Advance Tax Pakistan 2026
Section 147 Quarterly Payment Guide

Advance tax under Section 147 of the Income Tax Ordinance 2001 is a quarterly pre-payment of estimated annual income tax. It applies to taxpayers whose annual tax liability is expected to exceed Rs. 1 million — primarily business owners, professionals, landlords, investors, and high-earning salaried employees with non-salary income. Understanding advance tax is critical because underpayment attracts the default surcharge under Section 205, which continues to accrue monthly until the outstanding is cleared.

Finance Act 2026 revised advance tax thresholds and rates. See the full Finance Act 2026 summary for all changes.

Who Must Pay Advance Tax Under Section 147

Section 147 advance tax applies to every person whose latest assessed tax exceeds Rs. 1 million, excluding salaried taxpayers where the employer withholds full tax monthly. The following categories typically fall within advance tax:

• Business owners and sole proprietors — shops, manufacturing, trading, and service businesses where income is self-declared rather than subject to employer WHT
• Professionals in private practice — doctors, lawyers, engineers, consultants, and architects billing clients directly
• Landlords with rental income — property owners earning above the non-taxable threshold from multiple properties
• Investors with dividend and capital gains income — equity investors, mutual fund unitholders, and property traders
• Salaried employees with significant non-salary income — salary income has employer WHT but rental income, freelance income, or investment income may not be fully covered by employer deductions

Advance Tax Payment Schedule 2026

Total advance tax paid over the year equals 100% of the estimated annual tax. If your actual tax when the income tax return filing is filed is less than advance tax paid, the excess is a refundable credit. If less advance tax was paid than the final tax, the shortfall plus default surcharge becomes payable with the annual return.

How to Calculate Your Advance Tax Instalment

The calculation base for Section 147 is the latest assessed tax. FBR provides two methods:

Method 1 — Based on latest assessed tax: Each quarterly instalment = Latest assessed tax × 25%

Example: If your TY2025 assessed tax was Rs. 2 million, your quarterly instalment for TY2026 is Rs. 500,000 per quarter (Rs. 2M × 25%). If you believe your TY2026 income will be higher, you can voluntarily increase the instalment to avoid underpayment.

Method 2 — Estimate revision mid-year: If your income has changed significantly from the prior year (business downturn or expansion), you can file a revised estimate on IRIS and adjust future instalments accordingly. The revised estimate must be filed before the relevant instalment due date.

How to Pay Advance Tax on IRIS

1. Log in to IRIS (iris.fbr.gov.pk) with your NTN/CNIC and password
2. Navigate to Payments → Create Payment
3. Select payment type: "Advance Tax u/s 147"
4. Enter the tax year (TY2026 = 2025-26) and the instalment amount
5. Select your bank from the dropdown and generate a PSID (Payment Slip ID)
6. Pay the PSID at your bank branch, bank mobile app, or internet banking
7. Payment typically reflects in IRIS within 2–3 business days and can be verified in "Payment History"

Default Surcharge for Underpayment of Advance Tax

If you fail to pay advance tax instalments, or pay less than the required amount, FBR levies a default surcharge under Section 205 at KIBOR + 3% per annum on the unpaid amount. KIBOR (Karachi Interbank Offered Rate) fluctuates; at typical KIBOR rates of 10–12%, the total default surcharge rate is 13–15% per annum. This surcharge continues to accrue monthly from the due date of the missed instalment until the payment date.

Advance Tax Credit — How It Works With Final Tax

Advance tax is fully adjustable against the final income tax liability when you file your annual return. The process at return filing time:

1. IRIS automatically pulls your advance tax payments from "Payment History" into the annual return
2. The total advance tax paid is deducted from your gross tax liability for the year
3. If advance tax paid exceeds final tax: the excess is a tax refund claim (Section 170)
4. If final tax exceeds advance tax paid: the balance plus default surcharge is payable at return filing

Advance Tax for Freelancers and Self-Employed Professionals

Freelancers and self-employed professionals in Pakistan — including IT consultants, designers, writers, engineers, and management consultants — are among the fastest-growing taxpayer categories. If your total estimated income tax for the year exceeds Rs. 1 million, Section 147 advance tax applies to you exactly as it does to any business owner. There is no carve-out for freelancers simply because their income arrives as project-based payments rather than a regular salary.

