For a business
Your accounting, automated in-house.
- Books, bank and VAT
- Payroll, cash and deadlines
- Your own team approves
For businesses and firms
We set up the operating system
Your own system, customised to how you work. AI agents prepare the work and keep learning; your people decide.
The system we run our own firm on · Scoped and quoted first
For accounting and audit firms ↓ Vacei Books · €5 a month ↓
What we do
Your system, built for you.
Your system, built for you.
Fully customisable.
For a business or a whole firm. Try the demo, or build yours.
For accounting and audit firms
Your whole firm, automated.
- Accounting and audit
- Every client company, one list
- In your firm’s brand
Your agents keep improving.
They learn your rules and the way you work from every decision, and apply it next time.
Illustrative · fictional data
Watch · 59 s
An evening at
An evening at
Marija’s firm.
One request. Her AI agents prepare. She decides.
The film is on its way.
Illustrative · fictional data
How to start
Four steps.
Four steps.
We set it up.
Scoped and quoted first.
Illustrative · fictional data · no sound needed
In Malta, accounting, audit and other services are delivered by A4 Services Limited.
For businesses in Malta · Vacei Books
Your accounting, from
Your accounting, from
the AI app on your phone.
Type it in Claude on your phone, or in Claude or ChatGPT on the web. Vacei keeps proper books behind it.
An illustration with fictional figures. On a phone, a business owner asks Claude to record a supplier bill they have already uploaded through their Vacei upload page. Claude proposes the entry, the owner confirms it, and it is posted with an audit trail: in the Vacei Books portal the new ledger line appears, the creditors total goes up by the same amount and the VAT owed this quarter goes down by the bill’s input VAT. The owner then asks how much VAT is owed this quarter, and who owes them money; Claude answers with the figures the portal shows.
Illustrative · fictional data
Real accounting rules
Double-entry, Malta VAT and the checks accountants and auditors look for. Proper books, not a chat transcript.
Every entry traced
Each entry links to its invoice, receipt or bank line, or records why not, and anything unsupported stays visible.
Debtors and creditors tracked
Who owes you and who you owe, aged and reconciled to the bank.
Run your portal from your AI app
Post, reconcile and ask for help in plain English: with Claude on your phone, or with Claude and ChatGPT on the web. Documents go in through your Vacei upload page.
€5 a month per company
First month free · Excl. VAT · Books and Payroll together €7 a month
Self-serve software for Malta · No card to start · Your AI subscription is separate
Free for A4 clients, for every company A4 looks after. Already an A4 client? Sign in with the account A4 set up for you.
One login for all your companies, billed together. Need a person? A4 handles your audit, VAT returns, payroll and bookkeeping, quoted first. See A4's prices or ask A4 to keep your books.
In Malta, accounting, audit and other services are delivered by A4 Services Limited. Explore services or request a service.
For businesses · Vacei Payroll
Malta payroll, done right.
Malta payroll, done right.
€5 a month.
Built for Malta: payslips, FSS and SSC, leave and timesheets, with your FS3, FS5 and FS7 prepared. Run it yourself, in plain English with your AI assistant if you like, or ask A4 to run it for you.
€5 a month per company · First month free · Excl. VAT · With Vacei Books, €7 for both
Free for A4 clients, for every company A4 looks after.
Need a person? A4 runs your payroll, quoted first. See A4's prices.
In Malta, payroll services are delivered by A4 Services Limited.
- PayslipsFor every pay run
- FSS and SSCWorked out for each employee
- Leave and timesheetsKept with the payroll
- FS5Prepared each month
- FS3 and FS7Prepared at year end
Why now
The biggest firms in the world were built on people: 1,500,000+ people across the Big Four.
Four firms take 86% of EU public-interest audit revenue. Billed by the hour.
“Computer” used to be a job. A building full of people doing calculations became a laptop.
Accounting and audit are next. The next Big Four will be AI-native.
Meet Vacei: the operating system for your firm, with VEE, the AI inside it.
