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openaccountants/skills/ca-fed-t1-return.md
ca-fed-t1-return.md298 lines10.5 KB
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1---
2name: ca-fed-t1-return
3description: >
4 Use this skill whenever asked about a Canadian federal T1 General individual income tax return for a self-employed sole proprietor. Trigger on phrases like "T1 return", "personal tax Canada", "federal tax brackets", "basic personal amount", "CPP self-employed", "CPP2", "self-employment tax Canada", "net income", "taxable income", "federal tax calculation", "non-refundable credits", "instalment payments", or any question about computing federal tax for a self-employed individual in Canada. ALWAYS read this skill before touching any T1 return work.
5version: 2.0
6jurisdiction: CA-FED
7tax_year: 2025
8category: international
9depends_on:
10 - income-tax-workflow-base
11 - ca-fed-t2125
12---
13 
14# Canada T1 General Individual Return -- Self-Employed Skill v2.0
15 
16---
17 
18## Section 1 -- Quick Reference
19 
20| Field | Value |
21|---|---|
22| Country | Canada -- Federal |
23| Tax | Federal income tax + CPP/CPP2 self-employed |
24| Currency | CAD only |
25| Tax year | Calendar year |
26| Primary legislation | Income Tax Act (ITA), R.S.C. 1985, c. 1 (5th Supp.) |
27| Supporting legislation | Canada Pension Plan Act; Employment Insurance Act |
28| Tax authority | Canada Revenue Agency (CRA) |
29| Filing portal | CRA My Account / NETFILE / EFILE |
30| Form | T1 General + Schedule 1 (Federal Tax) + Schedule 8 (CPP) |
31| Filing deadline | June 15 (self-employed); payment due April 30 |
32| Contributor | Open Accountants Community |
33| Validated by | Pending -- Canadian CPA sign-off required |
34| Skill version | 2.0 |
35 
36### Federal Tax Brackets (2025)
37 
38| Taxable Income (CAD) | Rate | Cumulative Tax |
39|---|---|---|
40| 0 -- 57,375 | 14.5%* | 8,319 |
41| 57,376 -- 114,750 | 20.5% | 20,081 |
42| 114,751 -- 177,882 | 26% | 36,495 |
43| 177,883 -- 253,414 | 29% | 58,399 |
44| 253,415+ | 33% | 58,399+ |
45 
46*14.5% is a blended rate for 2025 (15% Jan-Jun, 14% Jul-Dec).
47 
48### Basic Personal Amount (2025)
49 
50| Net Income | BPA |
51|---|---|
52| $177,882 or less | $16,129 |
53| $177,882 -- $253,414 | Graduated reduction |
54| $253,414+ | $14,538 |
55 
56### CPP Self-Employed (2025)
57 
58| Item | Value |
59|---|---|
60| CPP rate (both portions) | 11.9% |
61| CPP2 rate (both portions) | 8.0% |
62| First ceiling (YMPE) | $71,300 |
63| Second ceiling (YAMPE) | $81,200 |
64| Basic exemption | $3,500 |
65| Max CPP contribution | $8,068.20 |
66| Max CPP2 contribution | $792.00 |
67 
68Half of CPP/CPP2 is deductible (line 22200); half is a non-refundable credit.
69 
70### Conservative Defaults
71 
72| Ambiguity | Default |
73|---|---|
74| Unknown province | STOP -- province required |
75| Unknown RRSP room | $0 deduction |
76| Unknown EI opt-in | Not opted in |
77| Unknown BPA reduction | Apply full clawback formula |
78 
79---
80 
81## Section 2 -- Required Inputs and Refusal Catalogue
82 
83### Required Inputs
84 
85**Minimum viable** -- net self-employment income (from T2125), province of residence on December 31, SIN, date of birth, marital status.
86 
87**Recommended** -- other income sources (T4, T5, T3), RRSP deduction, tax instalments paid, prior year NOA.
88 
89**Ideal** -- complete T-slip package, full deduction schedule, prior year carryforwards, CPP/EI elections.
90 
91### Refusal Catalogue
92 
93**R-CA-T1-1 -- Non-residents.** "Non-resident returns have different rules. Out of scope."
94 
95**R-CA-T1-2 -- Deceased / bankruptcy returns.** "Require specialist handling. Escalate."
96 
97**R-CA-T1-3 -- Trust income allocation.** "Out of scope."
