Using the equity in your existing properties to fund new acquisitions is one of the most common wealth-building strategies in real estate. Two primary tools facilitate this: cash-out refinance mortgages and home equity lines of credit (HELOCs). Understanding how each works, and when to use one versus the other, is a fundamental skill for growing a portfolio without repeatedly saving fresh capital from scratch.

Cash-Out Refinance: Lock In and Pull Out

A cash-out refinance replaces your existing mortgage with a new, larger loan and returns the difference to you in cash. For investment properties, the loan-to-value ceiling is typically 75-80%, meaning you can generally access up to 70-75% of the property's appraised value minus the existing loan balance. On a property worth $500,000 with an existing loan of $300,000, a cash-out refinance at 75% LTV would give you access to $375,000 in total loan proceeds — approximately $75,000 in available cash after paying off the existing mortgage.

The interest rate on a cash-out refinance is typically 0.25-0.5% higher than a rate-and-term refinance and runs 0.5-1% higher than primary residence rates. The key advantage of a cash-out refinance is certainty: you lock in a fixed-rate loan with known payments over a set term, typically 30 years. This predictability is valuable for cash flow planning and debt service budgeting. The downside is that you reset the clock on your loan and pay closing costs on the full loan amount — typically 2-5% of the loan balance — which you need to factor into the cost of capital.

HELOCs: Flexibility With Variable Rate Risk

A HELOC is a revolving line of credit secured by your property's equity, functioning much like a credit card with a variable interest rate. Most HELOCs come with a 10-year draw period followed by a 20-year repayment period, though the exact terms vary by lender. During the draw period, you can withdraw funds as needed and pay interest only on the drawn balance. After the draw period ends, you enter repayment and must pay down both principal and interest.

The flexibility is the main advantage — you draw what you need when you need it, and you only pay interest on the balance outstanding. This makes HELOCs well-suited as a pre-approved reserve for multiple future opportunities rather than a single known acquisition. However, the variable rate means payments can increase if the prime rate rises, creating uncertainty in your cash flow planning. In a rising rate environment, a HELOC that seemed affordable at draw can become materially more expensive before you ever deploy the capital.

When to Use Each Tool

Use a cash-out refinance when you have a specific acquisition identified and want to lock in long-term fixed financing at today's rates before they move higher. The certainty of a fixed rate often justifies the higher closing costs, particularly for investors who plan to hold the asset for a decade or more. A cash-out refinance is also the cleaner option if you want to eliminate the variable rate risk entirely from that slice of your portfolio.

Use a HELOC when you want flexibility for multiple future opportunities or want to preserve existing low-rate mortgages that you do not want to pay off and restart. For portfolio investors managing multiple properties, a HELOC often makes more sense as a pre-approved reserve — a line of credit you can draw quickly when a distressed or off-market deal presents itself — while a cash-out refinance is the tool for a known, planned acquisition where you have already identified the target property.