https://help.tallysolutions.com/docs/te9rel64/Voucher_Entry/Optional_Non-Accounting_Vouchers/Post_Dated_Vouchers.htm

Post Dated Vouchers

While entering vouchers, you can mark them as post dated , as a result these vouchers are not updated in the ledgers till the date specified in the voucher. This is useful for entering transactions that take place on a regular basis. For example, if you issue post dated Cheques towards payment of installments, you can set up the payments in advance, and Tally.ERP 9 will only update them in the ledgers on the due date.

Mark vouchers Post Dated by using CTRL + T

Post-dated Vouchers Register

All Post-dated vouchers are maintained in Post-dated voucher Register.

Go to Gateway of Tally> Display> Exception Reports> Post-Dated Vouchers

Difference in the treatment of Post-dated Vouchers and other Unconventional Vouchers

The major difference between post dated vouchers and other Unconventional vouchers is that post dated Vouchers affect regular books of accounts on the date of the voucher. Post-dated vouchers are not available for selection in Scenarios.