Key Takeaways
- 1.Priya was resident for 122 days in 2025 (September 1 – December 31). Her federal basic personal amount is pro-rated: $16,129 × (122 ÷ 365) = $5,390, reducing her non-refundable credit from $2,419 to $809.
- 2.The $40,000 in foreign wages goes on line 10400 (world income) for benefit calculations but is not taxed by Canada. Only the $28,000 in Canadian income is taxed on her T1.
- 3.If Priya paid foreign income tax on the $40,000, she claims a foreign tax credit on Form T2209 to offset any Canadian tax attributable to that income, preventing double taxation.
- 4.TFSA contribution room starts on January 1 of the year she becomes resident — so Priya gets the full $7,000 for 2025, not a pro-rated amount. She has zero room from prior years.
- 5.Because Priya lived in Ontario on December 31, 2025, she files as an Ontario resident and may qualify for the Ontario Trillium Benefit (OTB) in her first filing year.
The Scenario: September 2025 Arrival in Ontario
Priya became a Canadian permanent resident on September 1, 2025 and moved to Toronto. Before arriving, she earned $40,000 in wages from her employer abroad and paid $6,000 in foreign income tax. After landing, she started a new job and earned $28,000 in Canadian employment income from September through December. Her total world income for 2025 is $68,000. She is single, has no dependants, and has no foreign assets exceeding $100,000.
Step 1: Determine Residency Days and Province of Residence
CRA determines your province of residence based on where you lived on December 31 of the tax year. Since Priya lived in Ontario on December 31, 2025, she files as an Ontario resident and uses the Ontario tax package (Form ON428).
Residency start date: September 1, 2025
Days resident in 2025: 122 (Sep 1 – Dec 31)
Province on December 31: Ontario
Filing deadline: April 30, 2026
Tax forms required: T1 General, Schedule 1 (Federal), ON428 (Ontario), T2209 (Foreign Tax Credit)
Step 2: Report Income on the T1 Return
This is where most newcomers get confused. The T1 has two income fields that serve different purposes:
| T1 Line | What Goes Here | Priya's Amount |
|---|---|---|
| Line 10100 (employment income) | Canadian employment income only (post-arrival) | $28,000 |
| Line 15000 (total income) | All Canadian-source income from residency start date | $28,000 |
| Line 23600 (net income) | Total income minus deductions (RRSP, union dues, etc.) | $28,000 |
| Line 10400 (world income) | All income from all sources worldwide for the entire year | $68,000 |
Line 10400 is the critical newcomer line. CRA uses it to calculate income-tested benefits (GST/HST credit, Canada Child Benefit, Ontario Trillium Benefit). Omitting the $40,000 foreign income from line 10400 is one of the most common errors that triggers a CRA review letter.
Step 3: Pro-Rate the Federal Basic Personal Amount (Schedule 1)
The federal basic personal amount for 2025 is $16,129 for taxpayers with net income at or below $177,882. For partial-year residents, CRA pro-rates this amount based on days of Canadian residency.
Federal Basic Personal Amount Pro-Ration:
Full-year amount: $16,129
Days resident: 122 out of 365
Pro-ration factor: 122 ÷ 365 = 0.3342
Pro-rated BPA: $16,129 × 0.3342 = $5,390
Non-refundable credit at 15%: $5,390 × 15% = $809
Compare to a full-year resident:
Full BPA credit: $16,129 × 15% = $2,419
Credit reduction: $2,419 − $809 = $1,610 less
The same pro-ration applies to other non-refundable credits on Schedule 1, including the Canada employment amount ($1,368 × 0.3342 = $457 pro-rated) and the CPP/EI credits (which are based on actual contributions, not pro-rated).
Step 4: Pro-Rate the Ontario Basic Personal Amount (Form ON428)
Ontario has its own basic personal amount, calculated on Form ON428. The same days-of-residency fraction applies at the provincial level.
Ontario Basic Personal Amount Pro-Ration:
Full-year Ontario BPA: $11,865
Pro-ration factor: 122 ÷ 365 = 0.3342
Pro-rated Ontario BPA: $11,865 × 0.3342 = $3,965
Ontario non-refundable credit at 5.05%: $3,965 × 5.05% = $200
Full-year comparison:
Full Ontario BPA credit: $11,865 × 5.05% = $599
Provincial credit reduction: $599 − $200 = $399 less
Step 5: Calculate Federal and Ontario Tax on $28,000
With only $28,000 in taxable Canadian income and significantly reduced personal credits, Priya owes more tax than a full-year resident earning the same amount.
