Free Resource · 2026 Tax Year · Updated for Current Rules
2026 Canadian Small Business Tax Guide
The most comprehensive free tax reference for Canadian small business owners. Every tax rate, deduction, credit, deadline and strategy in one guide. Written by a licensed CPA with 900+ five-star reviews. Bookmark this page.
What This Guide Covers
1. 2026 Corporate Tax Rates (Federal + Provincial) 2. Small Business Deduction (SBD) 3. Sole Proprietorship vs. Corporation 4. HST/GST for Small Businesses 5. Deductible Business Expenses 6. CCA Classes and Immediate Expensing 7. Payroll: CPP, EI and Income Tax 8. Salary vs. Dividend Optimization 9. Home Office Deduction 10. Vehicle Expenses 11. SR&ED Tax Credits 12. Lifetime Capital Gains Exemption (LCGE) 13. Holding Company Structuring 14. Passive Income and the SBD Grind 15. Key Tax Deadlines for 2026 16. CRA Audit Triggers 17. Frequently Asked Questions1. 2026 Corporate Tax Rates: Federal + Provincial
Canadian-controlled private corporations (CCPCs) pay tax at two levels: federal and provincial. The combined rate depends on the type of income and the province of operation.
Combined Federal + Provincial Rates for CCPCs (2026)
| Province | Small Business Rate (SBD, first $500K active) | General Rate (active above $500K) | Investment Income (passive) |
|---|---|---|---|
| Ontario | 12.2% | 26.5% | 50.17% |
| British Columbia | 11.0% | 27.0% | 50.67% |
| Alberta | 11.0% | 23.0% | 46.67% |
| Quebec | 12.2% | 26.5% | 50.17% |
| Manitoba | 9.0% | 27.0% | 50.67% |
| Saskatchewan | 10.0% | 27.0% | 50.67% |
| Nova Scotia | 11.0% | 29.0% | 52.67% |
| New Brunswick | 11.5% | 29.0% | 52.67% |
| Newfoundland | 12.0% | 30.0% | 53.67% |
| PEI | 10.0% | 31.0% | 54.67% |
Federal Corporate Tax Rates (2026)
| Income Type | Federal Rate | Notes |
|---|---|---|
| Active business income (SBD, first $500K) | 9.0% | Available to CCPCs. Combined with provincial small business rate. Ontario combined: 12.2%. |
| Active business income (above $500K) | 15.0% | General corporate rate. Combined with provincial general rate. Ontario combined: 26.5%. |
| Manufacturing and processing (M&P) | 15.0% | M&P rate equals the general rate federally. Some provinces provide a lower M&P rate. Ontario M&P: 25.0% combined (10% provincial vs. 11.5% general). |
| Investment income (passive) | 38.67% | Includes 10.67% refundable portion (RDTOH). Combined with provincial investment tax. Ontario combined: 50.17%. Partially refundable when dividends are paid. |
2. Small Business Deduction (SBD)
The SBD reduces the federal corporate tax rate from 15% to 9% on the first $500,000 of active business income earned by a CCPC. Combined with the Ontario small business rate (3.2%), the total rate is 12.2%. This is the single most valuable tax benefit available to Canadian small businesses.
