What taxes does a small business in Pakistan pay?

Quick answer

A small business typically deals with income tax on profits (corporate rate for companies, slab rates for individuals/AOPs), sales tax if registered (federal on goods, provincial on services), and withholding taxes it must deduct on certain payments like salaries, rent, and supplier invoices. Staying a filer on the Active Taxpayer List reduces the withholding rates applied to your own transactions across the year.