CHAPS vs. BACS: What’s the difference?

Key takeaways

• CHAPS is a same-day payment system run by the Bank of England. It’s usually used for high-value, time-sensitive transfers, and there’s no upper limit.

• BACS processes Direct Debits and Direct Credits over a three-day cycle. That makes it a good choice for routine business payments like payroll and supplier invoices.

• For international payments, Airwallex offers faster transfers at interbank FX rates, with 95% arriving the same day or within hours.

When you’re moving money between UK bank accounts, you’ll usually use one of two payment systems: CHAPS or BACS. CHAPS is built for same-day, high-value payments where timing matters. BACS is for routine, batch payments that take three working days to clear. If you pick the wrong one, it can cost your business time, money, or both.

In this guide, we’ll explain how CHAPS and BACS work and when to use each one. We’ll also show how Faster Payments fits in. Finally, we’ll cover what to do when your payments need to cross borders.

What is a CHAPS payment?

CHAPS stands for Clearing House Automated Payment System. It’s a bank-to-bank payment system run by the Bank of England. It settles payments in real time on the same day you send them. Think of it as the express lane for UK payments — you pay more, but the money’s guaranteed to arrive that day.

Unlike what you might read elsewhere, there’s no official minimum amount for CHAPS payments. However, many banks set their own limits (often around £10,000). They do this to discourage people from using CHAPS for smaller transfers. There’s no upper limit, though, which is why CHAPS is the standard choice for high-value deals like buying property.

CHAPS payments are irrevocable. Once you submit a payment and it’s processed, it’s very hard to cancel or reverse it. This finality is a feature, not a bug. It gives the recipient certainty that the funds are theirs. CHAPS also has wide reach. There are over 30 direct banking participants, and more than 5,000 financial institutions across the UK can make and accept CHAPS payments. CHAPS uses SWIFT messaging infrastructure for domestic sterling transfers.

Common use cases for CHAPS

Businesses usually use CHAPS when a payment is both high-value and time-critical:

• Property completions and real estate transactions

• Large one-off supplier payments

• Tax payments (VAT, corporation tax)

• Legal settlements and court-ordered payments

• Emergency same-day transfers where delays would cause problems

In each case, the key point is the same. The recipient needs to know the money will arrive today, and the amount is large enough to justify the higher fee.

CHAPS fees and cut-off times

CHAPS payments usually cost £20 to £35 per transfer. The exact fee depends on your bank and whether you send the payment online or in-branch. Because it’s one of the more expensive ways to move money in the UK, it’s best to save CHAPS for times when same-day settlement really matters.

Cut-off times vary by bank and by how you send the payment. For in-branch payments, you usually need to submit by 3pm. For online banking, cut-offs are often around 5pm. If you miss the cut-off, the payment will go the next business day. CHAPS only runs on business days — not weekends or bank holidays — so you’ll need to plan ahead if you’re working to a deadline.

What is a BACS payment?

BACS stands for Bankers Automated Clearing Services. It’s the workhorse of UK business payments and processes billions of transactions each year. If you’ve been paid your salary, paid a bill by Direct Debit, or paid a supplier, there’s a good chance BACS handled it.

BACS is now run by Pay.UK. It handles two types of payment: Direct Debits (where the payee pulls funds from your account) and Direct Credits (where you push funds to someone else’s account). BACS processes payments in batches over a three-day cycle. That keeps costs low, but it also means you need to plan ahead.

The upper limit for BACS payments is £20 million per transaction. That covers almost any routine business payment. Also, because BACS is built for bulk processing, the cost per transaction is very low — often free or just a few pence. When you set up BACS payments, you’ll need the recipient’s sort code and account number.

Direct Debits vs Direct Credits

To choose the right BACS option, it helps to understand how these two payment types differ:

Direct Debit: The payee pulls funds from the payer’s account. This is how most repeat bills work. You set up a Direct Debit mandate, and the company takes payments when they’re due. Examples include:

• Utility bills (gas, electricity, water)

• Subscription services and memberships

• Mortgage and loan repayments

• Insurance premiums

Direct Credit: The payer pushes funds to the payee’s account. This is how businesses usually pay out money. Examples include:

• Salary and wage payments

• Supplier invoices

• Pension contributions

• Tax refunds from HMRC

The BACS three-day processing cycle

BACS payments follow a clear three-day cycle:

Day 1 (Input): You submit your payment file to BACS. This is where you tell the system who you’re paying, how much, and from which account.

Day 2 (Processing): BACS processes and sorts all the payment instructions it’s received. It matches payers and payees across participating banks.

Day 3 (Entry): Funds are credited to the recipient’s account and debited from your account at the same time. This is when the money actually moves.

So, if you want someone to get the money on Friday, you need to submit the payment by Wednesday. BACS doesn’t run on weekends or bank holidays, so you should include those in your plan too.

Key differences between CHAPS and BACS

When you choose between CHAPS and BACS, you’re really balancing speed, cost, and what the payment needs to do. Here’s how they compare, with Faster Payments included as a third option:

Here’s a simple rule you can use:

• Use CHAPS for same-day, high-value payments where timing and finality matter

• Use BACS for routine, recurring payments where the three-day cycle is fine

• Use Faster Payments for everything in between

Speed and processing times

Speed is often what decides it. CHAPS gets the money there the same day, as long as you send it before the cut-off. BACS takes three working days. That works for planned payments, but it’s risky if you’re up against a deadline. Faster Payments sits in the middle, with near-instant transfers and no CHAPS-level fee.

