Bank Rate is the Bank of England’s main interest-rate tool. Changes in the rate influence borrowing, saving and investment across the economy, but they do not reach every household or business at the same speed.

Mortgages feel changes differently
Borrowers on variable or tracker mortgages can feel rate changes relatively quickly. Fixed-rate borrowers may not notice until they refinance, which means the effect of monetary policy is spread over time rather than arriving all at once.
Savers and businesses respond too
Higher rates can improve returns on some savings accounts while making loans and investment more expensive. Businesses may delay expansion or hiring when financing costs rise, while lower rates can encourage borrowing and spending.
The aim is inflation, not mortgage pricing
The Monetary Policy Committee sets Bank Rate to meet the inflation target. Mortgage costs, savings rates, exchange rates and business finance are channels through which that decision affects demand across the economy.
Because these channels operate with delays, a rate decision can continue affecting households and firms long after the announcement itself.