How do I install the Ca Fed T2125 skill?

Run npx skillmds@latest add openaccountants/ca-fed-t2125 in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Ca Fed T2125 skill do?

> Use this skill whenever asked about Canadian self-employment business income reported on Form T2125 (Statement of Business or Professional Activities). Trigger on phrases like "T2125", "business income Canada", "self-employed expenses", "CCA", "capital cost allowance", "home office Canada", "motor vehicle expenses CRA", "business-use-of-home", "sole proprietor Canada", "net business income", "business number BN", "fiscal year end", "GST ITC", or any question about computing, classifying, or reporting business income and expenses for a Canadian sole proprietor. Covers Parts 1-8 of T2125, allowable expenses, CCA classes and rates, AccII, business-use-of-home, motor vehicle expenses, GST/HST interaction, and net income computation. ALWAYS read this skill before touching any T2125 work. It is listed under AI & ML on SkillMD.

Is Ca Fed T2125 safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Ca Fed T2125?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Ca Fed T2125 free to use?

Yes. Installing skills from SkillMD is free. This skill is licensed under AGPL-3.

Who published Ca Fed T2125?

openaccountants (@openaccountants) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Ca Fed T2125 by openaccountants — Agent Skill

Name: Ca Fed T2125
Author: openaccountants

Canada Self-Employment (T2125) -- Sole Proprietor Skill v2.0

General reference only. This skill is general tax/accounting reference material for AI-assisted workflows. It has not been reviewed for any specific person's facts, documents, elections, deadlines, residency, filing status, or local procedures. Do not rely on it to file, pay, amend, or take a tax position without review by a qualified professional in the relevant jurisdiction.

Section 1 -- Quick Reference

Field	Value
Country	Canada -- Federal
Tax	Federal income tax on business income + CPP self-employed contributions
Currency	CAD only
Tax year	Calendar year (sole proprietors must use December 31 fiscal year-end)
Primary legislation	Income Tax Act (ITA), R.S.C. 1985, c. 1 (5th Supp.)
Supporting legislation	Income Tax Regulations (ITR); Excise Tax Act (ETA) for GST/HST; CRA Guide T4002
Tax authority	Canada Revenue Agency (CRA)
Filing portal	CRA My Account / NETFILE / EFILE
Filing deadline	15 June (self-employed), but tax owing due 30 April
Form	T2125 -- Statement of Business or Professional Activities
Contributor	Open Accountants Community
Validated by	Pending -- Canadian CPA sign-off required
Skill version	2.0

Federal Tax Brackets (2025) [T1]

Taxable Income (CAD)	Rate
0 -- 57,375	15%
57,376 -- 114,750	20.5%
114,751 -- 158,468	26%
158,469 -- 220,000	29%
220,001+	33%

Provincial tax is additional. Each province has its own brackets. This skill covers federal only. Combined marginal rates range from ~20% to ~54% depending on province.

Basic Personal Amount (2025) [T1]

Item	Amount (CAD)
Basic personal amount (income under ~$177,882)	$16,129
Basic personal amount (income over ~$253,414)	$14,538
BPA clawback zone	Linear reduction between thresholds

CPP Self-Employed Contributions (2025) [T1]

Item	Value
CPP rate (self-employed pay both portions)	11.9% (2 x 5.95%)
CPP2 rate	8% (2 x 4%) on earnings between first and second ceilings
First earnings ceiling	$71,300
Second earnings ceiling	$81,200
Basic exemption	$3,500
Maximum CPP contribution	$8,068.20
Maximum CPP2 contribution	$792.00

Half of CPP self-employed contributions is deductible on Line 22200.

Key T2125 Thresholds [T1]

Item	Value
GST/HST registration required	Over $30,000 in 4 consecutive quarters
CCA deduction	Optional -- can claim any amount up to the maximum
Instant asset write-off (CEBA)	See AccII rules -- enhanced first-year deduction
Business-use-of-home	Only if principal place of business OR used exclusively for income-earning and meeting clients

Conservative Defaults [T1]

Ambiguity	Default
Unknown business-use % (vehicle, home, phone)	0% deduction
Unknown expense category	Not deductible
Unknown CCA class	Do not depreciate -- ask
Unknown GST/HST status	Not registered (gross amounts are the cost)
Unknown whether expense is business or personal	Personal (not deductible)
Unknown vehicle km split	0% business

Section 2 -- Required Inputs and Refusal Catalogue

Required Inputs

Minimum viable -- bank statement for the full calendar year (January-December), confirmation of business activity and NAICS code.

