How the Charitable Bequest Tax Credit Math Works in Canada
For Canadians considering charitable bequests, the tax credit math determines how much of the gift's cost is borne by the family vs. by the federal and provincial governments through reduced tax. Understanding the mechanics helps donors plan more strategically.
The base mechanic
Under section 118.1 of the Income Tax Act, charitable donations generate a non-refundable tax credit on the donor's tax return.[4] For donations made by the deceased before death, the credit is claimed on the terminal return (or the preceding year's return). Donations deemed made at death (charitable bequests, named-beneficiary registered plan gifts) flow through the terminal return.
The credit has a tiered structure:
- First $200 of donations: 14% federal credit (for 2026) + provincial credit (~5-8%)
- Amounts above $200: Either 33% (highest marginal bracket) or 29% (lower brackets) federal + provincial top rate
Worked example — $10,000 bequest
Ontario resident, deceased in highest marginal bracket:
| Component | Amount |
|---|---|
| First $200 at 14% federal + ~5% Ontario | $38 |
| Remaining $9,800 at 33% federal + ~17% Ontario top | $4,900 |
| Total credit | ~$4,938 |
For this Ontario donor, the $10,000 bequest costs the family roughly $5,060 after tax. The federal and provincial governments fund the rest.
For an Alberta donor in the same bracket, the math is slightly more favourable — Alberta's provincial charitable donation credit on amounts above $200 is 21%, the highest in Canada, so the combined credit above $200 is roughly 54% (33% federal + 21% Alberta). The credit is roughly $5,300 and the family cost is about $4,700.
The 100% net income rule
During life, charitable donation credits can offset only up to 75% of net income. On the terminal return (and the preceding tax year), this limit increases to 100% of net income.[5] Donations can completely offset terminal income.
This is one of the main reasons charitable bequests are highly tax-efficient at death:
- Terminal income often spikes due to RRSP/RRIF inclusion and capital gains realization
- The 100% limit allows the donation credit to fully offset this income
- Excess credit can be carried back to the prior year's return
For very large bequests on top of large RRSP/RRIF balances, the credit can essentially eliminate terminal tax.
When the credit cap matters
The credit is non-refundable — it cannot create a refund beyond what would otherwise be owed. If the donation amount exceeds terminal income (even after carry-back to the prior year), the excess credit is lost.
This caps the value of very large bequests for estates with low terminal income. A $1M charitable bequest from an estate with only $200K of terminal income generates credit only up to the $200K cap (plus carry-back to prior year). The remaining donation generates no tax benefit.
Strategic implications:
- For donors with significant RRSPs/RRIFs, charity-as-beneficiary on the registered plan maximizes the offset (see our RRSP to charity guide)
- For donors with substantial appreciated securities, gifting securities during life or at death generates the donation credit AND eliminates the capital gain (see our securities to charity guide)
- For very large bequests, lifetime giving combined with bequests may be more tax-efficient than a single large bequest at death
What about the surviving spouse?
If the donation generates excess credit beyond what the deceased's terminal return can use, the surviving spouse may be able to claim the unused credit on their own return for the year of death. This requires specific election and planning; coordinate with a tax accountant.
What we focus on at It's Simple Will
The Charitable Tax Credit Calculator shows the estimated credit for any bequest size and province combination. The will questionnaire prompts users to consider their charitable intentions in the context of their other estate planning.
Related guides
Citations & sources
- [1]Canada Revenue Agency — Donations and gifts — Canada Revenue Agency
- [2]Income Tax Act s. 118.1 (CanLII) — CanLII
- [3]Canada Revenue Agency — Final return — Canada Revenue Agency
- [4]Income Tax Act, RSC 1985, c 1 (5th Supp), s 118.1 — Charitable donation tax credit — Justice Laws Website, Government of Canada
- [5]CRA Guide P113 — Gifts and Income Tax (donation limits; 100% of net income in year of death) — Canada Revenue Agency
Frequently asked questions
How is the federal credit calculated?
Federal charitable donation credit is tiered — 14% on the first $200 of total donations (for 2026, tracking the reduced lowest federal tax rate), and 33% on amounts above $200 if the deceased was in the highest marginal bracket. If the deceased was in a lower bracket, the credit rate is 29%. The credit is non-refundable (it reduces tax but doesn't create a refund beyond tax owing).
What does 'up to 100% of net income on the terminal return' mean?
During life, charitable donation credits can only be claimed against up to 75% of net income. On the terminal return (and the preceding year), this limit increases to 100% — donations can completely offset terminal income. This is one of the main reasons charitable bequests are highly tax-efficient at death. Excess donations can be carried back to the prior year's return.
Can the credit create a refund?
The credit is non-refundable — it can reduce tax owing to zero but cannot create a refund beyond what would otherwise be owed. For estates with substantial terminal-year tax (typically from RRSP/RRIF inclusion or capital gains), the credit can substantially offset that tax. For estates with minimal terminal income, the credit's value is limited.
What is the credit on a typical $10,000 bequest?
Approximately $4,000-$5,000 of tax savings, depending on the deceased's province and marginal tax bracket. The math — first $200 at 14% federal + provincial low rate ($28+); next $9,800 at 33% federal + provincial top rate (combined ~48-50%). The credit roughly halves the 'cost' of the donation to the family — for every $10,000 the charity receives, the family inheritance is reduced by roughly $5,000-$6,000 because the federal/provincial governments fund the rest through reduced tax.
Are there limits on how much I can leave to charity?
No legal limit, but practical limits exist. If the donation amount exceeds terminal income (even after carry-back to the prior year), the excess credit is lost. For very large bequests, the tax benefit caps out — donating more doesn't generate more credit if there's no more income to offset. This is one reason naming charity as RRSP beneficiary works so well — the RRSP inclusion creates the income that the donation credit then offsets.