Corporate tax in Canada is not just “a T2 once a year.” Filing quality depends on the integrity of your books, the correctness of classifications, and your ability to support positions with documentation under CRA review. The CRA confirms corporations must file their return within six months after fiscal year-end, while payment (balance-due day) is generally due sooner—often two months after year-end, with specific rules and exceptions. Corporate taxes also interact with provincial administration: CRA administers provincial/territorial corporate tax except Quebec and Alberta, which require special attention. BOMCAS Canada’s Corporate Tax Canada service focuses on accurate compliance, practical planning, and audit-ready files.
Corporate Tax Canada
Who this service is for
This service is designed for incorporated businesses across Canada, including Canadian-controlled private corporations (CCPCs), professional corporations, holding companies, early-stage startups, and operating companies with multi-province activity. It also supports corporations that were inactive during the year but still have filing obligations, and corporations dealing with CRA correspondence, reassessments, or audit activity.
If you operate in Quebec or Alberta, corporate tax administration differs. CRA guidance explains the CRA administers provincial/territorial corporate tax except for Quebec and Alberta. In Alberta, provincial corporate income tax rules (including filing requirements for an Alberta Corporate Income Tax Return, AT1) are described in Alberta’s corporate tax circulars. In Quebec, corporations with an establishment in Québec may have to file a provincial corporate return (CO-17) with Revenu Québec.
What corporate tax compliance looks like in Canada
At minimum, corporate tax compliance includes:
- T2 return preparation and filing (the core corporate income tax return).
- Schedules and supporting statements (including the General Index of Financial Information, “GIFI,” and other schedules depending on activity).
- Payment and installment planning to manage cash flow and avoid interest.
- Provincial alignment (especially if operating in Alberta or Quebec).
The CRA explains that the tax year of a corporation is its fiscal period and that the corporation must file the return within six months of the end of each tax year. But “file within six months” does not mean “pay within six months.” The CRA’s balance-due guidance states the balance-due day is when you must pay the remainder of tax owed and notes it is generally due two months after year-end (with further rules).
Benefits to your business
A strong corporate tax engagement should create value beyond the submission:
Reduced risk of costly errors. Corporate returns are dense. Misclassified expenses, missing schedules, and inconsistent reporting can trigger CRA questions and drain leadership attention.
Audit-ready organization. The CRA’s business audit description emphasizes examination of books and records to support filed amounts. “Audit-ready” means the file contains clean working papers, reconciliations, and clear explanations for material positions.
Cash flow control. Many corporations must plan for installments and balance-due payments. CRA provides detailed guidance on installment concepts and due dates. Proper planning prevents “surprise” payment stress shortly after year-end.
Better decision-making for owner-managers. Corporate tax is a reflection of business decisions: compensation mix, revenue timing, asset purchases, and documentation. A corporate tax service that includes planning touchpoints helps you make those decisions earlier—when they still matter.
Detailed service offerings
T2 return preparation and filing (with schedules). We prepare the T2 and required schedules based on your financial statements and bookkeeping records, and we reconcile key lines to your year-end package.
Electronic filing compliance. The CRA describes its Corporation Internet Filing service and notes you can file using a Web Access Code or EFILE credentials. CRA’s T2 guidance for “Completing your corporation income tax (T2) return” states that for tax years starting after 2023, corporations generally must file the T2 electronically, with listed exceptions (for example, insurance corporations, non-resident corporations, and certain functional currency reporters). We align submission method to the CRA rules applicable to your corporation.
Corporation installment planning support. CRA publishes a Corporation Instalment Guide and installment due date rules. We help you understand your required cadence (monthly/quarterly as applicable), set reminders, and avoid interest charges caused by underpayment or late remittance.
Year-end tax readiness package. If your books are not ready, we can scope a “year-end readiness” step: review account coding, ensure receipts exist for major deductions, and reconcile payroll/GST/HST linkages to reduce later friction.
Provincial administration coordination (Alberta and Quebec).
Because CRA does not administer Alberta corporate tax and Quebec corporate tax, your plan must include the province’s requirements when you have a permanent establishment (or other filing triggers) there. We coordinate these additional obligations so there are no unpleasant surprises.
CRA correspondence and audit support readiness. If the CRA audits a business, it examines books and records to support filed amounts. We help you keep the corporate tax file ready for review: indexed records, working paper trail, and clear explanations of tax positions.
