The amount you can borrow depends on your home's value, your existing mortgage balance, and your lender's maximum loan-to-value (LTV) ratio. True Equity Line allows up to 85% combined LTV. For example: if your home is worth $400,000 and you owe $250,000 on your mortgage, you may be eligible for a HELOC of up to $90,000 (85% of $400,000 = $340,000 minus $250,000 = $90,000).