Disbursements from petty cash can be charged to a research grant. There is a limit of £25 per item and all petty cash expenditure should be supported by a receipt. There are specific procedures for petty cash to be charged to a grant; the code for the credit side of the transaction to the GL to be used in the flex field is xxAA/AAAA/EZZH, where ‘xx’ is your department code.