In this guide
If you own a home and have been paying your mortgage for a few years, you may be sitting on a significant financial resource without realising it — your home equity. A Home Equity Line of Credit (HELOC) is one of the most flexible ways to access that equity, and it works very differently from a regular loan.
Unlike a personal loan where you borrow a fixed amount and immediately start paying interest on all of it, a HELOC lets you draw only what you need, when you need it — and pay interest only on the amount you have actually used. For many homeowners, that distinction is worth thousands of dollars over the life of the credit line.
In this guide, we explain exactly what a HELOC is, how it works in both phases, what it costs, and how to decide whether it is right for your situation.
What is a HELOC?
A HELOC is a revolving line of credit secured against the equity in your home. Think of it like a credit card backed by your house — you are approved for a maximum credit limit based on your home's value and your existing mortgage balance, and you can draw from that limit whenever you need funds, repay it, and draw again during a set period.
Your home equity is simply the difference between what your home is currently worth and what you still owe on your mortgage. For example, if your home is worth $400,000 and you owe $200,000 on your mortgage, you have $200,000 in equity — that is 50% of the home's value.
Lenders do not let you borrow against all of that equity. They typically allow you to borrow up to 80–85% of your home's value in total loans (your mortgage plus the HELOC), leaving a cushion of equity in the property. This limit is called the Combined Loan-to-Value ratio (CLTV).
Home value: $400,000 | Mortgage balance: $200,000 | Lender max CLTV: 85%
Lending ceiling: $400,000 × 85% = $340,000
Maximum HELOC: $340,000 − $200,000 = $140,000
How does a HELOC work?
A HELOC operates in two completely distinct phases: the draw period and the repayment period. Understanding both — and the transition between them — is essential before you apply.
The draw period
During the draw period, which typically lasts 10 years, your HELOC functions like a revolving credit account. You can borrow up to your approved limit, repay funds, and borrow again as many times as you need. You access money via a linked debit card, cheque, or online transfer depending on your lender.
The key feature of the draw period is that you only pay interest on the amount you have actually drawn — not on the full credit limit. If you have a $100,000 HELOC but have only drawn $30,000, you pay interest on $30,000. The remaining $70,000 costs you nothing until you draw it.
Most lenders require interest-only monthly payments during the draw period, which keeps payments low. However, this also means your principal balance does not reduce unless you choose to make additional payments.
The repayment period
Once the draw period ends, you enter the repayment period — typically lasting 10 to 20 years. During this phase you can no longer draw any new funds. Your outstanding balance is now fixed, and you must repay it in full through monthly payments covering both principal and interest.
Because you are now repaying principal as well as interest, and you may have a significant balance built up from the draw period, monthly payments in the repayment period are substantially higher than during the draw period. This jump is known as payment shock, and it is the most common financial difficulty HELOC borrowers face.
Draw period vs repayment period
| Feature | Draw Period | Repayment Period |
|---|---|---|
| Typical length | 5–10 years | 10–20 years |
| Can borrow funds? | Yes | No |
| Monthly payment type | Interest only (usually) | Principal + interest |
| Payment amount | Lower | Significantly higher |
| Balance reduces? | Only if you pay extra | Yes — must reach zero |
| Available credit | Replenishes as you repay | No — line is closed |
Understanding payment shock — the most important thing to plan for
Payment shock is the dramatic increase in monthly payments that occurs when a HELOC transitions from the draw period to the repayment period. Many borrowers are caught off guard because they have spent years making manageable interest-only payments, then suddenly face a much larger fully-amortised payment.
Here is how the numbers look on a $80,000 HELOC balance at a 9.0% rate:
| Phase | Payment type | Monthly payment |
|---|---|---|
| Draw period | Interest only on $80,000 at 9.0% | $600/month |
| Repayment period (20 yr) | Principal + interest on $80,000 at 9.0% | $720/month |
| Repayment period (10 yr) | Principal + interest on $80,000 at 9.0% | $1,013/month |
Before you open a HELOC, calculate what your repayment period payment will be — not just the draw period payment. Use our free HELOC calculator to model both phases. The payment that matters most is the one you will need to sustain for 10–20 years.
HELOC interest rates explained
Most HELOCs carry a variable interest rate tied to the US Prime Rate, which moves directly in response to Federal Reserve policy decisions. When the Fed raises its benchmark rate, the Prime Rate rises with it, and your HELOC rate rises automatically. When the Fed cuts rates, your payment falls.