Recommended -- all invoices issued, purchase receipts, vehicle km log, home office measurements, GST/HST returns filed, prior year T2125.

Ideal -- complete bookkeeping records, CCA schedule from prior year, motor vehicle log, T4 slips (if also employed), prior year Notice of Assessment.

Refusal Catalogue

R-CA-1 -- Corporations. "Corporations file T2 corporate tax returns. This skill covers sole proprietors filing T2125 only."

R-CA-2 -- Partnerships. "Partnerships file T2125 at the partnership level with allocation to partners. Partnership-specific rules are out of scope."

R-CA-3 -- Non-residents. "Non-resident business income has different rules. Out of scope."

R-CA-4 -- SR&ED claims. "Scientific Research and Experimental Development tax credits require specialised review. Escalate."

R-CA-5 -- Farming/fishing income. "Farming (T2042) and fishing (T2121) have their own forms and special rules. Out of scope."

Section 3 -- Transaction Pattern Library

3.1 Income Patterns (Credits on Bank Statement)

Pattern	T2125 Line	Treatment	Notes
CLIENT DEPOSIT, CLIENT PAYMENT, [client name]	Line 8299 (Gross revenue)	Business income	Core revenue
STRIPE PAYOUT, STRIPE TRANSFER	Line 8299	Business income	Match to underlying invoices. Report gross (before Stripe fees).
PAYPAL TRANSFER, PAYPAL PAYOUT	Line 8299	Business income	Same -- report gross before fees
ETRANSFER [client name], INTERAC	Line 8299	Business income	Common Canadian payment method
GST/HST REFUND, CRA GST REFUND	Check	May be income	GST/HST refund of ITCs: NOT income. Net income adjustment if previously expensed.
INTEREST, SAVINGS INTEREST	NOT T2125	Interest income	Report on Line 12100, not T2125
DIVIDEND	NOT T2125	Dividend income	Report on Line 12000/12010
EMPLOYMENT INCOME, SALARY	NOT T2125	Employment income	T4 slip income
CRA REFUND, TAX REFUND	EXCLUDE	Not income	Tax refund
RENTAL INCOME	NOT T2125	Rental	Report on T776
OWN TRANSFER, SAVINGS TRANSFER	EXCLUDE	Internal	Between own accounts

3.2 Expense Patterns (Debits on Bank Statement)

Pattern	T2125 Line	Tier	Treatment
RENT, OFFICE RENT, COMMERCIAL LEASE	Line 8910 (Rent)	T1	Fully deductible if business premises
PROPERTY TAX (business premises)	Line 8810 (Property taxes)	T1	Fully deductible for business property
HYDRO, ELECTRICITY, GAS, ENBRIDGE, HYDRO ONE	Line 8945 (Utilities)	T2	If home: business-use % only. If office: fully deductible.
BELL, ROGERS, TELUS, SHAW	Line 8220 (Telephone/utilities)	T2	Business portion only
INTERNET, WIFI	Line 8220	T2	Business portion only
INSURANCE, BUSINESS INSURANCE, LIABILITY	Line 8690 (Insurance)	T1	Fully deductible if business insurance
ACCOUNTING, BOOKKEEPER, CPA	Line 8860 (Professional fees)	T1	Fully deductible
LAWYER, LEGAL FEE	Line 8860	T1	Deductible if business-related
OFFICE SUPPLIES, STAPLES, GRAND & TOY	Line 8810 (Office expenses)	T1	Fully deductible
BANK FEE, MONTHLY FEE, NSF	Line 8710 (Interest and bank charges)	T1	Fully deductible for business account
STRIPE FEE, PAYPAL FEE, SQUARE FEE	Line 8710	T1	Payment processing fees: fully deductible
INTEREST (business loan)	Line 8710	T1	Fully deductible
ADVERTISING, GOOGLE ADS, META ADS, FACEBOOK	Line 8520 (Advertising)	T1	Fully deductible
MEALS (client entertainment)	Line 8523 (Meals and entertainment)	T1	50% deductible only. The other 50% is permanently disallowed.
MEALS (business travel, alone)	Line 8523	T1	50% deductible
SOFTWARE, SUBSCRIPTION, SAAS	Line 8810 or 8860	T1	Fully deductible
TRAINING, COURSE, CONFERENCE	Line 9270 (Other expenses)	T1	Fully deductible if business-related
GAS, FUEL, PETRO-CANADA, SHELL, ESSO	Motor vehicle expenses	T2	Business km / total km. Keep a log.
CAR INSURANCE, AUTO INSURANCE	Motor vehicle expenses	T2	Business km proportion only
CAR REPAIR, SERVICE, OIL CHANGE	Motor vehicle expenses	T2	Business km proportion only
PARKING (business)	Motor vehicle or travel	T1	Fully deductible if business purpose
CRA INCOME TAX, TAX INSTALMENT	EXCLUDE	Not deductible	Income tax is not a business expense
CRA GST PAYMENT, GST REMITTANCE	EXCLUDE from T2125	T1	GST is separate system. Net of GST on T2125 if registered.
CPP CONTRIBUTION	EXCLUDE from T2125	T1	CPP is not a T2125 expense. Half deductible on Line 22200.
PERSONAL, GROCERY, AMAZON (personal)	EXCLUDE	Not deductible	Personal expenses
COMPUTER, LAPTOP, EQUIPMENT (over $500)	CCA (not current expense)	T1	Capital -- claim CCA. See Section 5.4.
MEMBERSHIP, DUES, PROFESSIONAL BODY	Line 8760 (Management fees) or 9270	T1	Fully deductible if business-related
SUBCONTRACTOR, CONTRACTOR PAYMENT	Line 8340 (Subcontracts)	T1	Fully deductible. Issue T4A if over $500.

