When posting a disbursement there is a tick box after Payee: Do not reclaim VAT.
If this is ticked it will stop VAT from being reclaimed prior to the disbursement being paid out.
This option is available for.
Anticipated Disbursements - DUU
Disbursements - Paid - DPU
Disbursement Invoice - DIN
Anticipated Cost of Sale - COA
Cost of Sale - Paid - COS
Purchase Ledger
Disbursement Invoice- DI(Purchase Ledger)