When does the British tax year start? When does it end?
The British Tax year is always from the 6th of April to the 5th of April - unlike what we are used to in most countries - from 1st of January to the 31st of December.
This makes it a bit tricky when trying to calculate your taxes. Here is how it breaks down for the following years:
The earning document P60 always shows the ending date, for example, "Tax year to 5 April 2018". It means it is about the tax year of 2017/2018 and you need to use the NeoTax calculator of 2017.
The P45 always has a "Leaving date" field. For example, 12.03.2019. In this case, the tax year would be 2018.04.06 - 2019.04.05 using the NeoTax calculator of 2018.
Check how much you can refund from the U.K. in free online calculator on www.neotax.eu.