98 
99**R-CA-T1-4 -- Provincial tax computation.** "Provincial tax is separate. Use the appropriate provincial skill."
100 
101---
102 
103## Section 3 -- Transaction Pattern Library
104 
105The T1 skill consumes outputs from the T2125 skill (net business income) and T-slips. Transaction pattern classification is in the `ca-fed-t2125` skill. This skill assembles the return from those inputs.
106 
107---
108 
109## Section 4 -- Worked Examples
110 
111### Example 1 -- Standard Self-Employed
112 
113**Input:** Net business income $85,000. RRSP $10,000. No other income. No EI. Ontario.
114 
115**Computation:**
116- Total income: $85,000
117- CPP: max $8,068.20. CPP2: max $792.00. Total: $8,860.20
118- CPP employer-half deduction: $4,430.10
119- Net income: $85,000 - $10,000 - $4,430.10 = $70,569.90
120- Taxable income: $70,569.90
121- Federal tax: $57,375 x 14.5% + $13,194.90 x 20.5% = $8,319.38 + $2,704.95 = $11,024.33
122- BPA credit: $16,129 x 14.5% = $2,338.71
123- CPP employee-half credit: $4,430.10 x 14.5% = $642.36
124- Basic federal tax: $11,024.33 - $2,981.07 = $8,043.26
125- Plus CPP payable: $8,860.20
126- Total before provincial: $16,903.46
127 
128### Example 2 -- Low Income, Below BPA
129 
130**Input:** Net business income $14,000. No RRSP.
131 
132**Computation:**
133- CPP: ($14,000 - $3,500) x 11.9% = $1,249.50
134- Net income: $14,000 - $624.75 = $13,375.25
135- Federal tax: $13,375.25 x 14.5% = $1,939.41
136- Credits exceed tax: federal tax = $0
137- CPP payable: $1,249.50
138 
139### Example 3 -- High Income, Top Bracket
140 
141**Input:** Net business income $300,000. RRSP $32,490 (max).
142 
143**Computation:**
144- CPP + CPP2: $8,860.20. Employer-half: $4,430.10
145- Net income: $300,000 - $32,490 - $4,430.10 = $263,079.90
146- Federal tax through brackets: $61,588.75
147- BPA: $14,538 (reduced for high income). Credit: $2,108.01
148- CPP credit: $642.36
149- Basic federal tax: $58,838.38
150 
151---
152 
153## Section 5 -- Tier 1 Rules (When Data Is Clear)
154 
155### 5.1 T1 Income Flow
156 
157Total income (line 15000) -> Net income (line 23600, after deductions including CPP employer-half) -> Taxable income (line 26000) -> Federal tax (Schedule 1).
158 
159### 5.2 CPP Self-Employed Computation
160 
161On Schedule 8. If earnings < $3,500: no CPP. If $3,500-$71,300: (earnings - $3,500) x 11.9%. If > $71,300: max $8,068.20. CPP2: earnings $71,300-$81,200 at 8.0%. Half deducted, half credited.
162 
163### 5.3 EI Self-Employed (Voluntary)
164 
165Rate $1.64/$100, max $1,077.48 (Quebec: $1.30). Covers special benefits only (maternity, parental, sickness). 12-month waiting period. Non-refundable credit at 14.5%.
166 
167### 5.4 Filing Deadlines
168 
169Self-employed filing: June 15. Payment due: April 30 (interest from May 1). Late filing: 5% + 1%/month (max 12). Repeat offender: 10% + 2%/month (max 20).
170 
171### 5.5 Instalment Requirements
172 
173Required if net tax owing > $3,000 in current year AND either of two prior years. Due: March 15, June 15, September 15, December 15.
174 
175---
176 
177## Section 6 -- Tier 2 Catalogue (Reviewer Judgement Required)
178 
179### 6.1 Multiple Income Sources
180 
181CPP on self-employment must account for CPP already paid through employment. Schedule 8 integrates. Flag if both T4 and T2125 income.
182 
183### 6.2 BPA Reduction for High Earners
184 
185BPA = $16,129 - $1,591 x (net income - $177,882) / $75,532. Flag if net income between $177,882 and $253,414.
186 
187### 6.3 Medical Expenses and Charitable Donations
188 
189Medical: amounts > lesser of 3% of net income or $2,759. Charitable: 15% on first $200 + 29%/33% on excess. Flag for reviewer.
