Entering expenses with a receipt as a self-employed student with vAT exemption?

Hey!

I am a self-employed student with VAT exemption. I do not have an invoice for some purchases, but I do have the receipt.

I have read about receipts, but that was for those subject to VAT; they cannot recover VAT on them, which is why an invoice is important for them.

But can you use that in your expenses if you are VAT exempted? Because as a VAT exempted person, you don’t have to recover VAT.

Thanks in advance!