Bank of Ireland UK vs TSB Bank plc

Bank of Ireland UK has a blended long-term credit rating of A+ and TSB Bank A+, the same grade. Bank of Ireland UK and TSB Bank hold separate banking licences, so eligible savings with each are protected by the FSCS up to £120,000 per person separately. In the CMA's August 2026 service quality survey, 54% of TSB Bank's personal customers would recommend it for overall service; Bank of Ireland UK is not one of the brands surveyed. In the FCA's latest complaints figures, Bank of Ireland UK received 1.89 banking complaints per 1,000 accounts and TSB Bank 3.05.

B
Bank of Ireland UK
Credit Rating
A+
NEW
Normalized Score

78 / 100

Agencies

Moody's, Fitch

Outlook
Stable
Last Updated

24 October 2026

VS
T
TSB Bank plc
Higher Rated
Credit Rating
A+
Normalized Score

80 / 100

Agencies

Moody's

Outlook
Stable
Last Updated

15 October 2026

B
Bank of Ireland UK
Credit Rating
A+
NEW
Score
78 / 100
Agencies

Moody's, Fitch

Outlook
Stable
T
TSB Bank plc
Higher Rated
Credit Rating
A+
Score
80 / 100
Agencies

Moody's

Outlook
Stable
Swipe to compare
Rating History Comparison
AA-A+AA-BBB+BBBBBB-BB+Jan 2016Oct 2026Bank of Ireland UK — 15 Jan 2016: BBB-Bank of Ireland UK — 15 Jun 2019: BBBBank of Ireland UK — 15 Jun 2021: BBB+Bank of Ireland UK — 15 Mar 2023: A-Bank of Ireland UK — 24 Oct 2026: A+A+TSB Bank plc — 15 Jan 2016: A-TSB Bank plc — 10 Jul 2026: BBB+TSB Bank plc — 15 Oct 2026: A+A+
Bank of Ireland UKTSB Bank plc
Bank of Ireland UK
TSB Bank plc
Comparison Summary
Metric Bank of Ireland UK TSB Bank plc Difference
Credit Rating A+ A+ Same grade
Normalized Score 78 80

-2 points

Agencies Moody's, Fitch Moody's Different
Outlook Stable Stable Same
Trend
NEW
Different
Investment Grade Yes Yes Same

Service record and deposit protection

MeasureBank of Ireland UKTSB Bank
Would recommend for overall service (CMA survey, Aug 2026, personal, GB) not surveyed 54% (rank 15 of 17)
Would recommend for online and mobile banking not surveyed 65% (rank 15 of 17)
Banking complaints per 1,000 accounts (FCA) 1.89 (2026 H1, group figure) 3.05 (2026 H1)
Complaints upheld by the bank 39% 52%
Major operational or security incidents reported to the FCA, last 12 months 0 (to Jun 2026) 3 (to Jun 2026)
Banking licence (FCA reference) 512956 191240

Bank of Ireland UK and TSB Bank hold separate banking licences, so eligible savings with each are protected by the FSCS up to £120,000 per person separately.

Survey: CMA / Ipsos, share of each brand's own customers who would recommend it (full rankings). Complaints: FCA firm-level data for the licence holder (all banks). Incidents: figures each bank must publish under the FCA's BCOBS 7 rules (all banks). A service score is about experience, not financial strength.

Frequently asked questions

Is Bank of Ireland UK or TSB Bank financially stronger?

Bank of Ireland UK has a blended long-term credit rating of A+ and TSB Bank A+, the same grade. A credit rating is an agency's opinion of a bank's ability to repay its debts, not a guarantee, and it says nothing about service.

Do Bank of Ireland UK and TSB Bank share FSCS protection?

Bank of Ireland UK and TSB Bank hold separate banking licences, so eligible savings with each are protected by the FSCS up to £120,000 per person separately.

Which has better customer service, Bank of Ireland UK or TSB Bank?

In the CMA's August 2026 service quality survey, 54% of TSB Bank's personal customers would recommend it for overall service; Bank of Ireland UK is not one of the brands surveyed. In the FCA's latest complaints figures, Bank of Ireland UK received 1.89 banking complaints per 1,000 accounts and TSB Bank 3.05. A service score reflects customers' experience, not the bank's financial strength.

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