Quick answer. Alberta's 2026 corporate tax rates for rental corporations: general corporate rate is 8% provincial + 15% federal = 23% combined for ACTIVE business income above the small business deduction limit. Small business deduction rate is 2% provincial + 9% federal = 11% combined on the first $500,000 of active business income. Passive rental income earned in a CCPC does NOT qualify for the small business deduction — instead it faces the higher passive investment income rate: 38.67% federal (28% Part I tax plus 10.67% Additional Refundable Tax) + 8% Alberta general = 46.67% initial rate. Of the federal component, 30.67% is refundable via the RDTOH (Refundable Dividend Tax on Hand) when the corporation pays taxable dividends to shareholders. RDTOH refund rate: 38.33% per $1 of taxable dividends paid. Net corporate tax on distributed passive income after RDTOH is approximately 20-23% after integration; retained earnings bear the full 46.67% until distribution. No material 2026 changes from 2025 rates. Note: Alberta's 8% general corporate rate remains the lowest of any Canadian province, a material multi-year competitive advantage for Alberta-incorporated businesses. Sources: TaxTips.ca 2026 Corporate Income Tax Rates, RNCanada Alberta Corporate Tax Guide 2026, CIBC CCPC Tax Planning Guide, BDO 2026 Corporate Income Tax Facts.
The Rate Table for Alberta Corporations (2026)
- Small business deduction (SBD) rate on first $500K active business income: 2% Alberta + 9% federal = 11% combined.
- General corporate rate on active business income above SBD limit: 8% Alberta + 15% federal = 23% combined.
- Passive investment income (CCPC): 8% Alberta + 38.67% federal (28% Part I + 10.67% Additional Refundable Tax) = 46.67% initial rate.
- RDTOH refund rate on passive investment income component: 30.67% of federal portion refunded to corp when taxable dividends paid.
- Effective RDTOH refund rate: 38.33% per $1 of taxable dividends paid to shareholders.
Why Rental Corps Face the High Passive Rate
The SBD rate (11%) applies to ACTIVE business income. Rental income earned by a CCPC is generally treated as passive investment income — 'aggregate investment income' under the Income Tax Act — regardless of the corporation's other characteristics. The SBD does not apply to typical residential rental income. The higher rate exists specifically to prevent using CCPCs as tax shelters for passive investment income; the RDTOH refund mechanism restores integration when dividends are paid.
Exception: Genuinely Active Rental Businesses
In narrow cases, rental income can qualify as ACTIVE business income eligible for the SBD. Typical criteria: 6+ full-time employees dedicated to the rental business, providing substantial services beyond basic tenancy (concierge, on-site management, integrated services like meals or housekeeping), operating similar to a hotel or serviced-suite business. Most typical Calgary residential landlord operations do NOT meet this bar. Consult a qualified tax advisor if you believe your operation may qualify for active business income treatment; the analysis is fact-specific.
The Integration Reality
Canadian corporate tax integration is designed so that the total tax on distributed income (corporate tax + shareholder personal tax on dividends) is approximately equal to the tax on the same income earned personally. Practically:
- Rental income earned personally by an Alberta top-bracket individual: approximately 48% personal marginal rate.
- Same rental income earned in an Alberta CCPC, retained: 46.67% corporate rate, no shareholder tax yet.
- Same rental income distributed as taxable dividends: 46.67% corporate rate less RDTOH refund on distribution, plus dividend tax to shareholder at approximately 41-43% (Alberta top bracket eligible dividend rate). Total combined rate approaches 48% under integration.
The corporate structure produces a small rate advantage on RETAINED earnings (46.67% vs 48%) and a large TIMING advantage on reinvestment (retain and redeploy before shareholder-level tax is due). Distribution eliminates most of the corporate advantage under integration.
The Alberta Advantage vs Other Provinces
Alberta's 8% general corporate rate is the lowest of any Canadian province. Comparative general corporate rates (provincial component only, 2026 approximate):
- Alberta: 8%
- British Columbia: 12%
- Ontario: 11.5%
- Quebec: 11.5%
- Saskatchewan: 12%
- Manitoba: 12%
- Atlantic provinces: mostly 14-16%
For corporations with meaningful active business income, the Alberta 4-8 percentage point advantage over other provinces is a material multi-year competitive factor. For passive rental income, the advantage is smaller (the federal 38.67% dominates the calculation), but Alberta still edges out other provinces on the provincial component.
2026 Changes
No material 2026 changes from 2025 rates for Alberta rental corporations. The federal government has occasionally proposed passive investment income limitation rules (e.g., grinding SBD access based on passive income levels), but these do not directly affect the 46.67% base rate on passive rental income. Watch federal budgets for any Additional Refundable Tax rate changes; the current 10.67% has been stable since introduction.
Frequently Asked Questions
Should I incorporate my Calgary rental portfolio?
Depends on portfolio size, hold horizon, reinvestment plans, and family circumstances. See our full incorporation guide at /blog/when-to-incorporate-calgary-rental-portfolio-2026 for the analytical framework.
Does incorporation reduce my tax on rental income?
In the long run under integration, no. In the short run on retained earnings that are reinvested rather than distributed, yes — the corporation pays 46.67% and defers shareholder-level tax until distribution, giving up small rate advantage but meaningful timing advantage.
What about the Alberta Investor Tax Credit or other incentives?
The Alberta Investor Tax Credit was cancelled for tax years after 2020. Current Alberta corporate tax incentives are primarily industry-specific (film, technology) and generally do not apply to typical rental corporations.
Does UrbanLease work with incorporated rental owners?
Yes. UrbanLease manages properties for both personal-name and incorporated owner clients under identical service standards. Owner reporting is provided in a format that plugs into corporate accounting. Property management services provided by Chabi.ca.
Bottom Line
Alberta's 2026 rental corporation tax framework: 46.67% initial rate on passive rental income (federal 38.67% + Alberta 8%), with 30.67% federal refundable via RDTOH on dividend distribution. Alberta's 8% general rate remains the lowest of any Canadian province. Integration means the corporation is a timing tool for reinvestment, not a rate arbitrage. UrbanLease supports owner reporting for corporate-owned Calgary rentals under Chabi.ca.
Reviewed 2026-08-02. General information only, not tax advice. Corporate tax rates and integration mathematics change; verify current rules with a qualified Canadian tax professional before making structural decisions.