Branch 5 Access Bonus Cash ISA

Easy access · Cash ISA · Checked 3 Nov 2026, 10:00

3.35%

AER, falling to 2.30% after 1 year

Not above inflation: CPI 3.5%, September 2026

What you'd earn

If you put in (£)

You'd earn about £670.00 in 1 year, before any tax.

Worked out from the AER, with the bonus ending on time. Variable rates can change.

The conditions in plain English

Access: Up to 5 withdrawals per tax year.
Minimum: £1
Interest paid: Once a year
Manage by: Branch
Who can apply: Branch only. Includes 1.05% bonus for 12 months; 2.30% after.
Where we read it: Principality Building Society's own page, 3 November 2026

Full details

Juno hasn't read a Summary Box for this account yet. Principality Building Society's own page has the full terms and conditions.

Who holds your money

Deposit-taker: Principality Building Society
Incorporated in: United Kingdom
Regulated: Yes, by the Prudential Regulation Authority and Financial Conduct Authority (FRN 155998)
Protection and disputes: Financial Services Compensation Scheme and Financial Ombudsman Service
Capital: Capital and reserves of £799m at 31 December 2025, for its group (latest published accounts).

FSCS protection

Up to £120,000 per person is protected across everything you hold with Principality Building Society.

Check your total protection

Rate history

No change since tracking began.

Don't miss the end date

The bonus ends after 1 year, when the rate drops. Add a reminder two weeks before. It goes straight into your calendar; we keep nothing.

Go to Principality Building Society to apply

You'll apply on Principality Building Society's own website. Principality Building Society may pay us if you open this account; that doesn't affect its position in our results.