https://help.tallysolutions.com/docs/te9rel64/Licensing/Introduction_to_Rental_License.htm

Introduction to Tally.ERP 9 Rental License

Tally.ERP 9 allows you to buy the product license for a specified rental period.

You can use all the features of the product during the rental period, without purchasing a permanent license. To use the Tally.ERP 9 rental license, you need to pay rental charges for a month, quarter, or a year, as required.

After expiry of the rental period, you can:

Extend your rental period , or

Buy a permanent license

During the rental period, you can change the product edition from Tally.ERP 9 Silver (Single User) to Tally.ERP 9 Gold (Multi-User), or vice versa. You can also purchase a Tally.ERP 9 regular license during the rental period, or on expiration of your rental license.

See also

Get Rental License

Licensing - FAQ