What is the latest version of acmt.031?

The latest version in the ISO 20022 e-Repository release of 24 April 2025 is acmt.031.001.05.

What is the root element of acmt.031?

The XML document is Document with the namespace urn:iso:std:iso:20022:tech:xsd:acmt.031.001.05, and its message element is AcctSwtchReqBalTrf (AccountSwitchRequestBalanceTransfer).

Is there an MT equivalent of acmt.031?

No Swift MT message is listed as its direct equivalent on this site. Many ISO 20022 messages have no MT counterpart.

acmt: Account Management

acmt.031 Account Switch Request Balance Transfer

Written and maintained by ZagTrader. Last reviewed 21 October 2026. How this page is sourced and checked

acmt.031 is the ISO 20022 AccountSwitchRequestBalanceTransfer message in the Account Management business area (acmt). The latest version is acmt.031.001.05, and 5 versions are in the repository.

Message: AccountSwitchRequestBalanceTransfer
Latest version: acmt.031.001.05
Submitting organisation: Payments UK
MT equivalent: None listed

In use: published in the current ISO 20022 catalogue.

What acmt.031 is for

The AccountSwitchRequestBalanceTransfer message is sent by the new account servicer to the account servicer which previously held the account to request the transfer of the closing balance. This may be addressed to the new account or an alternate account nominated by the new account servicer.

Definition from the ISO 20022 e-Repository, release of 24 April 2025.

acmt.031 versions

Every version published in the e-Repository, newest first. A message keeps its business purpose across versions; each new version is a separate schema with its own namespace.

Version	Registration status	Published in
acmt.031.001.05latest	Registered	Latest version set
acmt.031.001.04	Registered	Previous version set
acmt.031.001.03	Registered	Archive
acmt.031.001.02	Registered	Archive
acmt.031.001.01	Registered	Archive

acmt.031 message structure

The building blocks of acmt.031.001.05 to three levels, with multiplicity ([0..1] optional, [1..1] mandatory, * any number) and the data type or component. Element names and definitions are from the ISO 20022 repository; usage guidelines such as CBPR+ or a market infrastructure's rules can restrict them further.

