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A clear invoice helps a client understand what they owe and when payment is due. This checklist separates an ordinary payment request from a regulated tax invoice. Using a template alone does not establish tax compliance.
What Every Invoice Needs
Whether or not you are registered for sales tax, every invoice should include a handful of basics: your business name and address, a unique invoice number and consistent records, the date of issue, a clear description of what was sold or the service performed, the quantity and unit price, and the total amount due. If you are registered for sales tax, Section 23 of the Sales Tax Act adds a few more requirements.
If You Are Registered for Sales Tax
- Your sales tax registration number, or STRN.
- The buyer’s name, address and registration number for business to business sales.
- The value of the supply excluding tax.
- The sales tax amount, shown as a separate line.
- The total including tax.
For regulated tax invoices, check section 23 of the current Sales Tax Act, current notifications and any electronic-invoicing obligations. Required fields and buyer identification depend on the transaction. Do not assume a simple PDF or retail receipt satisfies every case.
The Standard Sales Tax Rate
Section 3 of the Sales Tax Act, as amended through 30 June 2026, states an 18% general federal rate for taxable supplies and imports, subject to exceptions. Services can fall under provincial or other regimes. Confirm the applicable rate and authority for your supply before entering tax in the tool.
Do You Actually Need to Charge Sales Tax
Sales-tax registration and the treatment of the supply determine whether tax can or must be charged. An NTN is not an STRN. Do not collect federal sales tax merely because the template has a tax field. Check registration obligations and exemptions with the relevant authority or adviser.
Invoicing Foreign Clients as a Freelancer
For overseas clients, clearly state the service, currency, payment terms and your business details. Keep the invoice and bank remittance records. Export income, withholding and sales-tax treatment depend on the service, registration, tax year and applicable law; an overseas customer does not automatically make a transaction tax-free.
This guide does not prescribe an IT-export withholding rate or a banking-channel percentage. Check the current Income Tax Ordinance, FBR guidance and any PSEB eligibility conditions for your own situation.
FBR Digital Invoicing
FBR’s prescribed electronic-invoicing system involves integration and reporting requirements for covered registered persons. A PDF created with GoZapTools is a standalone document: this tool has no FBR integration, unique FBR invoice number or reporting connection. Use compliant integrated software when those requirements apply.
Frequently Asked Questions
Do I need an NTN just to send someone an invoice? Not for a basic invoice on a small transaction, but you generally need an NTN to operate formally as a business or freelancer, file taxes, and work with clients who require your tax details for their own records.
What happens if I forget to add GST on a taxable invoice? If you are registered for sales tax and issue an invoice on a taxable supply without charging GST, you are still liable to account for that tax to FBR, it does not simply go away. It is best corrected before filing rather than discovered later.
Can I invoice in a foreign currency? Yes, invoices to foreign clients are commonly issued in US dollars or another foreign currency. For your own domestic tax records you would typically convert the amount to Pakistani rupees at the applicable exchange rate.
Do sole proprietors need a separate business bank account? Keep clear business records and check your bank’s account requirements and applicable reporting rules. This invoice tool does not determine those obligations.
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Official references
Current Sales Tax Act (sections 3 and 23); FBR digital invoicing FAQs; Income Tax Ordinance. Reviewed 8 October 2026. Verify later amendments for your transaction.