Local authorities are wasting millions by offering excessive payments to staff who use their car for work, according to a report.
An investigation has found that 173 councils are paying employees more for mileage than the rate approved by HM Revenue and Customs.
This can make them hundreds of pounds better off than workers in private sector firms – or other town halls – that stick to the limit.
The Government stressed last night that councils should not be paying more for mileage than recommended by HMRC.
Local authorities are wasting millions by offering excessive payments to staff who use their car for work, according to a report (file picture)
Employees who use their own vehicles for business journeys are often reimbursed with mileage allowance payments to cover their expenses, including fuel and running costs.
HMRC’s Approved Mileage Allowance rate for cars and vans is 45p for the first 10,000 miles, and 25p thereafter.
This is the amount an employee can receive without paying tax and is designed to prevent firms from using the allowance to pay staff more without incurring more tax.
But an investigation by the Taxpayers’ Alliance found that 173 councils are paying more than the approved rate, with 73 authorities, including Ashford in Kent, Blaby in Leicestershire and Tewkesbury in the Cotswold, paying 65p a mile in 2016/17.
Bassetlaw in Nottinghamshire paid the highest rate at 69p per mile – more than 50 per cent over the approved rate.
An employee claiming for 1,000 miles would be £240 better off before tax than someone paid the 45p rate.
In total, local authorities handed out £223million in mileage allowances to employees in 2016/17, down from £231million the previous year.
The Taxpayers’ Alliance says the average council mileage rate is 48.92p.
Chief executive John O’Connell said: ‘It’s not credible for local authorities to plead poverty and raise council tax while paying over the odds for basic expenses, especially when the Government has been telling them to rein in these payments.
‘Councils must continue to root out wasteful spending like this so that they can deliver tax cuts for hard-pressed residents.’
Tory MP Julian Knight said: ‘It’s staggering that at a time when we have councils telling residents that they have to make savings, some are paying up to 50 per cent more than the HMRC maximum for mileage.
‘It seems a gross waste of public money and is indefensible.’
But the Local Government Association said the findings failed to distinguish between urban and rural councils, where employees need to drive more.
A spokesman said: ‘The average figures used by Taxpayers’ Alliance are utterly misleading. By failing to weight the data, they have shown they can’t tell the difference between a council in London and a council in Cumbria.

Bassetlaw District Council in Nottinghamshire paid the highest rate at 69p per mile – more than 50 per cent over the approved rate
‘If they had weighted their figures, they would have found the average is actually 45.7p – just 0.7 pence higher than the HMRC recommended rate.’
A Department for Communities and Local Government spokesman said: ‘Authorities ought not be paying more than recommended HMRC levels.’
Bassetlaw council said it had reduced the cost of staff mileage by a third in four years and plans to cut its mileage rate.