DCHP-2

T4 T-4, T-4 slip, T4 slip DCHP-2 (November 2016)

• n. & adj. — also often in compounds, Administration

  an annual statement of employment income for tax purposes (see Image 1).

  Type: 1. Origin — Until the early 1970s, T4 was almost invariably spelled T-4. In the mid-1970s the hyphen was dropped to yield "T4" (see the 1978 quotation), which is today's standard form. T4 slips are needed to report one's income from regular employment on the Canadian tax return, which is generally due by 30 April of the following year. Other kinds of income are reported on other forms, such as T4As for grants or T4Es for employment insurance income including parental leave (see, e.g. the 2008 quotation). T3 or T5 slips (see the 2007 quotation) relate to investment income. Chart 1 shows the term's prevalence in Canada.
  See also COD-2, s.v. "T4", which is marked "Cdn."

  • Until the 1970s, the spelling with the hypthen, T-4, was the standard form (see quotations).