190 
191---
192 
193## Section 7 -- Excel Working Paper Template
194 
195```
196CANADA T1 -- Working Paper (2025)
197 
198A. TOTAL INCOME
199 A1. Self-employment (T2125 line 13500) ___________
200 A2. Employment (T4) ___________
201 A3. Interest / dividends ___________
202 A4. Other income ___________
203 A5. Total income (line 15000) ___________
204 
205B. NET INCOME
206 B1. RRSP deduction ___________
207 B2. CPP employer-half (line 22200) ___________
208 B3. Other deductions ___________
209 B4. Net income (line 23600) ___________
210 
211C. TAXABLE INCOME
212 C1. Loss carryovers ___________
213 C2. Taxable income (line 26000) ___________
214 
215D. FEDERAL TAX
216 D1. Tax on taxable income ___________
217 D2. Non-refundable credits (x 14.5%) ___________
218 D3. Basic federal tax ___________
219 D4. CPP payable (Schedule 8) ___________
220 D5. EI payable (if opted in) ___________
221 D6. Provincial tax (separate skill) ___________
222 D7. Total payable ___________
223 D8. Less: instalments and withholding ___________
224 D9. Balance owing / (refund) ___________
225 
226REVIEWER FLAGS:
227 [ ] Province confirmed?
228 [ ] CPP/CPP2 computed on Schedule 8?
229 [ ] BPA reduction applied if high income?
230 [ ] Instalment interest checked?
231 [ ] Payment deadline April 30 noted?
232```
233 
234---
235 
236## Section 8 -- Bank Statement Reading Guide
237 
238The T1 skill does not directly process bank statements. Bank statement classification is handled by the `ca-fed-t2125` skill. T1 consumes the net business income from T2125.
239 
240---
241 
242## Section 9 -- Onboarding Fallback
243 
244```
245ONBOARDING QUESTIONS -- CANADA T1
2461. Full legal name and SIN?
2472. Date of birth?
2483. Marital status as of December 31?
2494. Province of residence on December 31?
2505. Net self-employment income (from T2125)?
2516. Other income sources (T4, investments, rental)?
2527. RRSP deduction amount?
2538. Tax instalments paid during the year?
2549. Tax withheld at source (T4 slips)?
25510. Opted into EI special benefits?
25611. Prior year Notice of Assessment available?
25712. CPP/QPP already paid through employment?
258```
259 
260---
261 
262## Section 10 -- Reference Material
263 
264| Topic | Reference |
265|---|---|
266| Tax brackets | ITA s. 117(2) |
267| BPA | ITA s. 118(1)(c) |
268| CPP self-employed | CPP Act s. 10 |
269| CPP2 | CPP Act amendments 2024 |
270| EI self-employed | Employment Insurance Act, Part VII.1 |
271| Filing deadlines | ITA s. 150(1)(d) |
272| Instalments | ITA s. 156(1) |
273| Non-refundable credits | ITA s. 118-118.95 |
274| Canada employment amount | ITA s. 118(10) -- NOT for self-employed |
275 
276---
277 
278## PROHIBITIONS
279 
280- NEVER apply tax brackets without first computing net income and taxable income
281- NEVER forget the CPP employer-half deduction from net income
282- NEVER apply the Canada employment amount to self-employment income
283- NEVER treat EI as mandatory for self-employed
284- NEVER compute provincial tax in this skill
285- NEVER assume BPA is always $16,129 -- it reduces for high earners
286- NEVER allow home office expenses to create a business loss
287- NEVER omit CPP2 for earnings above YMPE
288- NEVER forget payment deadline is April 30 even though filing is June 15
289- NEVER present calculations as definitive
290 
291---
292 
293## Disclaimer
294 
295This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as a CPA, CA, or equivalent licensed practitioner) before filing or acting upon.
296 
297The most up-to-date, verified version of this skill is maintained at [openaccountants.com](https://openaccountants.com).
298 

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Use this skill whenever asked about a Canadian federal T1 General individual income tax return for a self-employed sole proprietor. Trigger on phrases like "T1 return", "personal tax Canada", "federal tax brackets", "basic personal amount", "CPP self-employed", "CPP2", "self-employment tax Canada", "net income", "taxable income", "federal tax calculation", "non-refundable credits", "instalment payments", or any question about computing federal tax for a self-employed individual in Canada. ALWAYS read this skill before touching any T1 return work.

CA-FEDty-2025

2 of 3 in the CA-FED workflow: