Early access · Ireland
Arcus, our AI agent, codes your bills, matches your bank and prepares your VAT return. Our Chartered Accountants review it, and nothing moves without your OK.
Software from €99/monthDone for you €399/month
Eight stops, from the first email
to the locked month.
Stop 1 · Ask
Speak or type to Arcus like a colleague. One sentence becomes separate tasks, each with its deadline.
“Invoice ABC tomorrow, chase late payers in the afternoon, VAT by Monday.”
Stop 2 · Bills
Suppliers email your invoice inbox. Arcus reads every line, checks it and codes it like last time. Then it waits for your yes.
In your books
Adds upNot a duplicateSame IBAN
Stop 3 · Bank
Bank feeds come in every day from banks across Europe. Exact matches are ticked off, with undo until the month is locked.
Stop 4 · Get paid
Approve the invoice and Arcus sends it. Before each polite reminder, it checks the bank for the payment.
Stop 5 · Pay
At month end Arcus checks each bill that’s due and prepares the payment run. You approve it, then release it in your own bank.
Stop 6 · Cash
Ask about cash flow and get a chart from your books, not a spreadsheet. Actuals and forecast kept apart.
Stop 7 · Savings
Arcus reads your spend down to the unit price and asks other suppliers for quotes on the same item.
Stop 8 · Close
Your VAT return is prepared from the books for your OK, then filed by you, or by our team with Done for you. P&L and balance sheet ready.
Reviewed by a Chartered Accountant
Talk to Arcus
Ask in plain words, by voice or text. Arcus answers from your ledger, shows where each number comes from, and prepares the next step. Routine work it simply does, and tells you.
Lowest point is €18,400, in about 3 months, when two big supplier bills land the same week.
From 214 bank lines, 38 bills and 21 open invoicesNorthbox accepted 45 days last year. I drafted the request.
Meanwhile: Stripe payout matched, 41 sales and €38.20 fees booked. Nothing for you to check.
Click any figure and see the invoice, bill or bank line behind it. Every action, by a person or by Arcus, stays on the record.
Arcus never moves money, files tax, approves new bank details or locks a period on its own. New bank details need a second person.
Hosted and processed in the EU, encrypted in transit and at rest. Bank feeds come through GoCardless, a regulated open-banking provider.
Prices in euro per month, excluding VAT.
Our accountants run your books with Arcus.
€399 / month
Your team works with Arcus.
from €99 / month
All your clients, one arc.
from €50 / client / month
Arcus prepares the books for each client. Your team keeps every judgement, every sign-off and every filing.
Join the firm pilot
“I spent years as an accountant watching owners chase receipts, copy bank lines into spreadsheets and wait days for answers. The work was spread across five tools and three people. So I built 1Arc: one place where your books get done, with an AI agent doing the work and an accountant checking it.”
Ning Na · Founder · Chartered Accountant · HEC Paris Executive MBA
Accounting for small and medium-sized businesses, run by Arcus, an AI accounting agent. Arcus codes your bills, matches your bank, sends and chases invoices, prepares supplier payment runs and your VAT return, and asks you before anything important moves. Underneath is a complete double-entry ledger with VAT, period close and an audit trail.
Small and medium-sized businesses, in Ireland first, then the UK and the US: from an owner who does the books at night to a company with a finance team and several entities. Arcus takes the volume, so the work scales without adding headcount. Accounting firms can use it for all their clients.
No. Arcus never moves money, files tax, approves new bank details or locks a period. It prepares the payment run and you release it in your own bank. New bank details need a second person.
Our accountants run your books, bank, invoicing and chasing, VAT and month-end close with Arcus, and a Chartered Accountant reviews every month. You answer the odd question in chat and approve what matters. €399 a month excluding VAT.
Arcus prepares it from your books for your approval. With Done for you, our team files it once you approve; with Software, you file it yourself.
No. Invite your accountant into your books with their own role. Or let our team and a Chartered Accountant take it on with Done for you.
Yes. Moving from Xero, we import your chart of accounts so you start where you left off. 1Arc is a complete ledger, so you can run your books in it.
Most banks in Ireland and across Europe, through GoCardless, a regulated open-banking provider. Stripe payouts and fees are matched too.
Payroll is coming soon.
In the EU. Your data, documents and all AI processing stay in the EU, encrypted in transit and at rest, with each company kept separate.
Early access is open in Ireland now. The UK and the US come next. Prices are in euro.
Soon. Ask for early access and we invite businesses in the order they signed up.
Arcus prepares the work. You approve it. The books stay right.
Met us at Web Summit?
Leave your email. We’ll invite you as soon as your access is ready, in the order people signed up.
Prefer email? ning@greentally.ai
Investor? Write to ning@greentally.ai and we’ll send you the deck.