Your lender adds a fixed margin on top of the Prime Rate to arrive at your personal rate. That margin is set at the time you open the HELOC and does not change — but because the Prime Rate moves, your total rate will fluctuate over time.
Prime Rate (e.g. 8.50%) + Lender margin (e.g. 0.50%) = Your HELOC rate (9.00%)
Source: The US Prime Rate is published by the Federal Reserve in its H.15 statistical release.
The Prime Rate is typically set at 3 percentage points above the Federal Funds Rate target. As of mid-2026, the Prime Rate is approximately 8.50%. Your actual rate will depend on your credit profile and your lender's margin. Always get a personalised quote.
Some lenders offer a fixed-rate conversion option that lets you lock in a rate on all or part of your outstanding balance — worth asking about if you want more payment predictability, particularly as you approach the repayment period.
What affects your HELOC rate?
- Your credit score — the single biggest factor you can control. A 100-point difference in score can mean a 1–2% difference in rate
- Combined loan-to-value (CLTV) — lower CLTV means less risk for the lender and a better rate for you
- The lender's margin above Prime — varies significantly between lenders; shopping around can save 0.5–1.5%
- Federal Reserve rate decisions — affects the Prime Rate and therefore all variable-rate HELOCs
- Your debt-to-income ratio (DTI) — lenders want to see manageable existing debt relative to income
- The size of your credit line — larger lines sometimes carry slightly lower margins
Real homeowner example — how Sarah used her HELOC
Sarah's kitchen and bathroom renovation
Situation: Sarah owns a home worth $450,000 with a $240,000 mortgage balance. She wants to renovate her kitchen and bathroom — a project she estimates will cost $60,000–$75,000, but contractors have warned her the final number may be higher once work begins.
Why she chose a HELOC over a personal loan: Her contractor quoted a phased project — kitchen first, then bathroom — spread over 14 months. With a personal loan, Sarah would have to borrow the maximum upfront and pay interest on all of it from day one, even while the money sat unused. With a HELOC, she draws funds as invoices arrive and only pays interest on what she has actually spent.
Her HELOC: Approved for $100,000 (based on 85% CLTV minus her mortgage). She draws $35,000 for the kitchen phase, then $28,000 for the bathroom — a total of $63,000 drawn, leaving $37,000 untouched and costing her nothing.
Interest saving vs personal loan: By only paying interest on amounts as drawn rather than the full $100,000 from day one, Sarah estimates she saved over $3,200 in interest during the 14-month renovation period.
Important note: Sarah's home is now collateral for the HELOC. She budgeted carefully for the repayment period before opening the line. This is a representative example — individual results will vary.
HELOC pros and cons
Advantages
- Pay interest only on what you use: Unlike a lump-sum loan, you are not charged for unused credit
- Flexibility: Draw funds as needed across multiple projects or expenses over the draw period
- Lower initial payments: Interest-only payments during the draw period keep monthly costs manageable
- Reusable credit: As you repay, the credit replenishes and can be drawn again — like a credit card
- Lower rates than unsecured debt: Secured against your home, HELOC rates are far below credit card or personal loan rates
- Potentially tax-deductible: Interest may be deductible if funds are used for home improvement (see our tax guide and consult a CPA)
Disadvantages
- Your home is collateral: Defaulting on a HELOC puts your home at risk of foreclosure — this is the most important risk to understand
- Variable rate risk: If the Federal Reserve raises rates, your monthly payment rises automatically
- Payment shock: The jump from interest-only to principal-plus-interest payments at the end of the draw period can be significant
- Lenders can freeze or reduce your line: If your home value drops significantly or your financial circumstances change materially, the lender may suspend your ability to draw — see our guide on HELOC freezes
- Fees: Application fees, appraisal costs, annual fees, and early closure penalties vary by lender
- Temptation to overborrow: Easy access to a large credit line requires financial discipline
Who qualifies for a HELOC?
Lender requirements vary, but most mainstream lenders look for the following when evaluating a HELOC application:
- Credit score: Minimum 620 to qualify at most lenders; 700+ to access competitive rates and the widest lender choice
- Home equity: Typically at least 15–20% equity remaining after the HELOC is opened (i.e. CLTV no higher than 80–85%)
- Debt-to-income ratio (DTI): Most lenders want DTI below 43–50% — your total monthly debt payments divided by gross monthly income
- Stable, documented income: Salaried employment, self-employment with two years of tax returns, or verified retirement income
- On-time mortgage payment history: Lenders pay close attention to whether you have kept your existing mortgage current
- Sufficient home equity: Verified through an appraisal or automated valuation model at the time of application
Our credit score guide and equity requirements guide go into detail on each factor — including how to improve your position before applying.
