UKGC RTS 12B: New Gross Deposit Limit Rules Take Effect 30 June 2026 — What UK Players Need to Know

For years, two players could set what looked like the same £500 monthly deposit limit on two different UK gambling sites and end up able to spend wildly different amounts. One site counted every pound paid in. The other quietly subtracted withdrawals, so a run of winnings could reopen the tap long before the month was out. Same label, different rules. From 30 June 2026, that inconsistency ends.

On that date, a revised version of RTS 12B — part of the Gambling Commission's Remote Gambling and Software Technical Standards — comes into force. It settles a question that has caused genuine confusion: what, exactly, is a “deposit limit”? The short answer the regulator has landed on is that a deposit limit must be a gross limit. It caps the total you pay in over a set period, full stop, with no offsetting for money you take back out.

This is a technical change with a very practical edge. If you use deposit limits as a budgeting tool — and the Commission's own research suggests a large share of players who set limits treat them exactly that way — the new rules make the figure on screen mean what most people assume it already means. Here is what is changing, why, and what you should check on the sites you use.

What is changing on 30 June 2026?

The Gambling Commission's new RTS 12B in plain English

The Remote Gambling and Software Technical Standards are the rulebook for how online gambling systems must be built and operated. RTS 12 is the section dealing with financial limits — the tools that let a customer cap their own spending. RTS 12B is the part of that section being rewritten.

The core of the revised standard is a single requirement: as a minimum, a UK-licensed gambling system must offer customers a gross deposit limit. A gross limit measures one thing only — the amount deposited into the account across the chosen period, whether that is a day, a week or a month. Withdrawals do not feed back into the calculation. Once you have paid in the amount you set, you have reached the limit, regardless of whether you have since cashed out winnings.

The Commission has also tightened the language operators may use. After 30 June 2026, only a limit that meets the gross definition can be presented and labelled as a “deposit limit”. Other tools — net deposit limits, loss limits, stake limits — remain permitted, but they must be clearly labelled as what they are and given a different name. The phrase “deposit limit” can no longer be stretched to cover a net calculation.

It is worth being precise about the strength of the rule, because an earlier version of the proposal went further. During consultation the Commission floated making gross limits the default option. The final wording, published in the consultation response, settled on a slightly different test: gross limits must be offered as a minimum, and they must be given equal prominence to any other limit type an operator chooses to display. So a site can still present a net limit alongside a gross one — it simply cannot bury the gross option or dress a net option up in the “deposit limit” label.

Why the regulator pushed for a single definition

The mess RTS 12B is cleaning up dates back to changes made in autumn 2023 to the Licence Conditions and Codes of Practice and to the RTS. After those changes, the Commission noticed something it had not intended: operators were interpreting “deposit limit” inconsistently. Some kept to the long-standing gross approach. Others introduced net deposit limits that subtracted withdrawals, which had the effect — intended or not — of letting a winning customer deposit more than the headline figure suggested.

For a consumer-protection tool, that is a real problem. A limit only works if the person setting it understands what it does. A player who sets £300 a month as a hard ceiling on their spending, and who then sees that ceiling silently rise because a few bets came in, is not being protected by the tool they chose. The Commission ran a supplementary consultation in spring 2025 to fix the definition, reviewed the responses, and confirmed the revised RTS 12B as the result. The deadline for the new elements to take effect is 30 June 2026.

Gross vs net deposit limits — the £500 example that sums it up

How a “gross” limit counts your money in

The cleanest way to see the difference is with a single month and a single number. Say you set a £500 monthly deposit limit.

Under a gross limit, the system tracks deposits and nothing else. You pay in £200 on the 3rd, £200 on the 12th and £100 on the 20th. That is £500. You have hit your limit, and you cannot deposit again until the monthly period resets — even if, in between, you withdrew £400 of winnings. The withdrawals are irrelevant to the count. The limit did its job: it stopped you depositing more than the amount you decided on.

Why “net” limits could understate your spend

Now run the same month under a net limit. You deposit £200, £200 and £100 — £500 in — but along the way you withdraw £300 of winnings. A net calculation subtracts that £300, so the system records only £200 of “limit used”. On paper you still have £300 of headroom, and you can keep depositing.

The figures tell the story:

The net version is not dishonest in itself, and some players may genuinely want a limit that behaves that way. The problem is the label. A customer who reads “deposit limit”and pictures a cap on money paid in is describing a gross limit. If the tool quietly behaves as a net limit, the customer's mental model and the system's behaviour have come apart — and that gap tends to widen exactly when someone is chasing a loss or riding a win, the moments when a limit matters most. RTS 12B closes the gap by reserving the term for the gross version.

What happens once you hit the cap (and the 24-hour cooling-off)

When you reach a gross deposit limit, the system must block any further deposits. That block stays in place until one of two things happens: the limit period restarts on its normal schedule, or you actively choose to increase the limit.

