HELOC Payment Calculator
Calculate monthly payments for a Home Equity Line of Credit during draw and repayment periods. Model variable rate scenarios.
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HELOC Decision Support System
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How a HELOC Actually Works
DIRECT ANSWERThe short answer: A HELOC is a revolving line of credit secured by your home. You get approved for a credit limit (typically up to 80–85% of your home's value, minus your first mortgage), and you borrow only what you need, when you need it. At today's 7.07% average HELOC rate (Bankrate, April 15, 2026), a $50,000 balance costs about $294/month in interest-only payments during the draw period.
Two distinct phases define a HELOC: a draw period (usually 10 years) where you borrow up to the limit and pay interest only, and a repayment period (usually 10–20 years) where the line closes and you pay full principal + interest on whatever balance remains. The payment jump between phases is often 2–3x — a $50,000 balance at 7% jumps from $294/mo interest-only to ~$580/mo once repayment starts.
The uncomfortable truth: HELOCs are variable-rate debt. Your rate is Prime (currently 7.50%) plus a margin (typically −0.5% to +2%). If the Fed raises rates by 1%, your HELOC rate rises by 1% within one billing cycle. Borrowers who got 4% HELOCs in 2021 are paying 7%+ today — and the monthly payment jumped accordingly.
How Does Your HELOC Compare?
UPDATES LIVEShowing median HELOC draw period payment. Click Calculate to see your numbers.
HELOC Benchmarks
LIVE DATA fincalcs.coSource: Bankrate, Federal Reserve, CFPB 2026
Current HELOC & Home Equity Loan Rates
LIVE DATAHELOC rates are tied to the Prime Rate (7.50%), which tracks the Federal Reserve's federal funds rate. Home equity loans carry fixed rates, typically 50–100 basis points above HELOCs.
| Product | Avg Rate (Apr 15, 2026) | Range | Rate Type |
|---|---|---|---|
| HELOC (national avg) | 7.07% | 6.05% – 8.15% | Variable (Prime + margin) |
| HELOC (introductory) | 5.99% | 5.99% – 6.50% | Variable after intro period |
| Home Equity Loan (10-yr) | 8.06% | 7.49% – 8.49% | Fixed |
| Home Equity Loan (15-yr) | 8.03% | 7.55% – 8.62% | Fixed |
| Cash-out Refinance (30yr) | 7.08% | 6.50% – 7.50% | Fixed |
| Prime Rate (benchmark) | 7.50% | — | Set by largest banks |
Sources: Bankrate National Average Survey (Apr 15, 2026); Federal Reserve H.15 Selected Interest Rates; Money.com home equity rate tracker. Rates based on $30,000 credit line, 700+ FICO, 80% combined loan-to-value.
Rate watch: The Fed's next FOMC meeting is April 28–29, 2026. Bankrate forecasts three quarter-point Fed cuts in 2026, which would pull HELOC rates down ~0.75% to roughly 6.32% by year-end. Each Fed cut lowers your variable HELOC rate by the same amount within one billing cycle.
When a HELOC Makes Sense — and When It Doesn't
Good HELOC use: Home improvements with clear ROI, debt consolidation from 20%+ credit cards, funding a known-cost expense you can repay within the draw period, bridge financing while selling one home to buy another.
Bad HELOC use: Vehicles (they depreciate — you end up with 30-year debt on a 5-year asset), vacations, speculative investing, routine lifestyle expenses. If you can't describe exactly how and when the borrowed money will be repaid, don't tap home equity for it.
HELOC vs Home Equity Loan vs Cash-Out Refi: A HELOC wins when your needs are uncertain and variable (ongoing renovation). A home equity loan wins for fixed, known expenses (one-time consolidation). A cash-out refi wins when you want a single payment, fixed rate, and are already considering refinancing your first mortgage.