3.3 SaaS Subscriptions

Pattern	Treatment	Notes
GOOGLE WORKSPACE, MICROSOFT 365, ADOBE	Line 8810/8860 -- fully deductible	Operating expense
SLACK, ZOOM, NOTION, FIGMA, GITHUB	Line 8810/8860 -- fully deductible	Same
AWS, HEROKU, DIGITAL OCEAN	Line 8810 -- fully deductible	Hosting costs
QUICKBOOKS, XERO, FRESHBOOKS, WAVE	Line 8860 -- fully deductible	Accounting software

3.4 Internal Transfers and Exclusions

Pattern	Treatment	Notes
OWN TRANSFER, SAVINGS, TFSA, RRSP	EXCLUDE	Not business transaction
MORTGAGE, RENT (personal)	EXCLUDE (or home office %)	Personal. Home office portion in business-use-of-home.
ATM, CASH WITHDRAWAL	T2 -- ask	Default exclude
DONATION, CHARITY	EXCLUDE from T2125	Personal tax credit, not business expense

Section 4 -- Worked Examples

Example 1 -- Standard Sole Proprietor (Web Developer)

Input: Gross revenue CAD 95,000. Not GST registered (under $30K threshold last year, now over -- must register). Expenses: home office (see below), software CAD 2,400, accounting CAD 1,500, subcontractor CAD 8,000, travel CAD 3,000, meals (50%) CAD 1,200 (deductible: CAD 600).

Home office: 1,200 sq ft house, 150 sq ft office (12.5%). Mortgage interest CAD 8,000, property tax CAD 4,000, utilities CAD 3,600, insurance CAD 1,800. Total: CAD 17,400 x 12.5% = CAD 2,175.

Computation:

Revenue: CAD 95,000
Expenses: 2,400 + 1,500 + 8,000 + 3,000 + 600 + 2,175 = CAD 17,675
Net business income: CAD 77,325
CPP: (77,325 - 3,500) x 11.9% = CAD 8,068.20 (hits maximum)
Half CPP deductible: CAD 4,034.10

Example 2 -- Vehicle (Km-Based Apportionment)

Input: Total km driven: 25,000. Business km: 15,000 (60%). Vehicle costs: gas CAD 3,600, insurance CAD 2,400, repairs CAD 800, licence CAD 120. Car cost CAD 36,000 (Class 10).

Computation:

Operating costs: (3,600 + 2,400 + 800 + 120) x 60% = CAD 4,152
CCA: CAD 36,000 x 30% (Class 10 rate) x 60% = CAD 6,480 (first year: AccII provides 1.5x = CAD 9,720 if eligible)
Total vehicle deduction: CAD 4,152 + CCA amount

Example 3 -- Meals (50% Rule)

Input: CAD 2,500 in restaurant receipts for client meetings.

Classification: Only 50% deductible = CAD 1,250. This is a permanent restriction under ITA s67.1. The full CAD 2,500 is reported on Line 8523, then 50% is added back.

Example 4 -- CCA on Computer Equipment

Input: Laptop purchased for CAD 2,800. Class 50 (55% rate). First year.

Classification: CCA Class 50 at 55%. With AccII (Accelerated Investment Incentive), first-year deduction enhanced: 1.5 x 55% x CAD 2,800 = CAD 2,310 (but cannot exceed cost, so CAD 2,310). UCC year-end: CAD 490.

