Tally.ERP 9 allows you to allocate the expense incurred in lieu of customs duty paid to the cost of the stock item. The configuration to allocate the customs duty expense can be made in ledger masters used in recording transactions involving custom duty.
To allocate customs duty to the cost of an item
1. Go to Gateway of Tally > Accounts Info. > Ledgers > Create/Alter.
2. Click F12: Configure.
3. Set the option Allow method of appropriation (used in purchase invoice)? to Yes.
4. Press Ctrl+A to accept.
Now custom duty can be allocated to the cost of an item.