Mushak 4.3

National Board of Revenue (NBR)

VAT Forms

Mushak 4.3 (Input‑Output Coefficient) is a VAT document used in Bangladesh to record the ratio between raw materials (inputs) and finished goods or services (outputs). It helps businesses determine how much input is required to produce a specific output and is used by the VAT authority to calculate and justify VAT claims. Registered VAT entities must maintain Mushak 4.3 to ensure accurate VAT compliance and audit transparency.