Taxes
Self-Employment Tax & CPP Budget
Budget estimated income tax using your chosen effective rate, plus 2026 self-employed CPP outside Quebec.
Enter net business income and an effective income-tax rate from your own tax estimate. This cash budget adds 2026 self-employed CPP and CPP2. It does not calculate income-tax brackets, credits or Quebec QPP.
Annual cash reserve estimate
$20318.50
- assumed Income Tax
- $13000.00
- cpp Contribution
- $7318.50
- monthly Reserve
- $1693.21
- remaining Business Income
- $44681.50
Formula and method
Reserve = net business income × assumed effective income-tax rate + CPP + CPP2.
2026 full-year CPP outside Quebec, assuming age 18–69 with no employment CPP contributions, elections, disability exclusions or proration. CPP is 11.9% on pensionable net income above $3,500 up to $74,600. CPP2 is 8% between $74,600 and $85,000. Income tax is an assumption supplied by you, not a bracket calculation.
Sources checked October 12, 2026
Worked examples
Independent business budget
- Annual business revenue ($):
- 80000
- Deductible business expenses ($):
- 15000
- Assumed effective income-tax rate (%):
- 20
Annual cash reserve estimate: $20318.50
Income above both CPP ceilings
- Annual business revenue ($):
- 100000
- Deductible business expenses ($):
- 0
- Assumed effective income-tax rate (%):
- 25
Annual cash reserve estimate: $34292.90
Assumptions and limits
- Income tax uses your entered effective rate; no credits or CPP deduction interaction modelled
- Full-year CPP eligibility outside Quebec
- No other employment CPP contributions
- No EI, instalment penalties, GST/HST or incorporation
This tool provides an educational estimate. Rules, rates and personal circumstances can change the answer. Review the assumptions before relying on a result. Report a correction.
Common mistakes to avoid
- Confusing a chosen effective rate with a marginal tax rate.
- Using this CPP model for Quebec QPP.
- Treating the reserve as a filed tax liability.
Frequently asked questions
Does this calculate my income tax?
No. You supply an effective rate from your own federal and provincial estimate. The tool adds a full-year CPP cash estimate.
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