When you work for an employer on PAYE (Pay As You Earn) basis it is very important to understand your income Tax deductions and Tax Codes. You can overpay Tax for the following reasons: working for a few employers at the same time, not working for the whole Tax Year, not submitting P45 form from your previous employer to your new employer.
To find out if you have overpaid Tax for the Tax Year (Tax Year starts on 6th April and ends on 5th April) you will need the following documents:
- P45 form for every employer you left during the Tax Year
- P60 form for every employer you worked when the Tax Year ended on 5th April
All Tax Refunds can be claimed only after the end of the Tax Year, which is after 5th April.
You can claim Tax Refund for up to the last 5 Tax Years.
You can claim Tax Refund for the running Tax Year and not wait until the end of the Tax Year only if you are leaving UK and not planning to work in UK or receive any income from UK until the end of the Tax Year. You can claim all paid tax amount if your total earned income until leaving date is less than tax free allowance amount for that Tax Year.