https://help.tallysolutions.com/docs/te9rel60/Tax_India/TCS/Getting_Started_with_TCS.htm

Enabling TCS

To get started, you have to enable the Tax Collected at Source (TCS) module in Tally.ERP 9 and enter your company's registration details.

To Enable Service Tax

1.    Go to Gateway of Tally > F11: Features > Statutory and Taxation.

2.    In the Company Operations Alteration screen, set Enable Tax Collected at Source (TCS) to Yes.

3.    Enable the option Set/alter TCS details.

The Company Operations Alteration screen appears as shown below:

4.    Enter the TAN registration number.

5.    Enter the Tax Deduction Account Number (TAN).

6.    Select the Collector Type.

7.    Enable the option Set/alter details of person responsible.

8.    Press Enter.

9.    Enable Ignore IT Exemption Limit, if required.

10.  Press Enter.

The TCS Collector Details screen appears as shown below:

11.  Press Ctrl + A to save the details.

For more TCS configurations, click here.