Mastering how to do advance tax in Pakistan for companies is a mandatory requirement for all corporate entities whose last assessed tax was Rs. 1 million or more. In 2026, the FBR utilizes the Iris 2.0 system to monitor these payments strictly every quarter. Because the system bases the calculation on your previous year’s performance, it acts as an “estimate” of your current success. Consequently, failing to pay these installments on time leads to a “Default Surcharge” (interest) of 12% per annum. By following the correct formula for how to calculate advance tax in Pakistan for companies, you ensure your business remains compliant and avoids unnecessary penalties.
The Standard Calculation Formula
Under Section 147, most companies use a formula that balances their current turnover against their previous tax ratio.
- A: Your company’s actual turnover (revenue) for the current quarter.
- B: The total tax paid by the company in the immediately preceding tax year.
- C: The total turnover/revenue achieved in the preceding tax year.
- D: Any tax already withheld at source by banks or clients during the current quarter.As a result, your payment is perfectly proportional to your current growth compared to last year’s performance.
The 2026 Corporate Payment Schedule
Timing is just as important as the calculation when learning how to calculate advance tax in Pakistan for companies. You must deposit the amount by the 25th day of the month following each quarter.
- Quarter 1 (July–Sept): Due by September 25.
- Quarter 2 (Oct–Dec): Due by December 25.
- Quarter 3 (Jan–Mar): Due by March 25.
- Quarter 4 (Apr–Jun): Due by June 15 (Note: The final quarter deadline is earlier to close the fiscal year).Furthermore, banking companies follow a more rigorous “monthly” payment cycle rather than the quarterly schedule used by general private limited companies.
Adjusting for Losses or Lower Income
Furthermore, how to calculate advance tax in Pakistan for companies allows for flexibility if your business is experiencing a downturn.
- Estimating Lower Tax: If you believe your 2026 tax liability will be significantly lower than last year, you can file an “Estimate” via Iris 2.0 before the due date.
- Commissioner Approval: While you can self-calculate, if your estimate is more than 10% lower than the standard formula suggests, the FBR may issue a notice for justification.
- Adjusting Withholding: Always ensure your accounts department tracks every single tax deduction on phone bills, imports, and electricity. Thus, you can subtract these from your “D” variable to minimize your cash outflow.
2026 Corporate Compliance Summary
- Threshold: Mandatory if previous year’s tax was > Rs. 1,000,000.
- Payment Mode: Generate a PSID on Iris 2.0 under the code “6415-Advance Tax u/s 147”.
- Banking: Must be paid through an ADC (Alternate Delivery Channel) like Internet Banking or ATM to be valid.
- Penalty for Default: 12% annual surcharge plus potential exclusion from the ATL.
Legal Assistance
For professional legal guidance and support in Tax Matters, you may contact:
Mr. Osama Khalil
Lawyer & Legal Consultant
📞 Phone: 0316-1829946
📧 Email: contact@osamakhalillaw.com | contact@khalilassociates.org