Exploring HELOC loan limits: How much can you borrow?

young couple sits on their condominium rooftop exploring HELOC loan limits online on their laptop.
October 23, 2024 | Alliant Credit Union

So you've consistently made your mortgage payments and built up a large amount of equity in your home. While this is a great accomplishment, you may be wondering how you can tap into that equity for other financial needs. If this is the case, a home equity line of credit (HELOC) might just be the answer.

A HELOC allows you to borrow money using your home as collateral, providing a flexible credit line you can draw from when needed. Whether you're looking to fund a major home renovation, pay for education expenses or consolidate debt, a HELOC offers a practical solution with an interest rate that is typically lower than other forms of credit.

But how much can you actually borrow with a HELOC? The answer depends on several factors that lenders consider, including the value of your home, your credit score and your overall financial health. Read on to learn more about HELOC loan limits and how to determine the amount you can borrow.

What you’ll learn

What determines your HELOC loan limit?

Similar to a credit card, a HELOC has a set credit limit you can borrow up to. This limit is established by the lender and depends on several factors.

  • Home equity: The amount of equity you have in your home is the starting point for calculating your HELOC limit. Equity is calculated by subtracting your current mortgage balance from your home’s market value. The more equity you have, the higher your potential loan limit. Before approving your HELOC application, lenders typically require an appraisal to determine the current value of your home.
  • Loan-to-value ratio: Once the value of your home has been determined, lenders will calculate the loan-to-value (LTV) ratio, which is the percentage of your home's value that can be used as collateral for the HELOC loan. Most lenders enforce a maximum LTV ratio between 80% and 85%, although some may offer higher limits.
  • Debt-to-income ratio (DTI): Lenders will also look at your debt-to-income (DTI) ratio, which compares your monthly debt payments to your gross monthly income. A lower DTI indicates a better capacity to take on additional debt, which can positively influence your HELOC limit. Generally, lenders prefer a DTI ratio of 43% or less.
  • Credit score: Your credit score is another crucial factor that lenders consider when determining your HELOC loan limit. A higher credit score indicates you have a good track record of managing debt and are more likely to make timely payments on your HELOC loan.

Calculating your potential HELOC borrowing power

Figuring out how much you may be able to borrow with a HELOC is easier than you might think. The calculation involves your home’s market value, your current mortgage balance, and the lender’s loan-to-value (LTV) ratio. Follow these steps to estimate your borrowing power.

  1. Determine your home’s market value: Start by getting an estimate of your home’s current market value. You can do this by reviewing recent sales of similar homes in your area, using an online home value estimator or getting a professional appraisal.
  2. Calculate your equity: Subtract your remaining mortgage balance from your home’s market value. This gives you the amount of equity you have available.
  3. Apply the LTV ratio: Multiply your home’s market value by the maximum LTV ratio offered by your lender. Then subtract your existing mortgage balance from this figure. The result is your maximum HELOC limit.

Example scenario: Let's say your home is worth $600,000 and you owe $200,000 on your mortgage. With an 80% LTV ratio, your maximum HELOC limit would be calculated as follows:

$600,000 x 80% = $480,000

$480,000 - $200,000 = $280,000

In this case, your potential HELOC borrowing power would be $280,000.

Additional factors that can affect your HELOC borrowing power

Your HELOC borrowing limit isn’t set in stone and can be influenced by various external factors, including: • Interest rates. Since most HELOCs have variable interest rates, changes in the market can affect how much you’re able to borrow. If interest rates rise, it could increase your monthly payments. • Market conditions. Shifts in the housing market can impact your home’s equity. If property values decline, your HELOC line of credit limit could decrease as well, as it’s based on the current value of your home. • Changes in financial circumstances. If your lender has reasonable cause to believe your financial situation has changed in a way that would affect your ability to repay the debt, they may reduce your HELOC limit.

Unlocking your home's equity for financial planning

Unlocking your home’s equity through a HELOC offers a smart and flexible way to meet your financial needs, whether it's funding major home improvements, consolidating debt, or planning for future expenses.

To maximize the benefits, make sure you use your HELOC responsibly. Start by identifying clear financial goals and create a comprehensive repayment plan that fits within your budget. It’s important to consider how interest rates might fluctuate and how your financial situation may evolve over time. The last thing you want is to overextend yourself and risk losing your home.


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