EIM71334 - Tax treatment of working rule agreements: rates of allowances paid under particular agreements: Plumbing and Mechanical Engineering Services
Lodging or overnight subsistence allowance
Since 5 January 2004 the allowance has been £28.35 (plus taxable subsistence of £4.18 in London).
Travel allowance
Travel Allowances are paid at the rate of 30 pence per mile. The first 4 miles each way are taxed in full. After the first 4 miles 50% of the payment is paid tax free and 50% is taxable.

