https://help.tallysolutions.com/docs/te9rel60/Tax_India/VAT/Puducherry/PY_Incl_Tax_Sale.htm

Recording Sales Inclusive of Tax (Puducherry)

You have to enable Is Inclusive of duties and taxes? at the stock item master to define the price of the stock item including tax.

To record inclusive of tax sales transaction

1.    Go to Gateway of Tally > Accounting Vouchers > F8: Sales.

2.    Select the Party's A/c Name.

3.    Select the Sales Ledger with taxable nature of transaction.

4.    Select the stock item for which the option Is inclusive of duties and taxes? is enabled.

5.    Enter the Quantity. The Inclusive of Tax screen is displayed to enter the inclusive of tax rate.

o     Enter the Rate (Inclusive of Tax).

o     Press Ctrl+A to save and to return to sales invoice.

6.    Select the common VAT ledger. Based on the VAT rate, amount will be automatically displayed.

The sales invoice appears as shown below:

7.    Press Enter to save.