A home equity line of credit usually lasts between 15 and 30 years from opening to payoff. That total is split into two phases: a draw period of roughly 3 to 10 years when you can borrow against the line, followed by a repayment period of 10 to 20 years when you pay the balance down. So when people ask how long is a HELOC, the honest answer is that it depends on which two lengths your lender writes into the agreement, but the two-phase structure is standard.
How Long the Draw Period Lasts
The draw period is the first phase, generally 3 to 10 years. During this window you can borrow up to your approved credit limit, pay some or all of it back, and borrow again, much like a credit card. Most lenders require only interest payments on whatever you’ve actually drawn, which keeps monthly costs low relative to a fully amortized loan.
Rates during the draw period are almost always variable, tied to a published index (commonly the prime rate) plus a fixed margin. Federal rules require your lender to disclose any annual caps on rate changes and a lifetime maximum rate the HELOC can never exceed.1eCFR. 12 CFR 1026.40 – Requirements for Home Equity Plans
How Long the Repayment Period Lasts
When the draw period ends, the HELOC shifts into repayment, generally 10 to 20 years. You can no longer pull new funds, and payments change from interest-only to fully amortized, meaning each monthly payment covers both principal and interest and is calculated to bring the balance to zero by the end of the term.1eCFR. 12 CFR 1026.40 – Requirements for Home Equity Plans
Your lender must disclose the length of both the draw and repayment periods before you open the account, along with an explanation of how payments change between phases.1eCFR. 12 CFR 1026.40 – Requirements for Home Equity Plans Those disclosure requirements come from the Home Equity Loan Consumer Protection Act, a 1988 federal law that amended the Truth in Lending Act.2Federal Trade Commission. Home Equity Loan Consumer Protection Act
If your rate stays variable through repayment, the monthly payment can still move with market conditions. And because your home secures the line, falling behind carries the same foreclosure risk as any other mortgage.
Combined Term: Adding the Two Phases Together
The total life of a HELOC is simply draw plus repayment. A few common combinations show the range:
- A 5-year draw with a 10-year repayment produces a 15-year total term.
- A 10-year draw with a 15-year repayment produces a 25-year total term.
- A 10-year draw with a 20-year repayment produces a 30-year total term, the same length as many first mortgages.
Because the HELOC is secured by your property, the lender’s lien remains in place for the entire combined term until the balance is paid off and formally released. If you open a 30-year HELOC at age 45, you carry that obligation until age 75 unless you pay it off or refinance earlier.
Balloon-Payment HELOCs Work Differently
Not every HELOC includes a standard repayment period. Some are structured so interest-only payments continue through the entire term, with the full outstanding balance due as a single lump sum, called a balloon payment, at the end. Under this structure the “how long” question has only one number, because there is no amortization phase after the draw.
Federal regulations require your lender to clearly disclose if a balloon payment may result from making only the minimum payments. If the plan has no repayment period and the entire balance comes due at the end of the draw period, the disclosure must state that you will be required to pay the outstanding balance in a single payment.1eCFR. 12 CFR 1026.40 – Requirements for Home Equity Plans Before signing, confirm whether your loan includes a repayment period or ends with a balloon.
Why the Split Matters: Payment Shock at the Transition
The length of each phase is not just a scheduling detail. It shapes what you pay every month. During the draw period, if you’ve borrowed $50,000 at an 8% variable rate, your monthly interest-only payment is roughly $333. Once repayment starts on a 15-year term, that same $50,000 at the same rate requires a fully amortized payment of roughly $478 per month. That’s a jump of more than 40%.
The increase is steeper if you borrowed near your limit in the final months of the draw period, or if rates rose since you opened the line. A shorter repayment period compresses the same balance into fewer years, which raises the monthly payment further. Some borrowers start paying down principal during the draw period so the transition doesn’t hit as hard.
Changing the Timeline: Renewal and Extension
As the draw period nears its end, you may have options that reset or push back the schedule.
Renewal means applying for a new HELOC to replace the existing one. The new line pays off the old balance, and you start a fresh draw period with interest-only payments. This effectively resets the clock, but it requires a new credit evaluation and typically involves closing costs similar to the original HELOC. Your home’s current value and your creditworthiness at the time of renewal determine whether you qualify and on what terms.
A loan modification or extension is a formal agreement with your current lender to push back the repayment timeline. This usually requires an updated property appraisal and may involve a modification fee. If approved, the lender records the amended terms with your local land records office. Extensions can add another 5 to 10 years of draw-period access, depending on the lender.
Either path lengthens the total life of the debt, which means more years of interest. Weigh that against alternatives like refinancing into a fixed-rate home equity loan or simply entering the repayment period on the original schedule and paying the balance down.