The tax-deduction caveat: HELOC interest is tax-deductible only if the proceeds are used to "buy, build, or substantially improve" the home securing the loan (TCJA rules through 2025, under discussion for renewal). Using a HELOC for debt consolidation or vacation means no deduction — plan accordingly.
Draw vs Repayment Payment Comparison
SENSITIVITYWhat the same balance costs during draw period (interest-only) vs repayment (20-year P+I). The jump surprises most borrowers.
| Balance | Draw @ 7.07% | Repayment (20yr P+I) | Payment Jump | Total Interest (30yr) |
|---|---|---|---|---|
| $25,000 | $147/mo | $193/mo | +31% | $21,300 |
| $50,000 | $294/mo | $386/mo | +31% | $42,700 |
| $100,000 | $589/mo | $773/mo | +31% | $85,400 |
| $150,000 | $884/mo | $1,159/mo | +31% | $128,100 |
| $200,000 | $1,178/mo | $1,545/mo | +31% | $170,800 |
Key insight: Interest-only payments make HELOCs feel affordable during the draw period, but if you never pay down principal, the "payment shock" at year 10 is 30–40% more — and the clock to full payoff is now compressed to 20 years. Ideally, pay some principal during the draw period.
Variable rate risk: The rates shown assume today's 7.07%. If Prime rises 1% during your draw period, add ~$42/month per $50K balance. If it rises 2%, add ~$83/month. Budget for rate volatility.
HELOC vs Alternatives
COMPARISONHow HELOCs stack up against other ways to borrow for $50,000 over 10 years.
| Option | Avg Rate | Rate Type | Collateral | Total Interest Cost |
|---|---|---|---|---|
| HELOC | 7.07% | Variable | Home | ~$20,200 (if balance maintained) |
| Home Equity Loan | 8.06% | Fixed | Home | $22,700 |
| Cash-Out Refinance | 7.08% | Fixed | Home (replaces 1st) | $20,300 (first mortgage terms) |
| Personal Loan | 12.0% | Fixed | None | $36,100 |
| 0% APR Credit Card | 0% → 24%+ | Promotional | None | Free if paid in intro period; punishing if not |
| 401(k) Loan | Prime + 1% (~8.50%) | Fixed | Retirement | Paid to yourself — but opportunity cost of market returns |
Sources: Bankrate, LendingTree personal loan 2026 averages, Federal Reserve G.19 consumer credit series. 401(k) loan rules per IRC Section 72(p).
Rule of thumb: HELOC wins when needs are flexible and you'll pay down aggressively. Home equity loan wins when you want a fixed rate and one-time lump sum. Cash-out refi wins when you're refinancing anyway.
The Math Behind a HELOC
TRANSPARENT1. Maximum line = Home Value × CLTV − First Mortgage
MaxLine = HomeValue × CLTV% − FirstMortgage On a $500K home with $300K first mortgage and 85% CLTV max: $500K × 0.85 − $300K = $125,000 available.
2. Rate = Prime + Margin
YourRate = Prime + Margin Prime is currently 7.50%. A margin of −0.50% gives you 7.00%, a margin of +1.00% gives you 8.50%. Margins vary by lender, credit, and LTV — shop for lowest.
3. Draw-period payment (interest-only)
DrawPay = Balance × Rate / 12 On a $50K balance at 7.07%: $50,000 × 0.0707 / 12 = $294/month. Note: balance is what you've actually drawn, not your credit limit.
4. Repayment-period payment (amortizing P+I)
RepayPay = Balance × [r(1+r)^n] / [(1+r)^n − 1] Same amortization formula as a first mortgage, applied to whatever balance remains when the draw period ends, over the repayment term (typically 20 years).
How a HELOC Connects to Your Plan
CONNECTEDHELOCs interact with refinancing, debt consolidation, tax strategy, and emergency planning.