Document [1..1]
- AcctSwtchReqBalTrf AccountSwitchRequestBalanceTransfer [1..1]
  - MsgId Message Identification [1..1]MessageIdentification1
    Unique identification for the message.
    - Id Identification [1..1]Max35Text
      Identification of the message.
    - CreDtTm Creation Date Time [1..1]ISODateTime
      Date of creation of the message.
  - AcctSwtchDtls Account Switch Details [1..1]AccountSwitchDetails1
    Contains information about the details of the account switch.
    - UnqRefNb Unique Reference Number [1..1]Max35Text
      Unique number that provides unique and unambiguous identification of the account switch.
    - RtgUnqRefNb Routing Unique Reference Number [1..1]Max35Text
      Unique number that provides unique and unambiguous identification of the account switch.
    - SwtchRcvdDtTm Switch Received Date Time [0..1]ISODateTime
      Date and time that the request was received by the central switch service, populated by the central switch service only.
    - SwtchDt Switch Date [0..1]ISODate
      Date on which the account switch is expected to have completed.
    - SwtchTp Switch Type [1..1]SwitchType1Code
      Indicates whether the account switch is a full switch or a partial switch.
    - SwtchSts Switch Status [0..1]SwitchStatus1Code
      State of the account switch at the time the message is sent.
    - BalTrfWndw Balance Transfer Window [0..1]BalanceTransferWindow1Code
      Identifies the processing window in which the balance transfer will be processed on the day of the account switch.
    - Rspn Response [0..*]ResponseDetails1
      Response code and additional information.
      - RspnCd Response Code [1..1]Max35Text
      - AddtlDtls Additional Details [0..1]Max350Text
  - NewAcct New Account [1..1]CashAccount43
    Details of the new account set up with the new account servicer.
    - Id Identification [0..1]AccountIdentification4Choice (choice)
      Unique and unambiguous identification for the account between the account owner and the account servicer.
      - IBAN IBAN [1..1]IBAN2007Identifier
      - Othr Other [1..1]GenericAccountIdentification1
    - Tp Type [0..1]CashAccountType2Choice (choice)
      Specifies the nature, or use of the account.
      - Cd Code [1..1]ExternalCashAccountType1Code
      - Prtry Proprietary [1..1]Max35Text
    - Ccy Currency [0..1]ActiveOrHistoricCurrencyCode
      Identification of the currency in which the account is held.
    - Nm Name [0..1]Max70Text
      Name of the account, as assigned by the account servicing institution, in agreement with the account owner in order to provide an additional means of...
    - Prxy Proxy [0..1]ProxyAccountIdentification1
      Specifies an alternate assumed name for the identification of the account.
      - Tp Type [0..1]ProxyAccountType1Choice (choice)
      - Id Identification [1..1]Max2048Text
    - Ownr Owner [0..1]PartyIdentification272
      Party that legally owns the account.
      - Nm Name [0..1]Max140Text
      - PstlAdr Postal Address [0..1]PostalAddress27
      - Id Identification [0..1]Party52Choice (choice)
      - CtryOfRes Country Of Residence [0..1]CountryCode
      - CtctDtls Contact Details [0..1]Contact13
    - Svcr Servicer [0..1]BranchAndFinancialInstitutionIdentification8
      Party that manages the account on behalf of the account owner, that is manages the registration and booking of entries on the account, calculates...
      - FinInstnId Financial Institution Identification [1..1]FinancialInstitutionIdentification23
      - BrnchId Branch Identification [0..1]BranchData5
  - NmntdAcct Nominated Account [0..1]CashAccount43
    Alternate beneficiary account for a payment made from the old account servicer to the new account servicer in the case of a positive closing balance of the old bank.
    - Id Identification [0..1]AccountIdentification4Choice (choice)
      Unique and unambiguous identification for the account between the account owner and the account servicer.
      - IBAN IBAN [1..1]IBAN2007Identifier
      - Othr Other [1..1]GenericAccountIdentification1
    - Tp Type [0..1]CashAccountType2Choice (choice)
      Specifies the nature, or use of the account.
      - Cd Code [1..1]ExternalCashAccountType1Code
      - Prtry Proprietary [1..1]Max35Text
    - Ccy Currency [0..1]ActiveOrHistoricCurrencyCode
      Identification of the currency in which the account is held.
    - Nm Name [0..1]Max70Text
      Name of the account, as assigned by the account servicing institution, in agreement with the account owner in order to provide an additional means of...
    - Prxy Proxy [0..1]ProxyAccountIdentification1
      Specifies an alternate assumed name for the identification of the account.
      - Tp Type [0..1]ProxyAccountType1Choice (choice)
      - Id Identification [1..1]Max2048Text
    - Ownr Owner [0..1]PartyIdentification272
      Party that legally owns the account.
      - Nm Name [0..1]Max140Text
      - PstlAdr Postal Address [0..1]PostalAddress27
      - Id Identification [0..1]Party52Choice (choice)
      - CtryOfRes Country Of Residence [0..1]CountryCode
      - CtctDtls Contact Details [0..1]Contact13
    - Svcr Servicer [0..1]BranchAndFinancialInstitutionIdentification8
      Party that manages the account on behalf of the account owner, that is manages the registration and booking of entries on the account, calculates...
      - FinInstnId Financial Institution Identification [1..1]FinancialInstitutionIdentification23
      - BrnchId Branch Identification [0..1]BranchData5
  - BalTrf Balance Transfer [0..*]BalanceTransfer5
    Information that enables the receiving bank to reconcile the payment with the request.
    - BalTrfRef Balance Transfer Reference [0..1]BalanceTransferReference1
      Reference that enables the creditor to reconcile a payment received through a different payment channel with the payment request.
      - BalTrfRef Balance Transfer Reference [1..1]Max35Text
    - BalTrfMtd Balance Transfer Method [0..1]SettlementMethod5Choice (choice)
      Contains details of the clearance and settlement method chosen to make the appropriate payment from account servicer to account servicer in order to...
      - Cdt Credit [1..1]CreditTransferTransaction59
      - Dbt Debit [1..1]CreditTransferTransaction59
    - BalTrfFndgLmt Balance Transfer Funding Limit [0..1]BalanceTransferFundingLimit1
      Maximum value that the new account servicer will pay to the old account servicer when the closing balance on the old account is negative.
      - CcyAmt Currency Amount [1..1]ActiveCurrencyAndAmount
  - SplmtryData Supplementary Data [0..*]SupplementaryData1
    Additional information that cannot be captured in the structured elements and/or any other specific block.
    - PlcAndNm Place And Name [0..1]Max350Text
      Unambiguous reference to the location where the supplementary data must be inserted in the message instance.
    - Envlp Envelope [1..1]SupplementaryDataEnvelope1
      Technical element wrapping the supplementary data.

Have a acmt.031 message? Paste it into the parser to see every element with its name and definition, and format checks on BICs, IBANs, dates and amounts.

External code sets used in acmt.031

These elements take their values from ISO 20022 external code sets, which are published separately and updated every quarter without a new message version.

acmt.031 questions

What is the latest version of acmt.031?: The latest version in the ISO 20022 e-Repository release of 24 April 2025 is acmt.031.001.05.
What is the root element of acmt.031?: The XML document is Document with the namespace urn:iso:std:iso:20022:tech:xsd:acmt.031.001.05, and its message element is AcctSwtchReqBalTrf (AccountSwitchRequestBalanceTransfer).
Is there an MT equivalent of acmt.031?: No Swift MT message is listed as its direct equivalent on this site. Many ISO 20022 messages have no MT counterpart.

All ISO 20022 messages · ISO 20022 code sets · MT messages

The ISO 20022 message definitions, element names and definitions on this page are reproduced from material published at iso20022.org under the ISO 20022 Intellectual Property Rights policy. This is not the official source: the up-to-date ISO 20022 standards and repository material are published only at iso20022.org. Explanations in our own words are by ZagTrader. ZagTrader is not affiliated with or endorsed by ISO or Swift.