What is CCP clearing?

Central counterparties play a key role in today’s financial markets, but most corporate treasurers don’t interact with them directly. A central counterparty steps in between banks and dealers during trades, guaranteeing each side if the other defaults. After the 2008 financial crisis, regulators encouraged more derivatives and repo transactions to go through these clearing houses.

This change has now reached short-term cash markets, including the repo market where many treasurers place surplus cash. This guide explains what CCP clearing means, how clearing houses manage risk, and how centrally cleared repo compares to other secured options. It also covers why central clearing is important for corporate cash and its limitations.

What is CCP clearing?

Clearing happens after a trade is agreed but before it’s settled. During this stage, each side’s obligations are confirmed and managed. In CCP clearing, a central counterparty steps in between the two original parties. It acts as the buyer to every seller and the seller to every buyer, so each firm deals with the CCP instead of with each other.

This setup replaces many separate exposures with just one netted exposure to a well-regulated institution. If one party fails to pay or deliver, the CCP still completes the trade with the other side. The CCP uses collateral and pooled member resources to fund this guarantee.

Is a clearing house the same as a CCP?

People often use the terms interchangeably, especially in exchange-traded markets. Technically, a clearing house is any organisation that processes and reconciles trades between parties. A CCP is a clearing house that also takes on counterparty risk and guarantees settlement. Every CCP is a clearing house, but not all clearing houses act as central counterparties.

How a CCP works

Novation

When a trade is accepted for clearing, the CCP replaces the current contract with two new ones. Both the seller and the buyer now have a contract with the CCP. This means neither side is exposed to the other. This legal process is called novation.

Multilateral netting

Since every trade involves the same counterparty, the CCP can net each member’s positions across all trades. If a bank owes £500 million to one member and is owed £450 million by another, it only needs to settle the £50 million difference. Netting reduces the number of settlements and lowers the exposures on bank balance sheets. It also makes it easier for banks to meet regulatory capital requirements, which helps them offer better pricing in cleared markets.

Initial and variation margin

Members provide initial margin when they open a position. This amount is set to cover possible losses if a member defaults. The CCP then marks positions to market at least once a day and collects variation margin from members whose positions have lost value. In repo markets, margin calls can happen several times a day, which helps keep losses small and prevents exposures from growing unnoticed.

What happens if a clearing member defaults?

Every CCP has a default waterfall, which is the order in which it uses its resources to cover losses. First, the defaulting member’s own margin and default fund contribution are used, so the firm that caused the loss pays first. Next, the CCP uses some of its own capital, often called skin in the game, to make sure its interests are aligned with its members’.

If losses exceed these layers, the CCP uses default fund contributions from the remaining members. It can also ask for more contributions and use any remaining capital. This multi-tiered approach is meant to handle a single default without affecting the wider market, though a very severe event could still challenge it.

CCP clearing in the UK

The UK is one of the world’s biggest clearing centres and is home to major CCPs like LCH Ltd, ICE Clear Europe, and LME Clear. LCH’s RepoClear service handles a large share of gilt and European government bond repo. EU regulators consider LCH Ltd systemically important to the EU’s financial system.

Who supervises UK CCPs?

The Bank of England oversees UK CCPs and applies international standards set by global regulators. After Brexit, the UK adopted the EU’s European Market Infrastructure Regulation as UK EMIR. The Financial Services and Markets Act 2023 now lets the Bank create its own binding rules for CCPs, gradually replacing EU law.

The push to clear more gilt repo

Recent periods of market stress have drawn more attention to the gilt repo market. In April 2025, the Bank of England released a feedback statement that didn’t require clearing, as respondents cited cost and access concerns. In September 2025, the Bank of England released a discussion paper on making the market more resilient, which included ideas for more central clearing of gilt repo.

Instead, the Bank is looking at ways to encourage voluntary clearing, such as giving non-bank firms wider access. It also plans to study the risks of relying on just one UK CCP for gilt repo. A more thorough update, possibly with policy proposals, is expected in early 2027.

How centrally cleared repo compares with bilateral and tri-party repo

In a repo agreement, one party lends cash in exchange for collateral and agrees to reverse the trade at a set price and date. Our guide to repurchase agreements explains the details. The main differences between repo types are who you deal with and how you manage the collateral.

In bilateral repo, the cash lender deals directly with the borrower and both manage the collateral themselves. In tri-party repo, an independent agent like Clearstream or Euroclear holds the collateral for the lender. The lender still faces one borrower, but the cash is backed by collateral worth more than the loan amount.

In centrally cleared repo, the counterparty risk shifts from the borrower to the CCP. Collateral is still marked to market and margined, and the CCP’s default waterfall supports the trade. For a cash lender, this means dealing with one regulated institution and its pooled resources instead of just one bank.

Why CCP clearing matters for corporate treasurers

Most corporate treasurers won’t become clearing members, but central clearing still affects their choices. It impacts the pricing banks can offer and the security available for surplus cash.

A different source of counterparty risk

An unsecured bank deposit exposes a treasurer to one bank's credit risk, and any balance above the £120,000 Financial Services Compensation Scheme limit is not protected. Secured lending through repo adds collateral, and central clearing adds a further layer of protection through margin and shared default resources. For organisations with strict counterparty limits, this can expand where cash can be placed without increasing single-bank concentration. Our article on why diversification matters for corporate cash explains how these limits affect allocation.

Access has been the barrier

Direct CCP membership is meant for banks and large dealers, with strict capital and operational requirements. Buy-side firms usually access cleared repo through sponsored models, where a member bank acts as their agent. Only a few banks offer sponsorship, and respondents to the Bank of England’s discussion paper identified this as a major obstacle. For corporate treasurers, access to cleared repo has been even more limited.

Accessing cleared repo through TreasurySpring

TreasurySpring has partnered with Eurex Clearing and Clearstream to make centrally cleared repo available to corporate cash investors in GBP, EUR, and USD. Our One+ cash investments offer access to over-collateralised, centrally cleared euro repo with next-day liquidity. Investors use the same platform as for our other FTFs, without needing clearing membership or extra operational work. Our guide to secured FTFs explains how collateral works across our secured products.

The limits of central clearing

Central clearing lowers counterparty risk, but it does not eliminate it. Risk is concentrated in a few CCPs, making each one systemically important. If a CCP had problems, the effects could spread widely, so regulators require recovery plans and resolution arrangements.

Margin models can also increase stress, since CCPs may raise requirements when markets are volatile and members have less cash. Usually, only high-quality government bonds and cash are accepted as collateral, and clearing involves fees that someone must pay. Treasurers should weigh these trade-offs against the protection clearing offers.

Putting CCP clearing in context

CCP clearing puts a regulated institution between buyers and sellers, supported by margin and a layered default waterfall. It’s now central to derivatives and government bond repo, with UK policymakers looking at ways to expand its use. 

For treasurers, centrally cleared repo is another option for securing surplus cash, with its own mix of protection and limits. If you want to learn how centrally cleared repo could fit into your cash strategy, contact our team today. 

For anyone who can't tell the difference between their COP and their CCP, we've introduced our Treasury & Cash Investment Glossary.

*TreasurySpring’s blogs and commentaries are provided for general information purposes only, and do not constitute legal, investment or other advice.