Actor

PSU

Payment Service User

The PSU is you: the end user of a payment service, individual or business, who holds the account and gives (or refuses) consent.

Definition

The PSU (Payment Service User) is you, as soon as you use a payment service.

As an account holder, you grant or withdraw, at any time, the consent given to the providers (bank, aggregator, fintech) that want to access it.

Why such a generic term

PSD2 needs a neutral word to cover every profile. The PSU can be:

  • an individual who uses Bankin' to track their accounts;
  • the owner of a small business who connects Pennylane to their Qonto account;
  • an SME whose accountant initiates transfers via a PISP app.

The legal status changes (consumer vs business), but the role stays the same: account owner, source of consent.

Your rights as a PSU

  • Give explicit, granular consent that is revocable at any time.
  • Freely choose an authorised TPP, with no possibility for the bank to object.
  • Enjoy free access to AIS and PIS services via your bank.
  • Be protected by SCA on sensitive operations.

What you need to understand

  • Consent is framed: the scope of the data, the duration and the frequency are all tracked.
  • In the event of an unauthorised payment, it is your bank (the ASPSP) that reimburses first, and then turns to the PISP if its liability is engaged.
  • You stay in control: an access right is revoked from your banking area, with no need to go through the TPP.

Within the PSD2 ecosystem

The PSU is at the centre of the system: without them, there is no consent, and therefore no access to data and no payment initiation.

Real-world examples

  • Individual — aggregation: you connect Bankin' to your BNP account by approving via SCA. You are the PSU, Bankin' the AISP, BNP the ASPSP.
  • Business — accounting: your accountant connects Pennylane to your Qonto, but it is you, the business owner, who remains the PSU and gives consent.
  • E-commerce — payment: at checkout with Decathlon, you pay via Fintecture (the PISP); it is you, the PSU, who authorises the transfer, with the PISP being merely an intermediary.

See also: STET handbook

Sources

Go deeper

From the blog

Longer reads to go beyond the definition.

April 7, 2026
technical

Technical architecture of a PSD2 API: what to know before writing the first line of code — Read more

A technical overview of PSD2 for CTOs, developers and technical PMs: API standards, security (mTLS, eIDAS certificates), OAuth2, SCA flows, consent management, implementation pitfalls.

April 6, 2026
regulation

Understanding PSD2: what it changes for your customers and your business — Read more

Everything an executive, a product manager or a business team needs to understand about PSD2. Players, consent, opportunities, without technical jargon.