Tax preparation records what has already happened. Year-end tax planning focuses on the records and decisions that still need attention before your business’s tax year closes.

For many Canadian sole proprietors and calendar-year businesses, December 31 is an important planning date. Corporations follow their own fiscal tax year, so December 31 does not apply to every business.

Before year-end, bring your books up to date, estimate your 2026 tax position and flag decisions that need review before the deadline passes. This guide covers the records, balances and questions to review first.

What is year-end tax planning for a small business?

Year-end tax planning means reviewing your business’s results, records and upcoming decisions before the tax year closes. Tax preparation happens after the period ends. Planning happens first, while there is still time to finish the books, estimate taxes and address decisions tied to year-end.

The goal is to understand what the business earned, what it owes and how much cash to set aside before deadlines arrive.

The rules depend on your legal structure, fiscal period and accounting method. Sole proprietors report business income on a calendar-year basis unless they use an eligible alternative reporting method. A corporation’s tax year follows its fiscal period, so its year-end does not have to be December 31. The Canada Revenue Agency’s (CRA) fiscal-period guidance explains how timing differs by business structure.

Start by confirming the year-end that applies to your business. That date sets the deadline for year-end planning.

How do you estimate your 2026 business income before year-end?

To estimate your 2026 business income before year-end, bring your bookkeeping up to date, reconcile bank, credit card and loan accounts, review your core financial reports and project the revenue and expenses still expected before your tax year closes. Use that estimate to set aside cash for taxes and flag items that need review.

Start with the latest completed month. Reconcile each bank, credit card and loan account, then review your profit and loss statement, balance sheet, trial balance, aged receivables and aged payables for missing or unusual items.

Look for:

• Work completed but not invoiced.
• Customer deposits.
• Unpaid supplier bills.
• Prepaid expenses.
• Owner transactions.
• Loan payments that include principal and interest.

Then add known year-end activity to what has already happened. Estimate the revenue you still expect to earn and the expenses you still expect to incur before year-end.

Records to review

Before estimating your year-end position, pull:

• Profit and loss statement
• Balance sheet
• Trial balance
• Accounts receivable ageing
• Accounts payable ageing
• Bank and credit card reconciliations
• Loan statements
• Payroll reports
• Goods and services tax/harmonized sales tax (GST/HST) balances

Wave Accounting includes core financial reports such as profit and loss and balance sheet reports.*

Your accounting profit isn’t your final tax bill. Use your year-end estimate to plan your tax cash reserve, then review the tax calculation before year-end.

What should be on your 2026 year-end tax planning checklist?

Your 2026 year-end tax planning checklist should cover the records, balances and decisions that need attention before your tax year closes. Start with bookkeeping and reconciliations, then review receivables, expenses, assets, inventory, payroll and tax accounts. Finish by updating your tax estimate and meeting with your tax professional before year-end deadlines pass.

1. Finish transaction entry and reconciliation — do now
   ‍Record revenue, expenses, GST/HST, transfers and loan payments. Reconcile bank, credit card and loan accounts so your reports reflect the year’s activity.
2. Review accounts receivable and year-end revenue timing — confirm with accountant
   Check unpaid invoices, work completed but not invoiced, customer deposits, credits and invoices you don’t expect to collect. Keep a list of items that cross the year-end date. Flag timing questions for review instead of changing invoice dates to influence the result.
3. Review accounts payable and year-end expense timing — Confirm with accountant
   Record supplier bills tied to the year and gather supporting receipts, invoices, and contracts. Separate operating expenses from prepaid costs and capital purchases as outlined in the CRA’s guidance on business expenses and current or capital expenses.
4. Evaluate planned equipment and asset purchases — confirm with accountant
   Start with business needs and cash flow. Capital property comes off your taxes over time through capital cost allowance (CCA). The CRA’s available-for-use rules determine when property becomes eligible for a CCA claim.
5. Count and review inventory — do now
   Complete your year-end inventory count, document damaged or obsolete stock, and keep support for the valuation used to comply with the CRA’s inventory and cost of goods sold guidance.
6. Review payroll and owner compensation — confirm with accountant
   Check final payroll records, taxable benefits, reimbursements, vacation balances, bonuses and source deductions. Incorporated owners should add salary-versus-dividend decisions to the year-end discussion list.
7. Check income-tax instalments and expected balances — do now
   Compare paid instalments against updated tax estimates per the CRA’s individual instalment dates and corporate instalment dates. For 2026, individual installments are due March 16, June 15, September 15, and December 15.
8. Reconcile GST/HST and payroll accounts — do now
   Match filed returns, remittances and account balances to your books. Investigate differences before filing season.
9. Gather support for deductions and credits — prepare for filing
   Organize receipts, contracts, mileage records, home-office records and other supporting documents. Confirm which costs qualify before claiming them.
10. Meet with your tax professional before the deadline — confirm with accountant
    Bring your updated reports, tax-payment estimate and a list of transactions that need a decision. Focus on items with a deadline.

