Employee Flat Rate Expenses Allowances
People who are employed within certain trades are entitled to claim a flat rate allowance in respect of tools and protective clothing without having to provide receipts or other evidence. Full details are available by clicking on the following link:
http://www.hmrc.gov.uk/manuals/eimanual/eim32712.htm
Employee Mileage Rates for Travelling in your Employment
If you use your own car in the course of your employment then you will usually receive reimbursement from your employer in the form of a mileage rate. The tax office publishes a maximum rate that can be paid without the employee incurring a tax charge, and these cover motor cars, motor bikes and cycles. For instance, the maximum rate for a car is currently 45p per mile. Full details are available by clicking on the following link:
http://www.hmrc.gov.uk/rates/travel.htm
Remember, if your employer reimburses your travel at a lower rate then you can make a claim for the difference against your tax. This may involve completing a self-assessment tax return.