Vacei takes the place of the separate ledgers, audit files, spreadsheets and email chains most firms run on today. Four portals on one ledger, under your firm’s brand.
AI agents inside
Prepares the routine work in every portal: reading documents, posting entries, drafting returns, planning audits. Specialist agents do the testing. Works with your Claude or ChatGPT.
Accounting
Books kept by AI agents, bank reconciliations, VAT returns, payroll and financial statements for every client.
Open a sample →Audit
Planning, testing by specialist agents, working papers with the evidence attached, review and sign-off.
Watch an audit run ↓Practice
The partner and staff portal: clients, KYC and AML onboarding, engagements, owners and deadlines across the firm.
Open a sample →Client portal
Requests, documents and live figures for your clients, in your firm’s brand, on the web and on their phone.
Open a sample →We’re not the audit firm. We’re the operating system behind yours. Your firm keeps its clients, its professional judgement and its sign-off.
The audit portal
How an audit runs
How an audit runs
on Vacei.
One engagement, from the client’s upload to your sign-off. AI agents do the preparation; the auditor reviews every working paper and signs.
How an audit runs on the audit portal · explainer · no sound needed
The client uploads once
Every document is read, classified and filed into the audit file.
Planned, for your approval
Materiality, the risk register and the audit programme, ready for your approval.
Specialist agents test
Each section goes to its agent. Procedures run and working papers attach.
What is missing is chased
Requests go to the client portal; new evidence is filed and re-tested.
You sign off
The auditor reviews every working paper and signs. The judgement stays yours.
VEE prepares, you decide
VEE prepares. You decide.
One stack. Every service line: onboarding and KYC, books, VAT, payroll, audit, financial statements, the client portal and Ask VEE.
We’re not the audit firm. We’re the operating system behind yours.
On your phone and tablet
Vacei, one tap
Vacei, one tap
from your home screen.
Vacei for Partners for your firm; Vacei for Clients, with the books built in, for your clients. Each opens in its own app window on iPhone, iPad and Android, with the AI agents inside. Added from the browser in two minutes, with no app store.
- Sign off from anywhere
- Snap a receipt at the counter
- New versions without reinstalling
Your brand, your AI
In your firm’s brand, on every portal: your name, logo and colours.
Works with your Claude or ChatGPT.
Faster output, at a lower cost.
What is Vacei?+
The AI-native operating system for accounting and audit firms: accounting, audit, the partner and staff portal and the client portal on one platform, in your firm’s brand, with AI agents built in.
Which firms is it for?+
Accounting and audit firms of every size, from sole practitioners to firms with several offices. Any firm can run on Vacei, and there is no limit on how many firms in a country use it.
What does it cost?+
Vacei is priced for your firm: we build a proposal around your practice. Book a demo and we will prepare one.
Do the AI agents replace our judgement?+
No. The agents prepare; your people review, decide and sign. In audit, a qualified person always reviews and signs, and every step the agents take is recorded.
Do the agents get better over time?+
Yes. They learn your rules and the way you work from each decision you make, and apply them next time. Your people still approve the work.
Will our clients see Vacei or our firm?+
Your firm. The client portal carries your logo, your colours and your domain, with a small “Powered by Vacei” mark.
Does it work with Claude or ChatGPT?+
Yes. The AI agents are built into every portal, and your team can connect Claude or ChatGPT to work on client files from the assistant it already uses. Those subscriptions are separate from Vacei.
Can we bring our existing clients and data?+
Yes. Ledgers are migrated from your current software or Excel, prior year included, and our team helps you set up your firm and train your people. Your data stays exportable in full, at any time, in open formats.
Is Vacei Books still available for businesses?+
Yes. Vacei Books is accounting software built for Malta, at €5 a month per company, or €7 with Vacei Payroll, excl. VAT. The first month is free and no card is needed to start. Vacei Books and Vacei Payroll are free for every company A4 looks after; A4 clients sign in with the account A4 set up for them. One login manages all your companies, billed together. Work in your browser or connect your own supported AI through MCP. Your AI subscription and professional services are separate.