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    Home/Integrations/Digital signatures/Hix

    Hix integration

    Hix and M-Files: annual accounts and client documents signed from the client file

    Hix is a Dutch platform for accountancy firms, with advanced and qualified e-signatures. You start the signing flow in M-Files, and every signed document returns to the right client file with its evidence.

    Plan a demo See how it works

    M-Files Solution Partner100+ implementations since 2010Dutch, French, English
    Hix signing flow
    Annual accounts 2025Client: De Vries Installatie BVSent
    Signer 1: clientSigned with SMS verificationSigned
    Signer 2: accountantQualified signature, reminder plannedWaiting
    Back in M-FilesSigned PDF and evidence in the client fileFiled

    Illustrative example

    In shortWhy HixHow it worksBest fitQuestions

    In short

    Hix is a Dutch software platform for accountancy and administration offices. Its Hix Signing module signs annual accounts and other client documents at eIDAS advanced or qualified level. Integrated with M-Files, a signing flow starts from the document in M-Files, status and reminders are tracked there, and the signed version plus the signing evidence return automatically to the right client file. SoftAdvice configures the integration.

    Why Hix

    Built around the Dutch accountancy cycle

    Hix is made for accountancy and administration offices that share tax returns and annual accounts with their clients and need approval or a signature back. Hix Signing adds the signature to that process, and every signed document gets an audit trail that shows who signed, when and from which IP address.

    • Two legal levels: advanced signatures by default, with identity confirmed by SMS or an authenticator app, and qualified signatures with a KPN or Cleverbase certificate
    • Signing order in rounds: each signer only receives the document once the previous round has signed
    • Fields per signer: signature, initials, stamp, date or text, placed on the document and linked to the right person
    • Annual accounts: after the client approves, Hix can file the publication documents with the Dutch Chamber of Commerce (KvK)

    Integration datasheet

    Status
    Available
    Category
    E-signature platform
    Signature levels
    eIDAS advanced (AdES) and qualified (QES)
    Signing methods
    SMS or authenticator app; KPN or Cleverbase certificate for qualified
    Hosting
    Netherlands
    Integration
    Configured by SoftAdvice
    Licence
    On request
    How it works

    M-Files stays the source of truth, Hix handles the signature

    You do not switch tools or re-upload files. The signing request starts and ends inside M-Files. SoftAdvice configures the integration once; your team simply uses it.

    Start from M-Files

    Pick the document, choose the signers and their role (client, internal, external) and start the signing flow with one click.

    Status, reminders and order

    Track who signed, who is still pending and which steps are queued. Signing order and automatic reminders are set per flow.

    Audit-proof file

    The signed version and the signing evidence return automatically to the right file in M-Files, with the right metadata.

    Best fit

    Where Hix and M-Files pay off fastest

    Dutch accountancy firms

    Annual accounts and related documents signed per client file, with the evidence attached automatically in M-Files.

    Read more

    Administration offices

    Client documents that need approval or a signature, started from the client file instead of from a mailbox.

    Read more

    Multi-signer approval flows

    Client first, then the accountant with a qualified signature, in a fixed order that M-Files tracks.

    Read more

    Frequently asked questions

    Are Hix signatures legally valid?

    Yes. Hix Signing works under the European eIDAS rules, with advanced signatures by default and qualified signatures for users with a KPN or Cleverbase certificate. A qualified signature has the same legal value as a handwritten signature in the EU.

    Where are the signed document and the evidence stored?

    Both return automatically to the right client file in M-Files, with the right metadata, so the file is complete for audits.

    Can we set a signing order and send reminders?

    Yes. Hix works with signing rounds, so each signer only receives the document after the previous round. Reminders go out for documents that are still open, and you follow the status in M-Files.

    Do clients need to install anything to sign?

    No. Signers receive a personal link by e-mail and sign in their browser. For an advanced signature, their identity is confirmed with SMS or an authenticator app.

    Do we need a Hix licence?

    Yes, signing runs on your own Hix account. We advise on the right setup.

    Related

    ValidSign and M-FilesAll e-signature integrationsDigital signatures for accountantsWhat is a digital signature?Practical guide: e-signingPenneo and M-FilesAll M-Files integrations

    Want to integrate Hix into your document process?

    In a 45-minute session we look at which documents you sign today, where it gets stuck, and how an integrated flow with M-Files speeds it up.

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    SoftAdvice

    Process & information architects

    M-Files Solution Partner since 2010, active in Belgium, the Netherlands and Luxembourg.

    info@softadvice.eu
    Belgium +32 2 895 06 00
    Netherlands +31 79 799 61 40
    Luxembourg +352 27 86 46 55

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