A cash back mortgage gives you a lump sum at closing in exchange for a higher interest rate. Offers are usually a percentage of the mortgage amount, commonly quoted from 1% up to 7%: on a $500,000 mortgage, that is $5,000 to $35,000 deposited on closing day, with no restriction on how you use it. This page is part of our guide to mortgage types and features.
The catch is the rate. Over a five-year term the extra interest often equals or exceeds the cash received, which makes cash back an expensive way to borrow. It stays popular because it solves a real problem: buyers who are house-rich and cash-poor at closing.
How Cash Back Mortgages Work
The Basic Deal
| Element | Details |
|---|---|
| Cash back amount | Commonly 1%-7% of the mortgage amount |
| When you receive it | On closing day |
| Rate premium | Commonly 0.50%-1.50% above the lender’s standard rate |
| Term | Typically 5-year fixed (some offer 3 or 4) |
| Use restrictions | None |
| Clawback if broken early | Yes: pro-rata repayment of the cash back |
Cash Back Amounts by Mortgage Size
| Mortgage Amount | 1% Cash Back | 3% Cash Back | 5% Cash Back | 7% Cash Back |
|---|---|---|---|---|
| $300,000 | $3,000 | $9,000 | $15,000 | $21,000 |
| $400,000 | $4,000 | $12,000 | $20,000 | $28,000 |
| $500,000 | $5,000 | $15,000 | $25,000 | $35,000 |
| $600,000 | $6,000 | $18,000 | $30,000 | $42,000 |
The True Cost of Cash Back
The cash feels like a bonus, but the rate premium is charged on the whole balance for the whole term.
5% Cash Back Example
| Factor | Cash Back Mortgage | Standard Mortgage |
|---|---|---|
| Mortgage amount | $500,000 | $500,000 |
| Interest rate | 5.59% | 4.59% |
| Rate premium | +1.00% | |
| Monthly payment | $3,078 | $2,792 |
| Cash back received | $25,000 | $0 |
| Extra interest paid over 5 years | $24,046 | |
| Net benefit (cost) | $25,000 - $24,046 = $954 | $0 |
Illustrative rates, 25-year amortization, semi-annual compounding.
In this scenario the cash back mortgage leaves a net benefit of under $1,000 over the five-year term, and a slightly larger premium would erase it.
When Cash Back Costs More Than It Gives
| Cash Back % | Rate Premium | Cash Received ($500K) | Extra Interest (5 yrs) | Net Benefit/(Cost) |
|---|---|---|---|---|
| 1% | +0.25% | $5,000 | $6,000 | ($1,000) |
| 3% | +0.50% | $15,000 | $12,000 | $3,000 |
| 5% | +1.00% | $25,000 | $24,050 | $950 |
| 5% | +1.25% | $25,000 | $30,080 | ($5,080) |
| 7% | +1.50% | $35,000 | $36,120 | ($1,120) |
| 7% | +1.75% | $35,000 | $42,170 | ($7,170) |
In this table the result turns into a net cost at a 0.25% premium on 1% cash back, and at premiums of 1.25% or more on the larger offers. It also leaves out the opportunity cost of the higher monthly payment, which could otherwise be saved or invested.
The Full 25-Year View
The premium can outlast the first term. If you renewed at a similar premium and kept the mortgage for the full amortization:
| Factor | Cash Back (5%) | Standard |
|---|---|---|
| Mortgage rate | 5.59% | 4.59% |
| Total interest over 25 years | $423,500 | $337,700 |
| Extra interest | $85,700 | |
| Cash back received | $25,000 | |
| Net 25-year cost | $60,700 more |
The premium may not carry over, since at renewal you can negotiate a standard rate or switch lenders, so this table shows the risk of starting with a higher rate rather than a likely outcome. Renewal options are covered in the mortgage renewal guide.
Clawback Rules: What Happens if You Break Early
If you end a cash back mortgage before the term is up (by selling, refinancing or switching lenders), you repay some or all of the cash back. This is the clawback.
How the Clawback Is Calculated
Most lenders use a pro-rata formula:
Clawback = Cash Back ร (Months Remaining รท Total Term Months)
Clawback Examples on $25,000 Cash Back (5-Year Term)
| Break After | Months Remaining | Clawback Amount | You Keep |
|---|---|---|---|
| 1 year | 48 | $20,000 | $5,000 |
| 2 years | 36 | $15,000 | $10,000 |
| 3 years | 24 | $10,000 | $15,000 |
| 4 years | 12 | $5,000 | $20,000 |
| 5 years (full term) | 0 | $0 | $25,000 |
Total Cost of Breaking a Cash Back Mortgage Early
If you break the 5% example above after 2 years:
| Cost Component | Amount |
|---|---|
| Clawback (pro-rata) | $15,000 |
| Prepayment penalty | $12,000-$25,000 |
| Extra interest already paid (2 years) | $9,740 |
| Total cost of breaking | $36,740-$49,740 |
The penalty comes on top of the clawback. Breaking a closed mortgage, paying it off early or prepaying more than your privileges allow usually costs the higher of 3 months' interest and the interest rate differential (IRD) on a fixed rate, and typically 3 months' interest on a variable rate; your mortgage contract sets the exact method and comparison rate, and a federally regulated lender must tell you how it calculates the penalty. How lenders work out the interest rate differential is explained in how mortgage penalties are calculated. Together, the clawback and the penalty make a cash back mortgage costly to leave before the term ends.
