Government employees across Canada are increasingly running side businesses — consulting, coaching, tutoring, e-commerce, ABA therapy, accounting, and dozens of other pursuits. The tax rules are clear. The conflict of interest rules are what trip people up. Here's how to navigate both.
Can Government Employees Run a Side Business?
Generally, yes — with conditions. The key rules vary by employer:
Public servants must disclose and obtain approval for outside activities that might create a real or apparent conflict of interest with their official duties. The bar is whether your side business could be seen to benefit from your position or interfere with your government duties.
The Public Service of Ontario Act requires disclosure of private interests that conflict with official duties. Employees submit a Confidential Disclosure Statement. Approval is not automatic — it depends on your role and the nature of the business.
Rules vary significantly. Some collective agreements prohibit secondary employment entirely; others require only disclosure. Read your specific CBA or employment agreement.
Bottom line before starting
Read your code of conduct, disclose to HR, and get written approval where required. Failing to disclose can be grounds for disciplinary action regardless of how small the business is.
How Is Side Business Income Taxed?
Self-employment income from a side business is taxed just like any other income — it gets added to your T4 employment income and taxed at your marginal rate. There is no separate “side hustle” tax rate.
For most government employees with good salaries, this means your side business income is taxed starting at your marginal rate — often 33–43% in Ontario for income between $100K–$150K, or up to 53.5% above $220K.
You report self-employment income on T2125 (Statement of Business or Professional Activities), which is attached to your T1 personal return.
Key Deductions for Government Employee Side Businesses
- Home office expenses
If you work from home — proportional heat, hydro, internet, rent/mortgage interest.
- Vehicle expenses
If you use your car for business (track your km!) — gas, insurance, repairs, depreciation.
- Equipment and supplies
Computers, software, office supplies used for the business.
- Professional development
Courses, certifications, and training directly related to your business.
- Professional fees
Accounting, legal, and consulting fees for the business.
- Advertising and marketing
Website, ads, business cards, domain names.
- HST/GST collected
If your gross revenue exceeds $30,000, you must register for HST and remit to CRA.
Should a Government Employee Incorporate?
The same math applies as for any business owner: incorporation makes sense when you can retain income inside the corporation that you don't need personally. For a government employee, this is an interesting situation:
Good candidate for incorporation if:
- • Side business earns $80K+ per year
- • You don't need the side income to cover living expenses (government salary handles that)
- • You want to build a separate investment/retirement vehicle
- • Business has liability exposure
May not be worth incorporating if:
- • Side business earns under $50K and you need it all
- • Your conflict of interest rules specifically prohibit directorship of a private corporation
- • The compliance cost ($2K+ per year in T2 + bookkeeping) isn't justified by income
Important check: Some government conflict of interest regimes specifically address being a director or officer of a private corporation. Verify with your employer before incorporating — you may need approval to be a director even if the business itself is approved.
HST Registration — Don't Forget This
Once your side business gross revenue exceeds $30,000 in any rolling 12-month period, you must register for HST, charge it on your services, and remit to CRA. This applies even if you're also a T4 employee. Missing this is one of the most common compliance errors we see. The good news: you can claim Input Tax Credits on HST you pay for business expenses.
We Understand the Government Employee Situation
We have direct experience with the specific tax and compliance requirements for government employees running side businesses — including T2125, HST registration, and incorporation decisions.