HELOC Readiness Matrix
Five checks before you sign for a HELOC.
| Factor | Status | Benchmark | What To Do |
|---|---|---|---|
| Combined LTV | Gate | ≤80% for best rates | CLTV above 80% often adds 0.5–1% to your rate. Lenders cap most HELOCs at 85% CLTV. |
| Credit score | Lever | 740+ for best rates | Each 20-point band below 740 typically adds 0.25% to your margin. Pull your report before applying. |
| Debt-to-income | Cap | ≤43% total DTI | Lenders count the fully-drawn HELOC payment in DTI, not just what you plan to use. Pay down cards first. |
| Use case | Quality | Home improvement / consolidation | Home improvement may qualify for tax-deductible interest (through 2025). Consumer spending = no deduction. |
| Payoff plan | Stress test | Repay before draw ends | Plan to pay down principal during the draw period — not just interest — so the repayment jump doesn't sting. |
Five HELOC Mistakes to Avoid
| The Mistake | What It Actually Costs |
|---|---|
| Treating a HELOC like checking Drawing for routine expenses | Lifestyle on 7% debt Routine spending funded by HELOC means you've converted disposable income into 20+ year debt. If you can't pay it off in the draw period, the repayment shock bites. |
| Only paying interest during draw period Watching balance grow without principal paydown | Payment jumps 30–40% at year 10 If you never pay down principal, the full balance amortizes over 20 years — a $50K balance at 7% jumps from $294/mo to $386/mo overnight. Pay some principal during draw. |
| Ignoring variable-rate risk Budgeting on current rate indefinitely | 2020–2024 scenario: 3.5% → 9% Borrowers with 2021 HELOCs saw rates roughly double as the Fed raised rates. Stress-test your budget against Prime + 2% to see if the loan still works. |
| Using HELOC for depreciating assets Cars, boats, vacations | 30yr debt on 5yr asset A car financed via HELOC is debt outliving the thing it bought. Personal loans or auto loans are purpose-built for shorter assets. |
| Not shopping margins Accepting first lender's offer | 0.5–1.5% lifetime spread Banks, credit unions, and online lenders price HELOC margins differently. On $100K over 15 years, 1% is $15,000. Shop at least 3 lenders. |
Sources: CFPB HELOC complaint data 2024, TransUnion HELOC origination trends Q3 2025, Bankrate 2026 home equity rate forecast.
What Should You Do Next?
UPDATES LIVEThree actions before you open a HELOC.
Prime Rate moves, Fed decisions, HELOC rate watch every Monday.
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This calculator is for informational and educational purposes only. Results are estimates based on the information you provide and standard financial formulas. This is not financial advice. Consult a qualified financial advisor for decisions specific to your situation. Full Disclaimer
Learn More About HELOCs
Things to Know
Essential concepts for understanding your results
Draw PeriodHow does a HELOC draw period work?
A HELOC has two phases: the draw period (typically 10 years) where you can borrow up to your credit limit and make interest-only payments, and the repayment period (10-20 years) where you repay principal plus interest. During the draw period, a $50,000 HELOC at 8% costs as little as $333/month (interest-only). When repayment begins, payment jumps to $580/month for a 15-year term — a 74% increase that catches many borrowers off guard.
Variable RateHow does the variable rate affect HELOC payments?
Most HELOCs have variable rates tied to the prime rate plus a margin (0-2%). When the Fed raises rates, your HELOC payment increases immediately. A $50,000 balance: at 7% = $292/month interest, at 9% = $375, at 11% = $458. Rate caps (typically 18% lifetime) provide some protection but allow significant payment increases. Consider a fixed-rate home equity loan instead if you need payment predictability.
Best UsesWhat are the best and worst uses for a HELOC?
Good uses: home improvements that increase value, emergency access (use only when needed), short-term bridge financing. Bad uses: funding vacations, buying cars, covering ongoing budget shortfalls, consolidating debt without behavior change. The critical risk: a HELOC is secured by your home — defaulting can lead to foreclosure. Never use a HELOC to convert unsecured debt (credit cards) into secured debt unless you are certain you can repay.
