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The agentic operating system for accounting & audit firms

Run an AI-native practice.

Vacei is an operating system where AI agents run the work of the practice — bookkeeping, audit fieldwork, tax, payroll, filings — and your professionals review, decide and sign. Everything is automated except judgement. That remains with your team.

Book a firm demo Meet the agents

Vacei is the software. The accounting, tax and audit behind it are delivered by A4 Services Limited, a licensed Maltese accounting and audit firm.

Rather hand the work over entirely? See the outsourcing offer →
The AI workforce The full ecosystem Three portals The transition
• Built AI-native

What AI-native actually means

Not a chatbot added to legacy software. The work itself is carried out by agents, and your professionals move from performing it to reviewing and deciding on it.

Agents perform the work

Documents coded, banks reconciled, audit evidence gathered, filings drafted — completed work arrives in a queue, referenced and ready for review.

Professionals exercise judgement

Estimates, going concern, materiality, sign-off — never automated. Every agent output waits for a human decision, recorded by name.

Capacity without headcount

Take on more clients without recruiting for them. Agent capacity scales with the client book; your cost base does not have to.

• The AI workforce

Engage agents the way you engage staff.

Agents cover every function of the practice — bookkeeping, bank reconciliation, management accounts, FS preparation, audit planning through completion, VAT and tax, payroll, KYC, statutory filings, workflow and client communications. Each works the clients you assign to it and reports to a named member of your team. Nothing is posted, filed or released without that person's approval.

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See the full roster on a demo Begin with one agent on a selection of clients, or the full roster across the book.
• The full ecosystem

Everything automated. Except judgement.

One system runs the whole engagement, end to end. The line between what agents perform and what your professionals decide is drawn once — and it never moves.

AGENTS PERFORM
Documents coded
Bank reconciled to €0.00
Audit evidence indexed
VAT return drafted
REVIEW
one gate · recorded by name
YOUR FIRM DECIDES
Accounting estimates
Going concern
Materiality
Audit opinion & signature
Accounting, automated
Documents read and coded on arrival, ledgers kept current daily
Bank feeds reconciled, exceptions surfaced with the document beside them
VAT returns and payroll postings drafted against the deadline calendar
Financial statements drafted with disclosures checked against GAPSME / IFRS
Audit, automated
Evidence requested, followed up and indexed against the assertion it supports
Casting, vouching and sampling run across the full population
Working papers drafted in your firm's methodology, cross-referenced and cast
Every run recorded — which version, when, what was cleared — for the reviewer and the inspector
NEVER AUTOMATED
Accounting estimatesGoing concernMaterialityOpinions & signatures

Agents prepare; a named professional decides — and the system records who.

REQUESTED IN THE PORTAL
+Payroll+VAT registration+New company+Management accounts
Request service lands in the same queue — no email chains
• Three portals

One system, three front doors

Clients, staff and partners each work from their own surface over the same data — nothing is forwarded, exported or re-typed between them.

CLIENT PORTAL
White-labelled as your firm

Your logo, your colours, your domain — in the application and in every email it sends. Clients upload documents and follow their own engagement status. They see your firm, not ours.

STAFF PORTAL
Where the review happens

One queue across every client: what the agents have prepared, what requires a decision, what is closest to a deadline. Preparer, reviewer and partner see and sign different things.

ADMIN PORTAL
Where the firm is run

Roles and permissions, review gates, agent assignments, branding and billing — with oversight of timesheets, recovery and the work delivered across the book, client by client.

Look inside, before you talk to anyone.

Two sample portals, filled with an invented client book, so you can see the shape of the thing rather than read about it. No sign-up, no account — the logo slot is left empty because in your version it carries your mark.

Sample data throughout — the companies and figures in both portals are invented.

Configured around your practice, not the other way round
Timesheets Time & % worked per client WIP & recovery Firm templates — engagement letters, FS, reports Your review workflow & sign-off gates Deadline calendar per jurisdiction

Include what your practice runs on; omit what it does not. Scoped with you at setup.

The proof
A4 runs its own practice on Vacei.

We are the first case study — every client of the firm runs through the same agents and the same review gates you would use.

• The transition

From legacy to AI-native — the 5 steps

01
See it on your own client

Bring one live file to the demo. Agents set it up in front of you — judge them on your client, not on a slide.

02
Pilot on a segment

One agent, a slice of the book. Your staff review agent output beside their own work. No commitment beyond the pilot.

03
Draw your judgement line

Review gates, sign-off roles and what is never automated — configured to your methodology, once.

04
Migrate and brand

Ledgers in, portal white-labelled, templates and deadline calendars set to yours.

05
Run AI-native

Agents work overnight, the queue is ready at 8am, your professionals review and sign. Capacity grows without headcount.

Rather not run it yourself?
We can run your back office for you.

The same agents plus our licensed accountants, running your files end-to-end under your brand — you keep the client and the sign-off. Built for Maltese firms, with the MBR integration connected.

See the outsourcing offer →
EU hosting

Client data stays in the EU. Encrypted at rest and in transit.

Role-based access

Preparer, reviewer and partner see and sign different things — you set the roles.

Full audit trail

Every agent run and every human decision recorded — who, what, when — for the reviewer and the inspector.

Client data isolation

Each firm's book is isolated — your clients are never visible to anyone but your firm.

See the agents at work on your own client book.

Bring a real client file to the demo. We put the agents to work on it live, and you decide from what you see — not from a deck.

Software priced per client, per month — scoped with you on the demo.
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