An employment contract in Canada is only partly what the parties write: employment standards legislation reads mandatory minimums into every contract, voids clauses that try to undercut them, and in federal workplaces requires a written employment statement with prescribed contents on a deadline. The practical question is rarely “do we have a contract” (working plus paying already creates one) but “does the written contract actually do what the employer thinks it does”.
What each jurisdiction requires in writing
| Federal (Canada Labour Code) | Ontario (ESA, 2000) | Alberta (Employment Standards Code) | |
|---|---|---|---|
| Written document required | Written employment statement with prescribed contents, on a 30-day deadline | No general written-contract requirement, but specific documents and postings are | No general written-contract requirement, but specific agreements must be written |
| Sharpest clause rule | Statement must be updated within 30 days of changes | Most non-competes signed on or after October 25, 2021 are void | Averaging arrangements and certain deductions need written form |
| Floor that can’t be contracted out | Code minimums | ESA minimums | Code minimums |
Start with these answers
- The chooser: which employment contract rules apply, federal, Ontario or Alberta.
- By jurisdiction: what has to be in an employment contract for federally regulated employees, in Ontario, and in Alberta.
- The boundary cases: employee vs independent contractor and what belongs in an independent contractor agreement.
- When it ends: the termination clause is the part of the contract most likely to be litigated; see termination notice requirements and severance entitlements.
Clauses that fail most often
- Termination clauses that try to cap notice below the statutory minimum. They are void, and a void clause usually revives the larger common-law entitlement.
- Non-competes in Ontario. Signed on or after October 25, 2021, most are void by statute; non-solicitation clauses are the narrower tool that survives more often.
- Contractor labels on employee relationships. The contract’s title does not control; the actual working relationship does, and misclassification carries CRA and standards exposure.
- Stale templates. Federal statement requirements and Ontario’s non-compete ban both arrived recently enough that older templates silently fail them.
Official starting points
- Canada Labour Code, s. 253.2 (employment statement)
- Ontario: guide to the Employment Standards Act
- Alberta: employment standards rules
Guide last updated August 8, 2026.