One of the most overlooked aspects of a HELOC is what happens when the draw period ends — and it catches a surprising number of borrowers off guard. Many homeowners focus entirely on the low payments during the early years and never think through what comes next.
The transition from the draw period to the repayment period is one of the most important moments in the life of a HELOC. For borrowers who haven’t planned for it, the payment increase can be sudden and significant. Understanding this transition before you borrow — not after — is the difference between a HELOC that works smoothly and one that becomes a financial strain.
Understanding the Two Phases of a HELOC
Every HELOC has two distinct phases, and they function very differently:
The draw period typically lasts 5 to 10 years, with 10 being the most common. During this phase you can borrow from your credit line as needed, repay, and borrow again. Most lenders only require interest-only payments during this time — which keeps your monthly cost low.
The repayment period typically lasts 10 to 20 years and begins the moment the draw period ends. At this point the line closes — you can no longer borrow — and you must begin repaying both principal and interest on your outstanding balance.
The shift between these two phases is where payment shock happens. Understanding the difference between this structure and a fixed home equity loan helps borrowers choose the right product from the start.
What Is Payment Shock?
Payment shock is the sudden, significant increase in your monthly payment when your HELOC transitions from the draw period to the repayment period.
The term “shock” is used deliberately — the increase is sudden, not gradual. There’s no warning payment and no ramp-up. On the day your draw period ends, your minimum payment resets from interest-only to a fully amortizing principal-and-interest payment.
Depending on your balance, rate, and remaining term, this transition can raise your monthly payment by anywhere from 25% to 80% — sometimes more. For a borrower who has been comfortably making interest-only payments for ten years, that increase can be jarring if they haven’t planned for it.
A Real Example of the Payment Jump
Let’s look at what this actually looks like in dollars.
Consider an $80,000 HELOC balance at a 7.75% interest rate — a realistic mid-range rate for 2026.
During the draw period (interest-only):
The monthly payment is calculated as balance × rate ÷ 12. On $80,000 at 7.75%, that’s roughly $517 per month.
During the repayment period (principal + interest, 20-year term):
Once the balance must fully amortize over 20 years, the payment jumps to approximately $657 per month.
That’s a meaningful increase — and that example assumes the rate stays the same. Because most HELOCs carry variable rates tied to the Prime Rate, if rates have risen by the time your draw period ends, the jump could be even larger.
For borrowers carrying larger balances, the increase is proportionally bigger. A $150,000 balance would see the payment climb from roughly $969 interest-only to around $1,232 fully amortizing — a difference that can strain a budget that wasn’t prepared for it.
Why the Variable Rate Makes This Harder to Predict
Most HELOCs are priced at the Wall Street Journal Prime Rate plus a lender margin. In 2026, pricing typically ranges from Prime + 0% to Prime + 2% for qualified borrowers, with the best margins reserved for high credit scores and lower combined LTV.
The challenge is that your HELOC rate can change throughout both the draw and repayment periods. A borrower who opened a HELOC when rates were lower may face repayment at a higher rate — compounding the payment shock beyond just the shift from interest-only to amortizing payments.
This unpredictability is exactly why planning ahead matters so much with a HELOC.
How to Avoid Payment Shock
The good news is that payment shock is entirely avoidable with planning. Here are the most effective strategies:
Make principal payments during the draw period. Even though most lenders only require interest-only payments, voluntarily paying down principal during the draw period accomplishes two things — it reduces the balance that will amortize later, and it gets your budget accustomed to a higher payment before it becomes mandatory. This is the single most effective way to soften the transition.
Know your numbers before the draw period ends. Confirm the balance you’ll owe when the line closes, how long your repayment period lasts, and what your monthly payment will be. Don’t wait for the first higher statement to find out.
Convert to a fixed-rate segment. Many 2026 HELOCs allow you to convert part of your variable balance into a fixed-rate portion. The fixed rate may be 0.25% to 0.75% higher than the variable rate at conversion, but it provides payment certainty — valuable if you’ll carry the balance for more than two to three years.
Refinance into a new HELOC. If your draw period is ending, refinancing into a new HELOC can restart the draw phase and restore borrowing flexibility. This may also secure better terms if your credit or home value has improved.
Refinance into a fixed-rate home equity loan. Converting your variable-rate HELOC into a fixed-rate home equity loan provides predictable monthly payments and protection from rising rates.
The Single Most Important Rule
If there’s one principle that prevents payment shock, it’s this — have a payoff plan before your first draw.
A HELOC works beautifully when the borrower knows how and when they’ll repay the balance. It becomes a problem when the plan is “we’ll figure it out in year ten.”
The minimum interest-only payment is not the target. The most financially sound approach is to set a scheduled principal payment from month one — treating the HELOC like a loan you’re actively paying down rather than a low-payment line you’re carrying indefinitely.
A borrower who draws $90,000 for a basement renovation and uses the rental income from that new unit to systematically pay down the balance has a financeable, well-structured plan. A borrower who draws the same amount for spending with no repayment strategy is setting up the exact situation payment shock punishes.
Real Borrower Scenario
A homeowner came in concerned about her HELOC, which had about 18 months left in its draw period. She had been making interest-only payments comfortably on a $95,000 balance for years and had just realized her payment was about to increase significantly.
When we reviewed her numbers, the math was clear. Her interest-only payment was roughly $614 per month. Once the repayment period began with a 15-year amortization, her payment would jump to approximately $895 — an increase of nearly $281 per month she hadn’t budgeted for.
Rather than waiting for the shock to hit, she had three options: start making voluntary principal payments now to reduce the balance and ease into the higher payment, convert to a fixed-rate home equity loan for predictability, or refinance into a new HELOC to restart the draw period.
Because she had stable income and simply wanted predictability, she chose to convert to a fixed-rate home equity loan. The payment was slightly higher than her interest-only payment had been, but it was fixed, predictable, and eliminated the looming shock entirely.
The key was that she addressed it 18 months early — while she still had options — rather than after the higher payments had already started.
Is Your HELOC Draw Period Coming to an End?
If your HELOC draw period is approaching its end, the worst thing you can do is wait until the higher payments start to think about your options. The borrowers who handle this transition smoothly are the ones who plan for it well in advance.
If you have a HELOC nearing the end of its draw period and want to understand your options before payment shock hits, submit your information through our contact page and I’ll review your situation directly.