+92 315 0202866 info@einvoices.pk

Filing the Monthly Sales Tax Return: A Walkthrough That Matches Reality

Sales Tax & Returns August 31, 2026 2 min read
August 31, 2026 2 min read eInvoices Team
Filing the Monthly Sales Tax Return: A Walkthrough That Matches Reality

The monthly sales tax return rewards routine and punishes improvisation. This is the sequence experienced filers follow.

Before the portal: reconcile

Match your sales register to invoices issued, and your purchase register to supplier invoices received. With e-invoicing, much of your sales side already sits with FBR, so your declared figures must agree with the reported trail.

The annexure flow

  • Sales side: your issued invoices populate the sales annexure. Verify totals against your register rather than trusting memory.
  • Purchase side: input tax claims depend on your suppliers having declared those invoices. Unmatched purchases are where claims get deferred or rejected, so chase supplier compliance during the month, not on filing day.
  • Adjustments: credit and debit notes must reference the original invoices correctly.

Payment and submission

The return computes payable tax after input adjustment. Generate the payment challan, pay through the banking channel, attach the CPR and submit within the due date. Filing without payment where tax is due is an incomplete filing.

Dates that govern the month

The sales tax cycle runs on statutory dates within the following month for annexure and return submission. Build your internal cutoff several days earlier, because supplier corrections take time and the portal is busiest at the deadline.

Outsourcing the routine

Most of our clients hand us this entire cycle. Their team issues invoices; we reconcile, chase mismatches, file and archive the evidence. If your months end in a filing panic, that is a solvable problem.

Frequently Asked Questions
Why was my input tax claim not accepted?
Input claims depend on your supplier having declared the same invoice. Unmatched purchases get deferred or disallowed, so supplier compliance has to be chased during the month.
Is a sales tax return complete without payment?
No. Where tax is payable, the challan must be paid through the banking channel and the return submitted with payment evidence within the due date.
When should I internally close my sales tax month?
Several days before the statutory dates, leaving time to fix supplier mismatches and avoid the deadline rush on the portal.