Updated Checked by the Tax-Services.ca editorial team How we check
A tax incentive is a rule that lowers your tax bill when you do something the government wants, like saving in an RRSP or buying a first home through an FHSA. Two kinds matter most. A deduction cuts the income you’re taxed on, and a credit cuts the tax itself. On an $80,000 salary in Ontario, a $1,000 deduction saves $296.50 and a $1,000 credit amount saves $190.50.
Why does a deduction beat a credit of the same size?
Because they work at different points. A deduction comes off your income, so it saves tax at your top rate. A federal non-refundable credit is valued at the lowest federal rate, which is 14% for 2026, no matter how much you earn or how high your own top rate climbs. Ontario adds its own credit rate of 5.05% on top.
Add the two and you get $190.50 per $1,000 claimed. Your top rate on $80,000 is higher, so the deduction wins. If your income is low, the gap shrinks, since the top rate and the lowest rate get close together.
There’s a catch on the credit side. Finance Canada says non-refundable credits only reduce tax down to zero. If you owe nothing, they do nothing. Refundable credits are the exception, because they pay out even when no tax is owed.
Here’s a quick picture. Lee in Moncton has $150 of federal tax to pay but qualifies for credits worth $400. Because the credits are non-refundable, they wipe out the $150 and the other $250 of value goes unused. Had one of them been refundable, the leftover could have come back as cash.
Which tax incentives have a dollar limit?
The big ones for most people are the registered accounts. The 2026 limits below come from the CRA.
| Account | 2026 limit | Deductible? |
|---|---|---|
| RRSP | $33,810 (the top dollar limit) | Yes |
| TFSA | $7,000 a year | No, but growth is tax-free |
| FHSA | $8,000 a year, $40,000 for life | Yes |
Your own RRSP room can be much smaller than $33,810, and your notice of assessment shows it. FHSA room carries forward, up to $8,000 of unused room in our data. The TFSA calculator and the FHSA calculator show what the money can grow into.
What does an FHSA deduction save on $80,000?
Start with a single employee in Ontario earning $80,000 in 2026. The income tax calculator shows $14,128 of income tax, including Ontario’s health premium.
Put in the full $8,000 FHSA contribution and claim it. Tax falls to $11,606. That’s $2,522 saved, or 31.5 cents per dollar contributed.
Now compare a credit. Claim an extra $8,000 in credit amounts and the tax falls by $1,524, about 19 cents per dollar. Same $8,000, and the deduction puts almost $1,000 more in your pocket.
The same logic applies to an RRSP. At the $296.50-per-$1,000 rate from the top of this page, a $5,000 deduction saves roughly $1,482 for that worker. Treat it as a ballpark, because the rate shifts as the deduction moves you down through the brackets.
Does every incentive work this way?
No. Some are refundable, some phase out as income rises, and some only apply to a business. The federal age amount of $9,208, for example, starts to shrink above $46,432 of net income and disappears at $107,819, so it does nothing for high earners. To see which credits reach you, open the tax credits calculator. It’s federal only, so provincial credits aren’t in the result.
Business owners face different rules. Our page on company tax deductions covers that side.
How do you decide which incentive to use first?
Look at the savings per dollar. From the examples above, the FHSA deduction saved about 31.5 cents per dollar and a credit amount about 19 cents, so a deduction-style account usually comes first when you’re in a mid-range bracket. A TFSA gives no deduction at all, but the growth is never taxed, which can matter more over twenty years than a small refund now. And if your employer matches RRSP contributions, that free money often beats everything else. Whatever you choose, pick the one you’ll actually keep topped up.
Mistakes that cost people money
Chasing an incentive for its own sake is the classic one. A deduction only helps if the money would have been spent or saved anyway. Locking $8,000 into an account you’ll have to raid in a year can leave you worse off.
Claiming in the wrong year is another. A deduction saves more in a year when your income is high, so run the numbers for a couple of incomes before you decide.
Then there are the incentives nobody here can judge. Grants, subsidies, and programs from a specific ministry or a city change often, and no source was checked for them. Read the program page itself, and don’t rely on a summary, ours included.
Also check the tools. The marginal tax rate calculator shows your top rate, which is the number that sets how much a deduction saves.
Our sources
The federal credit rate, the lowest-rate credit rule and the age amount are from the CRA‘s 2026 rate and bracket page and its indexation page. The account limits come from the CRA’s pages on registered plan limits and the FHSA. Tax results come from our calculators, using 2026 data verified in September 2026.
Frequently asked questions
What is a tax incentive in Canada?
It's a rule that lowers your tax when you do something the government wants, such as contributing to an RRSP or an FHSA. It comes as a deduction, a credit or a tax-free account.
Is a tax deduction better than a tax credit?
For most working people, yes, because a deduction saves tax at your top rate. A federal non-refundable credit is valued at the lowest rate, 14% for 2026.
Are TFSA contributions deductible?
No. The CRA says TFSA contributions aren't deductible, but the money and the income it earns are generally tax-free, even when withdrawn.
What is the FHSA limit?
The CRA lists $8,000 a year and $40,000 over your lifetime. Contributions are generally deductible.
Do credits help if I owe no tax?
Not the non-refundable ones. They only cut tax down to zero. Refundable credits can pay out even when nothing is owed.
- How Canadian income tax works: brackets and credits
How federal and provincial Canadian income tax stack up, what marginal and average rates mean, and how credits and deductions change your bill