What "theoretical loss" means

Theoretical loss = Total wagered × House edge

Actual results are noisy. Theoretical loss isn't.

A player who wagers 50,000 on a 4% edge game has a theoretical loss of 2,000. Their actual result that month might be −6,400 or +1,900. The casino can't budget against that. It can budget against 2,000, because across all its players the actual converges on the theoretical with high precision.

So the whole commercial layer sits on top of the stable number:

• Affiliate commission is a percentage of net gaming revenue, which is derived from it
• VIP rakeback is quoted as a percentage of it
• Cashback rates are quoted as a percentage of it
• Player value for acquisition modelling is calculated from it

When an operator says a player is "worth 400 a month," it means theoretical loss of 400. Nobody in the industry means actual.

→Where the house edge itself comes from: House edge, explained with real numbers.

You wager 25,000 across a month:

Your theoretical loss is 782. That's the pool every rebate you receive is calculated from.

Note the blackjack line. 4,000 wagered producing 20 of theoretical loss — 16% of your turnover generating 2.6% of your rebate base. Low-edge games are cheap to play and nearly worthless for earning anything back.

Same month, three possible outcomes:

Identical rebate in every case. You won 1,100 and still got paid. You lost 2,400 and got exactly the same, not more.

This is why turnover-based cashback is structurally better than a loss rebate. A loss rebate pays nothing in the first row. Over enough months, the winning sessions you'd have earned nothing on add up to a meaningful amount of forfeited rebate.

→How casino cashback actually works covers the full chain.

Two related terms turn up in the same contracts.

GGR — gross gaming revenue. Actual wagers minus actual payouts. What the casino really won, before costs. Converges on theoretical loss over volume, differs from it in any given period.

NGR — net gaming revenue. GGR minus deductions: bonus costs, payment processing, gaming duty, sometimes platform and licensing fees.

Affiliate deals are almost always struck on NGR, not GGR, and never on theoretical loss directly. This matters, because deductions can be substantial — a "50% revenue share" on NGR after 20–30% of deductions is materially less than 50% of what the casino won.

That's part of why the cashback rate reaching a player is well below what the headline commission percentage might suggest. The money passes through two subtractions before it gets to you.

When an operator advertises a rate, work out which base it applies to:

"40% cashback" — almost always 40% of theoretical loss. On a 4% edge game, that's 1.6% of turnover, or 16 per 1,000 wagered.

"1% cashback" — almost always 1% of turnover. On any game, that's 10 per 1,000 wagered.

The 40% offer sounds forty times better and is worth 60% more. Convert both to return per 1,000 wagered and the comparison becomes trivial.

Return per 1,000 = 1,000 × House edge × Rate     (if quoted on theoretical loss)
Return per 1,000 = 1,000 × Rate                   (if quoted on turnover)

→Every partner converted to that unit: Best crypto casino cashback rates — compared.