| SBD Requirement | Details |
|---|---|
| Eligible entity | Canadian-Controlled Private Corporation (CCPC). Must be incorporated in Canada. Must not be controlled by public corporations or non-residents. |
| Income type | Active business income only. Passive investment income (interest, dividends from non-connected corps, rental income, capital gains) does NOT qualify for the SBD. |
| Annual limit | $500,000 per year. Active business income above $500,000 is taxed at the general rate (26.5% in Ontario). |
| Associated corporations | Associated corporations must share the $500,000 SBD limit. Two corporations controlled by the same person share one $500,000 limit between them. File Schedule 23 to allocate. |
| Passive income grind | If the corporation (or associated group) earns more than $50,000 in aggregate investment income, the SBD limit is reduced by $5 for every $1 above $50,000. At $150,000 in passive income, the SBD is eliminated entirely. |
| Taxable capital grind | If the corporation (or associated group) has taxable capital employed in Canada exceeding $10 million, the SBD is gradually reduced. At $15 million in taxable capital, the SBD is eliminated. |
3. Sole Proprietorship vs. Corporation
| Annual Net Income | Sole Proprietor Tax (Ontario) | Corporate Tax (12.2% SBD) | Annual Savings from Incorporating |
|---|---|---|---|
| $60,000 | $11,800 | $7,320 | $4,480 |
| $80,000 | $18,200 | $9,760 | $8,440 |
| $100,000 | $24,400 | $12,200 | $12,200 |
| $150,000 | $42,300 | $18,300 | $24,000 |
| $200,000 | $62,400 | $24,400 | $38,000 |
| $300,000 | $104,600 | $36,600 | $68,000 |
| $500,000 | $196,900 | $61,000 | $135,900 |
When to Incorporate: The breakeven point is approximately $50,000 to $60,000 in net income. Above $80,000, the annual savings exceed $8,000 and incorporation should not be delayed. Every year as a sole proprietor above $80,000 income is money lost permanently. Our incorporation fee is $35 (government filing fee additional). Incorporation Services →
4. HST/GST for Small Businesses
| Province | Rate | Tax Type |
|---|---|---|
| Ontario | 13% | HST (5% federal + 8% provincial) |
| British Columbia | 5% GST + 7% PST | Separate GST + PST |
| Alberta | 5% | GST only (no provincial sales tax) |
| Quebec | 5% GST + 9.975% QST | Separate GST + QST |
| Nova Scotia | 15% | HST |
| New Brunswick | 15% | HST |
| Newfoundland | 15% | HST |
| PEI | 15% | HST |
| Manitoba | 5% GST + 7% RST | Separate GST + RST |
| Saskatchewan | 5% GST + 6% PST | Separate GST + PST |
HST Registration Rules
| Rule | Details |
|---|---|
| Mandatory registration threshold | $30,000 in worldwide taxable revenue in a single calendar quarter or in 4 consecutive calendar quarters. Once exceeded, you must register within 29 days. |
| Voluntary registration | You can register voluntarily even if below $30,000. This allows you to claim ITCs on startup expenses. Recommended for most businesses at incorporation. |
| Small supplier exemption | If revenue stays below $30,000, you do not need to register and do not charge HST. You also cannot claim ITCs. |
| Quick Method | Simplified HST filing. You charge 13% HST but remit a lower percentage (3.6% for services, 8.8% for goods). The difference is income. Best for service businesses with low input costs (consulting, IT, professional services). Not recommended for businesses with high material costs. |
| Zero-rated supplies | Exports (goods and services sold to non-residents outside Canada) are taxed at 0%. You charge 0% HST but claim ITCs on all Canadian expenses. This produces HST refund cheques. Common for SaaS, IT consulting with US clients and export businesses. GST/HST Filing Services → |
5. Deductible Business Expenses
| Expense Category | Deductible? | Limits and Notes |
|---|---|---|
| Rent (office, retail, warehouse) | Yes (100%) | Business premises rent fully deductible. Deposit may be prepaid expense. |
| Salaries and wages | Yes (100%) | Includes CPP, EI employer portions, vacation pay, benefits. |
| Office supplies | Yes (100%) | Paper, toner, postage, stationery, cleaning supplies. |
| Professional fees | Yes (100%) | Accounting, legal, consulting. Tax preparation fees deductible. |
| Advertising and marketing | Yes (100%) | Google Ads, social media, print, radio, website costs. Canadian media: 100%. Foreign media: limited deduction. |
| Insurance | Yes (100%) | Business insurance, CGL, E&O, directors and officers, key person. |
| Meals and entertainment | 50% deductible | Business meals with clients: 50%. Staff parties and events (up to 6/year): 100%. Golf green fees: 0% (not deductible). |
| Travel | Yes (100%) | Airfare, hotel, taxi, car rental for business travel. Meals during travel: 50%. |
| Interest on business loans | Yes (100%) | Interest on loans used for business purposes. Principal repayment is not deductible. |
