spb/ultra-sharp-agent-skills Public

1<!--2Author: Simon-Pierre Boucher3Contact: contact@spboucher.ai4-->56# Reference — Filing Canadian Business Taxes78## Contents9- Deadline master table (tax year 2026)10- Sales tax by province11- GST/HST worked example12- Payroll remittance table13- Corporate tax rate sketch14- Penalty table15- Gotchas1617## Deadline master table (tax year 2026 — verify at canada.ca)1819| Filing | Who | Due |20|---|---|---|21| T1 + T2125 | Self-employed individuals | File June 15; **pay April 30** |22| T2 | Corporations | File 6 months after year-end; **pay 2 months** (3 for eligible CCPCs) |23| GST/HST return | Registrants | Annual: 3 months after year-end (self-employed: June 15/pay Apr 30); quarterly/monthly: 1 month after period |24| T4 slips + summary | Employers | Last day of February |25| T5 slips + summary | Corporations paying dividends | Last day of February |26| Payroll remittance | New/small employers | 15th of the month following payday |27| T1 instalments | Individuals owing >$3,000 | Mar 15 / Jun 15 / Sep 15 / Dec 15 |28| RRSP deduction cutoff | Individuals | ~60 days into the new year (Mar 2, 2026 for 2025) |2930## Sales tax by province (2026 — verify)3132| Province | Regime | Rate |33|---|---|---|34| ON | HST | 13% |35| NB, NS, NL, PE | HST | 15% |36| AB, NT, NU, YT | GST only | 5% |37| BC | GST + PST | 5% + 7% |38| SK | GST + PST | 5% + 6% |39| MB | GST + RST | 5% + 7% |40| QC | GST + QST | 5% + 9.975% (file with Revenu Québec) |4142## GST/HST worked example (Ontario, quarterly filer)4344- Sales in quarter: $50,000 + 13% HST collected = $6,50045- Purchases: $12,000 + $1,560 HST paid (ITCs)46- **Net remittance = $6,500 − $1,560 = $4,940**, due one month after quarter-end.4748Books: HST collected accumulates in `Sales Tax Payable`; ITCs in `GST/HST Recoverable`; the remittance clears both.4950## Payroll remittance per pay run (2026 figures — verify)5152| Item | Employee | Employer |53|---|---|---|54| Income tax | withheld per TD1 tables | — |55| CPP | withheld up to annual max | matched 1.0× |56| EI | withheld up to annual max | 1.4× employee premium |5758Remit all of the above together by the 15th of the following month (accelerated schedules for larger remitters).5960## Corporate tax rate sketch (2026 — verify exact provincial rates)6162| Income | Federal | Combined typical |63|---|---|---|64| Active income ≤ $500k (CCPC, SBD) | 9% | ~11–12% with province |65| Active income > $500k | 15% | ~25–31% |66| Passive investment income | ~38.7% refundable regime | refunds on dividend payout (RDTOH) |6768## Penalty table (verify at canada.ca)6970| Failure | Penalty |71|---|---|72| Late T1/T2 filing | 5% of balance + 1%/month (max 12); doubles for repeat offenders |73| Late GST/HST | 1% of amount owing + 0.25%/month (max 12) |74| Late slips (T4/T5) | Per-slip penalty scaled by count and days late |75| Missed payroll remittance | 3–10% of the amount, escalating |7677## Gotchas78- **Payment before filing:** corporate balances are due months before the T2 itself; treating the filing date as the payment date accrues interest silently.79- **The $30,000 GST/HST threshold is rolling** (four consecutive quarters), not calendar-year — check every quarter.80- **Place-of-supply rules:** an Alberta business selling to Ontario customers generally charges 13% HST, not 5%.81- **Director liability:** unremitted payroll and GST/HST amounts are personal liabilities of directors — prioritize trust amounts over all other debts.82- **GIFI codes:** the T2 requires financial statements mapped to GIFI; keep the chart of accounts mappable.83