Section 5 -- Tier 1 Rules (When Data Is Clear)

5.1 Business Income [T1]

Legislation: ITA s9

All revenue from business activities. Report gross on Line 8299. If GST/HST registered, report net of GST/HST.

5.2 Deductible Expenses [T1]

Legislation: ITA s18

Must be incurred to earn business income. Must be reasonable (s67). Personal or living expenses are not deductible (s18(1)(h)).

5.3 Meals and Entertainment [T1]

Legislation: ITA s67.1

50% limitation on meals and entertainment. Applies to all business meals, client entertainment, and food/drink. Long-haul truck drivers: 80%.

5.4 Capital Cost Allowance (CCA) [T1]

Legislation: ITA s20(1)(a); ITR Schedule II

Class	Rate	Assets
1	4%	Buildings (non-residential after March 2007)
8	20%	Furniture, fixtures, equipment, photocopiers
10	30%	Motor vehicles (passenger, cost < $37,000 limit)
10.1	30%	Passenger vehicles over $37,000 (cost capped at limit)
12	100%	Small tools, computer software, cutlery
43	30%	Manufacturing equipment
50	55%	Computer hardware, data network equipment
54	30%	Zero-emission passenger vehicles (cost cap $61,000)
55	40%	Zero-emission vehicles not in class 54

Passenger vehicle cost limit (2025): CAD 37,000 (excluding GST/HST). Luxury vehicles capped at this amount for CCA purposes (Class 10.1).

AccII (Accelerated Investment Incentive): For eligible property acquired after November 20, 2018, the first-year CCA is enhanced by a 1.5x multiplier on the half-year rule. Effectively, you get 1.5 times the normal first-year CCA.

5.5 Business-Use-of-Home [T1/T2]

Legislation: ITA s18(12)

Condition	Eligibility
Principal place of business	YES -- deduction allowed
Exclusive use for business + regular meetings	YES -- deduction allowed
Neither condition met	NO deduction

Deductible expenses: proportion of rent/mortgage interest, property tax, utilities, insurance, maintenance. Proportion = business area / total area.

Cannot create or increase a business loss. Excess carried forward to the next year.

5.6 Filing Deadlines [T1]

Item	Deadline
T1 filing (self-employed)	15 June
Tax payment due	30 April (even though filing deadline is 15 June)
Quarterly instalments	15 March, 15 June, 15 September, 15 December
T4A issuance (subcontractors)	Last day of February
GST/HST annual return	15 June (if annual filer)

5.7 Penalties [T1]

Offence	Penalty
Late filing	5% of balance owing + 1% per month late (max 12 months)
Repeated late filing (2nd+ time in 3 years)	10% + 2% per month (max 20 months)
Late instalment	Instalment interest at prescribed rate
Gross negligence	50% of understated tax or overstated credits

Section 6 -- Tier 2 Catalogue (Reviewer Judgement Required)

6.1 Home Office [T2]

Confirm: (1) principal place of business OR exclusive use + client meetings, (2) area measurements, (3) expense amounts. Cannot create or increase a loss. Excess carried forward.

Flag for reviewer: Confirm eligibility conditions and area calculation.

6.2 Motor Vehicle [T2]

Must keep a contemporaneous km log. CRA audits vehicle claims frequently. If no log exists, default to 0% business use.

Flag for reviewer: Confirm km log exists and business percentage is reasonable.

6.3 Reasonableness (s67) [T2]

All expenses must be "reasonable in the circumstances." CRA can deny excessive expenses even if legitimately incurred. Flag any single expense that appears disproportionate.

6.4 CCA vs Expense [T2]

Items with lasting value beyond one year: CCA. Items consumed in the year: current expense. Software subscriptions: current expense. Software perpetual licences: CCA Class 12 (100%). Hardware: CCA Class 50.

Section 7 -- Excel Working Paper Template

T2125 WORKING PAPER -- Tax Year 2025

A. GROSS INCOME
  A1. Gross sales/revenue (Line 8299)              ___________
  A2. GST/HST collected (if registered)            ___________
  A3. Net sales (A1 - A2 if applicable)            ___________

B. EXPENSES
  B1. Advertising (8520)                           ___________
  B2. Meals and entertainment (8523) -- 50%        ___________
  B3. Subcontracts (8340)                          ___________
  B4. Insurance (8690)                             ___________
  B5. Interest and bank charges (8710)             ___________
  B6. Management and admin (8760)                  ___________
  B7. Office expenses (8810)                       ___________
  B8. Professional fees (8860)                     ___________
  B9. Rent (8910)                                  ___________
  B10. Telephone and utilities (8220)              ___________
  B11. Travel (8520)                               ___________
  B12. Other expenses (9270)                       ___________
  B13. Total expenses                              ___________