| Bad debts | Yes (when written off) | Accounts receivable that become uncollectible. Must be established as bad and written off in the year claimed. |
| Telephone, internet, software | Yes (business %) | Dedicated business line: 100%. Personal phone used for business: business percentage only. Software subscriptions: 100% if business-only. |
| Training and education | Yes (100%) | Courses, certifications, conferences directly related to the business. Must maintain or improve skills for the current business, not enter a new field. |
6. CCA Classes and Immediate Expensing
| CCA Class | Rate | Common Assets |
|---|---|---|
| Class 1 | 4% | Buildings (brick, stone, concrete). Most commercial and rental buildings. |
| Class 8 | 20% | Furniture, fixtures, appliances, equipment not in another class. Office furniture, kitchen equipment, signage. |
| Class 10 | 30% | Motor vehicles, trucks, trailers. Most business vehicles. |
| Class 10.1 | 30% (capped) | Passenger vehicles costing more than $37,000. CCA calculated on $37,000 max regardless of actual cost. |
| Class 12 | 100% | Small tools under $500, computer software, china, cutlery, linen. |
| Class 13 | Straight-line | Leasehold improvements. Amortized over the lease term plus one renewal period. |
| Class 14.1 | 5% | Goodwill, customer lists, trademarks, franchise rights (post-2017). |
| Class 16 | 40% | Taxis, rental vehicles, delivery vehicles used for short-term hire. |
| Class 43 | 30% | Manufacturing and processing equipment. |
| Class 50 | 55% | Computer hardware, servers, network infrastructure, electronic data processing equipment. |
| Class 54 | 30% | Zero-emission vehicles costing up to $61,000. Enhanced CCA for EVs. |
Immediate Expensing for CCPCs: Canadian-Controlled Private Corporations can fully deduct up to $1.5 million in eligible depreciable property in the year of acquisition. This applies to property in CCA classes 1 through 6, 8, 10, 12, 14.1, 16, 17, 20, 43, 43.1, 43.2, 44, 46, 50 and 53 (among others). A CCPC purchasing $400,000 in equipment deducts the full $400,000 in year one instead of 20% or 30% declining balance. Incorporate before purchasing equipment to access this benefit.
7. Payroll: CPP, EI and Income Tax (2026)
| Payroll Component | Employee Rate | Employer Rate | 2026 Maximum |
|---|---|---|---|
| CPP (first ceiling: $71,300) | 5.95% | 5.95% | Employee max: $4,034. Employer max: $4,034. Basic exemption: $3,500. |
| CPP2 (second ceiling: $71,300 to $81,200) | 4.00% | 4.00% | Employee max: $396. Employer max: $396. Applies to earnings between first and second ceiling. |
| EI | 1.64% | 2.30% (1.4x employee rate) | Employee max: $1,077. Employer max: $1,508. Max insurable earnings: $65,700. |
| Income tax (federal + provincial) | Per tax tables | N/A (withheld from employee) | Employer withholds and remits based on TD1 and pay amount. Use CRA payroll deductions calculator or payroll software. |
| Vacation pay (Ontario) | N/A | 4% (under 5 years) or 6% (5+ years) | Calculated on gross earnings. Accrued as a liability. Paid when vacation is taken or on each pay if the employee does not take vacation. |
Payroll Remittance Deadlines: Regular remitters: 15th of the month following the pay period. Quarterly remitters (small employers under $25,000 annual payroll): 15th of the month after the quarter. Accelerated remitters (annual payroll over $25,000): within 3 business days for threshold 1, within 3 business days for threshold 2 (over $100,000). Late remittance penalties: 3% for 1 to 3 days late, 5% for 4 to 5 days, 7% for 6 to 7 days, 10% for 8+ days. Payroll Services →
8. Salary vs. Dividend Optimization
| Factor | Salary | Dividend |
|---|---|---|
| Deductible to the corporation? | Yes. Reduces corporate taxable income. | No. Paid from after-tax corporate income. |
| CPP contributions | Yes. Employee and employer CPP payable. Creates CPP retirement benefit. | No CPP on dividends. No CPP retirement benefit created. |
| EI contributions | No (for shareholders owning 40%+). Exempt from EI. | No EI on dividends. |
| RRSP room | Yes. 18% of earned income creates RRSP room (max $32,490 for 2026). | No. Dividends do not create RRSP room. |
| Childcare expense deduction | Yes. Salary counts as earned income for childcare deduction. | No. Dividends do not qualify. |
| Personal tax rate | Higher marginal rates on salary. | Lower effective rates due to the dividend tax credit. Eligible dividends taxed at lower personal rates than salary. |
| Optimal split | Most small business owners benefit from a 55/45 to 65/35 salary-dividend split. The exact ratio depends on RRSP room needs, CPP benefit goals, provincial rates and personal circumstances. A $200,000 extraction at 60/40 salary-dividend: $120,000 salary (creates $21,600 RRSP room) + $80,000 dividends. We calculate the optimal split for every client. | |
