Balances with the Bank of England are the reserve balances that commercial banks hold in accounts at the UK central bank. They are used to settle payments between banks in central bank money and to manage day-to-day liquidity.
In practice, these balances are the safest settlement asset in the domestic financial system because they are liabilities of the central bank.
Core Mechanics
When Bank A’s customer pays Bank B’s customer, the payment ultimately requires a transfer of reserves from Bank A’s reserve account to Bank B’s reserve account (either directly or through netting/clearing arrangements that eventually settle in reserves).
Reserve balances also interact with monetary policy:
- Central banks can influence overnight rates by changing the policy rate paid on reserve balances and by managing system liquidity.
- Large-scale asset purchases (quantitative easing) typically increase aggregate reserves in the banking system, which can change the operating framework for short-term rates.
Why It Matters
Balances at the central bank matter for:
- Payment-system stability: settlement in central bank money reduces counterparty credit risk in payments.
- Liquidity management: banks need enough reserves to handle intraday and overnight flows.
- Monetary transmission: the way reserves are supplied and remunerated affects money market rates.