Best Pay by Phone Bill Casinos in the UK 2026

What Is a Pay by Phone Bill Casino?

A pay by phone bill casino is an online gambling site that lets you fund your account using your mobile phone number. Instead of entering your debit card or bank details, you provide your number, confirm the payment via a text message, and the amount is either added to your next monthly phone bill or deducted from your pay-as-you-go credit.

Because the payment goes through your mobile network rather than your bank, you never share any financial information with the casino. It’s one of the most private and secure ways to deposit online.

There is one important limitation to be aware of: you cannot withdraw your winnings back to your phone bill. You’ll need to add a separate payment method — such as a debit card, PayPal, or a bank transfer via Trustly — to cash out.

Boku vs. Payforit vs. Fonix — What’s the Difference?

When you see a casino advertising “pay by phone bill”, it will be using one of a handful of payment processors to handle the transaction. The three most common in the UK are Boku, Payforit, and Fonix. Here’s how they compare:

In practice, the experience is very similar across all three. The main difference is that Fonix sometimes allows slightly higher per-transaction limits. The casino will determine which provider it uses — you don’t choose.

Which UK Mobile Networks Are Supported?

All major UK mobile networks support pay by phone bill casino deposits:

• EE — Supported by all three providers.
• O2 — Supported by all three providers.
• Vodafone — Supported by all three providers.
• Three — Supported by all three providers.

If you’re on a smaller virtual network (MVNO) like Sky Mobile, Giffgaff, or iD Mobile, support can vary. These networks run on the infrastructure of the big four, but some have restrictions on premium-rate billing. If you’re unsure, check with your network before depositing.

How Do Pay by Phone Bill Casinos Work?

Put simply, pay by phone bill casinos let you deposit real money into your casino account using your mobile phone. The amount is either:

• Deducted instantly from your prepaid mobile balance, or
• Added to your next monthly phone bill if you’re on a contract.

Behind the scenes, secure third-party services like Boku and Payforit handle these payments. While you won’t interact with them directly, they’re the technology powering the transaction between your mobile provider and the casino.

The process is simple and secure. Once you enter your deposit amount, you’ll receive an SMS asking you to confirm the payment. You’ll either  reply to this message or enter a code on the payment portal to complete the deposit — an essential step for preventing unauthorised transactions.

Whether you’re using a monthly contract or a pay-as-you-go phone, the process works the same — but the source of the charge differs. Contract users will see the charge on their next bill, while PAYG users need to have enough credit available at the time of the deposit.

Benefits of Paying by Phone Bill

So, why opt to deposit by phone bill? Here are some of the main reasons. 

• Convenience – Forget about fiddling around with 16-digit card numbers and expiry dates. At phone bill deposit casinos, all you need is a phone number and some signal. It really is that simple. There’s no need to create an extra account either, which keeps things nice and straightforward;
• Speed – Every casino player wants instant deposits, and that’s exactly what you get when you pay by phone bill. There’s no waiting around for your transaction to settle, so you can play straight away;
• Secure – Pay by phone bill is one of the most secure casino payment options, primarily because you don’t need to enter any sensitive bank account information. Pay by phone bill providers and phone networks also have strict security measures, so you can rest assured you’re in safe hands;
• Availability – Pretty much all the major UK phone network providers support pay by phone bill, including O2, Vodafone, EE, Three and Virgin Mobile. People with a BT landline can also use the service, meaning that virtually everyone can take advantage of this payment method to play their favourite games.

How to Deposit at a Pay by Phone Casino

Depositing at a pay by phone casino takes less than two minutes. Here’s exactly what to do:

Step 1: Create Your Account Choose a casino from our recommended list and complete the registration process. You’ll need to provide your name, address, date of birth, and email address.

Step 2: Go to the Cashier Once you’re logged in, navigate to the deposit section. This is usually labelled “Deposit”, “Cashier”, or “Banking”.

Step 3: Select Pay by Phone Look for the pay by phone option. Depending on the casino, this might be listed as “Pay by Mobile”, “Boku”, “Payforit”, or “Fonix”.

