🏠 For a $50,000 HELOC at 8.5% APR: draw payment = $354/mo (interest-only), repayment payment = $492/mo (15-year amortizing). Total interest over 25 years = $42,480. Payment jump at repayment = 39%. Enter your details below for exact numbers — free, no signup.
⚠️ HELOC rates are variable. Actual payments may vary. Consult your lender.
📋 Key Takeaways — HELOC Payment at a Glance
Draw period: 5-10 years of interest-only payments
Repayment period: 10-20 years of fully amortizing payments
Typical 2026 HELOC rates: 7.00-10.50% APR (variable, Prime + 0-2%)
Payment jump at repayment: 30-50% increase
CLTV max: 80-85% of home value minus mortgage
Tax-deductible only if funds improve the home
Rates adjust monthly — budget for increases
ℹ️ This free HELOC payment calculator uses 2026 market rates and standard lender formulas. Enter loan amount, APR, draw and repayment periods to get exact monthly payments, total interest and total cost. Updated November 2026.
✅ "The calculator showed me the payment jump ahead of time. I planned for it and had no surprises."
How Much Is My HELOC Payment? (Quick Answer)
For a $50,000 HELOC at 8.5% APR:
Draw period (10 years, interest-only): $354/month
Repayment period (15 years, amortizing): $492/month
Total interest over 25 years: $42,480
Total cost (with $0 fees): $92,480
Payment jump at repayment: 39% ($354 → $492)
Use the calculator above for your exact loan amount, APR, draw and repayment periods.
What is a HELOC Payment Calculator and How Does It Work?
A HELOC payment calculator estimates your monthly payments, interest costs, and total cost of a home equity line of credit. Our HELOC loan payment calculator uses current market rates and standard lender formulas to model both phases of a HELOC: the draw period (interest-only payments) and the repayment period (fully amortizing principal + interest).
How does the calculator work? Enter your HELOC amount, APR, draw period length, repayment period length, and closing costs. The calculator instantly shows your draw-period payment, repayment-period payment, total interest paid in each phase, total cost, payment jump at repayment, and effective APR including fees.
Repayment Period (Fully Amortizing): Monthly Payment = P × [r(1+r)^n] ÷ [(1+r)^n - 1], where P = principal balance, r = monthly rate (APR ÷ 12), n = total number of payments (years × 12).
Current HELOC rates: 7.00% to 10.50% APR. Most HELOCs are variable rate, priced as Prime Rate + margin (typically 0-2%). Prime rate is around 7.50% in 2026. Rates adjust monthly or quarterly based on the Federal Reserve's rate decisions.
Draw period: 5-10 years. During this phase, you can borrow, repay, and re-borrow funds up to your credit limit. Most lenders require interest-only payments during the draw.
Repayment period: 10-20 years. You can no longer borrow, and payments switch to fully amortizing principal + interest, paying off the outstanding balance.
What Happens When the Draw Period Ends?
When the draw period ends, two critical changes occur. First, you can no longer borrow. Second, your payment switches from interest-only to principal + interest, which typically increases your monthly payment by 30-50%. A $50,000 balance at 8.5% goes from ~$354/month (interest-only) to ~$492/month (15-year repayment) — a 39% jump. Many borrowers plan for this by making principal payments during the draw period to reduce the balance at repayment.
How to Calculate Your HELOC Borrowing Limit
Most lenders allow you to borrow up to 80-85% of your home's appraised value, minus your existing mortgage balance (this is the combined loan-to-value or CLTV). Formula: HELOC Available = (Home Value × CLTV%) - Current Mortgage Balance. Example: $400,000 home × 85% = $340,000 max CLTV - $250,000 mortgage = $90,000 HELOC available.
HELOC Interest Tax Deductibility (2026)
HELOC interest is tax-deductible only if the funds are used to buy, build, or substantially improve the home securing the loan. Interest on HELOCs used for debt consolidation, vacations, or personal expenses is not tax-deductible. Always keep receipts and consult a tax professional before claiming the deduction.
HELOC vs Home Equity Loan: Which Is Better?
HELOC is a revolving credit line with variable rate and interest-only draw period. Best for ongoing needs (home improvements, education, debt consolidation) where you need flexible access to funds.
Home Equity Loan is a fixed-rate lump sum with fixed monthly payments. Best for one-time expenses (large purchase, major renovation) where you know the exact amount upfront.
Choose HELOC if: you need flexible access, want to pay interest only on what you use, and can handle variable rates.
