The Reimbursement Is Not Money Until It Comes Back
A promised reimbursement has a peculiar effect on the budget. The purchase feels temporary, almost as if the money never left. Then rent clears, groceries happen, the repayment is still waiting for approval, and checking has to carry both the household and somebody else's expense.
This happens with work travel, supplies bought for an employer, insurance claims, flexible spending accounts, group gifts, shared vacation bookings, and the restaurant bill one person puts on a card. The reason for the delay changes. The cash-flow problem does not: your money is gone until another deposit arrives.
A short reimbursement ledger can keep an expected repayment from masquerading as available cash. It records what left, who owes it, what must happen next, and the date you will follow up. It also helps you decide whether you can afford to front the next expense.
Enter the full purchase in the budget when the card is charged or the cash leaves checking. Do not wait for the repayment. If a $240 hotel charge appears today, today's available money is $240 lower even when an employer expects to repay every dollar.