The challenge for freelancers is estimating annual income when project flow is unpredictable. A practical approach: review your prior year total earnings, compute the approximate tax using the income tax slab rates, and if the result exceeds Rs. 1 million, plan for quarterly advance tax. If you are below the Rs. 1 million tax threshold — which for an individual typically corresponds to income above approximately Rs. 6–7 million depending on deductions — advance tax does not apply, and you pay any tax owed only when filing the annual return.

A simple rule of thumb for freelancers who are in the advance tax bracket: set aside 25% of each project payment into a separate account designated for taxes. By the time the quarterly instalment is due, the accumulated reserves should cover the payment without straining cash flow. This is especially important for freelancers receiving foreign remittances, where income can arrive in large irregular amounts.

For detailed guidance on income declaration and tax planning for independent earners, see our freelancer income tax guide, which covers IRIS filing, foreign remittance treatment, and allowable deductions for home-office and professional expenses.

Advance Tax vs Withholding Tax — Key Differences

Advance tax under Section 147 and withholding tax (WHT) deducted under various provisions of the Income Tax Ordinance 2001 are both forms of pre-payment against final annual tax liability, but they operate very differently and are frequently confused.

Withholding tax is deducted at source by the payer — not by the taxpayer. Your bank deducts WHT on savings profit under Section 7B/151. Your client deducts WHT on service payments under Section 153. Your employer deducts WHT on salary under Section 149. The taxpayer receives the net amount after WHT, and the payer deposits the deducted amount directly to FBR. The taxpayer's role in WHT is passive — the obligation sits with the payer.

Advance tax, by contrast, is entirely self-assessed and self-paid. You calculate the instalment amount, generate the PSID on IRIS, and make the payment through your bank. No third party is involved. The responsibility sits entirely with the taxpayer.

Both WHT and advance tax are credited against your final tax liability when you file the annual return. IRIS automatically imports all WHT certificates and advance tax payment records into your return. If your combined WHT deducted at source already covers your full estimated tax liability for the year — as it typically does for pure salaried employees — then no separate advance tax payment is needed. The Section 147 requirement only kicks in when WHT coverage is insufficient, meaning your residual tax (after all WHT credits) exceeds Rs. 1 million.

Advance Tax — Companies vs AOPs vs Individuals

Section 147 applies to all three taxpayer categories, but the calculation base and compliance burden differ meaningfully between them:

Companies face the strictest requirement — there is no Rs. 1 million threshold exemption for companies the way there is for individuals. Every active company with any assessed tax history is expected to estimate and pay quarterly, even in years where profitability dips, unless a revised (lower) estimate is filed with proper justification.

Common Mistakes to Avoid With Advance Tax

• Ignoring advance tax after a strong prior year: If TY2025 was unusually profitable (a one-off contract, asset sale), taxpayers often forget that Section 147 instalments for TY2026 are still based on that inflated assessed tax — leading to overpayment unless a revised estimate is filed early.
• Filing the revised estimate too late: A downward revision only protects you from surcharge on instalments due after the revision is filed — it does not retroactively fix instalments already missed or underpaid.
• Confusing WHT credit with advance tax payment: Some taxpayers assume that heavy WHT deducted during the year automatically satisfies Section 147 — this is only true if the WHT already covers the full estimated liability. Any shortfall still needs a separate PSID payment.
• Paying to the wrong tax year code: A very common bank-counter error — the PSID must be generated with the correct tax year (TY2026, not TY2025) or the payment will not reflect against the correct instalment in IRIS.
• Not reconciling before the annual return: Waiting until return-filing time to discover a missed or misallocated instalment means the default surcharge has already been accruing for months. Check Payment History quarterly, not annually.

Frequently Asked Questions