C. NET INCOME BEFORE CCA AND HOME OFFICE
  C1. A3 - B13                                     ___________

D. CCA
  D1. Class 8 (20%)                                ___________
  D2. Class 10/10.1 (30%)                          ___________
  D3. Class 50 (55%)                               ___________
  D4. Other classes                                ___________
  D5. Total CCA                                    ___________

E. BUSINESS-USE-OF-HOME
  E1. Business area %                              ___________
  E2. Total home costs                             ___________
  E3. Deductible portion (E1 x E2)                 ___________

F. NET BUSINESS INCOME (C1 - D5 - E3)              ___________

REVIEWER FLAGS:
  [ ] Vehicle km log available?
  [ ] Home office eligibility confirmed?
  [ ] CCA schedule reconciled from prior year?
  [ ] Meals at 50% applied?
  [ ] All T2 items flagged?

Section 8 -- Bank Statement Reading Guide

Canadian Bank Statement Formats

Bank	Format	Key Fields
RBC, TD, BMO, Scotiabank, CIBC	CSV, PDF	Date, Description, Debit, Credit, Balance
Desjardins	CSV	Date, Description, Withdrawal, Deposit
Tangerine, Simplii, EQ Bank	CSV	Date, Transaction, Amount
Wise, Revolut	CSV	Date, Description, Amount, Currency

Key Canadian Banking Terms

Term	Classification Hint
e-Transfer / Interac	Very common -- check direction and counterparty
PAD (Pre-Authorized Debit)	Regular expense
POS	Point-of-sale purchase
Direct Deposit	Could be income or employment
NSF	Non-sufficient funds fee -- bank charge
Service Charge	Monthly bank fee

Section 9 -- Onboarding Fallback

ONBOARDING QUESTIONS -- CANADA T2125
1. What is your business name and NAICS code?
2. Do you have a Business Number (BN)?
3. Are you GST/HST registered?
4. Do you work from home? Is it your principal place of business?
5. Do you use a vehicle for business? Do you have a km log?
6. Any capital purchases this year? (computers, equipment, vehicles)
7. Do you have subcontractors you paid over $500?
8. Are you also employed (T4 income)?
9. Province of residence?
10. Prior year T2125 / CCA schedule available?

Section 10 -- Reference Material

Key Legislation

Topic	Reference
Business income	ITA s9
Deductible expenses	ITA s18
Reasonableness	ITA s67
Meals 50% limit	ITA s67.1
CCA	ITA s20(1)(a); ITR Schedule II
Motor vehicle limits	ITA s67.2, s67.3; ITR 7307
Business-use-of-home	ITA s18(12)
CPP self-employed	CPP Act s10, s12
Filing deadlines	ITA s150(1)
Penalties	ITA s162, s163
GST/HST	ETA Part IX

Interaction with GST/HST [T1]

Scenario	Income Tax Treatment
GST/HST collected on sales (registrant)	NOT income. Report net of GST/HST on T2125.
ITC (Input Tax Credit) recovered	NOT an expense. Report net of recoverable GST/HST.
Non-registrant (under $30K threshold)	GST/HST paid on purchases IS part of the cost. Report gross.
ITCs denied (personal use portion)	Non-recoverable GST/HST is part of the expense cost.

PROHIBITIONS

NEVER allow personal or living expenses as business deductions
NEVER allow more than 50% of meals and entertainment
NEVER claim CCA without a prior-year UCC reconciliation
NEVER claim home office if neither principal-place-of-business nor exclusive-use test is met
NEVER allow home office to create or increase a business loss
NEVER claim vehicle expenses without a km log
NEVER exceed the passenger vehicle cost limit for CCA
NEVER include income tax payments as business expenses
NEVER include CPP contributions as T2125 expenses (half goes to Line 22200)
NEVER report GST/HST-inclusive amounts on T2125 if the business is a registrant
NEVER present tax calculations as definitive -- always label as estimated

Disclaimer

This 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, CGA, or equivalent licensed practitioner in your jurisdiction) before filing or acting upon.

The most up-to-date, verified version of this skill is maintained at openaccountants.com. Log in to access the latest version, request a professional review from a licensed accountant, and track updates as tax law changes.

Source: OpenAccountants — open tax Guides for AI, reviewed by named CPAs/CAs/EAs. Quality: source-cited draft. For always-current figures and named-accountant backing, connect the OpenAccountants MCP server (openaccountants-mcp).

Ca Fed T2125

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