How does your business structure affect your year-end tax planning?

Your business structure determines whose tax return reports the business income, which year-end matters and which records need review. Sole proprietors report business income on their personal return, partners report their share of partnership income and corporations file their own T2 Corporation Income Tax Return. Confirm your structure and year-end before treating December 31 as your planning deadline.

Sole proprietorships

Sole proprietors report business income through their personal income tax return. Self-employed taxpayers have separate filing and balance-due deadlines, with the payment deadline arriving first. Check the CRA’s current filing and payment dates before tax season.

Partnerships

Partners report their share of partnership income or loss on their own tax returns. Some partnerships also need to file a T5013 Partnership Information Return. 

Corporations

A corporation has its own fiscal tax year and files a T2 return within six months of year-end. The tax balance is due earlier: two months after year-end, or three months when a Canadian-controlled private corporation meets the CRA’s conditions.

Calendar year vs. fiscal year

Calendar-year business

• October → review records
• November → decide what needs action
• December 31 → year-end closes

Corporation with another fiscal year-end

• Three months before year-end → review records
• Two months before → decide what needs action
• Final month → complete time-sensitive steps

What should you ask before buying equipment or other assets?

Before buying equipment or another business asset, ask three things: Does the business need it now? Does cash flow support the purchase? Will the asset be available for use before year-end? A year-end purchase does not create an immediate deduction by itself. You deduct depreciable capital property over time through capital cost allowance (CCA).

Current operating expenses cover day-to-day costs such as supplies or utilities. The CRA’s capital cost allowance guidance defines capital property, including equipment, furniture, or certain vehicles, as providing value over a longer period.

Before committing to the purchase, check:

• What happens to cash reserves after the purchase or financing payments?
• Will delivery, installation and setup be complete before year-end?
• Does the purchase involve financing, a trade-in or a grant?
• Will the asset have both business and personal use?
• How will GST/HST and any input tax credits affect the cash outlay?

The CRA’s available-for-use rules explain when property is considered available for use.

What should you review for year-end payroll, bonuses and owner compensation?

For year-end payroll, review employee details, taxable benefits, reimbursements, vacation balances, bonuses and source deductions. Check that payroll records match what was paid and remitted, then review bonus timing and payroll treatment. Incorporated owners should also review salary versus dividends based on personal tax, corporate tax, CPP contributions, RRSP room and cash needs.

Confirm that employee information is current, wages and taxable benefits are recorded and source deductions match what was paid and remitted. Wave’s Canada payroll year-end checklist also covers reconciliation, approved payrolls, benefits, deductions and T4 review.

Bonuses need separate review. Employers report bonuses on the employee’s T4 for the year the employee receives the payment, and CPP, EI and income-tax deductions apply. See the CRA’s bonus and irregular payment guidance.

For incorporated owners, salary versus dividends affects personal and corporate tax, CPP contributions, RRSP room and how much cash leaves the business. Review the full picture instead of following a blanket rule.

Keep worker classification separate from compensation planning. Classification answers whether the worker is an employee or self-employed.

What should you review in inventory, receivables and other year-end balances?

Review inventory, receivables, payables, loans, credit cards, prepaid expenses, deposits and owner accounts before year-end. Match each balance to invoices, bills, statements or other records, then clear old or duplicate items. Flag amounts that cross the year-end date and need tax treatment confirmed.

For inventory, complete the year-end count, identify damaged or obsolete stock, and keep support for the valuation method used in line with the CRA’s inventory and cost of goods sold guidance.