9. Home Office Deduction
| Requirement | Details |
|---|---|
| Eligibility | The home office must be your principal place of business (more than 50% of work time) OR used exclusively and regularly to meet clients or customers. |
| Calculation method | Determine the percentage of the home used for business: square footage of the office / total square footage of the home. A 200 sq ft office in a 2,000 sq ft home = 10%. |
| Deductible expenses (employee) | If an employee working from home: utilities, internet, office supplies, maintenance costs. NOT mortgage interest, NOT property tax, NOT insurance. |
| Deductible expenses (self-employed or through corp) | If self-employed or the corporation pays rent to the shareholder: rent (or mortgage interest), property tax, utilities, insurance, internet, maintenance, cleaning. NOT the mortgage principal. |
| CCA on home | You CAN claim CCA on the business portion of the home, but it taints the principal residence exemption. We strongly recommend NOT claiming CCA on your home to preserve the PRE. |
10. Vehicle Expenses
| 2026 Vehicle Limits | Amount |
|---|---|
| CCA limit (Class 10.1) for passenger vehicles | $37,000 (before HST). CCA calculated on this maximum regardless of actual purchase price. |
| Deductible lease payments (monthly limit) | $1,050/month (before HST). |
| Deductible interest on auto loans | $350/month maximum. |
| Tax-free auto allowance (per km) | $0.72 for the first 5,000 km. $0.66 for each additional km. Northern and prescribed zones: $0.76 for first 5,000 km. |
| Logbook requirement | CRA requires a logbook tracking business vs. personal km for the entire year. Without a logbook, CRA can deny the entire vehicle deduction. Record: date, destination, purpose, km driven for each business trip. |
11. SR&ED Tax Credits
| SR&ED Component | Details |
|---|---|
| Federal ITC rate (CCPC) | 35% refundable on the first $300,000 of eligible expenditures. 15% non-refundable on amounts above $300,000. |
| Ontario ITC rate | 3.5% refundable (Ontario Innovation Tax Credit) on eligible expenditures for CCPCs with Ontario income. |
| Eligible expenditures | Salaries and wages of employees performing SR&ED, contractor payments (80%), materials consumed in SR&ED. Overhead via proxy method (55% of eligible salaries) or traditional method. |
| Who qualifies | Any CCPC that develops new products, processes or technologies through systematic investigation. Software development, hardware design, manufacturing process improvement, chemical formulation, clinical trials, AI/ML development. |
| Filing deadline | T661 must be filed within 18 months of the fiscal year-end. Missing the deadline = forfeiting the entire claim for that year. No extensions. |
Example: A software company with $250,000 in eligible developer salaries receives a federal refundable credit of $87,500 (35% of $250,000) plus Ontario ITC of $8,750 (3.5% of $250,000) = $96,250 total. This is a direct cash refund from CRA. SR&ED Services →
12. Lifetime Capital Gains Exemption (LCGE)
| LCGE Component | 2026 Amount |
|---|---|
| LCGE for qualifying small business corporation (QSBC) shares | $1,281,866 (indexed annually for inflation) |
| LCGE for qualifying farm property | $1,281,866 |
| LCGE for qualifying fishing property | $1,281,866 |
| LCGE multiplication | Each shareholder has their own $1,281,866 LCGE. Issuing shares to your spouse and adult children at incorporation multiplies the exemption. 2 shareholders = $2,563,732. 4 shareholders = $5,127,464. |
| QSBC requirements | At the time of sale: (1) CCPC. (2) 90%+ of assets used in active business (by FMV). (3) Throughout the 24 months before sale: owned by the taxpayer and 50%+ of assets used in active business. Purification required if investments exceed 10% of FMV. |
13. Holding Company Structuring
| Holdco Benefit | How It Works |
|---|---|
| Creditor protection | Retained earnings moved from the opco to the holdco via tax-free inter-company dividends. If the opco is sued, the holdco assets are separate and protected. |
| Tax-free dividend transfer | Dividends paid from one Canadian corporation to another connected Canadian corporation are received tax-free (subsection 112(1) deduction). No tax on the transfer from opco to holdco. |
| Investment separation | The holdco invests independently. Investment income inside the holdco does not affect the opco's SBD (passive income grind applies at the associated group level, but the holdco allows management of the timing and type of passive income). |
| Estate planning | The holdco enables estate freezes, family trust structures, intergenerational transfers and LCGE multiplication. The holdco's share structure can be designed for probate minimization. |
