Can we collect expenses that is not to be reimbursed to employee (e.g. mileage or expenditures custo

 Is there a way we can collect expenses incurred by an employee that we need to record for calculation purposes or to pass via Projects to customer - but not reimburse to the employee.

Examples are:

A) Mileage calculation where we do not want to make payment via Oracle but in 3rd party payroll system. Cost is maybe to be passed to Projects for expenditure collection and possibly invoice.

Costs of Transport where employee is using company car. Employee is not to be reimbursed but the end-client must be invoiced for the expense.

Any suggestions with respect to the collection of data through iExpense or other channel applicable for the general employee user.