Set up a Purchase Ledger Account and call it Petty Cash
As people take money / bring receipts back post them straight to this account and code them to where they need to go.
If they have been posted the GANI of the supplier move these across to the Petty Cash GANI before completing posting.
You can do this by going in to the supplier and clicking on the GANI tab –highlight the line you need to move and the on the right hand side you will see a transfer button. Select and then enter in the Petty cash account number and then transfer.
At the end of the month when you come to Reconcile back to tin, you will need to post a credit invoice for the total value, no VAT and with the same month’s date, so for example if you are clearing October down then use 31/10/19 as your nominal date & tax point date.
Once done run a TB for that period and you Control code 0.0.60.700 should then match back to what you have in your tin. If it doesn’t then you know you are missing something.
Be very date aware when posting items.