| When to set up | When retained earnings inside the opco exceed $200,000. Do not set up too early (unnecessary cost and complexity) or too late (accumulated assets already at risk). Corporate Tax Planning → |
14. Passive Income and the SBD Grind
| Aggregate Investment Income (AII) | SBD Reduction | Lost SBD Room | Additional Tax Cost (Ontario) |
|---|---|---|---|
| $0 to $50,000 | None | $0 | $0 |
| $75,000 | $125,000 reduction | $125,000 of SBD lost | $17,875/year |
| $100,000 | $250,000 reduction | $250,000 of SBD lost | $35,750/year |
| $125,000 | $375,000 reduction | $375,000 of SBD lost | $53,625/year |
| $150,000+ | $500,000 (full elimination) | Entire SBD eliminated | $71,500/year |
$150,000 in Passive Income Costs Your Business $71,500/Year: Aggregate investment income (interest, foreign dividends, taxable capital gains) above $50,000 grinds down the SBD by $5 for every $1. At $150,000 in passive income, the entire SBD is eliminated: the opco pays 26.5% instead of 12.2% on all $500,000 of active business income. Strategies to manage: time capital gain realizations, use Canadian eligible dividend-paying equities (connected Canadian dividends are excluded from AII), establish a holdco, elect capital dividends from the CDA to reduce retained investment balances.
15. Key Tax Deadlines for 2026
| Deadline | What Is Due | Penalty for Missing |
|---|---|---|
| 6 months after fiscal year-end | T2 corporate tax return | 5% of unpaid tax + 1%/month for up to 12 months. |
| 2 months after fiscal year-end (3 months for small CCPCs) | Corporate tax balance owing | Interest at the prescribed rate (compounded daily) on the unpaid balance from the due date. The 3-month extension applies to CCPCs with taxable income under $500,000 and taxable capital under $10 million in the prior year. |
| Last day of the month following the reporting period | HST/GST return and payment | 1% of balance owing + 0.25% per month (max 12 months). |
| April 30, 2027 | T1 personal tax return (for 2026 tax year) | 5% of unpaid tax + 1%/month for up to 12 months. |
| June 15, 2027 (payment still April 30) | T1 for self-employed individuals and their spouses | Extended filing deadline but payment still due April 30. Interest on unpaid balance from May 1. |
| February 28, 2027 | T4, T4A, T5018 slips | $25/day per slip (min $100, max $2,500 per filing). |
| Last day of February | RRSP contribution deadline (for prior tax year deduction) | No penalty for missing, but you lose the deduction for that tax year. Contribution can still be made later. |
| 18 months after fiscal year-end | SR&ED T661 claim | Entire SR&ED claim forfeited. No extensions. No late filing allowed. |
16. CRA Audit Triggers for Small Businesses
| # | Trigger | Why CRA Flags It |
|---|---|---|
| 1 | Consistent losses year after year | CRA questions whether the business is a genuine business or a hobby. 3+ years of losses with no reasonable expectation of profit increases audit risk. |
| 2 | High vehicle expense claims | Vehicle deductions are the #1 most frequently adjusted item in CRA audits. No logbook = full denial. Business-use percentages above 90% are scrutinized. |
| 3 | Large meal and entertainment deductions | CRA reviews receipts, business purpose documentation and guest lists. Claims that are disproportionate to revenue trigger review. |
| 4 | Cash-intensive businesses | Restaurants, retail, salons, construction. CRA uses statistical analysis to compare reported revenue against industry benchmarks. Unreported cash income is the #1 target. |
| 5 | Shareholder loans not repaid | CRA reviews shareholder loan accounts for section 15(2) compliance. Loans not repaid within the prescribed timeline are included in shareholder income. |
| 6 | Worker misclassification | Classifying employees as independent contractors to avoid CPP, EI and payroll obligations. CRA targets construction, cleaning, trucking and IT consulting industries. |
| 7 | HST mismatch between returns and financial statements | CRA cross-references HST filings against the T2 corporate tax return. If revenue on the T2 does not match HST reported revenue, CRA investigates. |
| 8 | Large home office claims | Business-use percentages above 30% to 40% are reviewed. CRA may request a floor plan, photos and proof that the space is used exclusively for business. |
| 9 | Missing T5018 slips for subcontractors | Construction and transportation companies must file T5018. Missing slips trigger an audit of the entire subcontractor payment structure. |
| 10 | Capital gains reported as business income (or vice versa) | CRA reviews the frequency and nature of transactions. Habitual buying and selling (real estate, securities) may be reclassified from capital gains (50% inclusion) to business income (100%). CRA Audit Support → |
Frequently Asked Questions: Canadian Small Business Tax
What is the small business tax rate in Canada for 2026?
