TSB overdraft: the real cost
Among the priciest overdrafts on the board.
What 30 days overdrawn costs
| Amount overdrawn | Cost over 30 days |
|---|---|
| £100 | −£2.80 |
| £250 | −£7.00 |
| £500 | −£13.99 |
39.9% EAR · No interest-free buffer
How the £250 figure is worked out
- Amount charged interest
- £250
- Daily rate from 39.9% EAR
- 0.0920%
- Cost over 30 days
- −£7.00
#14 of 15 cheapest at £250 · cheapest right now: First Direct →
Rate history
No changes since tracking began 28 August 2026.
Sources
- TSB’s published overdraft rate page · checked 28 August 2026
Common questions
How much does the TSB overdraft cost?
At £250 overdrawn for 30 days, TSB charges −£7.00 at its advertised 39.9% EAR. At £100 it’s −£2.80; at £500, −£13.99.
Does TSB have an interest-free buffer?
No. Interest applies from the first pound of an arranged overdraft.
Is TSB the cheapest overdraft?
Not at £250 overdrawn: it ranks #14 of 15. The cheapest right now is First Direct. The full leaderboard has every bank.