

Your choice can affect the interest rate applied to your existing mortgage balance, the amount of new debt, and the flexibility you have when accessing funds.

Compare the Two Borrowing Options

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Actual terms depend on the lender and loan agreement.

How the Calculator Compares Costs

A useful comparison evaluates the cost of accessing equity separately from the cost of your existing mortgage.

For a cash out refinance, the analysis should consider the new loan amount, interest rate, loan term, closing costs, and the amount of cash received.

For a HELOC, it should consider the amount borrowed, applicable interest rate, draw schedule, repayment terms, fees, and whether the rate changes during the borrowing period.

The calculator should use the same comparison period for both options. Comparing a 30 year refinance with only the first five years of HELOC payments without accounting for the remaining debt can produce a misleading result.

Example: Accessing $75,000 in Home Equity

Suppose a homeowner wants to borrow $75,000 for a major home improvement project.

The homeowner currently has a first mortgage with a relatively low interest rate and is considering two options.

Option A: Cash Out Refinance

The existing mortgage is replaced with a new loan that pays off the current balance and provides the required cash, subject to closing costs and lender approval.

The homeowner must evaluate the new rate on the entire refinanced balance, not just the $75,000 received.

Option B: HELOC

The homeowner keeps the current mortgage and borrows $75,000 through a separate credit line.

The original mortgage payment remains in place, while the HELOC creates an additional payment obligation.

The comparison should include both payments under the HELOC option and the full new mortgage payment under the refinance option.

Why Your Existing Mortgage Rate Matters

The rate on your current mortgage can significantly influence the result.

Suppose your existing mortgage has a low fixed interest rate. A cash out refinance may replace that rate with a higher rate on the entire new mortgage balance.

A HELOC may preserve the original mortgage rate because the credit line is separate. However, the HELOC may have a variable rate, additional fees, and different repayment terms.

If your current mortgage rate is relatively high, refinancing could be more competitive, depending on the new rate and total transaction costs.

The calculator should therefore include the existing mortgage terms rather than comparing only the advertised refinance and HELOC rates.

Calculate the Cash Available From a Refinance

The amount you receive from a cash out refinance is not necessarily equal to the difference between your home's value and current mortgage balance.

The calculation must also account for the permitted new loan amount and transaction expenses.

A simplified estimate is:

Estimated Cash Received = New Loan Amount − Existing Mortgage Payoff − Applicable Closing Costs − Other Payoffs

For example:

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This is an illustrative calculation. The actual amount depends on the appraised property value, lender requirements, eligible loan amount, and final payoff figures.

HELOC Payments Can Change Over Time

A HELOC generally allows borrowers to draw funds up to an approved credit limit during a specified draw period.

Depending on the agreement, payments during the draw period may differ from payments during the repayment period.

A variable interest rate can also change the amount of interest charged.

For example, a borrower may initially receive a manageable payment based on the current rate and outstanding balance. If the rate increases or the repayment period begins, the required payment may rise.

For this reason, compare a HELOC using multiple interest rate scenarios and the actual repayment terms, rather than assuming the initial payment will remain unchanged.

Compare Costs Over Your Expected Holding Period

The lowest monthly payment does not automatically identify the least expensive option.

Consider how long you expect to keep the borrowing.

If you plan to repay the debt within a few years, upfront expenses and early repayment flexibility may be important.

If you expect to keep the debt for a longer period, total interest, principal repayment, and the possibility of future rate changes become more significant.

A useful calculator should compare both options over the same period, such as three, five, or ten years, and show the outstanding debt remaining at the end of that period.

Do Not Compare Interest Rates Alone

A cash out refinance may offer a lower rate than a HELOC, but that rate applies to the entire new mortgage balance.

A HELOC may have a higher rate, but the higher rate generally applies to the amount borrowed through the line of credit, while your original mortgage remains separate.

For example, if you have a substantial existing mortgage balance, replacing it with a higher rate could increase borrowing costs even if the new refinance rate looks competitive against the HELOC rate.

The appropriate comparison includes the existing mortgage, additional funds needed, transaction costs, and repayment structure.