Tax RulesIs HELOC interest tax-deductible?
HELOC interest is deductible only if the funds are used to buy, build, or substantially improve the home securing the loan. A $40,000 HELOC for a kitchen renovation: deductible. The same $40,000 for debt consolidation: not deductible. Combined mortgage debt limit for the deduction: $750,000. You must itemize to claim — approximately 12% of taxpayers benefit. Keep records of how HELOC funds are spent to support the deduction if audited.
HELOC Payment Calculator: Estimate Your Home Equity Line of Credit Costs
A HELOC (Home Equity Line of Credit) payment calculator estimates your monthly payment, total interest cost, and borrowing capacity based on your home equity, credit score, and current rates. A HELOC lets you borrow against your home equity as needed — functioning like a credit card secured by your house, but at much lower interest rates.
Enter your home value, mortgage balance, desired credit line, and interest rate above. The calculator shows your available equity, monthly payment during the draw period, and the higher payment during the repayment period.
How HELOCs Work: Two Phases
Draw period (typically 5-10 years): Borrow as needed up to your credit limit, pay interest only on the amount borrowed. Minimum payment: interest only. A $50,000 HELOC at 8.5% with $30,000 drawn: interest-only payment = $30,000 × 0.085 ÷ 12 = $213/month. You can repay and reborrow during this phase — the credit line revolves.
Repayment period (typically 10-20 years): No more borrowing. Outstanding balance converts to a fully amortizing loan. The payment increases significantly because you are now paying principal + interest. That $30,000 at 8.5% over 15 years: $296/month (39% higher than interest-only). Many borrowers are shocked by this payment jump — plan for it before you borrow.
Current HELOC rates (2026): HELOCs use variable rates tied to the Prime rate. Current: approximately 8.0-9.5% (Prime 7.5% + 0.5-2.0% margin depending on credit and LTV). Rates adjust monthly or quarterly with Prime. If the Fed cuts rates, your HELOC payment decreases automatically — a significant advantage over fixed home equity loans when rates are falling.
How Much Can You Borrow?
Lenders allow a combined LTV (mortgage + HELOC) of 80-90% of home value:
Example: Home value $450,000. Mortgage balance $280,000. At 85% CLTV: maximum total debt = $450,000 × 0.85 = $382,500. Available HELOC: $382,500 - $280,000 = $102,500.
| Home Value | Mortgage Balance | Available HELOC (85% CLTV) |
|---|---|---|
| $300,000 | $200,000 | $55,000 |
| $400,000 | $250,000 | $90,000 |
| $500,000 | $300,000 | $125,000 |
| $600,000 | $350,000 | $160,000 |
| $750,000 | $400,000 | $237,500 |
HELOC vs Home Equity Loan vs Cash-Out Refinance
HELOC: Variable rate, revolving credit, borrow as needed, interest only during draw period. Best for: ongoing expenses (renovation phases, tuition payments) or emergency access. Risk: variable rate can increase.
Home equity loan: Fixed rate, lump sum, fixed monthly payment. Best for: one-time expense with known cost (specific renovation, debt consolidation). Advantage: payment never changes. Rate: typically 0.5-1.0% higher than HELOC initial rate.
Cash-out refinance: Replace your entire mortgage with a larger one, taking the difference in cash. Best for: when you can refinance at a lower rate than your current mortgage AND need cash. Disadvantage: closing costs of 2-5% on the entire new loan amount, resetting your mortgage term.
Tax deductibility: HELOC interest is deductible only if the funds are used to "buy, build, or substantially improve" the home securing the loan (Tax Cuts and Jobs Act 2017). Using HELOC for debt consolidation, tuition, or other purposes: interest is NOT deductible. Combined mortgage + HELOC interest deduction is limited to $750,000 in total acquisition debt.
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