HELOC Payment Calculator
Estimate your home equity line of credit payments during both the draw period and the repayment period. See your available equity, interest-only costs, and full amortized payments side by side.
A HELOC calculator converts your home value, mortgage balance, draw amount, and APR into two critical numbers: what you'll pay during the interest-only draw period and what you'll owe each month during the full repayment phase. According to CoreLogic's Q3 2025 Homeowner Equity Report, the average homeowner with a mortgage holds $311,000 in tappable equity — but the payment jump from draw period to repayment catches many borrowers off guard.
bolt Quick Answer
A HELOC calculator computes two phases: the draw period (typically 10 years, interest-only) and the repayment period (10–20 years, fully amortized). For a $50,000 draw at 8.45% APR, the draw-period payment is approximately $354/month — then jumps to roughly $617/month during a 20-year repayment period. Most lenders allow you to borrow up to 80–85% of your home value minus your mortgage balance. Average HELOC APR: 8.45% (Bankrate, January 2026).
tips_and_updates Key Takeaways
- check_circle HELOC rates are variable and tied to Prime Rate — currently averaging 8.45% (Bankrate, January 2026).
- check_circle Most lenders allow you to borrow up to 80–85% of your home's value minus your outstanding mortgage balance.
- check_circle During the draw period you typically pay interest only — repayment period payments are significantly higher.
- check_circle The average homeowner has $311,000 in tappable equity available (CoreLogic Q3 2025).
- check_circle HELOCs are best for ongoing expenses (renovations, tuition) vs. lump-sum needs where a home equity loan may be preferable.
Estimate Your Home Equity Line of Credit Payments
Enter your home value, mortgage balance, draw amount, APR, and period lengths to see draw-period and repayment-period payments instantly.
Draw amount capped at available equity.
Available Home Equity
Home value × 85% − mortgage balance
Draw Period Payment (Interest-Only)
per month for 10 years
Payment Phase Comparison
Soft credit check — no impact to your score.
Why Estimate HELOC Payments Before You Apply?
Avoid Payment Shock
Draw-period payments are interest-only and low. When the repayment period starts, payments can double or triple. Calculate both upfront so there are no surprises.
Compare Lender Offers
HELOC margins vary by lender. A 0.50% difference in APR on a $75,000 line saves over $2,200 in interest over 20 years. Run your numbers before you shop.
No Data Submitted
All calculations run locally in your browser. No personal information is ever transmitted, stored, or used — just instant, accurate HELOC estimates.
How HELOC Payments Are Calculated
A HELOC has two distinct phases, each with a different payment structure. Understanding both is essential before you tap your home's equity.
Draw Period (typically 5–10 years): You borrow from the line of credit as needed, up to your approved limit. Most lenders require interest-only payments during this phase. The formula is simple: monthly payment = outstanding balance × (APR ÷ 12). If you draw $50,000 at 8.5% APR, your monthly interest-only payment is $354.17. Because you're not reducing principal, the balance and payment stay flat — unless the Prime Rate changes, which immediately moves your variable APR.
Repayment Period (typically 10–20 years): The draw period closes and the full outstanding balance is amortized over the remaining repayment term. Using the standard amortization formula, your monthly payment now covers both interest and principal. The same $50,000 balance at 8.5% APR over a 20-year repayment period produces a monthly payment of $434.78 — a $80 increase from the draw period in this scenario, but differences widen dramatically with shorter repayment terms or higher balances.
Key Rate Data
The Fed held rates at 4.25%–4.50% at the December 2025 FOMC meeting, keeping Prime at 7.50%. With lender margins of roughly 0.95%, the average HELOC APR reached 8.45% in January 2026 (Bankrate). Borrowers with 760+ credit scores can often secure rates in the 8.00%–8.50% range, while those below 640 may see 11%–14% or higher.
HELOC vs. Home Equity Loan: Which Is Right for You?
Both products let you borrow against your home's equity, but they serve different financial needs. The right choice depends on whether you need flexibility or predictability.
| Feature | HELOC | Home Equity Loan |
|---|---|---|
| Rate Type | Variable (Prime + margin) | Fixed |
| Disbursement | Revolving draw as needed | Lump sum upfront |
| Draw Period Payments | Interest-only (typically) | Full P+I from day 1 |
| Flexibility | High — draw what you need | Low — fixed amount |
| Payment Predictability | Low — rate fluctuates | High — fixed payments |
| Best Use Case | Ongoing renovations, tuition | One-time large expense |
Sources: Consumer Financial Protection Bureau (CFPB); Bankrate HELOC Rate Roundup, January 2026.
