Corporate tax accountant for Calgary corporations
Alberta corporations file twice — once federally, once provincially. EverStone prepares the T2 and the Alberta AT1 together for incorporated Calgary businesses, working remotely. See the Alberta tax reference or the wider Calgary small-business practice.
Quick answer: Alberta administers its own corporate income tax. So a Calgary corporation files a federal T2 with the CRA, and a separate Alberta AT1 with Alberta Tax and Revenue Administration. EverStone prepares both returns from one year-end file, remotely, for incorporated Alberta businesses. For a one-owner trades corporation, bookkeeping, payroll and the year-end T2 together usually run $500–$700 a month.
One-owner Calgary corporations: bookkeeping, payroll and the T2 from $500 to $700 a month. Filings: the T2, Schedule 1, Schedule 50, CCA, the small business deduction, T4 or T5 slips and instalments.
On this page
- Two corporate returns, not one
- What Alberta’s rates mean for the return
- No provincial sales tax, and what it removes
- Consulting corporations and personal services business risk
- Instalments run on two schedules
- Choosing a year end that suits the work
- How the engagement runs online
- Key T2 dates for a Calgary corporation
- Who this is for, and who it is not
- Calgary corporate tax questions
Two corporate returns, not one
Most provinces let the CRA collect their corporate tax on one T2. Alberta does not: a corporation with a permanent establishment there files the T2 with the CRA and the AT1 with Alberta Tax and Revenue Administration. Both use the same trial balance but are separate filings, with separate accounts and correspondence.
A Calgary owner who has only ever seen one confirmation number is usually missing the second filing rather than exempt from it. The gap tends to surface as provincial correspondence, long after the federal return was accepted. Preparing them together, from one closed year end, is the only arrangement that keeps the two sets of figures reconciled. A T2 corporate tax return Calgary corporations file with the CRA is only half the job; the Alberta AT1 is prepared alongside it from the same year-end file.
What Alberta’s rates mean for the return
Active business income eligible for the small business deduction is taxed at a combined 11% in Alberta — 9% federal plus 2% provincial — on a $500,000 business limit. Income above that limit, or income that does not qualify, is taxed at 23% combined: 15% federal plus Alberta’s 8% general rate, the lowest provincial general rate in Canada. Those combined rates are split between the federal T2 corporate tax Calgary corporations report to the CRA and the provincial share reported on the Alberta AT1.
Here the step from qualifying to non-qualifying income costs 12 points, against 16 in British Columbia and 18 in Manitoba. The business limit still matters, but the case for restructuring to protect it changes. Base decisions on retaining profit in a Calgary corporation on that spread, not on a rule of thumb from another province.
No provincial sales tax, and what it removes
Alberta has no provincial sales tax. A corporation selling only within the province charges 5% GST, holds one registration and files one set of returns. That simplifies the year end more than owners expect: no non-recoverable provincial tax in cost of goods sold, no second reconciliation and no second authority.
The exposure that replaces it is directional. A Calgary corporation that ships goods or delivers taxable services into British Columbia, Saskatchewan or Manitoba can acquire a registration obligation in a province it has never operated from. That question belongs in the year-end conversation, because it is normally discovered late.
Consulting corporations and personal services business risk
Calgary has many one-person corporations consulting to larger organizations in engineering, geoscience, project management, IT and energy services. If the CRA treats one as a personal services business, it loses the small business deduction, pays the general federal rate plus a surtax, and loses almost every ordinary deduction.
The test uses the same control, tools, subcontracting and risk factors that separate employees from contractors. One client, a desk in that client’s office and no independent business risk is the profile that draws attention. Review it before filing.
Instalments run on two schedules
Above the instalments threshold, a Calgary corporation pays two streams: to the CRA against the federal and blended balance, and to Alberta Tax and Revenue Administration against the provincial one. Interest accrues on each separately. Instalments follow prior-year figures, so a strong year keeps you paying at that level into a weaker one unless the estimate is revised. How corporate instalments work sets out the methods; the local point is that the provincial stream is easy to overlook.
Choosing a year end that suits the work
A fiscal year end is chosen once and changed only with permission, so match it to how the business earns. If a Calgary corporation earns most of its revenue in a turnaround or drilling season, a December year end puts the close in the busiest quarter. A quiet-month year end gives cleaner inventory and work-in-progress figures, time to decide bonuses before the deduction deadline, and a filing deadline clear of personal tax season. Choosing a fiscal year end works through the trade-offs.
How the engagement runs online
EverStone is a fully virtual, one-CPA firm, with no Calgary office, branch or local staff. Records arrive by secure upload, questions are handled by email or a short video call, and both returns are e-signed and transmitted electronically. The T2 and the AT1 follow the same rules wherever the preparer sits. What matters is that the CPA who reviews the year-end figures files them.
Year-end planning only works against a number you set earlier, which means the budget behind the planning rather than a guess in December.
Prepared and reviewed by a Chartered Professional Accountant at EverStone CPA, a CPA firm working with small businesses and incorporated contractors in BC, Alberta, Ontario and Manitoba. Updated . About the firm · Send an enquiry
Key T2 dates for a Calgary corporation
| Obligation | When it is due |
|---|---|
| Balance owing | 3 months after fiscal year-end, for a CCPC claiming the small-business deduction |
| T2 return filing | 6 months after fiscal year-end |
| Instalments | Monthly or quarterly, where your corporation is required to pay them |
| Sales tax where you operate | 5% GST only. Alberta levies no provincial sales tax |
Source: All CRA deadlines. General information, not advice.
In Calgary, EverStone also works with energy services firms and farms.
Who this is for, and who it is not
This fits an Alberta corporation that wants a fixed fee, a CPA who answers, and a year end that does not arrive as a surprise. It does not fit a company that needs someone on site: the engagement runs by video, secure upload and e-signature, and the fee is the same wherever you are.
What happens when you get in touch
An Alberta corporation is onboarded the same way as one next door, and on the same fixed fee.
- A free thirty-minute conversation. What you do, what is filed and what is overdue. You leave with a fixed fee in writing and no obligation to take it.
- Access, in the first week. We are authorized with the CRA, so notices and balances get looked up rather than requested from you. If you are switching firms, your file is requested the same week.
- Current, then ahead. Books set up or brought current, anything overdue scheduled oldest year first, and the next twelve months of deadlines set before they arrive.
Send an enquiry, or ask one question first — both go to a CPA, not a queue.
Calgary corporate tax questions
Does an Alberta corporation really file two returns?+
What is the corporate tax rate in Calgary?+
Do you have a Calgary office?+
Do I charge PST on sales from my Calgary business?+
Can a CPA in another province file my Alberta returns?+
My corporation has one main client. Is that a problem?+
Do you work with businesses outside Calgary itself?+
Related services and local guides
Nearby cities, the rest of what we do for Calgary businesses, and the reference pages behind this one.
Starting fees
Every fee is fixed in writing before any work begins.
- Corporate year-end and T2 returnfixed fee, quoted in writingThis page
- Monthly bookkeeping, GST filing includedfrom $325 a month
- Payroll, remittances, T4s and ROEsincluded in monthly bookkeeping
- Books, payroll and the year-end T2 together$500–$700 a month
- Personal tax return (T1)from $125; self-employed or rental $275–$500
- Catch-up bookkeepingfrom $2,200 per year of records
- Controller or CFO supportcontroller from $1,650, CFO from $2,750 a month
- One-off advice call with a CPA$225 plus GST