T2 Corporate Tax Return in Ontario: What Documents You Need (Start Early)

Filing a T2 corporate tax return in Ontario isn't complicated—if you have the right documents ready. The problem is most business owners start gathering paperwork after the deadline is already close, and that's when things get stressful, expensive, and messy.

This post gives you a clear checklist of what you need, why each document matters, and how to stay organized so your T2 filing is smooth and CRA-ready.

Who this applies to

This checklist is for Ontario businesses that are:

• Incorporated (federal or provincial)
• Required to file a T2 corporate income tax return annually
• Small businesses, professional corporations, or holding companies

If your business is incorporated in Ontario, you need to file a T2—even if you had no revenue or activity during the year.

Why starting early matters

Your T2 is generally due 6 months after your fiscal year-end. That sounds like plenty of time—until you realize:

• Bank statements need to be reconciled
• Receipts and invoices need to be organized
• HST/GST filings need to be up to date
• Payroll records need to match CRA filings
• Any balance owing is due 2–3 months after year-end (earlier than the filing deadline)

Key point: The payment deadline is often before the filing deadline. If you wait until the last minute to start, you may owe interest on unpaid taxes even if your return isn't late.

The T2 document checklist

Here's what you (or your accountant) will need to prepare your T2 corporate tax return:

1. Financial statements

Your year-end financial statements are the foundation of your T2. This includes:

• Income statement (profit & loss)
• Balance sheet
• General ledger or trial balance

If you use accounting software (QuickBooks, Wave, Xero), these can usually be generated directly. If you use spreadsheets, make sure they're reconciled and accurate.

2. Bank and credit card statements

Full statements for every business bank account and credit card for the entire fiscal year. These are used to verify income, expenses, and reconcile your books.

Tip: Download these early. Some banks only keep 12–18 months of statements online.

3. Revenue records

Documentation of all income your corporation earned during the year:

• Invoices issued to clients/customers
• Sales reports or point-of-sale summaries
• Contract or project payment records
• Any other sources of income (interest, investment, rental)

4. Expense receipts and invoices

Organized records of all business expenses, including:

• Office supplies, software, subscriptions
• Rent, utilities, insurance
• Professional fees (legal, accounting)
• Advertising and marketing costs
• Vehicle expenses (with mileage log if applicable)
• Meals and entertainment (with business purpose noted)
• Any capital purchases (equipment, computers, furniture)

5. HST/GST records

If your corporation is registered for HST/GST:

• HST collected on sales
• HST paid on expenses (ITCs)
• Copies of filed HST returns for the year
• Confirmation that all HST filings are up to date

6. Payroll records

If your corporation has employees (including yourself as a salaried director):

• T4 summaries and slips issued
• Payroll register or reports
• Records of CPP, EI, and income tax remittances
• Any bonuses or shareholder salary payments

7. Prior year's tax return and Notice of Assessment

Your previous year's T2 return and the CRA Notice of Assessment (NOA) are needed to carry forward balances, losses, and credits. If this is your first year filing, your articles of incorporation and CRA business number confirmation are needed instead.

8. Shareholder and director information

• Names, addresses, and SINs of all shareholders
• Shareholder loan balances (amounts owed to/from the corporation)
• Dividend declarations (if any were paid during the year)
• Minutes of directors' meetings (if applicable)

9. Asset and depreciation schedules

A list of capital assets owned by the corporation (vehicles, equipment, computers, furniture) and their depreciation (CCA) schedules. If you purchased or disposed of any assets during the year, include those details.

10. Any CRA correspondence

If CRA sent any letters, notices, or requests during the year, include them. This could include reassessments, requests for information, or instalment reminders.

Common mistakes I see with T2 filings

• Starting document gathering too late (2 weeks before the deadline)
• Missing the payment deadline (which is earlier than the filing deadline)
• Not reconciling bank statements against the books
• Mixing personal and corporate expenses
• Forgetting to file even when there's no activity (a “nil” return is still required)
• Shareholder loan issues (taking money out without proper documentation)
• Not keeping HST filings current before filing the T2

FAQs