Raising a limit is deliberately not instant. RTS rules require a cooling-off period of 24 hours before any increase takes effect, and the increase only goes through if you take a fresh, positive action to confirm it once those 24 hours have passed. You cannot tap a button mid-session and have a higher limit a moment later. The point of the delay is to take the heat out of the decision — to make sure a limit increase is something a customer has slept on, rather than an impulse during a losing run. Reducing a limit, by contrast, can take effect straight away. The friction is applied in one direction only, and on purpose.

What UK online casino and sportsbook customers will see

New default settings on registration

The most visible change comes at sign-up. New customers on UK-licensed sites are already meant to be offered limit-setting tools prominently as part of registration. From 30 June 2026, where a deposit limit is presented, it must be the gross version, and it cannot be shown as less prominent than any rival limit type. Expect clearer wording on the registration screen explaining that the figure is a cap on money paid in.

Existing players: what operators must communicate

If you already hold an account, you are not being asked to do anything, but your operator does have work to do behind the scenes. Sites that previously ran net deposit limits must bring their tools into line — either by converting the relevant tool to a gross calculation or by relabelling it so it is no longer called a deposit limit. Operators should communicate any change that affects how your existing limit behaves. If you receive a message from a site you use about updates to limit tools, it is worth reading rather than dismissing, because the same £500 you set last year could count differently afterwards.

Reading the small print — labels you should look for

After 30 June, the wording on screen becomes a reliable signal. A tool labelled “deposit limit” is, by definition, gross — a cap on deposits with no offset for withdrawals. A tool that offsets withdrawals must be called something else, such as a “net deposit limit”, and must say so plainly. Loss limits and stake limits remain separate tools with their own labels. If you see “deposit limit” without qualification, you can now trust it means the straightforward thing.

How RTS 12B fits with the wider 2026 UK gambling reform

RTS 12B is not a standalone tweak. It is one piece of the broadest overhaul of British gambling regulation since the Gambling Act 2005, and it lands in the same year as several other significant changes. Our guide to the UK gambling rule changes in 2026 sets out the full picture.

Affordability checks rollout (Stage 1 by Q3 2026)

The Commission's affordability — or financial vulnerability — check framework is being phased in across licensed online operators. Stage 1 uses “frictionless”checks drawing on shared credit-reference data once a customer's deposits reach a defined threshold; early pilot data indicated that around 95% of these checks resolved without the player noticing any interruption. Stage 2 applies enhanced checks to higher-spending accounts and can ask for documentary evidence such as bank statements. Full compliance with the framework is expected by the third quarter of 2026. A gross deposit limit and an affordability check do different jobs — one is chosen by the player, the other applied by the operator — but together they form a fuller picture of how much money is moving and whether it is sustainable. We cover the detail in our explainer on UKGC affordability checks and slot stake caps.

Slot stake caps and Remote Gaming Duty at 40%

Two further changes have already taken effect. Statutory stake caps now apply to online slots: a maximum of £5 per spin for players aged 25 and over, and £2 per spin for those under 25. And from 1 April 2026, Remote Gaming Duty nearly doubled, rising from 21% to 40% of gross gaming revenue, with no phase-in period. The tax change is aimed at operators rather than players, but it reshapes the commercial backdrop against which all of these consumer rules now operate — something we unpack in our coverage of the Remote Gaming Duty rise to 40%.

The bigger picture for player protection

Read together, the 2026 package points in one direction: making the cost of online gambling visible and harder to lose track of. Stake caps limit how fast money can go down on slots. Affordability checks flag spending that looks unsustainable. And RTS 12B makes sure that the budgeting tool players themselves reach for — the deposit limit — actually measures what they think it measures. None of these stops anyone gambling. They are about removing the ambiguity that makes it easy to spend more than intended.

Practical checklist for UK players from 30 June

A few simple checks will tell you where you stand once the new rules are live. First, log in to any UK-licensed site you use and find your deposit limit setting — confirm the figure and the period it covers. Second, check the label: if it says “deposit limit”, it is now gross; if it offsets withdrawals it must be named differently, so read carefully. Third, if you previously relied on a net limit as a budget, recalculate, because the same number may now stop you sooner. Fourth, remember that lowering a limit is immediate while raising one takes 24 hours plus a confirmation step — plan around that, not against it. Finally, treat any operator message about limit-tool changes as worth opening. If you want to step back further, our responsible gambling resources set out the wider toolkit.

FAQ

Will my current deposit limit reset on 30 June 2026?

The rules do not require existing limits to be wiped. The numerical figure you set should carry over. What can change is how that figure is counted — if your operator previously ran a net calculation, the same limit may behave as a stricter gross cap afterwards. Check the setting once the change is live so there are no surprises.

Can operators still offer net deposit limits?

Yes. Net limits, loss limits and stake limits remain permitted tools. What operators can no longer do is call a net tool a “deposit limit”. From 30 June 2026 that term is reserved for gross limits only, and any other limit type must be clearly and separately labelled.

How do I increase my limit and how long is the cooling-off?

You request the increase in your account settings. It does not take effect immediately: a 24-hour cooling-off period must pass, and at the end of it you must take a fresh action to confirm you still want the higher limit. If you do nothing, the increase does not happen. Reducing a limit, by contrast, applies straight away.