Closing the books in 7–10 working days: inside 3M's month-end process — what the AI does, what the experts do

There is a question we like to ask business owners in a first meeting: "What is today's date — and do you have last month's report yet?" The usual answer is the 25th, and... no. A report that arrives 25 days late is a report for the archive, not for decisions.

At 3M, clients typically receive a complete monthly report within 7–10 working days of month-end. Not because we hire more accountants than everyone else, but because we divide the work differently: machines do the repetitive part, humans do the judgment part. Here is the actual process, day by day.

Days 1–2: Automated collection and posting

Our Practica platform connects to the client's data sources: incoming and outgoing e-invoices synced from the tax authority, bank statements, and sales data from POS systems and e-commerce platforms.

• The AI reads each invoice and document and proposes the journal entry: account, expense category, counterparty, VAT rate.
• Recurring transactions (office rent, payroll, subscriptions) post straight through under rules pre-approved by the chief accountant.
• Actual result across our client base: over 90% of journal entries are posted automatically, most within minutes of the document appearing.

One thing matters more than the percentage: the AI is never allowed to edit the ledger silently. Every entry — machine-made or human-made — is written to an append-only audit trail: who created it, when, from which source document, who approved it. Correcting an entry creates a new adjusting entry; nothing is erased. When an auditor or a tax officer asks "where did this number come from," the answer is one click away.

Days 3–4: Humans work the exception queue

The remaining 10% or so is what the machine is not confident about — and this is where the accounting profession earns its keep:

• Invoices that deviate from history (a new supplier, an unusually large amount);
• Transactions that need judgment about substance: prepaid expense or current expense, director loan or revenue;
• Missing documents, or mismatches between invoice and cash received.

The accountant in charge clears each item in the queue, and every human decision is remembered by the system as a rule — the same transaction type posts itself next month. The automation rate climbs over time instead of standing still.

Days 5–6: Reconciliation and the expert review

• Reconcile bank balances, receivables, payables and inventory;
• Run an automated battery of over 60 checks: VAT gaps between declaration and ledger, expenses without invoices, abnormal negative balances and more;
• A 3M expert — not a model — reviews the full close, books the final closing entries (allocations, accruals, FX revaluation) and signs the report. Legal professional responsibility always rests with a human expert. That is a non-negotiable at our firm.

Days 7–10: Delivery — with the "so what"

The client receives, on the portal: balance sheet, P&L, cash flow, receivables and inventory detail — plus a short commentary from the accountant in charge: why gross margin moved 3 percentage points versus last month, which receivable is about to pass 60 days, and how much tax is due next period and when.

Why the speed matters to you

Numbers within 7–10 working days mean you still have most of the current month to act: chase a receivable early, cut an expense that is quietly inflating, set cash aside for tax instead of scrambling. For companies raising capital or negotiating bank loans, near-real-time books are direct negotiating leverage.

This close, typically within 7–10 working days, is part of 3M's full-service accounting, and for companies that report to a board we layer management reporting onto the same closing rhythm.

Want to see this process run on your own documents? Book a demo with our team — bring any one month of paperwork and we will close it in front of you.