Taxation

Sales Tax Filing Deadlines and Requirements

Abbas & Co Team
February 20, 2026
Sales Tax Filing Deadlines and Requirements

Sales tax compliance in Pakistan requires timely filing and proper documentation. This comprehensive guide covers everything you need to know about sales tax filing deadlines, requirements, and best practices.

Sales Tax Registration

Who Must Register?

- Businesses with annual turnover exceeding PKR 10 million (tier-1 retailers)

- Manufacturers regardless of turnover

- Importers

- Service providers in taxable categories

- Wholesalers and distributors

Registration Process

1. Visit FBR's online portal (IRIS)

2. Complete registration form

3. Upload required documents

4. Obtain Sales Tax Registration Number (STRN)

Filing Requirements

Monthly Returns

Standard Rate Taxpayers (Monthly)

- **Form:** STR-7 (Sales Tax Return)

- **Filing Deadline:** 15th of following month

- **Payment Deadline:** 15th of following month

**Example:** January sales tax return and payment due by February 15th

Quarterly Returns

Special Persons (Quarterly)

- Small businesses with annual turnover below specified threshold

- **Filing Deadline:** 15th of month following quarter-end

- **Q1 (Jan-Mar):** Due April 15

- **Q2 (Apr-Jun):** Due July 15

- **Q3 (Jul-Sep):** Due October 15

- **Q4 (Oct-Dec):** Due January 15

Documentation Requirements

Sales Records

- Sales invoices (serially numbered)

- Credit/debit notes

- Daily sales register

- Customer details for B2B sales

Purchase Records

- Purchase invoices

- Import documents

- GD/Goods Declaration

- Purchase register

Required Information on Tax Invoices

1. Supplier's STRN

2. Invoice number and date

3. Buyer's STRN (for registered persons)

4. Description of goods/services

5. Quantity and value

6. Tax rate and amount

7. Total invoice value

Sales Tax Return Components

Part I: Tax Payable

- Total sales value

- Taxable sales

- Exempt sales

- Zero-rated sales

- Sales tax collected

Part II: Input Tax

- Local purchases

- Imports

- Services received

- Input tax claimed

Part III: Adjustments

- Previous period adjustments

- Bad debts

- Other adjustments

Part IV: Net Payment/Refund

- Tax payable (Output tax - Input tax)

- Or refund claim

Input Tax Claims

Eligible Input Tax

- Tax on business purchases

- Tax on imports for business

- Tax on business expenses

- Tax paid on services used in business

Documentation Required

- Original tax invoices

- Proof of payment

- Goods received notes

- Import documents

Common Rejection Reasons

- Invoices from unregistered suppliers

- Missing or incomplete invoices

- Personal expenses claimed

- Expired invoices (older than 6 months)

Special Scenarios

Zero-Rated Supplies

- Exports

- Supplies to export-oriented units

- International transport

- Certain food items

**Benefit:** Can claim input tax refund

Exempt Supplies

- Basic food items

- Educational services

- Healthcare services

- Financial services

**Limitation:** Cannot claim input tax

Input Tax Apportionment

If you have both taxable and exempt supplies:

- Calculate percentage of taxable supplies

- Claim input tax proportionally

- Maintain separate records

Late Filing Penalties

Return Filing Penalty

- PKR 5,000 for first day of default

- PKR 1,000 per day thereafter

- Maximum PKR 50,000

Late Payment Penalty

- **Default surcharge:** 18% per annum

- Calculated from due date to payment date

- Compound interest applicable

Additional Consequences

- Account may be blocked

- Cannot claim input tax

- Legal proceedings

- Business disruption

Best Practices

1. Maintain Proper Records

- Digital record-keeping

- Sequential invoice numbering

- Regular backup

- Organized filing system

2. Reconcile Regularly

- Monthly reconciliation of sales and purchases

- Match tax collected vs tax paid

- Verify input tax claims

- Review exempt vs taxable sales

3. File on Time

- Set internal deadlines (2-3 days before due date)

- Don't wait until last day

- Allow time for technical issues

- Keep payment confirmation

4. Stay Updated

- Monitor FBR notifications

- Track rate changes

- Update invoice formats

- Attend tax seminars

5. Professional Assistance

- Complex calculations

- Input tax optimization

- Audit representation

- Refund claims

Common Mistakes to Avoid

1. **Claiming Ineligible Input Tax**

- Personal expenses

- Blocked items (vehicles, entertainment)

- Purchases from unregistered persons

2. **Invoice Issues**

- Missing STRN

- Incorrect tax rates

- Missing required information

- Duplicate invoice numbers

3. **Timing Errors**

- Claiming input tax before payment

- Delaying invoice recording

- Missing filing deadlines

4. **Calculation Errors**

- Wrong tax rates applied

- Mathematical mistakes

- Incorrect apportionment

Sales Tax Audits

Audit Selection Criteria

- Random selection

- Risk-based profiling

- Specific information

- Sector-wide audits

Required Documents

- Sales and purchase registers

- Tax invoices and receipts

- Bank statements

- Stock records

- Previous returns

Audit Rights

- Right to be heard

- Right to representation

- Right to appeal

- Right to documentation

Refund Claims

Eligibility

- Zero-rated supplies

- Excess input tax

- Refund for exporters

- Special refund schemes

Process

1. File return claiming refund

2. Submit supporting documents

3. FBR processing (typically 45 days)

4. Bank account credit or refund certificate

Documentation

- Export documents

- Proof of input tax payment

- Bank statements

- Audited accounts (for large claims)

Conclusion

Sales tax compliance requires attention to detail, proper documentation, and timely filing. Understanding deadlines and requirements helps avoid penalties and maintain smooth business operations.

Abbas & Co provides comprehensive sales tax services including registration, return filing, reconciliation, and audit representation. Contact us to ensure your sales tax compliance is handled professionally.

Abbas & Co Team

The team at Abbas & Co brings years of expertise in accounting, taxation, and business compliance. We're dedicated to helping businesses succeed through professional financial services and expert guidance.

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