In this guide
- What the draw period actually is
- The two phases side by side
- How interest-only payments work
- Payment shock: what happens when the draw period ends
- Worked example: Rachel's HELOC over 20 years
- Your last 12 months: a practical action plan
- Your options when the draw period ends
- How variable rates affect your draw period
- Frequently asked questions
The draw period is the feature that makes a HELOC different from almost every other type of borrowing. For typically ten years, you can borrow, repay, and borrow again — up to your approved limit — and your minimum payment is interest only on whatever you've actually used. It's the flexibility that makes HELOCs so well-suited to renovation projects, ongoing expenses, or emergency reserves.
But the draw period ends. And when it does, your payment changes — often significantly. Understanding exactly how both phases work, and what you should be doing in the months before the transition, is the difference between a HELOC that works for you and one that catches you off guard.
What the draw period actually is
When a lender approves you for a HELOC, they're giving you access to a revolving line of credit — not a lump-sum loan. The draw period is the window during which that line is open and accessible. You can draw funds as needed, repay them, and draw again, exactly like a credit card — except at far lower interest rates and secured against your home equity.
The standard draw period is ten years, though some lenders offer five-year or fifteen-year draw periods depending on their products. During this time, most lenders require only interest-only minimum payments — meaning your required monthly payment covers only the interest accruing on your outstanding balance. You are not required to pay down the principal, though you can make voluntary principal payments at any time (and doing so is usually wise).
A HELOC is a revolving line of credit. If you draw $20,000, then repay $15,000, you have $15,000 of that draw back available to use again. This is fundamentally different from a home equity loan, where you receive a fixed lump sum and cannot re-borrow repaid amounts. The revolving structure is what makes the draw period so flexible — and why so many homeowners use it for multi-stage projects or ongoing needs.
The two phases side by side
Every HELOC has two distinct phases. Here's what each one means for how you borrow and what you pay.
Phase 1
Draw Period
- Typically 10 years (some lenders: 5 or 15)
- Borrow, repay, and re-borrow up to your limit
- Minimum payment = interest only on balance used
- Voluntary principal payments allowed anytime
- Rate is variable — tied to the prime rate
- Balance can be fixed-rate locked at many lenders
Phase 2
Repayment Period
- Typically 10–20 years
- Line closes — no more draws allowed
- Payments include both principal and interest
- Balance amortises to zero over the repayment term
- Monthly payment is higher — often significantly so
- Fixed-rate conversion usually no longer available
The total loan term — draw period plus repayment period — is typically 20 to 30 years. A standard structure is 10 years draw + 20 years repayment = 30 years total. Some lenders offer 10+10 (20 years total), which means a higher repayment-phase payment as the balance amortises over a shorter period.
How interest-only payments work during the draw period
The formula for your draw-period minimum payment is straightforward:
Monthly payment = (Outstanding balance × Annual interest rate) ÷ 12
So if you've drawn $45,000 at a current rate of 7.43%, your monthly interest-only payment is: ($45,000 × 0.0743) ÷ 12 = $278.63.
Notice two things about this. First, your payment fluctuates with the prime rate — if rates rise, your payment rises. Second, your payment also changes with your outstanding balance. If you repay $10,000 of the $45,000 draw, your new payment drops to ($35,000 × 0.0743) ÷ 12 = $216.71. Conversely, if you draw more, your payment increases.
The interest-only minimum is not a target — it's a floor. Every dollar of principal you pay down during the draw period reduces your outstanding balance going into the repayment phase, which directly reduces your payment shock. Even an extra $200–$300 a month toward principal over a 10-year draw period can make a material difference to what you face at the transition. Most lenders allow this with no prepayment penalty.
Payment shock: what happens when the draw period ends
Payment shock is the term used to describe the sudden jump in monthly payments when a HELOC transitions from the draw period to the repayment period. It is called "shock" for a reason: the increase is immediate and there is no gradual ramp-up. On the day the draw period ends, your minimum payment resets to the fully amortising amount.
