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3 min readBlockingBank of England banking taxonomy 4.1.1Updated 11 November 2026

The aggregate nominal outstanding amount shall be the sum of the nominal outstanding values for each maturity bucket (columns 010 to 060) (MR02.01.01.01, Bank of England check boe_b4003)

A blocking check on the MREL Resources - nominal outstanding value template (MR02.01.01.01), in the MREL resources (MRL001) return.

Line4 Check runs it on the MREL resources (MRL001) return, proven on test files, check by check: the same outcome on all eight test files of that return.

Check your file for this ruleWhat to do if it fails

The rule in plain words

The aggregate nominal outstanding amount shall be the sum of the nominal outstanding values for each maturity bucket (columns 010 to 060)

In each of 15 rows (listed below) of MREL Resources - nominal outstanding value (MR02.01.01.01): "Current reporting aggregate (nominal outstanding value)" (column 070) must equal the sum of "Less than one year (nominal outstanding value)" (column 010), "One year and greater, less than two years (nominal outstanding value)" (column 020), "Two years and greater, less than five years (nominal outstanding value)" (column 030), "Five years and greater (nominal outstanding value)" (column 040), "Perpetual (nominal outstanding value)" (column 050) and "Calculated amount that does not have maturity (nominal outstanding value)" (column 060).

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02Add up the parts in your return and compare the result with the total.
  3. 03If they differ, a part is missing, a value sits in the wrong cell, or the total is out of date.
  4. 04The Bank of England allows a small rounding difference, worked out from the decimals each value is reported with.
  5. 05It runs only when your filing indicators mark MR02.01.01 as reported.
  6. 06This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

MREL Resources - nominal outstanding value (MR02.01.01.01)

Rows

  • R005AT1 capital instruments that qualify to count towards MREL
  • R030Tier 2 capital instruments that qualify to count towards MREL
  • R050MREL contractually or statutorily subordinated eligible liabilities (senior non-preferred)
  • R060MREL senior unsecured eligible liabilities (holding company issued senior)
  • R070Liabilities that do not qualify for MREL but which rank pari passu with any MREL resources
  • R080Total MREL resources
  • R085Shares that do not qualify for CET1
  • R090For multiple point of entry (MPE) resolution groups only: exposures to other resolution groups or entities or sub-groups, that correspond to MREL eligible liabilities instruments
  • R100Institution’s holdings of MREL eligible liabilities instruments issued by the institution itself
  • R110Institution’s holdings of MREL eligible liabilities instruments of other entities with reciprocal cross-holdings
  • R120Institution’s holdings of MREL eligible liabilities instruments of G-SIB entities without significant investment in those entities
  • R130Of which held in the trading book for no longer than 30 business days, without significant investment
  • R140Institution’s holdings of MREL eligible liabilities instruments of G-SIB entities in which the institution has a significant investment
  • R143Of which held in the trading book for no longer than 30 business days, with significant investment
  • R160AT1 capital instruments that do not qualify for MREL

Columns

  • C010Less than one year (nominal outstanding value)
  • C020One year and greater, less than two years (nominal outstanding value)
  • C030Two years and greater, less than five years (nominal outstanding value)
  • C040Five years and greater (nominal outstanding value)
  • C050Perpetual (nominal outstanding value)
  • C060Calculated amount that does not have maturity (nominal outstanding value)
  • C070Current reporting aggregate (nominal outstanding value)

A worked example

With simple numbers.

Illustrative values
Less than one year (nominal outstanding value)1,200
One year and greater, less than two years (nominal outstanding value)800
Two years and greater, less than five years (nominal outstanding value)450
Five years and greater (nominal outstanding value)300
Perpetual (nominal outstanding value)150
Calculated amount that does not have maturity (nominal outstanding value)100
Together3,000
What the rule then expects

Current reporting aggregate (nominal outstanding value) must then be 3,000.

3,000Passes
3,100Fails

A file that reports 3,000 passes. One that reports 3,100 fails, by 100.

The numbers are illustrative, reported to the unit, so the rounding tolerance does not change the result.

Which returns it applies to

Line4 Check runs it on the MREL resources (MRL001) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to MREL resources (MRL001) returns, as a blocking check.

The Bank’s own words and formula

The first paragraph of the plain words above is the Bank of England’s own, word for word, from its list of validations. The second spells out its formula, with each cell named from its templates.

Show the formulaShow

The Bank of England's formula. Cells are written as {t: table, r: row, c: column}.

{t: MR02.01.01.01, c: 070} = {t: MR02.01.01.01, c: 010} + {t: MR02.01.01.01, c: 020} + {t: MR02.01.01.01, c: 030} + {t: MR02.01.01.01, c: 040} + {t: MR02.01.01.01, c: 050} + {t: MR02.01.01.01, c: 060}

Where it applies, in the Bank's words (its scope):

scope({t: MR02.01.01.01, r:005;030;050;060;070;080;085;090;100;110;120;130;140;143;160, f: banking, fv: mrel})

Every PRA banking rule on MR02.01.01.01

Checks like this one, run at the point of submission, are the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.