How to Qualify for the Best HELOC Rate in 2026
HELOC lenders evaluate three primary factors: your credit score, your combined loan-to-value ratio (CLTV), and your debt-to-income ratio (DTI). Meeting thresholds in all three areas determines both your approval odds and your APR margin.
| Credit Tier | Score | Typical HELOC APR |
|---|---|---|
| Excellent | 760+ | 8.00%–8.50% |
| Good | 700–759 | 8.50%–9.50% |
| Fair | 640–699 | 9.50%–11.00% |
| Poor | Below 640 | 11.00%–14.00%+ |
Source: Bankrate HELOC Rate Roundup, January 2026. Prime Rate 7.50% (Fed December 2025 FOMC).
- chevron_right Credit score 720+ — most lenders require a minimum of 620–680, but rates improve significantly above 720 and meaningfully again above 760.
- chevron_right CLTV below 80–85% — combined loan-to-value is your first mortgage plus the HELOC line divided by your home's appraised value. Most lenders cap at 80–85%.
- chevron_right DTI below 43% — most lenders require a debt-to-income ratio at or below 43%, including the new HELOC payment. Lower DTI unlocks better margins.
- chevron_right Shop at least 3 lenders — 65% of HELOC borrowers use funds for home improvements (Experian 2025). Banks, credit unions, and online lenders can differ by 0.5–1.5% on the same profile.
HELOC Calculator FAQs
What is a HELOC and how does it work? expand_more
A home equity line of credit (HELOC) is a revolving credit line secured by your home's equity. During the draw period — typically 5 to 10 years — you can borrow, repay, and re-borrow up to your credit limit, paying interest only on what you use. After the draw period ends, the repayment period begins (usually 10–20 years), during which you can no longer draw funds and must repay the outstanding balance in full amortized monthly payments. The credit limit is generally set at 80–85% of your home's appraised value minus your outstanding mortgage balance.
How is a HELOC payment calculated? expand_more
During the draw period, most HELOCs require interest-only payments: multiply your outstanding balance by the monthly interest rate (APR ÷ 12). For example, a $50,000 draw at 8.5% APR produces an interest-only payment of roughly $354/month. During the repayment period, the remaining balance is fully amortized over 10–20 years using the standard loan payment formula — the same math used for a fixed mortgage. Because your principal is now shrinking instead of staying flat, repayment-period payments are significantly higher than draw-period payments.
What is the average HELOC rate in 2026? expand_more
As of January 2026, the average HELOC APR is approximately 8.45%, according to Bankrate's HELOC Rate Roundup. HELOC rates are variable and directly tied to the Prime Rate, which stands at 7.50% following the Federal Reserve's December 2025 FOMC decision to hold the federal funds rate at 4.25%–4.50%. Most lenders set their HELOC rate as Prime plus a margin of roughly 0–2%, so borrowers with excellent credit (760+) can qualify for rates near 8.00%–8.50%, while fair-credit borrowers may pay 9.50%–11.00% or more.
HELOC vs. home equity loan: what's the difference? expand_more
A HELOC is a revolving line of credit with a variable interest rate, meaning your payment fluctuates with market rates. You draw only what you need, making it flexible and cost-effective for ongoing projects. A home equity loan (HEL) is a one-time lump sum at a fixed interest rate, with equal monthly payments from day one — similar to a second mortgage. HELOCs are generally better for renovations, education, or any multi-phase expense where you draw funds over time. Home equity loans are better when you need a specific, known amount and want payment predictability.
Can my HELOC rate increase after I open the line? expand_more
Yes. HELOC rates are variable and tied to the Prime Rate, which moves in lock-step with Federal Reserve rate decisions. If the Fed raises rates, your HELOC APR and monthly payment will increase, sometimes within a single billing cycle. Most HELOCs have lifetime rate caps (often 18%) and periodic caps (commonly 2% per year), but you should always budget for potential rate increases. Use this calculator to model scenarios at higher APRs to ensure you can afford the payments if rates rise.
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