Katherine Hocking wrote:
Hi, At that time the new year began in April, which is why our Tax
According to the HMRC website:
The reason for the tax year running from 6 April to 5 April is primarily
historical and has its origin in the switch from the Julian to the
Gregorian calendar in 1752.
It had been calculated in the 16th Century that the Julian calendar had
lost 9 days since its introduction in 46 BC. Most of Europe changed to
the new, more accurate, Gregorian calendar in 1582, but this country
continued with the old one until September 1752 by which time the error
had increased to 11 days.
These 11 days were 'caught up' by being removed from the calendar
altogether - 2 September was followed by 14 September. In order not to
lose 11 days' tax revenue in that tax year, though, the authorities
decided to tack the missing days on at the end, which meant moving the
beginning of the tax year from the 25 March, Lady Day, (which since the
Middle Ages has been regarded as the beginning of the legal year) to 6
The dates were adopted for income tax on its re-imposition in 1842 and
have not changed since.