When a Cash Out Refinance May Be Worth Evaluating

A cash out refinance may be worth comparing when:

• Your current mortgage rate is close to or higher than the available refinance rate.

• You prefer a single mortgage payment.

• You need a larger amount of equity and qualify for the new loan.

• You prefer a fixed interest rate and predictable principal and interest payments.

• The transaction costs make sense over your expected borrowing period.

These factors do not guarantee that refinancing will be cheaper. The new loan's total cost and repayment schedule should be evaluated before proceeding.

When a HELOC May Be Worth Evaluating

A HELOC may be worth comparing when:

• You want to preserve your existing mortgage rate.

• You need funds in stages rather than all at once.

• You want a revolving credit line that allows repeated borrowing and repayment.

• You expect to repay the borrowed amount relatively quickly.

• You can manage the possibility of variable interest rates and changing payments.

A HELOC still places your home at risk if you fail to meet the repayment obligations, and the credit line's terms should be reviewed carefully.

Include Closing Costs and Other Fees

Closing costs can change the result of the comparison.

A cash out refinance may involve appraisal charges, lender fees, title services, and other mortgage transaction expenses.

A HELOC may involve application, appraisal, annual, transaction, or other fees, depending on the lender and agreement.

Some expenses may be financed, while others may be paid upfront. If fees are added to a loan balance, they may also generate interest.

For a fair comparison, include the applicable fees for each option and avoid counting the same expense twice.

Understand the Remaining Debt

The amount of debt remaining at the end of the comparison period is just as important as the payments made during that period.

A financing option with a lower payment may reduce principal more slowly or leave a larger outstanding balance.

A cash out refinance can also extend repayment over a new term, potentially increasing the time you pay interest on the refinanced debt.

Compare the total payments, interest paid, and remaining balance together to understand the broader cost.

Frequently Asked Questions

What is a Cash Out Refinance vs HELOC Calculator?

It compares the estimated cost of accessing home equity through a cash out refinance or a home equity line of credit, including payments, interest, fees, and remaining debt.

Is a cash out refinance cheaper than a HELOC?

Not always. The outcome depends on your existing mortgage rate, new refinance terms, HELOC rate, fees, borrowing amount, and repayment timeline.

Does a cash out refinance replace my existing mortgage?

Yes. The new mortgage generally pays off and replaces your existing mortgage, with eligible proceeds provided after the applicable payoffs and costs.

Does a HELOC change my existing mortgage rate?

A HELOC generally remains separate from your first mortgage, so your existing mortgage rate does not automatically change. The HELOC has its own interest rate and repayment terms.

Can a HELOC interest rate increase?

Yes. Many HELOCs have variable rates, although the actual terms depend on the agreement. Test higher rate scenarios before borrowing.

Can I borrow the same amount with both options?

Not necessarily. The amount available depends on the property's value, existing debt, lender requirements, credit profile, and applicable loan limits.

Which option is better for short term borrowing?

A HELOC may be worth evaluating when you need funds in stages or expect to repay them quickly. However, fees, interest rates, and repayment terms can change the result.

Does a cash out refinance always lower my monthly payment?

No. The new loan amount, interest rate, term, and transaction costs determine the payment. A larger balance or higher rate can increase it.

Should I include my existing mortgage payment in the HELOC comparison?

Yes. Because a HELOC generally does not replace the first mortgage, the comparison should include both the existing mortgage payment and the HELOC payment.

Does this calculator determine how much equity I can borrow?

No. It estimates the financial comparison. A lender must assess the property's value, available equity, creditworthiness, and applicable lending requirements.

Compare Your Home Equity Options With Merchants Home Lending

Using home equity can provide access to funds, but the structure of the borrowing determines how costs accumulate and how payments change over time.

The Cash Out Refinance vs HELOC Calculator helps you compare the cost of replacing your existing mortgage with the cost of keeping it and adding a separate credit line. Consider the existing mortgage rate, total fees, monthly payments, interest costs, and remaining balance before choosing an option.

Merchants Home Lending can help you review available mortgage financing options and understand how a proposed refinance compares with borrowing through a home equity line of credit.

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