Vat adjustment class in tally erp 9

Incase of Rel 5.x, you can directly go to Gateway of Tally >> Accounting Vouchers >> F7: Journal Voucher. In creation/alteation screen click on Stat Adjustment button to pass VAT adjustment entries.

First of all you need to create the Voucher class for the journal entry.
Go to Gateway of Tally > Accounts Info. > Voucher type > Alter > Select Journal.
Most of the fields are already completed as the voucher type is in the alteration mode.
Hence tab down to the field Name of Class.
Enter VAT Adjustment Class under the Name of Class field and press Enter. In the
voucher type class screen, set Use Class for VAT Adjustments to Yes.
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