Step 4: Enter Your Deposit Amount Choose how much you want to deposit. Most casinos have a minimum of £10 and a maximum of £30 per transaction.

Step 5: Enter Your Mobile Number Type in your UK mobile number. Double-check it’s correct before proceeding.

Step 6: Confirm via SMS You’ll receive a text message with a verification code. Enter this code on the casino’s deposit page to confirm the payment.

Step 7: Start Playing Your funds will appear in your casino account instantly. The charge will appear on your next phone bill or be deducted from your prepaid balance.

Reviews of the Best Phone Bill Casinos

Want to know more about the best pay by phone casinos in the UK? Here’s what our experts have to say about our top picks.

Drawbacks of Pay by Phone Casino Deposits

While pay by phone bill is a secure and hassle-free way to deposit, it’s not without a few limitations. Here are some key drawbacks to consider before choosing this payment method:

Limited Deposit Amounts

Most phone bill casinos cap your daily deposits at £30. For casual players, this limit encourages responsible gambling — but if you’re a high roller or prefer to deposit larger sums, this method may feel restrictive.

Minimum deposits vary from site to site, but they’re typically around £5 to £10. Always check the casino’s cashier page or FAQs to confirm the specific limits.

No Withdrawal Option

You can’t withdraw your winnings using pay by phone. This is a deposit-only method, so you’ll need to select an alternative withdrawal method such as:

• e-Wallets (like PayPal, Skrill, Neteller)
• Debit cards
• Bank transfers

Limited Availability

While popular services like Boku, payViaPhone, Siru, Zimpler, and Payforit are widely supported, not all UK casinos offer pay by phone bill. This makes it less universally available than debit cards or e-wallets.

The good news? Our expert recommendations only feature top-rated sites that do support mobile billing — making it easier for you to find the right one.

Can You Claim a Bonus When Depositing by Phone?

This is one of the most common questions we get, and the honest answer is: it depends on the casino.

Some operators allow pay by phone bill deposits to qualify for their welcome bonus, while others explicitly exclude this payment method from their promotional terms. Before you deposit, always read the bonus terms and conditions carefully — look for a section on “excluded payment methods”.

The casinos in our recommended list have been specifically selected because they do allow pay by phone deposits to qualify for their welcome offers. However, bonus terms change frequently, so it’s always worth double-checking before you play.

When you find a bonus that is eligible, the most common types you’ll encounter are:

Matched Deposit Bonuses: The casino matches your deposit with bonus funds, up to a set amount. For example, a 100% match up to £50 means a £30 phone bill deposit would give you £60 in total to play with.

Free Spins: A set number of free spins on a specific slot game. These are usually credited instantly or within 24 hours of your deposit.

Always pay attention to the wagering requirements (how many times you need to play through the bonus before withdrawing), the win cap (the maximum you can withdraw from bonus winnings), and any game restrictions.

Try Out a New Pay by Phone Casino

At Compare.bet, we always keep close tabs on what’s happening in the world of online gambling, which  includes reviewing the best new pay by phone bill casinos. As they’re fresh on the scene and keen to grow their customer base, many new online casinos will pull out the stops with welcome bonuses, offering lucrative matched deposits and player-friendly wagering requirements.

Slots You Can Deposit by Phone Bill

Online slots are hugely popular with UK players, so it probably won’t come as a surprise to learn that the best pay by phone bill casinos are jam-packed with slot titles. These range from old school 3-reelers through to the latest video slots covering almost every imaginable theme. You can also try your luck on progressive jackpot slots, which have the potential to award prizes into the millions. 

Some of the top slots available at online casinos with phone bill payments include:

• Sweet Bonanza by Pragmatic Play – Match juicy fruits and sugary treats for a chance to win over 21,100x your bet in this 6×5 medium variance slot.
• Vikings Go Berzerk by Yggdrasil – Join a band of Norse warriors in this 5×4 slot, where exciting features like sticky wilds and multipliers can supercharge your wins. 
• Age of the Gods by Playtech – With four progressive jackpots up for grabs, it’s no surprise this five-reel slot is one of the most popular titles in the Ancient Greece genre. 
• Book of Dead by Play’n GO – The best-known instalment in the Rich Wilde series thanks to its frequent inclusion in free spins offers, Book of Dead takes players on an adventure to uncover lost relics. 
• Starburst by NetEnt – The list wouldn’t be complete without including the GOAT of the slots world, Starburst. Here, players must match gems on ten win-both-ways paylines to score a payout. 

