WHAT IS A UNIFORM TAX REBATE? A lot of people don't realise that they can claim tax back for washing their works uniforms and miss out on rebates that are due to them. 1 in 3 people are due a uniform tax rebate. A uniform tax rebate is money from the HMRC which potentially could be yours. Don't you think it's time to claim your uniform tax rebate back? After all, you have been washing your uniform at home with no help from your employer. How much can I claim back for a uniform tax rebate? The amount you can claim back depends on your job, job role and how long you have been working. A uniform tax rebate can be claimed for 4 years. HMRC have a standard rate of £60, which you can claim tax back on. Usually 20% of this can be claimed back.