The Consumer Financial Protection Bureau (CFPB) specifically highlights this two-phase payment structure as one of the primary risks homeowners should understand before opening a HELOC. Regulators have also issued guidance on the matter — the Federal Reserve's interagency guidance on HELOCs nearing end-of-draw periods (federalreserve.gov) underscores that lenders should proactively prepare borrowers for this transition.
Here is what payment shock looks like in concrete numbers at a range of balances, using a rate of 7.43% and a 20-year repayment term:
| Outstanding balance at transition | Draw-period payment (interest only) | Repayment-period payment (P+I, 20 yrs) | Monthly increase | % increase |
|---|---|---|---|---|
| $20,000 | $124 | $159 | +$35 | +28% |
| $40,000 | $248 | $318 | +$70 | +28% |
| $60,000 | $372 | $477 | +$105 | +28% |
| $80,000 | $495 | $636 | +$141 | +28% |
| $100,000 | $619 | $795 | +$176 | +28% |
Calculations based on 7.43% APR (Bankrate national average) and a 20-year repayment period. Actual payments will vary with your rate at transition and your lender's specific repayment term.
On a 10-year repayment term (rather than 20), the payments in the right-hand column are significantly higher still — because you're paying off the same balance in half the time. Always check whether your HELOC uses a 10-year or 20-year repayment term, as this has a large impact on the payment step-up.
Independent analysis and multiple lender sources put the typical payment increase at 25%–80% at the draw-to-repayment transition, depending on the outstanding balance, current rate, and the length of the repayment term. Borrowers with shorter repayment periods (10 years) and larger balances face the highest step-ups. The time to plan for this is now — not in year nine of your draw period.
Worked example: Rachel's HELOC over 20 years
Worked example
Rachel in Denver — a renovation HELOC from opening to payoff
Rachel opens a $75,000 HELOC to fund a kitchen and bathroom renovation. Her draw period is 10 years, and her repayment period is 20 years. She draws $58,000 over the first two years at an initial rate of 5.50%, uses the revolving structure to repay $10,000, and draws a further $8,000 for bathroom work. Two years in, her balance is $56,000.
During the draw period she pays interest only, and makes occasional voluntary principal payments — an extra $150/month when she can afford it. By the time her draw period ends, her outstanding balance has reduced to $48,000 (from $56,000 — her voluntary payments knocked off $8,000). The current rate is 7.43%.
Rachel's $150/month voluntary principal payments during the draw period reduced her balance by $8,000 — saving her approximately $11 per month in the repayment phase. More importantly, they reduced her total interest cost over the life of the loan by several thousand dollars. The step-up from $297 to $382 is manageable with planning. Had she not made those extra payments, her balance would be $56,000 and her repayment payment would be $447 — a $150/month step-up instead of $85.
Voluntary principal payments during the draw period don't just reduce interest costs — they directly reduce the payment shock at transition. Every $10,000 of principal paid off during the draw period reduces the repayment-phase payment by approximately $79/month (at 7.43% over 20 years). That's a meaningful return on disciplined repayment.
Your last 12 months: a practical action plan
If you're within 12 months of your HELOC draw period ending, this section is specifically for you. The transition to repayment is manageable with preparation — and significantly harder if you leave it until the first repayment statement arrives.
Lenders are required to notify you before the draw period ends, and most do so at least six months in advance. Industry guidance recommends proactively contacting your lender to discuss your options well before the transition date. Don't wait for the letter — start your review now.
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1
Find your exact transition date
Your draw period end date is printed on your monthly HELOC statement — usually in the upper right. If you don't have a statement to hand, call your lender directly and ask for the end-of-draw date. Write it down. This is the single most important number in your planning.
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2
Calculate your repayment-phase payment
Using your current outstanding balance, your current rate, and your lender's repayment term, calculate what your new payment will be. You can use the formula: Monthly payment = Balance × [r(1+r)ⁿ / ((1+r)ⁿ−1)] where r = monthly rate and n = repayment months. Or use our HELOC calculator for an instant estimate. Know the number before it arrives on a statement.
