Insights
December 29 2025
If you’re considering a home equity line of credit (HELOC), one of your first questions is probably: “How much can I actually borrow?” The answer depends on several factors, but you can estimate your potential credit line before you apply.
Most lenders use a Combined Loan-to-Value (CLTV) ratio to determine how much you can borrow:
Maximum HELOC Amount = (Home Value × Maximum CLTV) - Current Mortgage Balance
Most lenders allow a CLTV of 80-85%, though some may go up to 90% for well-qualified borrowers.
Example Calculation
Let’s say you have:
Your potential HELOC amount:
Lenders require a professional appraisal to determine your home’s market value. If your home has appreciated significantly since you bought it, you may have more equity available than you think.
Your credit score primarily affects the interest rate you’ll receive rather than how much you can borrow:
Some lenders may reduce their maximum CLTV for lower credit scores (e.g., 85% CLTV for 720+ vs. 80% CLTV for 620-719), though this varies by lender. A higher credit score also means lower monthly payments, which helps keep your debt-to-income ratio favorable.
Your DTI ratio measures your monthly debt payments against your gross monthly income. Most lenders require DTI below 43%.
Important for debt consolidation: If you’re using your HELOC to pay off existing debt, lenders with debt consolidation features will calculate your DTI based on your financial picture after paying off that debt. This can significantly increase the amount you qualify for.
For example, if you’re paying $800/month on credit cards that you plan to consolidate, that $800 can be removed from your DTI calculation, potentially qualifying you for a larger credit line.
Some lenders cap CLTV at different levels depending on whether the property is a primary, secondary or investment property.
Most lenders require minimum 15-20% equity in your home to qualify. This means your mortgage can’t exceed 80-85% of your home’s value before adding a HELOC.
Step 1: Determine your home’s current value (check recent comparable sales or use online estimators)
Step 2: Find your current mortgage balance (check your latest statement)
Step 3: Apply the formula
Step 4: Verify your DTI stays below 43% (if consolidating debt, subtract payments you’ll eliminate)
Most homeowners can access between 80-85% of their home’s value, minus what they still owe on their mortgage.
To estimate your potential HELOC amount:
Ready to find out exactly how much you can borrow? Trovy makes it easy to see your potential credit line and access your home equity with low rates and flexible terms.