Misc Receipts and Tax Classiifcation Codes.
e.g.
We have 3 Tax Status, STANDARD, EXEMPT and ZERO
We then have two rates for each Status. (INPUT STANDARD and OUTPUT STANDARD) & (INPUT EXEMPT and OUTPUT EXEMPT) & (INPUT ZERO and OUTPUT ZERO). Each Rate points towards a specific GL Account string.
We then use the Tax Lookups Codes under Advanced Setup Options (ZX_OUTPUT_CLASSIFICATIONS and ZX_INPUT_CLASSIFICATIONS). We disable the rates that we don't want to see in each Application.
What happens when we create a negative Misc Receipt in Receivables? If it has a negative value it is assumed that it is a "Payment" and should have Input Tax Rates.