While entering vouchers, you can post-date them, and Tally.ERP will not update the ledgers until the date in question. This is most useful for entering transactions that take place on a regular basis.
For example, if you pay for something by installments, you can set-up the payments in advance, and Tally.ERP will only enter them in the ledgers as they fall due. Mark vouchers ‘Post Dated’ by [CTRL] + [ T ] or click on the button. The button toggles with ‘Current’.
All Post-dated vouchers are maintained in a Post-dated vouchers Register.
Gateway of Tally > Display > Exception Report > 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 these actually affect regular books of accounts on the date of the voucher. Post-dated vouchers are not available for selection in Scenarios