The federal small business rate is 9% on the first $500,000 of active business income for CCPCs. Combined with the provincial rate, the total varies by province: Ontario 12.2%, BC 11.0%, Alberta 11.0%, Quebec 12.2%. The SBD is the most valuable tax benefit for Canadian small businesses. Corporate Tax Filing →
When should I incorporate my business?
When net income exceeds $60,000 to $80,000. At $80,000, you save $8,440/year (Ontario). At $150,000: $24,000/year. At $200,000: $38,000/year. Every year as a sole proprietor above $80,000 is money lost permanently. Incorporation also provides liability protection, LCGE eligibility and holdco capability. Incorporation Services →
Should I pay myself salary or dividends?
A mix of both. Salary creates RRSP room and CPP benefits but is taxed at higher marginal rates. Dividends have lower personal tax rates but create no RRSP room. Most business owners benefit from a 55/45 to 65/35 salary-dividend split. The optimal ratio depends on your income, RRSP room, CPP goals and family situation. We calculate the exact split for every client.
When do I need to register for HST?
Mandatory when worldwide taxable revenue exceeds $30,000 in a single calendar quarter or 4 consecutive quarters. We recommend voluntary registration at incorporation to claim ITCs on startup expenses. Businesses with US or international clients benefit from zero-rated treatment producing quarterly HST refund cheques. GST/HST Filing →
What is the LCGE and how do I use it?
The Lifetime Capital Gains Exemption shelters $1,281,866 (2026, indexed) in capital gains when you sell qualifying small business corporation shares. Each shareholder has their own LCGE. Issuing shares to family members at incorporation multiplies the exemption. 2 shareholders = $2,563,732 sheltered. Plan LCGE at incorporation, not at sale.
What is the passive income SBD grind?
Passive investment income (interest, foreign dividends, taxable capital gains) above $50,000 reduces the $500,000 SBD limit by $5 for every $1. At $150,000, the SBD is eliminated entirely, costing up to $71,500/year in additional tax. Manage by timing capital gains, using Canadian eligible dividends and establishing a holdco. Corporate Tax Planning →
When should I set up a holding company?
When retained earnings in the operating corporation exceed $200,000. The holdco receives dividends tax-free from the opco, invests independently, provides creditor protection and enables estate planning. Do not set up too early (unnecessary complexity) or too late (assets already at risk).
What expenses can I deduct?
Rent, salaries, office supplies, professional fees, advertising, insurance, travel, interest on business loans, telephone/internet, software, training. Meals and entertainment: 50%. Vehicle: business percentage with logbook. Home office: proportional to business-use square footage. Equipment: CCA or Immediate Expensing.
What is SR&ED and does my business qualify?
Scientific Research and Experimental Development is a federal tax credit for businesses developing new products, processes or technologies. CCPCs receive a 35% refundable credit on the first $300,000 in eligible expenditures. Software development, manufacturing process improvement and product engineering commonly qualify. T661 must be filed within 18 months of year-end. SR&ED Services →
How much does small business accounting cost?
Monthly bookkeeping from $100/month. Includes bank reconciliation, HST filing, monthly financials and T2 filed FREE every year. Incorporation from $35 (FREE for bookkeeping clients). CRA audit support FREE for all clients. Fixed flat fees. No hourly billing. Know Your Exact Fee →
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