Three Numbers That Confuse Almost Every Filer
On the Data tab of your Sales Tax Return, you’ll see three separate sections – Sales Tax Credit, Sales Tax Debit, and Payable – each with its own Calculate button. They sound similar but represent three different things, and mixing them up is one of the most common sources of confusion when filing.
Sales Tax Credit: What You’re Owed
Sales Tax Credit is your input tax – the tax you’ve already paid on business purchases, imports, and other eligible inputs during the tax period. This figure is built up from your Annex-A (Purchases) and Annex-B (Imports) claims, plus any Annex-F balance carried forward from a previous period. Click “Calculate” under Sales Tax Credit to have IRIS total this up from your submitted annexures.
Sales Tax Debit: What You Owe
Sales Tax Debit is your output tax – the tax you’ve charged on your own sales during the period. This is driven primarily by your Annex-C (Sales) figures. Click “Calculate” here to see IRIS total the tax you’ve collected from your customers on taxable supplies.
Payable: The Net Result
Payable is simply Debit minus Credit – what you actually owe FBR (or, if Credit exceeds Debit, what carries forward as a refundable or adjustable balance) after your input tax is set off against your output tax. Click “Calculate” here once Credit and Debit are both finalized, since Payable depends on both being accurate first.
Head-wise Payable: The Breakdown
Once your overall Payable figure is calculated, Head-wise Payable breaks it down by the specific tax heads it applies to – useful for understanding exactly what you’re paying and matching it against your CPR when you attach payment.
Why the Order Matters
Because Payable is calculated from Credit and Debit, and Credit/Debit are pulled from your annexures, working through your return in the right order matters:
- Complete and submit Annex-C (Sales) and Annex-A (Purchases) – plus Annex-B if you have imports.
- Calculate Sales Tax Credit.
- Calculate Sales Tax Debit.
- Calculate Payable.
- Check Head-wise Payable for the breakdown.
Calculating Payable before your annexures are complete will give you a figure that doesn’t reflect your actual position – always recalculate after any change to an annexure. See our full Sales Tax return filing guide for the complete step-by-step process.
Common Mistakes We See Here
- Calculating Payable before submitting Annex-C or Annex-A. The figure will be wrong or incomplete, since it depends on those annexures being finalized first.
- Not recalculating after editing an annexure. If you go back and change a purchase or sales entry, re-run Calculate on Credit, Debit, and Payable again – IRIS doesn’t always refresh these automatically.
- Assuming a high Payable figure is an error without first checking whether all eligible input tax was actually claimed under Annex-A/Annex-B – a missed purchase invoice directly inflates what you owe.
FAQ
What if my Sales Tax Credit is higher than my Debit?
That generally means you paid more input tax than you collected in output tax for the period – the excess typically carries forward as a balance (see Annex-F, Balance Credit) rather than being paid out immediately.
Do I need to manually calculate these figures myself?
No – IRIS calculates them automatically based on your submitted annexures. You just need to click “Calculate” on each section after your annexure data is complete.
Why does my Payable figure keep changing?
It’s directly derived from your Credit and Debit figures – if you edit a purchase or sales invoice after an initial calculation, Payable needs to be recalculated to reflect the change.