Choose Home Equity Loan if: you need a fixed amount, want a predictable monthly payment, and prefer fixed rates.
Why Use Our HELOC Payment Calculator?
Our free HELOC payment calculator is built for accuracy and speed. It runs entirely in your browser — no sign-up, no data stored. The calculator uses standard lender formulas and 2026 market rates to model both draw and repayment periods. Whether you're comparing HELOCs, planning for the payment jump at repayment, or deciding between a HELOC and home equity loan, our calculator delivers professional-grade results in seconds.
❓ Frequently Asked Questions
How is a HELOC monthly payment calculated?
During the draw period, most HELOCs require interest-only payments: Balance × (APR ÷ 12). During repayment, payments are fully amortizing: P × [r(1+r)^n] ÷ [(1+r)^n - 1]. Use the calculator above for exact numbers.
What is a typical HELOC interest rate in 2026?
HELOC rates typically range from 7.00% to 10.50% APR in 2026. Most are Prime Rate + 0-2%. Prime is around 7.50%. Rates are variable and adjust monthly with the Prime Rate.
How long is a HELOC draw period?
Most HELOC draw periods last 5-10 years. During draw, you can borrow, repay and re-borrow up to your credit limit. Repayment period typically lasts 10-20 years after draw ends.
What happens when the HELOC draw period ends?
You can no longer borrow. Payments switch from interest-only to fully amortizing principal + interest, which can increase your monthly payment by 30-50%. A $50,000 balance at 8.5% goes from $354/mo (interest-only) to $492/mo (15-year repayment) — a 39% jump.
Is HELOC interest tax-deductible?
HELOC interest is tax-deductible only if funds are used to buy, build or substantially improve the home securing the loan. Interest on HELOCs used for debt consolidation or personal expenses is not deductible.
How much can I borrow with a HELOC?
Most lenders allow 80-85% of appraised value minus existing mortgage. Example: $400,000 home × 85% = $340,000 max CLTV - $250,000 mortgage = $90,000 HELOC available.
How much is a $50,000 HELOC payment?
A $50,000 HELOC at 8.5% APR: draw period payment = $354/mo (interest-only). Repayment period payment = $492/mo (15-year fully amortizing). Total interest over 25 years = $42,480. Use the calculator above for your exact numbers.
How much is a $100,000 HELOC payment?
A $100,000 HELOC at 8.5% APR: draw payment = $708/mo (interest-only). Repayment payment = $984/mo (15-year amortizing). Total interest = $84,960. Payments roughly double for double the loan amount.
What is the difference between HELOC and home equity loan?
HELOC is a revolving credit line with variable rate and interest-only draw period. Home equity loan is a fixed-rate lump sum with fixed monthly payments. HELOCs are best for ongoing needs; home equity loans for one-time expenses.
Can I pay off my HELOC early?
Yes. Most HELOCs have no prepayment penalty. Making extra principal payments during the draw period reduces your repayment payment and saves thousands in interest. Use the calculator above to see the impact.
What is the payment jump when draw period ends?
Most HELOCs jump 30-50% at repayment because payments switch from interest-only to principal + interest. For a $50,000 balance at 8.5% with 15-year repayment, the jump is 39% ($354 to $492/month).
How do I calculate my HELOC limit?
Formula: HELOC Available = (Home Value × CLTV%) - Mortgage Balance. Most lenders use 80-85% CLTV. Example: $400,000 home × 85% = $340,000 - $250,000 mortgage = $90,000 HELOC available.
💡 Expert Tips for HELOC Borrowers
Tip #1: Make principal payments during the draw period to reduce the payment jump at repayment. Even $100/month extra saves thousands.
Tip #2: Ask your lender about rate discounts (auto-pay, loyalty, initial promotional rates).
Tip #3: Budget for rate increases — HELOC rates are variable and can rise 1-3% over the loan term.
Tip #4: Only use a HELOC for home improvements if you want tax-deductible interest. Debt consolidation is not tax-deductible.
Tip #5: Compare at least 3 lenders before choosing a HELOC. Rates and fees vary significantly.
Tip #6: Plan for the payment jump at repayment — most borrowers see a 30-50% increase.
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🛡️ CDCalculators proprietary HELOC payment calculator — data sources: 2026 mortgage market data, Prime Rate, standard HELOC lender terms. Last updated November 12, 2026. Disclaimer: Estimates only. Always verify terms with your lender.