When using the Sage 50 Accounts CIS v2 module, once you set up your subcontractor records you can process your purchase invoices as normal. On paying your subcontractors, Sage 50 CIS calculates the deductions you need to make and posts the required credit notes. You can be sure that the deductions you make are accurate.
Posting CIS invoices from subcontractors is largely the same as for any other supplier.
When you post an invoice from a subcontractor, the full balance of the invoice shows as outstanding on the subcontractor record. Any required deduction applies automatically when you pay the invoice from the subcontractor.
To allocate a CIS invoice and credit note together, they must use the same type of nominal code, either both CIS taxable or both non-taxable.