Charting VAT and quarterly tax so it stops being a surprise
VAT causes trouble because the money passes through your account and briefly looks like yours. A chart that separates it from income fixes most of that illusion.
Collected versus deductible, per quarter
Two bars side by side for each quarter, with the net payable labelled between them. That is the entire chart, and it is enough to know what is owed at any point in the quarter.
Track it monthly even if you file quarterly
The filing is quarterly, but the liability accrues daily. A monthly update means the number on filing day is one you have already seen twice.
Keep it out of the revenue chart
VAT collected is not revenue. If it appears in your income charts, every growth number you look at is inflated by whatever rate applies to you.
Watch the year-over-year shape
Comparing this Q3 to last Q3 rather than to Q2 removes seasonality. A rising net payable with flat revenue usually means deductible expenses have fallen, which is worth investigating.
Start from a revenue-to-profit waterfall →Rules and rates differ by country and situation, so treat the chart as visibility rather than advice — but visibility is most of what is missing.
Frequently asked
Should VAT appear in my revenue charts?
No. VAT collected is money held on behalf of the tax authority, not income. Including it inflates every revenue and growth figure you look at.
How often should I update a VAT chart?
Monthly, even when filing quarterly. The liability builds continuously, and a monthly check means filing day holds no surprises.