Banking Guide: UK Overdrafts Explained — Arranged vs Unarranged, Fees, Interest Rates and Your Rights in 2026
An overdraft is one of the most common forms of short-term borrowing in the UK, yet many current account holders do not fully understand how overdraft charges work or what protections they have. Whether you dip into the red occasionally to cover a bill or rely on an arranged overdraft as a regular financial cushion, the rules governing overdraft pricing changed dramatically in April 2020 — and the landscape continues to evolve in 2026. With the Bank of England base rate now at 3.75% following successive cuts from the 5.25% peak in August 2023, you might expect borrowing costs across the board to have fallen. Yet typical arranged overdraft rates at major UK banks remain stubbornly high, often between 35% and 40% EAR (Equivalent Annual Rate). Understanding why, and knowing your alternatives, can save you hundreds of pounds a year. This guide covers everything you need to know about UK overdrafts in 2026: the difference between arranged and unarranged overdrafts, how the FCA's pricing reforms work in practice, what the major banks charge, your rights if something goes wrong, and practical steps to reduce or eliminate your reliance on overdraft borrowing. If you are new to banking in the UK, our current accounts guide is a useful companion read.