A home equity loan is a lump sum at a fixed rate. A HELOC is a credit line with a variable rate. Both are second mortgages on your Arizona home, and the choice comes down to one question: do you know exactly how much you need, or will the bills show up in pieces? If you know the number, take the fixed loan. If you do not, the line gives you room, and it gives you rate risk too. Here is how the two compare for homeowners in Scottsdale, Phoenix, and across Metro Phoenix.

HELOC vs home equity loan: the real difference

The short answer is how you get the money and how the rate behaves. With a home equity loan you borrow once, the rate is fixed, and the payment is the same every month until the loan is gone. With a HELOC you get a limit, you draw what you need during a draw period that usually lasts 10 years, and the rate floats with the prime rate. After the draw period you cannot borrow more, and the balance converts into a repayment schedule that often runs 10 to 20 years.

Fixed means you can plan. Variable means you hope. Pick based on how much you can afford to be wrong.

Both loans sit behind your first mortgage, so they are second liens. That matters in one place people forget. If you ever want to refinance your first loan, the second lender has to agree to stay in second position, and sometimes they do not. Our post on HELOC subordination on an Arizona refinance explains how that goes.

What it costs: a $60,000 example

Here is a real scale with round numbers. Say your Scottsdale home is worth $450,000 and you owe $250,000 on a first mortgage at 3.25%, with a payment of about $1,088 principal and interest. You want $60,000 for a roof and a new HVAC system. Your combined loan to value would be $310,000 on $450,000, or about 69%, which clears the 80% to 85% cap most lenders use. The rates below are illustrations, not quotes.

Look at the last row. The cash-out refinance has the lowest rate on the new money, but it also raises the rate on the $250,000 you already had at 3.25%. That is why it costs about $341 a month more than the 15 year home equity loan in this example. When your first mortgage rate is far below current rates, leaving it alone and borrowing a second loan on top usually wins. Our guide on cash-out refinance vs HELOC in Arizona walks through the other side of that math.

The HELOC row looks cheapest, and for the first few years it is. The catch is the interest only payment. You are not paying down anything, and if prime moves up a full point the payment on a $60,000 balance rises by about $50 a month. When the draw period ends the payment resets to cover principal as well. Plan for that day now, not then.

Use the calculator below to test your own amount. Enter the loan amount as the price, set the down payment to 0, and pick a term. It shows principal and interest only, and the numbers are estimates.

Run your own numbers

When each one makes sense

Choose a home equity loan when the expense is a known number and the work is mostly done at once. Think of a roof, a pool, a one time payoff of a high rate debt, or a down payment on a second property. You get the full amount, the rate is locked, and the payment is predictable. Our post on using a home equity loan to pay off credit cards in Arizona covers one of the most common reasons homeowners do this, and the risk that comes with it.

Choose a HELOC when the cost shows up in phases. A remodel that runs six months, a business that needs working capital in bursts, or a cushion you want available and may never touch. You only pay interest on what you draw. Some Valley homeowners also open a HELOC as an emergency line while they are still in good financial shape, because it can be hard to get one after a job loss. That is a real use, and it is cheap to hold when the line is unused, though some lenders charge annual or inactivity fees.

If you already carry a HELOC and the variable rate is hurting, there is a way out. Refinancing to pay off a HELOC can lock the balance into a fixed payment, and the right move depends on your first mortgage rate.

Taxes, costs, and the fine print

The tax rule surprises people. Under current IRS rules, interest on a home equity loan or HELOC is deductible only when you spend the money to buy, build, or substantially improve the home that secures it, and only within the overall limits on mortgage debt. If you use it for a car, tuition, or credit cards, you cannot deduct the interest. The IRS explains the rules in Publication 936, and your CPA should confirm how they apply to you.

Costs vary by lender. Some HELOCs have low or no closing costs but charge annual fees or require you to keep the line open for a few years. Home equity loans usually carry closing costs for the appraisal, title work, and recording, often 2% to 5% of the loan amount. Read the draw period, the rate cap, the margin over prime, and the early closure terms before you sign. The Consumer Financial Protection Bureau publishes plain language guides on what to ask.

Equity is also a moving target. Home values across Metro Phoenix have shifted from the peak, and the amount you can borrow depends on a current appraisal, not on what a neighbor sold for last year. For local figures, see Homes.com's Phoenix housing market report. If you are weighing whether to tap equity for a home upgrade or look at your next place, you can browse listings at Arizona Luxury Property Search.

How we help with equity decisions

As a brokerage, Pillar Mortgage Group shops several lenders, so the comparison starts with your first mortgage and works outward. You can see the products we shop on our loan programs page and the steps on our process page. Since the tax angle comes up in almost every conversation, our post on cash-out refinance taxes in Arizona is a good read before you decide.

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