The Canada Revenue Agency reminded taxpayers that having all tax slips is an important step before filing a return.
CRA said employers, financial institutions, trusts, and other issuers send slips to taxpayers and provide copies to CRA. The agency does not issue those slips itself and cannot post them to CRA accounts until it receives them from the issuer.
Common slips have different timing. T4 slips for employment income, T4A slips for pension and other income, and T5 slips for investment income are usually sent by the end of February. T3 slips for trust income are usually sent by the end of March.
CRA said taxpayers who have not received a slip by the expected deadline should contact the issuer, not CRA.
The reminder is meant to prevent avoidable errors. Filing before slips are available can lead to missed income, reassessments, delays, and the need to request a change after receiving a notice of assessment.