MPC vs Sole Proprietor for Ukrainian physicians in Canada: when to incorporate

TL;DR: A Ukrainian family physician with $300K gross practice income and no MPC pays $110-130K in tax as a sole proprietor. With an MPC and the right salary/dividend split — $70-85K. The $40-50K/year difference = $1M+ over a career. Incorporate in practice year 2-3 (after MCCQE2 + provincial College registration). Salary to CPP-max ($73,200 in 2026) + dividends for residual. IPP at 40+ with $200K+ accumulated. Holdco for asset protection past $1M+ corporate assets.

MPC: what it is and why it's different

MPC = Medical Professional Corporation. A specialized CCPC (Canadian-Controlled Private Corporation) permitted for licensed physicians in most provinces (AB, BC, ON, SK, MB, NS, NB).

What an MPC gives you vs sole proprietor:

1. Small Business Deduction (SBD) — federal corporate tax 9% on first $500K of active business income (vs ~38% for regular corp). Plus provincial — Alberta adds 2%, total ~11% effective.
2. Tax deferral — money remaining in MPC after corporate tax isn't taxed personally until you pay it out as salary or dividend.
3. Income splitting (limited) — your spouse can be a shareholder in AB/BC (harder in Ontario via TOSI).
4. IPP eligibility — Individual Pension Plan only via a corporation. Significantly higher contributions than RRSP after 40.
5. Asset protection — personal creditors generally can't reach assets inside MPC.

⚠️ EMD compliance disclaimer: Educational material, not tax/legal/medical-practice-management advice. For individual decisions — discovery call with Licensed DR (NRD #4575551) + medical-CPA-specialist + provincial College review.

Sole Proprietor: what you're paying now

Given family physician, year 2 practice, Calgary:

• Gross practice income: $300K (FFS + capitation mix)
• Practice expenses: $50K
• Net practice income: $250K

As sole proprietor — this is personal income. Tax in Alberta on $250K ≈ $85K. Plus CPP self-employed ~$7,500.

Total tax + CPP: ~$92K. After-tax income: ~$158K.

MPC structure: salary + dividend split

With MPC you can:

1. Pay yourself salary ($XX) — deductible expense for MPC, taxed at personal rates + CPP.
2. Residual stays in MPC — corporate tax (SBD ~11%).
3. Dividends — periodic distributions from after-tax corporate income.

Classic salary + dividend split

Same $250K net practice income (now flowing through MPC):

Salary to CPP-max: $73,200 (2026 CPP YMPE).

• Personal tax (Alberta) on $73,200: ~$18,000
• CPP: $7,500
• RRSP room generation: 18% × $73,200 = $13,176 for next year

MPC after salary: $250K - $73.2K = $176.8K. Corporate tax on $176.8K (under $500K SBD): $176.8K × 11% = $19,448.

Residual in MPC: $157,352.

Real benefit: tax deferral

The real impact comes when you don't pay out the full dividend. If you live on $130K/year ($73K salary + $50K dividend) and leave $107K in MPC:

Tax now: $18K (salary) + $7.5K (CPP) + $19.4K (corp) + $14.5K (on $50K dividend) = $59,400.

Plus MPC builds up $107K/year — that's capital for retirement, IPP, exempt market.

Over 20 years at $107K accumulation × 6% growth = MPC accumulated wealth ≈ $4M.

When to incorporate: timeline

Year 1 practice (just finished residency): DON'T incorporate.

• Income $150-250K, but also student loans, setting up practice, expenses high.

Year 2-3 practice (stabilized practice, $250K+ gross): YES incorporate.

• Income stable, payback on incorporation = 6-12 months.

Year 4+ (well-established, $400K+ gross): Add holdco.

• MPC pays dividend up to holdco (tax-free between connected corps §112(1)).
• Holdco can invest in non-medical investments (MPC is typically restricted to medical-related investments).
• Holdco gives asset protection layer.

Salary vs Dividend: optimal split

Pay salary to CPP-max ($73,200 in 2026)

Why:

• Salary earnings generate RRSP room (18% × salary)
• Salary earnings build CPP credits
• Salary earnings enable paid maternity leave eligibility
• Salary earnings enable disability income protection

Dividend for residual

Why:

• Lower combined tax rate than salary at high income
• No CPP on dividends
• Flexible timing (can skip dividend in a low-income year)

Spouse as shareholder (AB/BC)

If your spouse is non-physician, in Alberta/BC they can hold non-voting common shares of MPC and receive dividends. TOSI rules limit this.

Ontario nuance

Ontario doesn't allow non-physicians as MPC shareholders.

IPP: when to add

IPP = Individual Pension Plan. A defined-benefit pension for a one-person CCPC.

Why IPP > RRSP after 40:

• RRSP limit $33,810 (2026) flat.
• IPP limit calculated by age: $40-70K/yr for 40+, $80-120K/yr for 55+.
• Plus catch-up for past years of service in MPC.

Cost: setup $3-5K legal, $1-2K admin/year.

Strategy timeline:

• Years 1-3 MPC: build up cash in MPC, contribute regular RRSP personally.
• Years 4-5 (age 38-42): consider IPP setup.
• Year 6+: max IPP contributions every year.

Holdco for asset protection

YOU (special vote shares MPC)
  ↓
MPC (medical practice income)
  ↓ tax-free dividend §112(1)
HOLDCO (non-medical investments)
  ↓
exempt market, real estate, stocks

Cost: $5K legal setup. Annual $2-3K accounting.

When: After $1M+ accumulated in MPC, or earlier if asset protection critical.

Pitfalls that cost tens of thousands

1. Incorporate too early

If practice income < $200K — incorporation cost > tax benefit.

2. Mixing personal and corporate finances

The worst mistake — pay personal expenses from MPC bank account. CRA reassessment + interest + penalties.

3. Forget GST/HST registration

If MPC bills > $30K/year for non-insured services — must register GST.

4. Wrong shareholder structure

Setting up MPC without understanding voting/non-voting + spouse considerations = expensive fix later.

5. Not using IPP after 40

RRSP $33K vs IPP $60-80K = $30-50K extra tax-sheltered annually. Massive missed opportunity.

Real timeline: 10 years with MPC

Year 1 (resident matched, finishing program): Sole proprietor. No incorporation.

Year 2-3 (independent practice, $250-300K gross): Incorporate MPC. Salary $73K + dividend $40-60K. Build cash in MPC.

Year 4-5 (established, $350-400K gross): Consider Holdco.

Year 6 (age ~38, $400K+ gross): Setup IPP.

Years 7-10 (age 38-45): Max IPP, build MPC + Holdco wealth $1-2M+. Eligible Investor — engage exempt market via Holdco.

Year 10+ (age 45+, MPC + Holdco $2-3M+): Estate planning structure (family trust).

Eligible Investor via MPC

At $300K+ practice income + ~$1M+ MPC accumulated = you're Eligible Investor (NI 45-106 §1.1(b)).

60-second self-check — Eligible Investor self-check.

Conclusion

MPC isn't "optimization for the very wealthy", it's the standard tool for Canadian physicians starting at $250K+ gross income. The differential vs sole proprietor can be $40-50K/year = $1M+ over a career.

Key decisions:

1. When to incorporate — practice year 2-3.
2. Salary vs dividend — salary to CPP-max ($73,200 in 2026), dividend for residual.
3. Spouse — non-voting shareholder in AB/BC.
4. IPP — after 40.
5. Holdco — after $1M+ MPC.

Full physician pillar — Financial planning for physicians in Canada.

Discovery call — Book.