The Lottery CFO · free tool

Where does each £1 of your draw go?

Put in your entry price, sales, prize and costs. You get your own split of every pound, your break-even number of entries and your margin, straight away. No sign-up.

This tool does maths only. It doesn't tell you whether your draw is legal or how it's taxed, and it isn't legal or tax advice. It runs in your browser: nothing you type is stored or sent.

Your draw

Example figures are filled in. Replace them with yours.

Sales
£
#
Prize
£
Payments
%
£
#
Running costs (per draw)
£
£
£
Good causes (optional)
%
VAT (optional)

Your £1, split

Before VAT. Tick "Count VAT on paid entries" to include it. Other taxes aren't included.

margin per £1 –
Sales
–
Margin
–
Break-even entries
–
–

Want your real numbers checked?

For 18 years I ran the finances of a European national lottery operator. I do a fixed-fee, written commercial review of your draw model: prize fund, costs, margin, VAT and the risks in the numbers. No calls needed. It's a commercial review, not legal or tax advice. Prices and details.

ivan@thelotterycfo.com

If you email me, I use your address only to reply, and delete it after 12 months if no work follows.

About VAT: HMRC's current view is that paid entries to prize draws with a free entry route are standard-rated at 20%. That view is being challenged at the First-tier Tribunal (heard October 2026; a decision is expected in spring 2027). Ask your accountant how it applies to you.

The Lottery CFO never promotes gambling and carries no gambling affiliate links.

Have a numbers question?

Email me. First reply within 1 working day. All work is done in writing.

ivan@thelotterycfo.com