For accounts receivable, confirm customer balances, resolve credits and duplicate invoices and identify invoices you don’t expect to collect. For accounts payable, record valid unpaid bills, apply payments to the right bills and investigate old or disputed balances.

Reconcile loans and credit cards to lender statements, separating principal, interest and fees. Then review prepaid expenses, customer deposits and expenses or revenue that belong to the year but have not yet been paid or received.

Separate personal transactions, draws, contributions and shareholder loans from business activity before year-end.

Balance-sheet clean-up

How should you plan for tax payments and protect cash flow?

Plan tax payments by comparing your updated tax estimate with income-tax instalments, GST/HST remittances and payroll deductions already paid. Add the remaining amounts to a 13-week or monthly cash-flow forecast so tax obligations sit alongside payroll, suppliers and other business costs.

For most individuals required to pay 2026 tax instalments, the final instalment date of the year is December 15. Corporations pay income-tax instalments monthly. Eligible small Canadian-controlled private corporations (CCPCs) qualify to pay quarterly instead. See the CRA’s quarterly instalment eligibility requirements and individual instalment due dates.

Keep each government obligation separate in your forecast:

• Income tax
• GST/HST
• Payroll source deductions
• Other government remittances

Separating these amounts shows what the business still owes and when the cash leaves the account. If the forecast shows a shortfall, contact your accountant and the relevant tax authority before the deadline.

Don’t change instalment amounts, take on financing or enter a payment arrangement based on a generic rule. Those decisions depend on your business’s cash flow and tax position.

What are common year-end tax planning mistakes?

Common year-end tax planning mistakes include waiting until filing season to review time-sensitive decisions, assuming every corporation has a December 31 year-end and buying equipment only for a tax deduction. 

Watch for these issues before year-end:

• Waiting until tax return preparation to discuss transactions that required action before year-end.
• Assuming December 31 is the fiscal year-end for every corporation.
• Buying equipment only to create a deduction.
• Treating every cash payment as an immediate expense.
• Treating every customer deposit as current-year revenue.
• Confusing accounting profit with taxable income.
• Treating the bank balance as your tax reserve.
• Ignoring inventory, shareholder accounts, GST/HST balances or payroll balances.
• Following a generic salary-versus-dividend rule without reviewing the business and owner together.
• Using an undated tax checklist after rules, deadlines or incentives have changed.

Use this sequence instead: clean up your books, estimate the year, identify decisions tied to a deadline and review them before the tax year closes.

What should you do next for year-end tax planning?

Start by bringing your books up to date, confirming the year-end that applies to your business and estimating your 2026 tax position. Then review receivables, payables, inventory, payroll, assets and government balances for items that need action before the tax year closes.

Bring your reports, tax-payment estimate and unresolved questions to your tax professional, then address time-sensitive items first.

Use Wave Accounting to review your current reports and reconciliations. For filing preparation, work through Wave’s 2026 tax checklist. If you want bookkeeping support or accounting coaching, review Wave Advisors.

Year-end tax planning FAQs

What is the difference between tax planning and tax preparation?

Tax planning happens before year-end, while there is still time to review decisions and records. Tax preparation happens after the period closes and focuses on completing the return.

Does every small business have a December 31 tax year-end?

No. Sole proprietors report business income on a calendar-year basis unless they use an eligible alternative reporting method outlined in the CRA’s fiscal-period guidance. Corporations follow their own fiscal tax year.

What happens if I miss a tax installment?

If you miss a required tax installment, the CRA charges daily-compounded interest on late or insufficient payments. You may also face a penalty if your installment interest for the year exceeds $1,000. 

Should you buy equipment before December 31 for a tax deduction?

Buy equipment for a business need, not for the deduction alone. Eligible depreciable property is claimed over time through capital cost allowance.

What records do I need to keep and for how long?

Keep invoices, receipts, contracts, bank and credit card statements, and other records that support your business income and expenses. The CRA generally requires you to keep them for six years from the end date of the last tax year they relate to.

How do tax instalments work for a Canadian small business?

Individuals with an instalment requirement follow the CRA’s individual instalment dates. Corporations pay monthly. Eligible small CCPCs qualify to pay quarterly instead.