Exhibit 99.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

F-3 333-222022

S-8 333-160220

S-8 333-85208

S-8 333-115726

S-8 333-120980

S-8 333-130558

S-8 333-153673

S-8 333-171227

S-8 333-174641

S-8 333-179967

of our reports dated 14 February 2019 (except for the retrospective revisions to the reportable segments as discussed in Note 4 and changes in reporting standard as discussed in Note 7, as to which the date is 30 April 2019) with respect to theconsolidatedfinancialstatementsoftheRoyalBankofScotlandGroupplc,includedinthiscurrentReportonForm6-K.

Ernst & Young LLP

London, United Kingdom

30 April 2019