One thing before we start: this is not tax advice. Thresholds move, deadlines move, and your situation is your own — confirm the details with your tax consultant, because the rules change. What follows is the plain-language version of why this topic keeps coming up at shop counters.
The direction of travel
For years, FBR has been moving sales-tax reporting away from paper summaries and toward structured, invoice-level digital records. The pace shifts and the specifics shift, but the direction has been steady. For a registered retailer or wholesaler, the practical meaning is this: your sales tax return is increasingly built from your individual invoices, not from a monthly total you write at the bottom of a page.
What Annexure C is, roughly
Annexure C is the part of the sales tax return where sales invoices are listed. In plain terms: what you sold, who you sold it to where that applies, and the tax you charged — line by line. Your consultant knows the current column-by-column requirements, and those requirements are theirs to track. The point that matters for you is simpler: the annexure is assembled from your invoices, so the quality of your invoices decides how painful the return is.
This is also why “digital invoicing” is a more useful phrase than it first sounds. It does not primarily mean a prettier bill. It means the bill exists as structured data — each line, each tax amount, each invoice number — rather than as ink that a person has to type up later.
Why this is hard with a hand-written register
A khata is built for running totals, and it is genuinely good at them. But a return wants invoice-level detail: numbers in sequence, the tax on each line, withholding where it applies on business-to-business sales. Reconstructing that at month end from carbon copies and memory is where the evenings go, and it is where transcription mistakes creep in — a bill copied twice, a bill missed, a tax amount recalculated slightly differently the second time.
What Polaris produces
Polaris approaches this from the billing side. If the invoice is right at the moment of sale, the paperwork at month end is an export rather than a reconstruction. Concretely:
- Invoices are GST-aware at 18%, with inclusive or exclusive pricing set per product — the tax on each line is calculated when the bill is made, not reconstructed later.
- Withholding tax is 5 fields on the invoice itself, filled in as you make a business-to-business bill.
- Tax Summary, Tax Register, and WHT Summary — 3 of the 52 reports Polaris runs across 8 categories — cover the period at a glance.
- The FBR Annexure C export comes out as a CSV with all 13 columns under your STRN, built from the bills you already made during the month. You still file it — Polaris does not talk to FBR yet.
And to be equally clear about the boundary: you still file it — Polaris does not talk to FBR yet, and it is not a substitute for your consultant. It produces the export your consultant works from. The division of labour is that the software keeps the invoice-level record all month, and the human who knows the current rules turns it into a filed return.
What to do this month
If you are registered, ask your consultant one specific question: what invoice-level detail does my return need from me? Then look at whether your current billing actually captures it as you sell, or whether someone rebuilds it at month end. If it is the second, that rebuild is the cost you are paying every month — and it is the specific cost Polaris was built to remove. If you want to see what the Annexure C export looks like from real bills, message us on WhatsApp and we will show you.