# Reference — Filing Canadian Business Taxes ## Contents - Deadline master table (tax year 2026) - Sales tax by province - GST/HST worked example - Payroll remittance table - Corporate tax rate sketch - Penalty table - Gotchas ## Deadline master table (tax year 2026 — verify at canada.ca) | Filing | Who | Due | |---|---|---| | T1 + T2125 | Self-employed individuals | File June 15; **pay April 30** | | T2 | Corporations | File 6 months after year-end; **pay 2 months** (3 for eligible CCPCs) | | GST/HST return | Registrants | Annual: 3 months after year-end (self-employed: June 15/pay Apr 30); quarterly/monthly: 1 month after period | | T4 slips + summary | Employers | Last day of February | | T5 slips + summary | Corporations paying dividends | Last day of February | | Payroll remittance | New/small employers | 15th of the month following payday | | T1 instalments | Individuals owing >$3,000 | Mar 15 / Jun 15 / Sep 15 / Dec 15 | | RRSP deduction cutoff | Individuals | ~60 days into the new year (Mar 2, 2026 for 2025) | ## Sales tax by province (2026 — verify) | Province | Regime | Rate | |---|---|---| | ON | HST | 13% | | NB, NS, NL, PE | HST | 15% | | AB, NT, NU, YT | GST only | 5% | | BC | GST + PST | 5% + 7% | | SK | GST + PST | 5% + 6% | | MB | GST + RST | 5% + 7% | | QC | GST + QST | 5% + 9.975% (file with Revenu Québec) | ## GST/HST worked example (Ontario, quarterly filer) - Sales in quarter: $50,000 + 13% HST collected = $6,500 - Purchases: $12,000 + $1,560 HST paid (ITCs) - **Net remittance = $6,500 − $1,560 = $4,940**, due one month after quarter-end. Books: HST collected accumulates in `Sales Tax Payable`; ITCs in `GST/HST Recoverable`; the remittance clears both. ## Payroll remittance per pay run (2026 figures — verify) | Item | Employee | Employer | |---|---|---| | Income tax | withheld per TD1 tables | — | | CPP | withheld up to annual max | matched 1.0× | | EI | withheld up to annual max | 1.4× employee premium | Remit all of the above together by the 15th of the following month (accelerated schedules for larger remitters). ## Corporate tax rate sketch (2026 — verify exact provincial rates) | Income | Federal | Combined typical | |---|---|---| | Active income ≤ $500k (CCPC, SBD) | 9% | ~11–12% with province | | Active income > $500k | 15% | ~25–31% | | Passive investment income | ~38.7% refundable regime | refunds on dividend payout (RDTOH) | ## Penalty table (verify at canada.ca) | Failure | Penalty | |---|---| | Late T1/T2 filing | 5% of balance + 1%/month (max 12); doubles for repeat offenders | | Late GST/HST | 1% of amount owing + 0.25%/month (max 12) | | Late slips (T4/T5) | Per-slip penalty scaled by count and days late | | Missed payroll remittance | 3–10% of the amount, escalating | ## Gotchas - **Payment before filing:** corporate balances are due months before the T2 itself; treating the filing date as the payment date accrues interest silently. - **The $30,000 GST/HST threshold is rolling** (four consecutive quarters), not calendar-year — check every quarter. - **Place-of-supply rules:** an Alberta business selling to Ontario customers generally charges 13% HST, not 5%. - **Director liability:** unremitted payroll and GST/HST amounts are personal liabilities of directors — prioritize trust amounts over all other debts. - **GIFI codes:** the T2 requires financial statements mapped to GIFI; keep the chart of accounts mappable.