Estimate your FBR refund or balance due in seconds. Enter annual salary and every adjustable WHT amount you paid through the year - Section 149 (salary), Section 236 (mobile), Section 231A (banking), Section 231B (vehicle). Get an instant number before you open IRIS.
Sum the year's adjustable WHT amounts - the figures on your salary certificate, mobile bill, bank statement, and vehicle / property challans. Section 150 (dividend) and Section 151 (bank profit) are final tax; do NOT include them here.
Your annual tax liability exceeds the WHT deducted through the year. You'll need to pay this via challan on iris.fbr.gov.pk before submitting the return - or by 30 September to avoid the Section 182 late-payment penalty.