It is possible for parish councillors to be paid a modest allowance (except for coopted members) and they can also receive reimbursement of expenses (except for coopted members). However, most councils do not pay any allowance to ordinary councillors, and it is common for councillors to make no claims for expenses.
Many councils make some allowance to the chairman, who is expected to represent the council at civic events, and therefore incurs more costs than most council members.
The parish clerk should give full details on request.