Account servicing is the set of functions an institution performs to maintain an account on behalf of its holder: opening it, keeping the balance, posting debits and credits, carrying out payment or transfer instructions, applying interest and fees, and reporting activity back to the owner. The institution that does this is called the account servicer or account servicing institution. It may be a commercial bank holding a customer's current account, a central bank holding a commercial bank's reserves, or a custodian holding securities for an investor.
The term appears throughout payments standards. ISO 20022 messages name an "account servicer" for every account referenced in a transfer, and the European payment services rules use "account servicing payment service provider" (ASPSP) for the firm that holds a payment account and must give access to licensed third parties. Account servicing is distinct from the account itself and from account reconciliation, which is the process of checking that two records of an account agree.
Account servicing in plain terms
Think of an account as a locker and the account servicer as the attendant who looks after it. The owner decides what goes in and out, but the attendant keeps the key, writes down every change in a logbook, follows the owner's instructions, and hands over a copy of the logbook when asked.
The owner relies on the attendant being accurate and available. If the attendant loses the logbook, ignores an instruction or mixes up two lockers, the owner is the one who suffers. That is why the quality of account servicing matters so much to banks, businesses and investors, even though most of it happens out of sight.
What account servicing covers
The exact scope depends on the type of account, but most account servicers carry out a common core of tasks:
- Record-keeping. The servicer keeps the authoritative ledger of the account, applying each entry under double-entry accounting so that balances can be traced.
- Instruction processing. Payment orders, standing orders, direct debits and securities transfer instructions are validated and executed, usually subject to a cut-off time for same-day processing.
- Reporting. Statements, intraday balance reports and confirmations go to the account holder, increasingly in ISO 20022 formats such as camt messages.
- Pricing and interest. Fees, interest and earnings credits are calculated and posted, often summarised in an account analysis statement for corporate clients.
- Controls. The servicer applies sanctions screening, fraud checks, holds and freezes required by law or by the account agreement.
Account servicing in payment and settlement systems
In a large-value payment system, the central bank is the account servicer for every participant's settlement account. When a transfer settles in Fedwire, the Federal Reserve Bank debits one master account and credits another; when it settles in T2, the relevant national central bank of the Eurosystem does the same. Because the accounts are held at the central bank, the settlement asset is central bank money.
In correspondent banking, the bank that holds a foreign bank's vostro account is its account servicer. The foreign bank sees the same account as its nostro account and depends on the servicer's statements to reconcile its own books. In securities markets, a central securities depository services the securities accounts of its participants, and a bank custodian services the accounts of end investors, often through layers of sub-custodians.
Account servicing under open banking rules
The ASPSP concept was introduced by the EU's second Payment Services Directive (PSD2) and copied in several other jurisdictions. An ASPSP must allow an authorised account information service provider to read account data, and an authorised payment initiation service provider to start payments, once the customer consents. The bank remains the account servicer: it still holds the funds, applies its controls and executes the payment. The third party only gains a regulated channel to send instructions or receive information.
Risks and standards
Poor account servicing shows up as unreconciled breaks, late or wrong postings, missed corporate actions in securities accounts, and gaps in reporting that make it hard for the holder to manage intraday liquidity. For a financial market infrastructure, failures in account servicing are a form of operational risk and can spread quickly to participants.
The Principles for Financial Market Infrastructures address this indirectly through their rules on operational reliability, custody, and money settlement. Supervisors also expect banks to keep account records that can be produced quickly in a resolution, so that accounts can be transferred to another institution if the original servicer fails. For custody accounts, the servicer's duty to keep client assets separate from its own is central, and links closely to custody risk.