His Majesty’s Revenue and Customs (HMRC) utilises a tax calendar to organize payroll dates into defined tax weeks and months. This calendar remains consistent from year to year. The designation of tax weeks/months is determined by the actual pay date for each period.
1. Tax Week 1 begins on April 6th and ends on April 12th. Subsequent weeks follow sequentially from this start date.
2. Tax Fortnight 1 starts on April 6th and concludes on April 19th. Subsequent fortnights continue consecutively from this initial period.
3. Tax Four Week 1 starts on April 6th and extends to May 3rd. Successive four-week periods commence from this starting point.
4. Tax Months consistently commence on the 6th of the month and conclude on the 5th of the following month (e.g., Tax Month 1 spans April 6th to May 5th).