What is CHAPS?

CHAPS (Clearing House Automated Payment System) is the UK's same-day, high-value payment system, settling GBP payments individually and irrevocably in central bank money. 

It is operated by the Bank of England and sits at the top of the UK payment hierarchy: every payment settles with immediate finality, and there is no minimum or maximum transaction value. CHAPS is the system of choice for property purchases, corporate treasury flows, and wholesale financial transactions where settlement certainty on a specific day is non-negotiable.

CHAPS represents around 0.5% of UK total payment volumes but 92% of total sterling payment values.That ratio reflects its purpose: low volume, extremely high value, with each payment carrying legal and financial weight that makes finality essential.

How CHAPS works

CHAPS is a real-time gross settlement (RTGS) system, meaning each payment settles individually and in full as it is submitted, rather than being batched and netted at the end of the day. Settlement takes place across accounts held by participants at the Bank of England. Once a payment settles, it cannot be reversed by the sending institution.

The CHAPS operating day runs Monday to Friday, excluding UK bank holidays. The core settlement window is 06:00 to 18:00, though individual financial institutions set their own customer-facing cut-off times within that window. Payments submitted before the bank's internal deadline will typically reach the beneficiary the same business day. CHAPS does not operate on weekends or public holidays, which is one of the key practical differences from Faster Payments, which runs 24/7/365.

Participants access CHAPS either as Direct Participants, who hold a settlement account at the Bank of England and connect directly to the system, or as Indirect Participants, who route payments through a Direct Participant acting as their correspondent. 

There are over 35 organisations that access CHAPS directly; these serve several thousand Indirect Participants. Non-bank payment service providers have been admitted as Direct Participants in recent years, following the Bank of England's expansion of RTGS access.

What CHAPS is used for

CHAPS processes two broad categories of payment:

• Wholesale and financial market flows are the largest component by value. These include interbank funding transfers, securities settlement, foreign exchange transactions, and large corporate treasury movements. Financial institution payments (pacs.009 message type) were 24% of all CHAPS payments by volume but represented 73% of the total value settled in 2025. 
• Retail high-value payments cover transactions that individuals and businesses cannot safely route through lower-value rails. Property purchases are the most common example: when a homebuyer's solicitor transfers the completion funds to the seller's solicitor, that payment typically travels over CHAPS because it needs to arrive and be confirmed on a specific day. Large vehicle purchases, commercial contract settlements, and time-critical tax payments are also common retail uses.

In 2025, the average value of all CHAPS payments was £1.8 million, and the median value was £4,586, with 94% of CHAPS payments for £1 million or less. The median being so much lower than the mean reflects the wide distribution: the majority of individual retail CHAPS payments are relatively modest, while a small number of very large wholesale transactions pulls the average up substantially.

CHAPS vs. Faster Payments

For GBP payments, the choice between CHAPS and Faster Payments comes down to value, timing, and finality requirements. Both are widely available through UK financial institutions, but they serve different needs:

• Operating hours: Faster Payments runs 24/7/365; CHAPS operates on business days within set hours only
• Transaction limit: Faster Payments is capped at £1 million per payment; CHAPS has no upper limit
• Settlement model: CHAPS settles gross and in real time; Faster Payments settles net at defined points across the RTGS day
• Finality: Both are irrevocable once sent, but CHAPS settlement in central bank money carries a specific legal weight for high-value transactions requiring absolute certainty
• Cost: CHAPS carries higher per-transaction fees than Faster Payments, which is why low-value and consumer payments almost always route through Faster Payments instead

For amounts up to £1 million where timing flexibility exists, Faster Payments is generally the more economical and accessible option. For amounts above £1 million, or for any transaction where same-business-day settlement in central bank money is contractually required, CHAPS is the appropriate rail.

Scale and recent developments

In 2024, CHAPS settled over £87 trillion in payments, averaging over £344 billion each working day, with an average of around 208,000 payments per day. In 2025, CHAPS volumes grew 1.1% to a record 53.3 million payments, and total value increased 7.3% to £93.9 trillion, averaging £371.3 billion daily. 

CHAPS migrated to the ISO 20022 message format in June 2023, aligning with SWIFT and other major international rails. The richer structured data enabled by ISO 20022 supports more automated payment reconciliation downstream and improves the quality of data available for sanctions screening and compliance checks. The Bank of England also completed its RTGS Renewal Programme in April 2025, delivering a new core settlement engine and ledger infrastructure underpinning CHAPS.

Why CHAPS matters for fintechs

For fintechs and payment service providers operating in GBP, CHAPS is the primary rail for any use case involving large, time-critical sterling transfers. Key considerations include:

• Direct vs. indirect access: Most fintechs access CHAPS via a bank sponsor acting as a Direct Participant. The Bank of England has expanded access criteria, but direct participation still requires meeting strict operational and financial resilience standards
• Interplay with Faster Payments: Platforms processing GBP across a mix of retail and corporate use cases typically need access to both rails. Faster Payments handles the volume; CHAPS handles the high-value, deadline-critical flows
• Cross-border GBP: International GBP transfers typically arrive or depart via SWIFT and settle their GBP leg through CHAPS. Understanding CHAPS cut-off times is essential for correspondent banking and cross-border settlement timing
• Authorised Push Payment (APP) fraud rules: From October 2024, mandatory reimbursement rules for APP fraud apply to CHAPS payments, with a reimbursement limit of £85,000 per claim. This affects how fintechs route and monitor high-value push payments

For platforms already handling ACH, SEPA, or wire transfers across multiple currencies, GBP flows will almost always involve either CHAPS for high-value settlement or Faster Payments for real-time lower-value transfers, and frequently both.