Sales Tax Act, 1990

What it is

The Sales Tax Act, 1990 imposes a value-added-style tax on the supply of goods in the course of taxable activity and on the import of goods. The standard rate has stood at 18 per cent since 2023. Persons making taxable supplies above the registration thresholds must register, issue tax invoices, file monthly returns and account for output tax against input tax. The rate structure is heavily schedule-driven: retail-price taxation for listed consumer goods, zero-rating under the Fifth Schedule, exemptions under the Sixth, reduced rates under the Eighth, with the detail moved constantly by notification. Since the Eighteenth Amendment, the Act reaches goods only; sales tax on services belongs to the provinces under their own statutes, with a separate regime for the Islamabad Capital Territory.

The Federal Board of Revenue administers the Act through Inland Revenue. Enforcement runs from audit and assessment to recovery, and — distinctively among the fiscal statutes — into criminal territory: tax fraud is an offence, with prosecution and arrest powers alongside civil recovery. Appeals follow the same track as income tax, reworked in 2024 by the Tax Laws (Amendment) Act, 2024 [current routing and thresholds TO BE VERIFIED BY REVIEWING LAWYER].

What changed

The recent Finance Acts have moved the statute from rate-setting toward enforcement. The Finance Act, 2024 pruned exemptions and zero-rating and raised rates on several previously favoured sectors [specifics TO BE VERIFIED BY REVIEWING LAWYER]. The Finance Act, 2025 went further: it rewrote the definition of "tax fraud" in broad terms and restated the powers of Inland Revenue officers to arrest for tax fraud. After sustained protest from the business community, safeguards were added so that arrest requires high-level committee approval within the FBR and is confined to substantial cases [the negotiated safeguards, monetary thresholds and their present form TO BE VERIFIED BY REVIEWING LAWYER]. In parallel, mandatory electronic invoicing arrived: registered persons are being integrated with the FBR's digital invoicing system in phases under notifications issued in 2025, with deadlines extended more than once [current integration deadlines TO BE VERIFIED BY REVIEWING LAWYER].

This entry is framed as of the first half of 2026. A further Finance Act takes effect on 1 July 2026 and this note must be re-read against it [Finance Act 2026 changes TO BE VERIFIED BY REVIEWING LAWYER].

Who is affected

Manufacturers, importers, distributors, wholesalers and retailers carry the direct compliance load: registration, e-invoicing integration, monthly returns and input tax discipline. Company officers now face personal criminal exposure where the FBR alleges tax fraud, which changes the character of what used to be a civil audit dispute. Buyers are affected too: input tax claims fail where a supplier turns out to be unregistered, blacklisted or issuing fake invoices. Service businesses live on the boundary, facing goods-versus-services characterization disputes and occasional double demands from federal and provincial authorities.

What to do

Verify the registration and active status of every supplier before claiming input tax, and re-verify periodically — flying-invoice exposure attaches to the claimant. Complete e-invoicing integration ahead of the applicable deadline rather than on it. Reconcile sales tax returns against income tax declarations and bank credits, because the FBR's systems now do. Treat any notice alleging tax fraud as a quasi-criminal matter from the first day: engage counsel before recorded statements, and do not let an accounts officer handle it as routine correspondence. Where the same transaction draws both federal and provincial demands, contest the characterization early and in writing.