how much money should i expect back?

wrighty0__3

hi folks,
just a quick 1 im an electrical contractor who has been using my car to get to sites on occasions,(my company dont pay me miles within a certain distance) im aware i can claim the tax back on my costs using a p87 form i think? so i have been noting my miles down.

ive also been informed i can claim costs for tools back using the same form.

so my predicament is i need some new tools in the region of £750+ so i was wondering if i claimed 2500miles and the cost of these tools, how much would i be looking at getting back? or would they just change my tax code? just so i know what position im in before the tax year, wether i need to be quick in purchasing the tools or not lol.
cheers in advance

System

2500 miles @40p/mile = £1000 + £750 for your tools = £1750

You get tax relief on that at 20% or 40% depending on your level of income so

£1750 @20% = £350 refund
£1750 @40% = £700 "