Canadian tax guide: T1, T2125 and T776
The five books from Dossier’s Guide, followed by references for tax lines, slips, and expenses. The same text as the apps, in Canadian English.
The Dossier Way
Ten seconds per receipt, all year — and tax season becomes an afternoon.
Read →Your T1, line by line
How a return adds up — income first, then deductions, then credits — and what the paper behind each claim must show.
Read →Running a business
When a side gig becomes a business, how T2125 turns income and expenses into one number on your T1, and the records that make it stand up.
Read →Renting out property
How T776 works — rent in, expenses out, your share of the result — and repair versus improvement, the question that decides more than any other.
Read →Handing it off
How the year leaves Dossier — one package with a summary that adds up, a spreadsheet, and every original, ready for whatever files the return.
Read →Reference by topic
T1 tax lines
- Registered pension plan (RPP) deduction (line 20700)
- RRSP deduction (line 20800)
- Pooled registered pension plan (PRPP) employer contributions (line 20810)
- Annual union, professional, or like dues (line 21200)
- Child care expenses (line 21400)
- Disability supports deduction (line 21500)
- Moving expenses (line 21900)
- Support payments made (lines 21999 and 22000)
- Carrying charges, interest expenses, and other expenses (line 22100)
- Other employment expenses (line 22900)
- Clergy residence deduction (line 23100)
- Other deductions (line 23200)
- Northern residents deductions (line 25500)
- Amount for an eligible dependant (line 30400)
- Canada caregiver amount for spouse or common-law partner, or eligible dependant age 18 or older (line 30425)
- Canada caregiver amount for other infirm dependants age 18 or older (line 30450)
- Canada caregiver amount for infirm children under 18 years of age (lines 30499 and 30500)
- Volunteer firefighters' amount and search and rescue volunteers' amount (line 31220)
- Home buyers' amount (line 31270)
- Home accessibility expenses (line 31285)
- Adoption expenses (line 31300)
- Digital news subscription expenses (line 31350)
- Disability amount for self (line 31600)
- Disability amount transferred from a dependant (line 31800)
- Interest paid on your student loans (line 31900)
- Your tuition, education, and textbook amounts (line 32300)
- Tuition amount transferred from a child or grandchild (line 32400)
- Eligible medical expenses you can claim on your tax return (lines 33099 and 33199)
- Donations and gifts (line 34900)
- Federal foreign tax credit (line 40500)
- Political contribution tax credit (lines 40900 and 41000)
- Labour-sponsored funds tax credit (lines 41300 and 41400)
- Canada training credit (CTC) — line 45350
- Multigenerational home renovation tax credit (MHRTC) — line 45355
- Eligible educator school supply tax credit (lines 46800 and 46900)
- Provincial or territorial credits (line 47900)
Tax slips
- RRSP contribution receipt
- T2202 – Tuition and Enrolment Certificate
- T3 – Statement of Trust Income Allocations and Designations
- T4 – Statement of Remuneration Paid
- T4A – Statement of Pension, Retirement, Annuity, and Other Income
- T4A(OAS) – Statement of Old Age Security
- T4A(P) – Statement of Canada Pension Plan Benefits
- T4E – Statement of Employment Insurance and Other Benefits
- T4RIF – Statement of Income from a Registered Retirement Income Fund
- T4RSP – Statement of RRSP Income
- T5 – Statement of Investment Income
- T5007 – Statement of Benefits
- T5008 – Statement of Securities Transactions
- T5013 – Statement of Partnership Income
Forms
- Instalment Reminder (instalment)
- Notice of Assessment (noa)
- Confirmation of Payment (payment-confirmation)
- Notice of Reassessment (reassessment)
- Form T1223, Clergy Residence Deduction
- Form T2200, Declaration of Conditions of Employment
- Form T2201, Disability Tax Credit Certificate
- Form T929, Disability Supports Deduction
T2125 business expenses
- T2125 · Advertising (line 8521)
- T2125 · Meals and entertainment (line 8523)
- T2125 · Bad debts (line 8590)
- T2125 · Insurance (line 8690)
- T2125 · Interest and bank charges (line 8710)
- T2125 · Business taxes, licences, and memberships (line 8760)
- T2125 · Office expenses (line 8810)
- T2125 · Office stationery and supplies (line 8811)
- T2125 · Professional fees (line 8860)
- T2125 · Management and administration fees (line 8871)
- T2125 · Rent (line 8910)
- T2125 · Repairs and maintenance (line 8960)
- T2125 · Salaries, wages, and benefits (line 9060)
- T2125 · Property taxes (line 9180)
- T2125 · Travel expenses (line 9200)
- T2125 · Utilities (line 9220)
- T2125 · Fuel costs, except motor vehicles (line 9224)
- T2125 · Other expenses (line 9270)
- T2125 · Delivery, freight, and express (line 9275)
- T2125 · Motor vehicle expenses (line 9281)
- T2125 · Capital cost allowance (line 9936)
T2125 capital cost allowance classes
- T2125 · Class 8 — furniture, appliances, and equipment
- T2125 · Class 10 — motor vehicles
- T2125 · Class 10.1 — passenger vehicles over the cost limit
- T2125 · Class 12 — small tools, utensils, and application software
- T2125 · Class 13 — leasehold improvements
- T2125 · Class 14.1 — goodwill and certain intangibles
- T2125 · Class 46 — data network infrastructure equipment
- T2125 · Class 50 — computers and systems software
- T2125 · Class 53 — manufacturing and processing machinery
- T2125 · Class 54 — zero-emission vehicles (would be Class 10 or 10.1)
- T2125 · Class 55 — zero-emission vehicles (would be Class 16)
T2125 vehicle, home and tax references
T776 rental expenses
- T776 · Advertising (line 8521)
- T776 · Insurance (line 8690)
- T776 · Interest and bank charges (line 8710)
- T776 · Office expenses (line 8810)
- T776 · Professional fees (line 8860)
- T776 · Management and administration fees (line 8871)
- T776 · Repairs and maintenance (line 8960)
- T776 · Salaries, wages, and benefits (line 9060)
- T776 · Property taxes (line 9180)
- T776 · Travel (line 9200)
- T776 · Utilities (line 9220)
- T776 · Other expenses (line 9270)
- T776 · Motor vehicle expenses (line 9281)
Organize business receipts · Organize rental property expenses