Intraday credit and collateral at the central bank

Intraday credit is the short-term borrowing a bank takes from the central bank during the settlement day, repaid before the day ends, so that it can settle payments even when its balance is temporarily insufficient. It exists because payment flows are lumpy: a bank may have to pay out a large amount in the morning before its expected receipts arrive in the afternoon, and without intraday credit it would have to hold a huge idle balance all day. Every major central bank offers intraday credit, and it is a core part of how real-time gross settlement systems work. The European Central Bank, the Bank of England and the Federal Reserve all provide it, each under its own rules. Why intraday credit matters is that it is the safety valve that prevents a temporary timing gap from becoming a settlement failure. A bank that cannot settle a payment because its balance is short will see that payment sit in the queue, and if the queue backs up, the whole system slows down. Intraday credit lets the bank settle now and repay later, when its receipts arrive. The cost is the collateral it must pledge: the central bank does not lend unsecured. The bank pledges securities, typically government bonds, and the central bank applies a haircut, lending less than the market value of the securities to protect itself against a fall in their price. The parties are the borrowing bank, the central bank that lends, and the collateral management system that holds and values the pledged securities. The bank maintains a collateral pool, a set of securities pledged to the central bank, and the central bank sets a borrowing limit equal to the value of the pool after haircuts. When the bank needs intraday credit, it draws against the pool automatically: the settlement system debits its account beyond its balance, and the overdraft is covered by the collateral. At the end of the day the bank must repay the overdraft, either from its receipts or by borrowing overnight, which carries an interest charge. If it cannot repay, the central bank may keep the collateral, which is a serious event. In practice the intraday credit limit is set by the collateral pool and the haircut schedule. Suppose a bank pledges EUR 100 million of German government bonds with a 2 percent haircut, EUR 50 million of French government bonds with a 3 percent haircut, and EUR 30 million of high-quality corporate bonds with a 10 percent haircut. The lendable value is EUR 98 million plus EUR 48.5 million plus EUR 27 million, which is EUR 173.5 million. That is the maximum intraday credit the bank can draw. If its peak intraday usage is EUR 150 million, it has EUR 23.5 million of headroom. If its usage rises to EUR 180 million, the settlement system will reject further payments until more collateral is pledged or receipts arrive. What happens when the collateral is insufficient is the critical failure mode. The bank cannot draw more intraday credit, so its payments queue up, and the queue may cause gridlock for other banks. The treasury team must then either pledge more collateral, which takes time to settle into the pool, or delay its own payments, which breaks customer commitments. In a stressed market the value of the collateral itself may fall, which reduces the borrowing limit at exactly the moment the bank needs it most. This is why central banks stress-test the collateral pool and why banks hold a buffer of high-quality liquid assets above their expected peak usage. The operational and accounting implications are that the treasury team must forecast its peak intraday usage every morning, the collateral management team must ensure the pool is sufficient, and the operations team must monitor usage against the limit through the day. On the ledger, intraday credit is an overdraft on the central bank settlement account, and it must be repaid before the end of the day, so the end-of-day balance must be positive. The accounting team must also track the haircut: the securities remain on the bank balance sheet, but they are encumbered, which means they cannot be sold or pledged elsewhere, and that encumbrance must be reported. For a business analyst, intraday credit is a set of requirements around limits, alerts and reporting. You must specify the collateral eligibility rules, the haircut schedule, the borrowing limit calculation, the alert thresholds (for example at 80 percent and 95 percent of the limit), the automatic actions when the limit is reached, and the end-of-day repayment procedure. You must also specify what the system does if the collateral value falls during the day and the borrowing limit drops below the amount already drawn. A common gap in requirements is the failure to specify the intraday usage report, which the treasury team needs every day to manage its collateral. Takeaway: intraday credit turns collateral into settlement capacity, and the haircut is the price of that conversion. Further reading: the ECB intraday credit and auto-collateralisation documentation; the Bank of England Sterling Monetary Framework for the intraday liquidity facility; the Federal Reserve intraday credit policy and the PSR policy on daylight overdrafts. Last reviewed 7 November 2026.