I drive around as part of my job. Sometimes I need to stay overnight.
Each month, I submit my petrol and accommodation expenses. I get these reimbursed along with my wage the following month.
Although this 'extra money' shows up on my pay slip as mileage or other expenses, the money is then combined with my standard monthly wage. I then pay tax and NI on the whole amount instead of just my wages.
So, let me get this right, i pay for the petrol/hotel costs out of last month's wages (which I've already paid tax on), get this reimbursed the next month only to pay tax and NI on it all over again!
Initially, I was under the impression that I could file a self assessment at the end of the year and claim tax relief on this, however, I looked into it last night on HMRC and I can't claim it back because my employer has already reimbursed me for these costs??
I get on average an extra £250 a month (expenses), not enough to move me up a tax band however it does increase my NI each month.
Does this seem right?