What Is a HELOC and How Does It Work

A HELOC Canada can be a flexible way to access the equity in your home without refinancing your mortgage. In this guide you'll get a clear, Canada-specific explanation of what a home equity line of credit (HELOC) is, how it works, how it compares to a mortgage, and practical steps to decide whether a HELOC suits your financial plan.

Credit & BorrowingIntermediate
Read time:5 minUpdated: Sep 06, 2025

A HELOC Canada can be a flexible way to access the equity in your home without refinancing your mortgage. In this guide you'll get a clear, Canada-specific explanation of what a home equity line of credit (HELOC) is, how it works, how it compares to a mortgage, and practical steps to decide whether a HELOC suits your financial plan.

What is a HELOC?

  • Definition: A HELOC (home equity line of credit) is a revolving line of credit secured by the equity in your home. You borrow up to an approved limit, pay interest on amounts you use, and can re-borrow as you repay during the draw period.

  • Key feature: It behaves like a credit card against your home—flexible borrowing and repayment—but typically with lower rates because it is secured.

How a HELOC works — the basics

  1. Appraisal and credit check: Lenders verify your home value and creditworthiness.

  2. Credit limit set: The lender approves a maximum amount based on your home equity (often up to 65%–80% combined loan-to-value with your mortgage).

  3. Draw period: You can withdraw funds as needed during a set period (commonly 5–25 years).

  4. Repayment: You usually pay interest-only during the draw period, then must repay principal and interest during the amortization period or when the HELOC is renewed.

  5. Variable rate: Most HELOCs use a variable rate tied to the lender's prime rate; payments fluctuate with changes in rates.

How lenders calculate your HELOC limit

  • Home value: Based on a current appraisal or automated valuation.

  • Outstanding mortgage balance: Subtracted from the allowable loan-to-value (LTV).

  • Maximum combined LTV: Many lenders cap combined mortgage + HELOC at 65%–80% of the home's value (varies by lender and property type).

  • Your income and credit: Affects final approval and interest rate.

Pros and cons — quick checklist

  • Pros:

    • Flexible access to cash for renovations, debt consolidation, education, or investing.

    • Typically lower interest than unsecured lines of credit or credit cards.

    • Interest may be tax-deductible if the funds are used to earn investment income (see CRA rules).

  • Cons:

    • Variable rate risk: payments can rise if prime increases.

    • Your home is collateral — default can lead to foreclosure.

    • Temptation to over-borrow against your home equity.


HELOC vs mortgage — how they compare

  • Purpose

    • Mortgage: Long-term purchase or refinance of a home.

    • HELOC: Short- to medium-term flexible borrowing secured by home equity.

  • Interest rates

    • Mortgage: Can be fixed or variable; fixed offers rate certainty.

    • HELOC: Usually variable and tied to prime.

  • Repayment

    • Mortgage: Regular principal + interest amortized over decades.

    • HELOC: Interest-only payments may be allowed during draw period; principal repayment varies.

  • Cost to set up

    • Mortgage: Higher closing costs, possible penalty for breaking term.

    • HELOC: Lower setup fees, though some lenders charge appraisal or legal fees.

Common HELOC uses in Canada

  • Home renovations: Improve value and living conditions.

  • Debt consolidation: Replace high-interest credit cards with lower HELOC interest.

  • Emergency fund or cash flow: Access to funds for unexpected costs.

  • Investing: Some use HELOC to invest (interest may be deductible if used to earn investment income; check CRA guidance).

Costs and fees to watch for

  • Interest rate (variable): Often prime + margin; watch for rate changes.

  • Appraisal fee: Lender may require a home appraisal.

  • Legal fees: If the HELOC requires registering a new mortgage charge.

  • Inactivity/maintenance fees: Some lenders charge annual admin fees.

  • Renewal/limit review fees: Lender may re-evaluate and adjust your limit.

Tax considerations (Canada)

  • Interest deductibility: Generally, interest is deductible only when borrowed funds are used to earn income (e.g., investments generating taxable income). Personal uses (vacation, consumer purchases) usually make interest non-deductible.

  • Keep records: Maintain clear proof of how you used HELOC funds and consult the CRA rules or a tax advisor.

  • Helpful resource: CRA — Carrying charges and interest expenses.

Risks and how to manage them

  • Interest-rate risk: Choose a plan to manage rising rates (e.g., partial fixed-rate options or converting HELOC balance to a fixed-rate loan).

  • Overleveraging: Avoid using all equity—retain a buffer for market downturns.

  • Change in property value: A falling house price could reduce or eliminate available equity.

  • Job or income loss: Ensure you can make payments during hard times.

How to apply — step-by-step

  1. Check your credit score and finances.

  2. Estimate your home equity: Subtract your mortgage balance from a realistic market value.

  3. Shop lenders: Compare HELOC Canada products, rates, fees and features.

  4. Get an appraisal (if required).

  5. Submit application and documents: ID, income, mortgage details, property info.

  6. Review offer: Check rate, fees, repayment structure, and renewal terms.

  7. Sign and register: Legal registration may be required; funds become available after closing.

Tips for Canadians considering a HELOC

  • Keep a conservative LTV: Don't borrow to the maximum; leave a margin for market swings.

  • Consider a blended approach: Use a mix of HELOC and fixed-rate products for stability.

  • Automate payments: Pay at least more than interest if you can to reduce principal.

  • Read the fine print: Renewal conditions and variable-rate clauses can materially affect costs.

  • Talk to a mortgage specialist or financial advisor about how a HELOC fits with RRSP, TFSA, RESP and other goals.

Typical HELOC scenarios — examples

  • Renovation: Borrow $50,000 for a kitchen remodel; interest-only payments during a 10-year draw, then repay principal over the amortization.

  • Consolidation: Move $30,000 in credit card debt to a HELOC at prime + 0.5% to lower monthly interest.

  • Investing: Use HELOC for a taxable investment; consult a tax advisor to confirm interest deductibility and investment risk.

Questions to ask a lender

  • What is the current variable rate and margin?

  • Is there an annual or inactivity fee?

  • Can I lock a portion into a fixed-rate loan?

  • What is the combined LTV limit?

  • How often can you redraw and what are the renewal terms?

Official Canadian resources