HELOC Calculator
Calculate HELOC payments across draw and repayment periods, estimate your maximum credit line, and compare costs with home equity loans and cash-out refinancing.
Your Monthly EMI
โน1,840
Principal
โน1,50,000
Total Interest
โน70,775
Total Payable
โน2,20,775
Breakdown
Principal: โน1,50,000 (68%)
Total Interest: โน70,775 (32%)
Interest-to-Principal: 47.2%
๐ Interactive EMI Breakdown
Principal vs Interest
Year-by-Year Payment Split
Loan Scenario Comparison
| Metric | Your plan | +1% Interest (9.3%) | +12 Months (132mo) |
|---|---|---|---|
| Monthly EMI | โน1,840 | โน1,920 โ โน80 | โน1,733 โ โน107 |
| Total Interest | โน70,775 | โน80,459 โ โน9,684 | โน78,700 โ โน7,925 |
| Total Payable | โน2,20,775 | โน2,30,459 | โน2,28,700 |
๐ How HELOC is Calculated
Determine credit limit
$500,000 home ร 85% LTV โ $250,000 mortgage= HELOC limit: $175,000
Draw period payment
$100,000 drawn ร (8.25% / 12)= $687/mo (interest-only)
Repayment period payment
PMT(9%/12, 240 months, $100,000)= $900/mo (P&I)
Total cost over 30 years
$687ร120 + $900ร240 + $1,500 closing + $50ร30 annual= $300,940 total
Rate Comparison
HELOC
8.25% variable
Draw as needed | Interest-only initially | 10+20 yr
Home Equity Loan
8.5% fixed
Lump sum | Fixed P&I | 15 yr
Cash-Out Refinance
6.8% fixed
Replaces mortgage | Full closing costs
Payment Shock Warning
๐ก What Is a HELOC (Home Equity Line of Credit)?
How a HELOC Works: Two Phases
A HELOC operates in two distinct phases, each with different rules and payment structures:
| Draw Period | Repayment Period | |
|---|---|---|
| Duration | 5-10 years (typically 10) | 10-20 years (typically 20) |
| Borrowing | Draw up to limit, repay, reborrow | No new draws allowed |
| Payment | Interest-only (minimum) | Principal + Interest |
| Rate | Variable (Prime + margin) | Variable (Prime + margin) |
| Balance | Can stay flat or grow | Must reach $0 by end |
HELOC Interest Rate Structure
HELOC rates are variable and typically calculated as: HELOC Rate = Prime Rate + Margin. The Prime Rate (currently ~8.5% as of 2024) is set by major banks and moves with the Federal Funds Rate. The margin (0.5-2%) is set by the lender based on your creditworthiness. If the Fed raises rates by 0.25%, your HELOC rate increases 0.25%.
Most HELOCs have rate caps: a lifetime cap (maximum rate ever, typically 18-21%), a periodic cap (max increase per period, typically 2% per year), and sometimes a floor (minimum rate, often the initial rate).
Costs of a HELOC
Upfront costs (1-5% of credit limit):
- Appraisal fee: $300-$600
- Application fee: $0-$500
- Title search: $100-$250
- Origination fee: 0-1% (many lenders waive this)
Ongoing costs:
- Annual fee: $25-$100/year (some lenders waive)
- Transaction fees: $0-$25 per draw (rare)
- Early termination fee: $300-$500 if closed within 2-3 years
- Inactivity fee: some lenders charge if you don't use the line
HELOC vs Home Equity Loan vs Cash-Out Refinance
| HELOC | Home Equity Loan | Cash-Out Refi | |
|---|---|---|---|
| Disbursement | Draw as needed | One-time lump sum | One-time lump sum |
| Rate | Variable (7-9%) | Fixed (8-10%) | Fixed (6-8%) |
| Payment | Interest-only then P&I | Fixed P&I from start | Fixed P&I from start |
| Closing costs | 0-2% (often waived) | 2-5% | 2-6% |
| Flexibility | High (draw/repay/redraw) | None (fixed amount) | None (fixed amount) |
| Risk | Variable rate + payment shock | Predictable payments | Replaces existing mortgage |
| Best for | Ongoing/uncertain expenses | One-time known expenses | Low rates + need cash |
5 Smart Uses for a HELOC
- Phased home renovations โ Draw funds as each phase of renovation starts, pay interest only on amount used
- Education costs โ Draw tuition payments semester by semester instead of borrowing full amount upfront
- Emergency fund backup โ Open a HELOC as standby credit (no cost if unused) for unexpected large expenses
- Bridge financing โ Use HELOC to fund down payment on new home before selling current home
- Business startup costs โ Draw operating capital as needed during early business phase (high risk โ your home is collateral)