Withdrawals at Pay by Phone Casinos

You cannot withdraw to your phone bill. This method is strictly for deposits only, and the system is not set up to receive funds since it’s linked to your mobile credit or monthly billing account.

But don’t worry — casinos that accept phone bill deposits offer plenty of alternative withdrawal methods, including:

• e-Wallets like PayPal, Skrill, and Neteller (fastest option)
• Debit Cards (Visa, Mastercard)
• Bank Transfers

For the fastest withdrawals, we recommend using an e-wallet. They typically process payouts within 24 hours once approved by the casino.

Pay by Phone vs. Other Casino Payment Methods

Whether you’re withdrawing your casino balance or pay by phone simply isn’t the right fit for your deposits, here are some of the other methods accepted by top casinos in the UK.

Since you’ll need a second payment method to withdraw your winnings, it’s worth knowing how the alternatives compare. Here’s a quick overview of the most popular options at UK casinos:

For most pay by phone players, PayPal or Trustly are the best withdrawal options. Both are fast, free, and widely supported at UK casinos.

Are Pay by Phone Bill Casinos Safe?

Pay by phone casinos are one of the safest ways to deposit online. Here’s why:

• No Bank Details Required
  Your card or bank account isn’t shared with the casino at any point.
• SMS Confirmation
  Every transaction requires two-step SMS verification to stop unauthorised use.
• UKGC Licensing
  All our recommended sites are fully licensed by the UK Gambling Commission, which enforces strict player protection rules.
• Built-In Deposit Limits
  With daily deposit caps (typically £30), this method encourages responsible gambling and keeps your budget in check. With that said, keep in mind you’re essentially gambling on credit if you charge the deposit to your monthly bill, so be sure to set a spending cap with your mobile operator.

Responsible Gambling Tips

The low deposit limits of pay by phone billing can act as a natural spending control, but they’re not a substitute for the responsible gambling tools that every UKGC-licensed casino is required to offer. We strongly encourage all players to make use of these tools:

Deposit Limits: Set a daily, weekly, or monthly cap on how much you can deposit. Once you’ve reached your limit, you won’t be able to add more funds until the period resets. This is one of the most effective tools for keeping your gambling within budget.

Reality Checks: These are on-screen reminders that appear at regular intervals (e.g., every 30 or 60 minutes) to let you know how long you’ve been playing and how much you’ve spent. They’re a simple but effective way to stay aware of your gambling habits.

Session Limits: Similar to reality checks, session limits allow you to set a maximum amount of time you can spend gambling in a single session.

Time-Outs: If you feel you need a short break from gambling, a time-out allows you to block yourself from the casino for a period ranging from 24 hours to six weeks. This is a good option if you’re feeling stressed or chasing losses.

Self-Exclusion: If you feel your gambling is becoming a problem, self-exclusion allows you to block yourself from a casino for a minimum of six months. You can also register with GamStop (gamstop.co.uk), which will self-exclude you from all UKGC-licensed online gambling sites simultaneously.

Support Organisations:

• GambleAware (begambleaware.org) — Free advice and support for anyone affected by problem gambling.
• GamCare (gamcare.org.uk) — Free counselling, support, and information. Helpline: 0808 8020 133.
• Gambling Therapy (gamblingtherapy.org) — Free online support for people affected by problem gambling.
• GamStop (gamstop.co.uk) — Free self-exclusion service covering all UKGC-licensed sites.

Try Out a Phone Bill Casino

Now we’ve covered all the bases for phone bill deposit casinos, it’s over to you. Have a look through our list of the UK’s top pay by phone bill casinos, including mobile casinos, and compare the welcome bonuses on offer. If you like the look of any, follow our link to the registration page and you can use your phone number to deposit!