Federal Tax Calculation:
Taxable income: $28,000
Federal tax (first bracket, 15%): $28,000 × 15% = $4,200
Less: pro-rated BPA credit: −$809
Less: pro-rated Canada employment credit: $457 × 15% = −$69
Less: CPP credit (actual contributions ~$1,162): −$174
Less: EI credit (actual premiums ~$444): −$67
Federal tax owing: $4,200 − $809 − $69 − $174 − $67 = $3,081
Ontario Tax Calculation:
Ontario tax (first bracket, 5.05%): $28,000 × 5.05% = $1,414
Less: pro-rated Ontario BPA credit: −$200
Ontario tax owing: $1,414 − $200 = $1,214
Ontario surtax: not applicable (base provincial tax below $5,315 threshold)
Total estimated tax: $3,081 + $1,214 = $4,295
Effective rate on $28,000: 15.3%
Comparison: A full-year Ontario resident earning $28,000 would owe approximately $1,590 in combined federal and provincial tax (after full personal credits). Priya owes $4,295 — roughly $2,705 more — because her basic personal amount and other credits are pro-rated to just 33.4% of their full value.
For a detailed breakdown of Ontario tax brackets at different income levels, see our Ontario income tax 2025 take-home calculator.
Step 6: Claim the Foreign Tax Credit (Form T2209)
Priya paid $6,000 in income tax to her home country on the $40,000 in foreign wages. To avoid double taxation, she claims a foreign tax credit on Form T2209 (federal) and the Ontario equivalent.
Federal Foreign Tax Credit (Form T2209):
Foreign income reported on Canadian return: $40,000
Foreign tax paid: $6,000
Canadian federal tax attributable to foreign income:
($40,000 ÷ $68,000) × $3,081 = $1,813
FTC is the lesser of:
(a) Foreign tax paid: $6,000
(b) Canadian tax on foreign income: $1,813
Federal FTC claimable: $1,813
Remaining foreign tax ($6,000 − $1,813 = $4,187) cannot be carried forward for employment income but may offset provincial tax.
In practice, because the $40,000 in foreign income is not included in Priya's Canadian taxable income (line 15000), the FTC calculation for newcomers who earned income entirely before arrival is more nuanced. The credit applies only to the extent that foreign income is actually taxed in Canada. For most newcomers whose foreign employment income was earned entirely pre-arrival, the foreign tax credit on employment income may be minimal or nil — because Canada does not tax that income. The FTC becomes significant if Priya has foreign investment income (dividends, interest) that continued to accrue after she became a Canadian resident.
TFSA Contribution Room: Starts January 1 of Residency Year
One of the most misunderstood rules for newcomers is TFSA contribution room. The key facts:
- Room starts: January 1 of the calendar year you become a Canadian resident AND have a valid SIN AND are 18 or older.
- 2025 annual limit: $7,000. This is the full annual amount — it is never pro-rated within a year, unlike the basic personal amount.
- No prior-year accumulation: Priya does not get room for 2009–2024 (the years the TFSA has existed). Her lifetime room starts at $7,000 in 2025.
- SIN requirement: You must have a valid SIN before contributing. Contributing before receiving your SIN creates an over-contribution subject to a 1% per month penalty.
- 2026 room: Assuming the 2026 limit is $7,000, Priya's total available room as of January 1, 2026 will be $14,000 (2025 + 2026) minus any 2025 contributions.
For a deeper look at TFSA room calculations for newcomers across multiple years, see our newcomer TFSA contribution room calculator.
If you accidentally over-contribute, see our TFSA over-contribution penalty calculator for newcomers.
Ontario Trillium Benefit: Does a Newcomer Qualify?
The Ontario Trillium Benefit (OTB) combines three provincial credits: the Ontario Energy and Property Tax Credit, the Northern Ontario Energy Credit, and the Ontario Sales Tax Credit. This is a purely Ontario benefit that federal-focused guides consistently miss.
- Ontario Sales Tax Credit (OSTC): You qualify if you were an Ontario resident on December 31, 2025 and are 19 or older. Priya qualifies. Maximum: $360 for a single person. Reduced at 4% of adjusted family net income above $36,093.
- Ontario Energy and Property Tax Credit (OEPTC): You qualify if you paid rent or property tax in Ontario in 2025. Priya paid rent from September through December. Maximum: $1,248 for non-seniors. She claims only the rent paid during residency months.
- Northern Ontario Energy Credit: Only if Priya lives in Northern Ontario. For a Toronto resident, this does not apply.
- How to claim: File the ON-BEN form (Application for the Ontario Trillium Benefit and Ontario Senior Homeowners' Property Tax Grant) with your T1 return. CRA calculates the OTB and pays it in monthly instalments starting July 2026.
