April - the end of the tax year and all the usual stuff you should do before then like take out an ISA if you have not already done so, use your CGT allowance etc.
But why does the tax year end on the 5th April? Apparently until 1752 Britain used the Julian calendar, established by the Romans. At that time this was 11 days adrift of the more accurate Gregorian calendar which was used in Europe.
So an early example of our policies being influenced by Europe as according to the old calendar, New Year's day and hence the start of the tax year was 25th March. So starting in 1752 the tax year was extended to 365 days plus the lost 11 days, giving the 4th April 1753 as the end of the tax year. An extra day was then added in 1800 in what would have been a leap year to give us the 5th April date that we still use today. It's a wonder that no chancellor with all their tinkering has thought to move it to 31st December.
Talking of Chancellors tinkering, on a more serious note if you have done some serious pension savings or have just been a member of decent final salary scheme with a reasonable salary then you need to watch out for the Lifetime Allowance changes coming in at the end of this tax year.
If you think this might apply to you then check out this article and your own situation. But as the article says if you think you might be hit by this you should take professional advice before taking any action. There is another article about it here and one that shows that MP's are of course exempt as are I believe Judges for some reason. All this at the same time they are trying to encourage people to save for a Pension with auto enrolment, bonkers.
Lets hope they don't do something equally stupid with a lifetime cap on ISA's which has apparently been rumoured. They then wonder why people don't bother to save.
Still I'm not sure they want people to save as if they did the economy would tank again. I guess that's why they are encouraging spend spend spend with pre election bribes like help to buy to get the housing market and borrowing going again. I guess having nationalised banks which they have forced to make massive PPI payouts has also helped the economy - well travel agents and car dealers any way - plus ça change....
There's also a blog about it here and an article in Money Week magazine which is also worth subscribing to IMO.