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3
Make a lump-sum principal payment if you can
If you have savings available, now is the optimal time to pay down your HELOC balance before the transition. Every $10,000 paid off reduces your repayment-phase payment by approximately $79/month (at 7.43% over 20 years) — and reduces your total interest cost over the remaining life of the loan. This is a better return than most savings accounts in the current rate environment.
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4
Contact your lender to discuss your options
Your lender may offer options you don't know about: a modified repayment schedule, a temporary interest-only extension, or a refinance into a fixed-rate home equity loan. According to the Federal Reserve's interagency guidance, lenders should have trained representatives who can walk you through these options. Call — don't wait to be called. Your options narrow significantly if you contact them after you've missed a payment.
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5
Build the new payment into your budget now
Don't wait until the first repayment statement to adjust your spending. Start living with the new, higher payment in your budget today — put the difference between your current interest-only payment and the projected repayment amount into a savings account each month. When the transition happens, it won't be a shock. And if you decide to refinance instead, you'll have built up a useful cash reserve in the meantime.
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6
Stop drawing on the line
Within 12 months of the draw period ending, avoid adding to your balance. Every dollar you draw now is a dollar you'll immediately be repaying with principal. If you have an upcoming expense that needs funding, weigh it carefully — borrowing more in the final months of the draw period amplifies your payment shock at transition.
Your options when the draw period ends
Entering the repayment period is the default outcome — but it isn't your only option. Here are the four paths available to most borrowers as the draw period closes.
Option 1 — Enter the repayment period
The default path. Your line closes, and you begin making full principal-and-interest payments over the repayment term. No action required — this happens automatically. Best option if the payment is affordable and your rate is reasonable.
Option 2 — Open a new HELOC
Some lenders allow you to refinance your existing HELOC into a new one, restarting the draw period. You'll need to qualify again under current underwriting standards. This delays repayment but doesn't eliminate it — and rates and terms may have changed. Useful if you need continued access to funds.
Option 3 — Refinance into a home equity loan
Convert your outstanding HELOC balance into a fixed-rate home equity loan. You lose the revolving access but gain payment certainty — your rate and monthly payment are fixed for the life of the loan. A good option if variable-rate risk is a concern. Rates for home equity loans are currently close to HELOC rates.
Option 4 — Cash-out refinance
Refinance your primary mortgage for a higher amount and use the proceeds to pay off the HELOC entirely. This consolidates everything into one payment but replaces your existing mortgage rate. Only makes financial sense if the new rate is competitive with what you currently pay on the mortgage.
Once the draw period ends, the line of credit is permanently closed. You cannot make additional draws against the same HELOC, even if you have an available balance. If you realise mid-repayment that you need additional funds, you will need to apply for a new loan product — a new HELOC, a home equity loan, or another form of credit. This is why drawing what you actually need during the draw period — not the maximum you're approved for — is important.
How variable rates affect your draw period
Almost all HELOCs carry a variable interest rate, typically expressed as the Wall Street Journal Prime Rate plus a lender margin. The prime rate currently sits at 6.75%, based on the Federal Reserve H.15 statistical release. A HELOC at prime + 0.75% would therefore carry a current rate of 7.50%.
During the draw period, your rate — and therefore your interest-only payment — can move up or down with every Federal Reserve rate decision. The FOMC meets eight times a year and publishes its calendar at federalreserve.gov. Most HELOC rate changes take effect within one to two billing cycles of a Fed decision.
The fixed-rate conversion option
Many lenders now offer the ability to lock in a fixed rate on all or part of your outstanding HELOC balance during the draw period — converting a portion of the variable-rate line into something that behaves more like a home equity loan. The fixed rate is typically 0.25%–0.75% higher than the current variable rate, but it removes uncertainty. This option is generally closed once you enter the repayment period, so if you're considering it, act during the draw phase.