For businesses, speed isn’t just about convenience. If you pay suppliers quickly, you may get early payment discounts. If there are delays in payroll processing, it can harm employee trust. And in property deals, missing a completion deadline can break an entire chain.

Costs and fees

CHAPS costs £20 to £35 per transfer. That can add up fast if you’re sending several high-value payments. BACS is basically free for most businesses, since the cost per payment is tiny. Faster Payments is in between. It’s usually free for personal accounts, and it often has a small fee for business accounts.

The trade-off is simple. If same-day settlement is worth £25 to £35 to you, use CHAPS. If it isn’t, BACS or Faster Payments can work for much less.

Payment limits

CHAPS has no upper limit. That makes it the only option for very large transfers, such as multi-million-pound property deals or corporate acquisitions. BACS has a £20 million limit per transaction, which covers most business needs. Faster Payments is usually capped at £1 million, although some banks set lower limits.

If you often send more than £1 million, you’ll probably need CHAPS or BACS. For most day-to-day business payments, Faster Payments is enough.

What is Faster Payments and how does it compare?

Faster Payments is the UK’s real-time payment system, run by Pay.UK. When you make a “bank transfer” in your online banking app, it’s often sent through Faster Payments. The system sends payments in seconds to two hours. It runs 24/7, including weekends and bank holidays, and it’s usually free or low cost.

You can think of Faster Payments as the middle option between CHAPS and BACS. You get near-instant transfers without paying £25+ each time. However, you also get a lower payment limit than either system (usually £1 million, but it depends on your bank).

When to use Faster Payments instead of CHAPS or BACS

Faster Payments is often the best choice when:

• You need speed but the amount is under £1 million

• You want to avoid CHAPS fees for a same-day transfer

• You need to pay outside business hours (evenings, weekends, bank holidays)

• You’re making a one-off payment that doesn’t suit BACS’s batch processing approach

• You’re refunding a customer or moving money between your own accounts

On the other hand, you should use CHAPS when the payment is above Faster Payments limits, or when you need the guaranteed finality you get from Bank of England settlement. You should use BACS when you’re sending bulk or recurring payments (like payroll) and the three-day cycle is fine, especially when the lower per-payment cost matters.

How Airwallex helps with international payments

CHAPS, BACS, and Faster Payments are great for UK payments. However, once your business needs to send or receive money across borders, these systems don’t apply. Cross-border payments involve other currencies, correspondent banking networks, and often higher fees.

Airwallex offers a faster, lower-cost way to send money internationally. Instead of sending payments through several correspondent banks (and paying each one), we use local payment rails in each country to move money more directly. As a result, 95% of transfers arrive the same day or within hours. You also get interbank exchange rates, which can save you up to 80% on FX fees compared with traditional banks.

This means you can use BACS for UK payroll and Airwallex for paying international suppliers — and manage both in one financial platform. With Global Accounts, you get local bank details in 20+ currencies. So, you can get paid like a local business in markets around the world.

Why businesses choose Airwallex for cross-border transfers

Here’s what you get with an Airwallex Business Account:

• Interbank FX rates: Convert currencies at rates usually reserved for large financial institutions, helping you avoid foreign transaction fees

• 95% same-day arrival: Most international transfers arrive the same day or within hours

• Global Accounts in 20+ currencies: Get paid using local bank details, so customers can pay you like a local business

• No transfer fees: Send international payments with no per-transaction charges

• 150,000+ businesses served globally: Join companies already using Airwallex to simplify their international finances

If you’re looking to compare business accounts or make it easier to manage both UK and international payments, Airwallex can help.

FAQs

Why use CHAPS instead of BACS?

Use CHAPS when you need guaranteed same-day settlement for a high-value payment, such as a property purchase or a large supplier invoice. CHAPS costs more (£20–£35 per transfer, compared with pennies for BACS). Still, you’re paying for speed and finality. The recipient knows the funds are theirs that same day, which is important for time-sensitive deals. If the three-day BACS cycle works for your payment, you’ll spend less by using BACS instead.

What are the disadvantages of CHAPS?

The main downsides of CHAPS are the higher fees (£20–£35 per transfer), strict cut-off times, and how hard it is to cancel a payment after you’ve sent it. If you miss your bank’s cut-off (usually 3pm to 5pm), your payment won’t be sent until the next business day. Also, because CHAPS settles in real time, there’s very little time to stop a payment if you make a mistake. CHAPS only runs on business days too, so you can’t use it on weekends or bank holidays.

Can you cancel a CHAPS or BACS payment?

CHAPS payments are very hard to cancel once you submit them, because they settle in real time. By the time you notice a problem, the money has usually already arrived. With BACS, you can sometimes cancel a payment before the cycle finishes. For example, if you spot the mistake on Day 1 or early on Day 2, your bank may be able to stop it. However, once a BACS payment reaches Day 3 and clears, you’ll need to contact the recipient to arrange a refund. If you’re setting up a new business account, it’s worth learning your bank’s cancellation rules for each payment type.

Is CHAPS the same as SWIFT?

No. CHAPS and SWIFT are different systems with different jobs. CHAPS is a UK domestic payment system for same-day sterling transfers, run by the Bank of England. SWIFT is a global messaging network that banks use to send payment instructions for international transfers. CHAPS does use SWIFT messaging infrastructure to send instructions between banks. However, CHAPS itself only handles UK domestic payments. For international transfers, you’d usually use SWIFT-based correspondent banking or an alternative provider like Airwallex.