What can I add to expense reimbursements?

You can add to the expenses:
Kilometer compensation: You can add your business travel and travel expenses during working hours if you travel with your own or your spouse’s car.
Meal Reimbursements: You can add a meal reimbursement for the meals you eat if you do not have the opportunity to dine at your normal dining place and if you do not earn a daily allowance for the same days.
Receipts: If the work requires an acquisition, you can add the associated receipts. As a general rule the consumer goods can be added, goods that remain in ownership cannot. For example, a builder can add a model, but not a hammer.