The BOMCAS corporate tax process
Step one: Scoping and risk mapping. We identify complexity points: multiple provinces, shareholder transactions, asset purchases, related-party balances, and prior-year carryovers.
Step two: Books-to-tax alignment. We confirm the bookkeeping basis, reconcile income and expense accounts, and validate supporting records for major deductions.
Step three: Draft T2 and schedule build. We prepare the T2, GIFI, and relevant schedules.
Step four: Review meeting and action items. You see the key outputs: taxable income drivers, expected tax payable/refund, installments, and “next year improvements.”
Step five: Electronic filing and retention. We file electronically per CRA rules and deliver a retention and audit-readiness package.
Engagement options and pricing
Common corporate tax engagement options include:
- T2 Compliance Only: preparation and e-filing of T2 with core schedules; basic tax summary.
- T2 + Advisory: includes a planning review and actionable recommendations (installments, owner-manager compensation considerations, year-end checklist).
- Full Compliance Bundle: corporate tax + GST/HST filings + payroll reconciliation for a single year-end compliance package.
Pricing varies—contact for quote. (Exact pricing is unspecified.)
Compliance and legal considerations
Key compliance topics (high-level) include:
- Filing deadline: CRA confirms T2 must be filed within six months after year-end.
- Payment deadline: CRA explains balance-due day and that corporate taxes are generally due two months after year-end, with eligibility rules that may apply to CCPCs (for example, certain firms may have a three-month balance-due day under specific criteria).
- Provincial administration: CRA administers provincial corporate tax except Quebec and Alberta. Alberta requires an AT1 return for corporations with a permanent establishment in Alberta, subject to exemptions described in Alberta’s guidance. Quebec corporate return requirements are described in Revenu Québec’s CO-17 guidance.
- Electronic filing expectations: CRA indicates broad electronic filing requirements for tax years starting after 2023 (with exceptions).
This page provides general information; your corporation’s requirements depend on facts (residency, permanent establishment, taxable income, and activity). The governing law is the Income Tax Act and applicable provincial statutes.
Client scenarios
Scenario A: Owner-managed CCPC with messy books.
An Edmonton-area contractor has a strong year but inconsistent expense coding and missing receipts. We implement a “books-to-tax cleanup,” then prepare the T2 with reconciliations and a retention package aligned to CRA audit expectations (books and records must support filed amounts).
Scenario B: Corporation with Alberta provincial obligations.
A corporation has a permanent establishment in Alberta and needs proper provincial filing coordination. Alberta’s own corporate guidance confirms AT1 filing requirements in many cases. We coordinate the Alberta layer and ensure the corporate tax plan accounts for both federal and provincial administration.
Scenario C: Multi-province expansions and cash flow issues.
A growing services firm expands across provinces, triggering new compliance needs and higher installments. CRA provides explicit installment guidance; we build installment reminders, estimate payment ranges, and reduce mid-year surprises.
FAQs
When is my T2 due?
The CRA states corporations must file their return within six months after the end of each fiscal year (tax year).
When do I have to pay corporate tax?
CRA explains balance-due day—generally two months after year-end, with specific criteria that may change timing for eligible corporations.
Do I have to file electronically?
CRA indicates that for tax years starting after 2023, corporations generally must file the T2 electronically, subject to listed exceptions.
Does BOMCAS handle Alberta or Quebec complications?
Yes—we coordinate. CRA notes Alberta and Quebec are exceptions to CRA’s administration of provincial corporate income tax. Alberta’s corporate guidance describes AT1 filing requirements in many cases. Quebec’s provincial corporate return requirements are addressed through Revenu Québec’s CO-17 guidance.
What’s the single biggest cause of corporate tax delays?
In practice: incomplete books and missing supporting documents. CRA’s audit model focuses on whether books/records support what was filed.
Trust signals
BOMCAS describes itself as a full-service accounting firm supporting bookkeeping, personal tax, corporate taxes, and GST filings across Canada, with a base in Alberta. Corporate tax work is delivered through a structured process aligned to CRA filing and payment timelines. Individual preparer credentials are unspecified in the sources cited here; request BOMCAS’s team qualifications for your engagement.
If you want your corporate tax return filed correctly, on time, and supported by clean documentation, contact BOMCAS Canada.
PHONE: 780-667-5250; FAX: 780-851-2520; EMAIL: info@bomcas.ca; https://bomcas.ca.
