What Happens When a HELOC's Draw Period Ends?
Every HELOC is built around a countdown that’s easy to ignore while it’s running — a set number of years to borrow and repay interest only, followed by a very different phase once that window closes.
The short answer
When a HELOC’s draw period ends, the ability to borrow additional funds against the line typically stops, and the loan moves into a repayment period during which the outstanding balance is paid down through regular payments that include both principal and interest. Because draw-period payments are often interest-only, the shift to full principal-and-interest payments can mean a noticeably larger monthly bill, even though the interest rate itself hasn’t necessarily changed. Understanding this transition ahead of time is the main way to avoid being caught off guard by it.
Two phases, two different jobs
A HELOC is generally structured in two parts that work differently from each other, a distinction covered in more detail when comparing a HELOC’s draw period to its repayment period. During the draw period, the borrower can draw funds up to the credit limit as needed, and many lenders only require interest payments on the amount actually drawn. Once the draw period ends, new borrowing generally isn’t allowed, and the loan converts into a structured repayment schedule designed to pay off whatever balance remains by the end of the loan’s term.
How the payment typically changes
Interest-only payments during the draw period can be deceptively low, since they don’t reduce the principal balance at all. Once repayment begins, the monthly payment is recalculated to include both interest and enough principal to fully amortize the remaining balance over the years left in the loan. For a large balance carried through years of interest-only payments, this recalculation can produce a monthly payment that’s substantially higher than what the borrower had grown used to.
Why payment shock catches people off guard
The gap between an interest-only payment and a fully amortizing one tends to be largest when the outstanding balance is high and the remaining repayment term is short, since more principal has to be paid off in less time. Borrowers who treated the low draw-period payment as the “real” cost of the loan, rather than a temporary feature of that phase, are the ones most likely to be surprised, especially on a line with a variable rate that can also shift during the transition.
Options as the transition approaches
Before a draw period ends, it’s worth reviewing the exact date it converts, what the estimated new payment will look like, and whether extra principal payments made during the draw period could meaningfully lower that future payment. Some borrowers also explore refinancing the balance into a new loan before the conversion happens, including folding it into a first mortgage through a refinance, as one way to reset the terms before the repayment period’s higher payment takes effect.
The bottom line
The draw period’s lower payment is a feature of that specific phase, not a preview of what the loan will cost long-term. Knowing the conversion date well in advance, and understanding how the payment is likely to change, turns what can be a jarring transition into a planned one.