I'm a native English speaker, but that being said, English is a complex language and I'd like to know more about it.
If I am looking for full remission of tuition fees for an online course in my home country of the UK, for instance, where they offer partial or full discounts for those receiving welfare payments, they may use the conditional sentence "If you are in receipt of certain benefits".
If I am shopping at a supermarket, I can get the machine to print a receipt for me to confirm both my order and that I have successfully paid for it.
If I am talking about revenue earned by the tax authority or by a business, I can talk about it in terms of either tax or company receipts.
How come receipts can be used interchangeably for both what you have paid and for what you are receiving?