The Federal Board of Revenue (FBR) has extended the deadline for filing Sales Tax and Federal Excise Duty (FED) returns for the August 2026 tax period until September 25, 2026.
The extension applies to taxpayers covered by the directive, but there is an important condition: the sales tax liability must have been deposited within the prescribed due date.
The move gives taxpayers additional time to submit their August returns, but it does not provide the same extension for payment of the sales tax already due.
New Sales Tax Return Deadline: September 25, 2026
According to the FBR directive, the date for submission of Sales Tax and Federal Excise returns for the August 2026 tax period has been extended to:
September 25, 2026
The directive is dated September 18, 2026.
FBR has also placed the extension among the latest updates on its official website.
Who Can Use the Extended Deadline?
The FBR directive states that the extension applies to taxpayers for the August 2026 tax period, subject to the specified payment condition.
The key point for taxpayers is that the relief concerns the submission of the return.
To benefit from the extension, the due sales tax liability must have been deposited within the prescribed due date.
Therefore, taxpayers should not interpret September 25 as a general extension of both the tax payment and return-filing deadlines.
What Does the Extension Actually Mean?
The distinction between paying tax and submitting a return is important.
A taxpayer who deposited the required sales tax liability within the original prescribed period but had not completed submission of the August return now has additional time to file it.
The extended return filing date is:
Thursday, September 25, 2026
However, according to the FBR directive, the extension is conditional upon the due sales tax liability having been deposited within the due date.
Legal Authority for the Extension
FBR has granted the extension using powers available under two federal tax laws.
The directive refers to:
Section 74 of the Sales Tax Act, 1990
and
Section 43 of the Federal Excise Act, 2005
These provisions provide the legal basis under which FBR can grant extensions in appropriate circumstances.
Which Tax Period Is Covered?
The extension applies specifically to the:
August 2026 tax period
It should not automatically be treated as an extension for other tax periods or other types of tax returns.
Businesses should therefore check the applicable deadline separately for any other return or statement they are required to submit.
Normal Monthly Sales Tax Filing Schedule
Under FBR’s standard procedure, registered persons filing monthly sales tax returns generally have separate stages for annexure submission, payment and final electronic filing.
FBR’s published guidance states that under the standard monthly procedure, payment is generally due by the 15th day, while the electronic return is generally filed by the 18th day of the following month.
The September 25 extension therefore gives affected taxpayers additional time for submission of the August 2026 return.
What Should Taxpayers Do Now?
Taxpayers who have not yet submitted their August 2026 Sales Tax or Federal Excise return should avoid waiting until September 25.
Before filing, businesses should check:
- Sales and purchase records
- Output tax
- Input tax
- Sales tax already deposited
- Federal Excise Duty, where applicable
- Invoices and supporting records
- Relevant annexures
- Previous return information
- Any differences between accounting records and the return
Taxpayers should also confirm that the sales tax liability required under the FBR directive was deposited within the applicable due date.
What If the Sales Tax Was Not Paid on Time?
This is an important limitation of the extension.
The FBR directive specifically makes the extended filing date subject to the condition that the due sales tax liability was deposited within the due date.
Businesses that did not meet the payment requirement should not assume that the September 25 filing extension automatically removes the consequences of late payment.
Their position may depend on the relevant provisions of the Sales Tax Act, Federal Excise Act and applicable rules.
Professional tax advice may be appropriate where payment was delayed or a dispute exists over the amount payable.
Sales Tax and FED Returns Should Not Be Confused With Income Tax Returns
Taxpayers should also note that this extension concerns Sales Tax and Federal Excise returns for August 2026.
It is separate from the annual income tax return filing deadline.
FBR’s published income tax due dates currently state that individuals and Associations of Persons generally file their income tax returns on or before September 30.
Businesses and individuals should therefore keep the two deadlines separate.
Sales Tax/FED Return for August 2026: September 25, 2026, subject to the payment condition
Income Tax Return for individuals and AOPs: September 30
Only a Few Days Remain
With the extended deadline falling on September 25, taxpayers now have only a short period to complete their August return.
Businesses should use the additional time to reconcile their records rather than treating the extension as a reason to delay filing again.
Waiting until the final hours can create unnecessary problems if taxpayers encounter missing invoices, incorrect annexures, reconciliation differences or technical issues during submission.
Note
FBR has officially extended the submission deadline for Sales Tax and Federal Excise returns for the August 2026 tax period until September 25, 2026.
The most important condition is that the due sales tax liability must have been deposited within the prescribed due date.
The extension should therefore be understood primarily as additional time to submit the return, not as a general extension of the sales tax payment deadline.
Taxpayers who have already deposited their due liability but haven’t filed the August return should complete the filing before September 25.
TaxToday.pk will continue monitoring FBR for any further extensions, notifications or changes to tax filing deadlines.