A receipt and payment note show the same purchase: record the expense once
By Erik Nilsen · Kroni3 min read
One expense can leave two records: a receipt showing the products and a note showing payment. That does not mean your child bought the same thing twice. Identify the event both records describe and use one agreed amount in the family ledger.
Match the records before adding amounts
In a hypothetical example, your family's virtual record shows the adult owes your child 100 units. Your child chooses an optional item costing 42, and you agree the adult will pay for it instead of paying those 42 to the child. The receipt shows 42 and the adult's payment note also shows 42. These are arbitrary teaching amounts.
The purchase fulfils 42 of the agreed balance. The amount still owed is 100 − 42 = 58 units. Deducting 42 for the receipt and another 42 for the payment note leaves 16. You have then deducted 84 for one item costing 42.
Put the receipt beside the note. Compare the date, seller and amount. Write one purchase line and use the other document to support that same line. Two documents do not automatically mean two events.
Investigate what actually matches
A realistic snag is two different purchases having the same amount. You cannot combine them simply because both show 42. Find what was bought and when payment happened. Identical amounts may describe different products, while different dates may be two records of one purchase.
If payment covers several products, identify the agreed child share. A payment total of 100 does not necessarily equal your child's item costing 42. Mark their share before changing the ledger and keep the explanation for later checks.
This exercise uses a virtual balance to represent money the parent still owes. If your child already received cash and paid independently, follow the cash spending instead. The adult's unpaid amount should not automatically change because of a receipt for money already paid to the child.
Ask your family: “Is this one purchase with two documents, or two actual purchases?” Once that is clear, record one line per event and check what remains. Your child can help match the records without needing to understand every label used by a payment system.
Carry the calculation into your family agreement
Kroni can keep track of your child's virtual balance. The app does not transfer money, so any actual purchase is paid for outside it. Agree on what you will record, then check the amount with your child afterwards. Do not deduct a possible cost as though the purchase had already happened. Read about allowance in Kroni.