Which Lenders Offer Cash Back Mortgages
Cash back offers change often, and some lenders run promotions that differ from the classic percentage-of-mortgage structure. The table describes how offers are typically structured; it is not a list of current amounts.
| Lender | How offers are typically structured | Current offer |
|---|---|---|
| TD | Promotional cash back, recently a flat dollar amount with conditions rather than a percentage of the mortgage | Confirm the live offer on td.com or with a TD mortgage specialist |
| National Bank | Promotional cash back, recently a flat dollar amount tied to insured mortgages and loan size | Confirm the live offer on nbc.ca or with a National Bank mortgage specialist |
| BMO, RBC, CIBC, Scotiabank | Percentage-based cash back on selected fixed terms, at a higher rate | Confirm the current percentage and rate with the lender |
| Credit unions | Varies by credit union | Confirm with the credit union |
| Monolines | Generally not offered |
Lenders aimed at first-time buyers are compared in best mortgage lenders for first-time buyers. Whatever the offer, the number to compare is the cash received against the extra interest at the quoted rate.
When a Cash Back Mortgage Can Make Sense
Situations where it can help
| Situation | Why cash back helps |
|---|---|
| Closing costs exceed your savings | Cash back covers legal fees, land transfer tax and moving costs |
| Urgent home repairs | Safety or habitability issues that can’t wait |
| No other source of short-term funds | No HELOC, savings or family support |
| Small cash back with a small premium | 1% cash back with a 0.20% premium can be close to break-even |
Situations where it tends to cost more than it gives
| Situation | Why |
|---|---|
| Treating it as “free money” | The rate premium costs more than the cash in many cases |
| Furniture and decor | Cheaper to save up or use other financing |
| Vacation or spending | The cost is spread over the mortgage term |
| Debt consolidation | A standard mortgage plus a separate consolidation plan is usually cheaper |
| Down payment shortfall | Cash back arrives at closing and can’t be used as the down payment |
Cash Back vs Other Options
| Need | Cash Back Mortgage | HELOC | Personal Loan | Save Longer |
|---|---|---|---|---|
| Interest rate | Mortgage rate + premium | Prime + a margin | Higher than secured borrowing | None |
| Available at closing | Yes | No (needs equity) | Yes (if pre-approved) | N/A |
| Clawback risk | Yes | No | No | No |
| Total cost | High | Moderate | High | None |
Current HELOC pricing is in HELOC rates in Canada.
Tax Implications
Cash back on a mortgage for your own home is generally treated as a reduction in the cost of borrowing, not as income you report. If you invest the cash in a non-registered account, the investment income is taxable, and interest on a mortgage for your principal residence isn’t deductible, so the rate premium is a pure cost.
How to Evaluate a Cash Back Offer
Checklist
| Question | What to Look For |
|---|---|
| What is the exact rate premium? | Compare to the lender’s standard rate, not the posted rate |
| What is the net cost over 5 years? | Cash back minus extra interest (a mortgage comparison calculator helps) |
| What is the clawback formula? | Pro-rata? Full repayment? Time-weighted? |
| What triggers clawback? | Selling, refinancing, switching, paying off, or lump sums? |
| Can you negotiate the rate? | Some lenders will reduce the premium for strong borrowers |
| Is variable available? | Most cash back is fixed-rate only |
| What happens at renewal? | Does the rate return to standard pricing? |
The Bottom Line
Cash back mortgages solve a real problem, not having enough cash at closing, at a high price. In many scenarios the higher rate costs more than the cash received, and the clawback adds risk if you need to break early. Savings, the RRSP Home Buyers’ Plan, an FHSA or a family gift can cover closing costs without the higher rate. When cash back is the only option, a smaller percentage with a smaller premium keeps the cost down, and every basis point taken off the premium improves the math. Negotiating approaches are in mortgage negotiation tactics.
Related Resources
Sources
The figures and rules on this page come from these sources, last checked against them on September 29, 2026. How we check facts.
- Financial Consumer Agency of Canada: Breaking your mortgage contract
- Financial Consumer Agency of Canada: Mortgage fees: Prepayment penalties
- RBC: Variable Rate Mortgage | RBC Royal Bank of Canada