Estimated OTB for Priya: With $68,000 world income on line 10400, the OSTC is reduced but not eliminated. Estimated OSTC: ~$150. OEPTC based on 4 months of rent at $1,800/month ($7,200 total): ~$400. Total estimated OTB: ~$550 paid monthly from July 2026. Many newcomers miss this benefit entirely because they do not file the ON-BEN form.
GST/HST Credit Eligibility for Newcomers
The GST/HST credit is a federal benefit paid quarterly to offset the cost of sales tax for lower- and moderate-income individuals. As a newcomer, Priya qualifies if she files her T1 return.
GST/HST Credit Calculation (July 2026 – June 2027):
Based on 2025 net world income (line 10400): $68,000
Maximum credit for single person: $519
Reduction: 5% of income above $44,681
Reduction amount: ($68,000 − $44,681) × 5% = $1,166
Since $1,166 > $519:
GST/HST credit: $0
Note: If Priya had a spouse or child, the family threshold and maximum increase, potentially restoring partial eligibility.
This is why line 10400 matters so much — the $40,000 in foreign income pushes Priya above the GST/HST credit threshold. A newcomer earning only $28,000 in Canadian income with no foreign wages would receive the full $519 credit.
Late-Filing Penalties: What Newcomers Risk
If Priya owes tax and files after the April 30 deadline, CRA assesses a late-filing penalty.
Late-filing penalty formula:
5% of balance owing
+ 1% per additional full month late (up to 12 months)
If Priya owes $4,295 and files 3 months late:
5% × $4,295 = $214.75
+ (3 × 1% × $4,295) = $128.85
Total penalty: $343.60
Plus compound daily interest on the unpaid balance at the CRA prescribed rate.
For a detailed penalty calculator, see our CRA late-filing penalty calculator.
The Five Most Common T1 Errors for Newcomers
Based on CRA processing patterns, these are the errors most likely to trigger a review letter or reassessment for newcomers:
| Error | What Happens | How to Avoid |
|---|---|---|
| Omitting world income on line 10400 | CRA review letter; benefits recalculated and clawed back | Report all foreign and Canadian income for the full calendar year |
| Claiming full basic personal amount | Automatic reassessment; tax bill increases | Use the pro-rated amount based on residency days |
| TFSA over-contribution | 1% per month penalty on excess amount | Wait for SIN; only contribute up to $7,000 for arrival year |
| Missing Form T2209 (foreign tax credit) | Double taxation on foreign income | File T2209 with foreign tax receipts or tax return copies |
| Not filing ON-BEN for Ontario Trillium Benefit | Forfeit $400–$800 in provincial credits | Include ON-BEN with your T1; report rent paid from arrival date |
Complete Tax Summary for Priya's First T1
| Item | Amount |
|---|---|
| Canadian employment income (line 10100) | $28,000 |
| World income (line 10400) | $68,000 |
| Federal tax before credits | $4,200 |
| Pro-rated federal credits | −$1,119 |
| Federal tax owing | $3,081 |
| Ontario tax before credits | $1,414 |
| Pro-rated Ontario credits | −$200 |
| Ontario tax owing | $1,214 |
| Total tax owing | $4,295 |
| Less: tax withheld by employer | −~$3,800 |
| Estimated balance owing at filing | ~$495 |
| TFSA room available | $7,000 |
| Estimated Ontario Trillium Benefit (annual) | ~$550 |
| GST/HST credit | $0 (income too high) |
Tax estimates are illustrative and assume no RRSP contributions, no other deductions, and standard CPP/EI contributions for a 4-month employment period. Actual amounts depend on individual circumstances.
For newcomers building a net-worth plan from their first year in Canada, see our newcomer to Canada net worth calculator.
Important Disclaimer
This article provides general information about Canadian tax filing obligations for newcomers to Ontario. It is not legal, financial, or tax advice. The federal basic personal amount of $16,129 and Ontario basic personal amount of $11,865 are 2025 estimates subject to CRA indexation announcements. The TFSA annual limit of $7,000 for 2025 is confirmed by CRA. The GST/HST credit maximum of $519 and phase-out threshold of $44,681 are 2025 indexed estimates. Ontario Trillium Benefit amounts are estimates based on current formulas and are subject to annual recalculation. Foreign tax credit calculations depend on specific treaty provisions between Canada and the taxpayer's home country, which vary. CPP and EI contribution amounts depend on actual earnings and pay periods. Tax estimates are illustrative and use simplified assumptions. Consult a qualified tax professional for advice specific to your situation, particularly regarding foreign tax credit claims and treaty provisions.