As per Lawkidunya, Here are the key provisions of Section 149 of the Income Tax Ordinance, 2001 (Pakistan):

1. Taxation of Salary Income: Salary income is taxable in the hands of the employee.
2. Tax Deduction at Source: Employers are required to deduct tax from the salary paid to employees.
3. Tax Rates: Tax rates applicable to salary income range from 2% to 25%, depending on the income slab.
4. Taxable Salary: Salary includes all types of remuneration, such as:
– Basic salary
– Bonuses
– Allowances
– Benefits in kind
5. Exemptions and Deductions: Certain exemptions and deductions are allowed from taxable salary, such as:
– Medical allowance (exempt up to PKR 10,000 per month)
– Phone bills (exempt up to PKR 1,000 per month)
– Housing rent (exempt up to PKR 10,000 per month, subject to conditions)
– Conveyance allowance (exempt up to PKR 10,000 per month)
6. Employer’s Obligations: Employers are required to:
– Deduct tax from salary payments
– Deposit deducted tax with the Federal Board of Revenue (FBR)
– File tax return (Form IRIS) and provide a certificate (Form S) to employees
7. Tax Return Filing: Tax returns must be filed by September 30 of each year.
8. Penalties: Failure to comply with tax laws and regulations may result in penalties and fines.
Please consult the Federal Board of Revenue (FBR) website or a tax professional for more detailed information and any updates on tax laws and regulations.