Is a HELOC right for me?
A HELOC is a powerful tool — but it is not the right fit for every situation. Use this checklist to get a quick read on whether a HELOC makes sense for your needs.
A HELOC is likely a good fit if:
- ✓You have a project or expense with uncertain or phased costs — a renovation, a long-term education expense, or an ongoing business need
- ✓You have significant home equity (CLTV below 80–85%) and a credit score above 680
- ✓You have a stable income and are confident in your ability to make repayment period payments
- ✓You want a financial safety net available but may not need to draw much or anything from it
- ✓You are planning to use the funds for home improvement — giving you the potential tax deduction benefit
A HELOC is probably not right for you if:
- ✗You need a precise, fixed amount for a single known expense — a home equity loan with a fixed rate may be more appropriate
- ✗Your income is unstable or you are worried about covering higher payments when the repayment period begins
- ✗You plan to use the funds for everyday spending, holidays, or non-essential purchases — putting your home at risk for depreciating expenses is not advisable
- ✗You are already stretched financially — adding a secured line of credit backed by your home is high-risk if your budget is tight
- ✗You plan to sell your home in the next one to two years — short-term use of a HELOC may not justify the setup costs and early closure fees
A HELOC is a secured debt. If you default — meaning you fail to make required payments — the lender has the legal right to foreclose on your home. This is fundamentally different from a credit card or personal loan default. Only borrow what you are confident you can repay.
HELOC vs home equity loan — what is the difference?
Both products let you borrow against your home equity, but they work very differently. A home equity loan gives you a lump sum at a fixed rate with fixed monthly payments — like a second mortgage. A HELOC gives you a flexible revolving credit line with a variable rate.
| Feature | HELOC | Home Equity Loan |
|---|---|---|
| How funds are received | Draw as needed, up to limit | Full lump sum at closing |
| Interest rate type | Variable (tied to Prime Rate) | Fixed for life of loan |
| Interest charged on | Amount actually drawn | Full loan amount from day 1 |
| Monthly payment | Varies with draw and rate | Fixed — never changes |
| Best for | Phased or uncertain costs | Single, known large expense |
| Payment predictability | Low | High |
| Flexibility | High | Low |
For a full side-by-side analysis with real payment comparisons, see our dedicated HELOC vs home equity loan guide.
Frequently asked questions
Can I get a HELOC on a rental or investment property?
Some lenders offer HELOCs on investment properties, but requirements are stricter — typically a higher minimum credit score, lower maximum CLTV, and a rate premium of 0.5–1.0% above primary residence rates. Not all lenders participate in this market.
How long does HELOC approval take?
The typical process takes two to six weeks from application to funding, covering application review, home appraisal or automated valuation, underwriting, and closing. Some online lenders (such as Figure) offer faster processing using automated valuations, with funding in as few as five business days in straightforward cases.
Can I pay off a HELOC early?
Yes — you can repay your HELOC balance at any time. However, some lenders charge an early closure fee if you close the line within two to three years of opening it (typically $300–$500). Check your loan agreement before fully prepaying and closing. Paying down the balance without closing the line incurs no penalty at most lenders.
What happens to my HELOC if I sell my home?
When you sell, your HELOC balance — like your primary mortgage — is paid off at closing from the sale proceeds. You cannot transfer a HELOC to a new property. If your sale proceeds are insufficient to cover both loans, you would need to arrange separate repayment, which is why maintaining adequate equity is important.
Can a lender freeze my HELOC without warning?
Yes — lenders have the legal right to freeze or reduce your HELOC under certain conditions, including a significant decline in your home's value, a material change in your financial circumstances, or default. They must give you notice. For a full explanation of when and why this happens, see our guide on HELOC freezes and reductions.
Does opening a HELOC affect my credit score?
Yes, in a few ways. The application triggers a hard credit inquiry, which typically reduces your score by a few points temporarily. Once open, the HELOC increases your available revolving credit, which can help your credit utilisation ratio. Making all payments on time builds positive payment history. The net effect over time is usually neutral to slightly positive for well-managed HELOCs.
What is the minimum HELOC draw amount?
Most lenders require a minimum initial draw at closing — commonly $10,000 to $25,000 — and some require a minimum on subsequent draws as well. Check this requirement before opening the line if you only need a small amount.