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What Your Accountant Actually Needs from You (and When)

March 28, 2026·6 min read·ledg
AccountantTax FilingTips

Every year, the same thing happens. Your accountant sends an email asking for your documents. You scramble for two weeks. They follow up. You send half the files. They ask clarifying questions. You dig through old emails. The return finally gets filed, and you swear next year will be different.

Here's how to actually make it different.

The Complete Document Checklist

Your accountant needs these items to prepare your corporate tax return (T2). Not some of them. All of them.

Financial Records

DocumentWhat It IsWhere to Get It
Bank statements (all 12 months)Every account the corporation usesYour bank's online portal
Credit card statements (all 12 months)Business credit card activityYour credit card provider
Revenue recordsInvoices issued, contracts, sales reportsYour invoicing tool or records
Expense receiptsProof of business purchasesYour email, phone, filing system
Loan statementsBusiness loans, lines of creditYour lender
Investment statementsCorporate investment accountsYour brokerage

Payroll Documents

DocumentWhat It IsWhen It's Needed
T4 slipsSalary paid to yourself/employeesIf you paid salary
T5 slipsDividends declaredIf you paid dividends
Payroll remittance recordsCPP/tax payments to CRAIf you paid salary
T4 SummaryAnnual payroll summaryIf you paid salary

Tax-Specific Items

DocumentWhat It Is
Prior year's Notice of AssessmentCRA's assessment of last year's return
GST/HST returns filedQuarterly or annual GST filings
Previous year's financial statementsFor comparative purposes
Shareholder loan balanceAmount owed to/from shareholders
Auto logbook (if applicable)Business vs personal km driven
Home office detailsSquare footage, expenses, rental agreement

When Your Accountant Needs Everything

Timing depends on your fiscal year-end. Here's the calendar:

Fiscal Year-EndT2 Filing DeadlineTax Payment Deadline
December 31June 30February 28 (or March 1 if eligible for 3-month rule)
March 31September 30May 31 (or June 30)
June 30December 31August 31 (or September 30)

The 3-month payment rule: CCPCs with taxable income under $500,000 in the current and prior year (and claiming the small business deduction) get three months after year-end to pay, instead of two.

Most accountants want your documents 2-3 months before the filing deadline. For a December 31 year-end, that means everything should be in their hands by March or April at the latest.

The earlier you provide documents, the less rushed and more thorough the work will be. Accountants filing 200 returns in June don't have the same attention bandwidth as they do in March.

The Five Things That Frustrate Accountants Most

1. Missing Receipts

"I bought something but I can't find the receipt." Every missing receipt is a potential deduction lost. Digital receipts in your email count. Bank statement line items without receipts are harder to defend in an audit.

2. Mixed Personal and Business Transactions

When your business card has grocery charges and your personal card has office supplies, your accountant has to sort through every transaction to determine what's business and what's personal. This takes time and costs you money.

3. Unexplained Transfers

Money moving between your personal and corporate accounts without context. Is it a salary payment? A shareholder loan? A capital contribution? If you don't label it, your accountant has to guess.

4. Last-Minute Document Delivery

Sending documents the week before the filing deadline means your accountant is doing rushed work. Rushed work means potential errors or missed deductions. It also means higher fees, since many firms charge premiums for late filers.

5. No Bookkeeping at All

Handing your accountant a box of receipts and bank statements is not bookkeeping. It's data entry, and your accountant will charge you for it. Often at a higher rate than a bookkeeper would.

How to Be the Client Your Accountant Loves

Keep Books Monthly

Spend 30 minutes at the end of each month categorizing transactions and reconciling your bank account. This single habit eliminates 80% of year-end stress.

Use Consistent Categories

Pick expense categories and stick with them all year. Don't call it "Office Supplies" in January and "Supplies & Materials" in March. Consistency makes your accountant's job faster and your bill lower.

Label Every Transfer

Any money moving between personal and corporate accounts should have a clear note: "Salary - January 2026" or "Shareholder loan repayment" or "Dividend payment Q3." Your future self and your accountant will both thank you.

Send Everything at Once

Don't send documents in five separate emails over three weeks. Compile everything, check it against the checklist above, and send one complete package. If something is missing, note it and explain when it will be available.

Ask Questions Early

If you're unsure whether something is deductible, ask your accountant in real time, not at year-end. Most accountants prefer a quick email in July over a complicated question in April when they're buried in filings.

A Simple Monthly Routine

TaskTime Required
Categorize the month's transactions15 minutes
Scan or save any paper receipts5 minutes
Reconcile bank statement10 minutes
Note any unusual transactions5 minutes
Total35 minutes/month

That's about 7 hours per year. Compare that to the 15-20 hours of frantic year-end catching up that most solo corp owners do.

How ledg Helps

ledg handles the monthly bookkeeping routine for your corporation, so when your accountant asks for documents, you export a clean, categorized record of every transaction. No scrambling, no missing receipts, no "I'll get that to you next week."

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