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Strategy Lab · Accounting & law firms

Are you ready for e-invoicing? e-Invoicing in 2 Minutes: a readiness check for businesses in Greece

The desk of a small accounting office in the late afternoon: stacks of clipped invoices, a laptop with a dark screen, a printing calculator and binders on the shelf.This image was created with an AI tool (AI Act, Article 50).
10 questions · 2 min · no sign-up
Keys 1–5: choose · Enter: next · Backspace: back
  • For businesses established in Greece. The rules referred to are those of the Greek tax authority (AADE).
  • Your answers stay in your browser. The plan and its PDF are made on your device.
  • According to AADE (30/9/2026).

The demo in words: ten questions, one per screen. The first four are not scored: they decide which notes and actions you get. Questions 5 to 10 give up to 100 points. At the end, a gauge shows your readiness score, its band and an action plan in order (this week, before the date, after), which you can save as a PDF.

Ten questions, two minutes. At the end you get a readiness score and an action plan with dates, written for your situation.

It's a tool and a mechanism in one. An accounting firm sends it to its clients and finds out who needs help before the phone even rings.

Sector
Accounting & law firms
Mechanics
The action happens inside the email, with no click-through.Your own data, as a story you want to send.An AI assistant's recommendation lends authority; the visitor arrives half-decided.
Demo engine
Result Card
Complexity
1 = configuring existing tools · 5 = custom R&D
Production cost
Netex production only, excluding media and data licences. € under €2,000 · €€ €2,000–6,000 · €€€ €6,000–15,000 · €€€€ €15,000–40,000 · €€€€€ over €40,000. Netex estimate.
For businesses established in Greece. The rules referred to are those of the Greek tax authority (AADE).An announcement by a public authority, such as AADE, with its date.

Decode

How it got you

e-Invoicing in 2 MinutesPlay → Decode → Deploy
Mechanism
Ix · Interactive inbox + Wr · Data mirror + Ge · Be the AI's answer
Psychology
A 62/100 makes the remaining 38 points look close. The nearer a goal looks, the faster we move towards it (Kivetz, Urminsky & Zheng, 2006). Deadline anxiety turns into a list of three things. Kivetz, Urminsky & Zheng (2006), Journal of Marketing Research
Platform signal
Searches with intent ("e-invoicing 2026"), AI answers that cite pages with a clear answer (Google AI Mode has worked in Greek since 8 October 2025), and an email that gets answered inside the inbox itself.
Honest range
15–30% of people who start leave their details · 10–20% of those book a meeting Typical range for a pilot in a Greek SME · Netex estimate

Deploy

How we'd build it for you

Who it's forFor accounting firms with 100–300 clients, and law firms that want to speak up at the right moment.

  1. A ten-question check under the firm's own brand produces a readiness score and an action-plan PDF, with dates.

  2. Distribution: LinkedIn and Google Search for "e-invoicing 2026" · an interactive email to the firm's clients, answered inside the inbox · Viber.

  3. Results flow into the CRM. Clients in the red get an offer for a "migration package".

  4. The same engine serves AADE's next change: myDATA, the digital delivery note, and whatever comes after.

Channels and tech

Channels
LinkedIn · Google Search · email (AMP, with an HTML fallback) · Viber
Tech
A JavaScript questionnaire, a PDF built on the server, AMP email with an HTML fallback, a CRM link. The dates are settings, not code.
Complexity
1–2/5
Production cost
€–€€ · Netex estimate

What to expect, honestly

We don't promise viral. We promise a mechanism you can measure.

  • People who start and leave their details 15–30%
  • Of those, book a meeting 10–20%

most likely on a first run · A first run usually lands in the lower half of the range.

Before launch we fix one primary KPI and a control: a holdout area, off-trigger days or the previous period.

Guardrails

  • An information tool, not tax advice. It says so on every screen and in the PDF.
  • Dates are checked against AADE before every send.
  • No scare tactics about fines we can't document.
  • Separate consent for the PDF and for updates.
  • The firm's client data belongs to the firm.

Who did it before us

Email you can answer inside the inbox has been measured. And AI answers are already a customer channel.

Third-party results are mostly self-reported, from award entries and vendors. They show a mechanic can work, not what it will do for you.

Year Who What they did Result
— · international Mailmodo · AMP tests Interactive email against plain HTML. Conversion from 11% to 41% vendor figure Email on Acid
2025–26 · international Tally AI search became the top customer-acquisition channel. 43% of new users come via ChatGPT, Claude, Gemini, Perplexity and similar tools self-reported ARR Club

From marketing to AI

From 2 November 2026, every invoice is data. Let it do the work.

Compliance is the minimum. The gain is that the typing can stop.

  1. Incoming e-invoice or myDATA expense
  2. Reading and checks: VAT number, VAT, totals
  3. Suggested classification, with a confidence score
  4. The accountant's approval queue
  5. Posting to the ERP and myDATA
Anything with low confidence goes to a person. Always.

Questions

When does e-invoicing become mandatory for all businesses?

According to AADE (press release, 30 September 2026), the obligation for all remaining businesses starts on 2 November 2026, with a transition period until 31 January 2027. We check the dates regularly; please confirm them with your accountant.

Do I need an e-invoicing provider?

Not necessarily. You can issue through a certified provider, through your ERP connected to a provider, or with AADE's free tools (timologio, myDATAapp). The right choice depends mainly on your volume and the software you already use. If you issue from an ERP, you'll need a provider connection from 1 February 2027.

I only sell to consumers. Does this affect me?

Issuing concerns invoices to businesses. Receiving, though, is mandatory between Greek businesses, so your suppliers' invoices will arrive electronically. Make sure you can receive them.

What do I gain beyond compliance?

Every invoice you receive becomes structured data. That means posting to your books can happen without typing: reading, checking, a suggested classification and a person approving.

Can my ERP keep sending straight to myDATA?

According to AADE (press release, 30 September 2026), not from 1 February 2027. Transmission then runs only through a certified provider or AADE's apps (timologio, myDATAapp). Your ERP still issues the invoices, but it needs to connect to a provider.

Mechanism Sprint

Which deadline keeps your clients up at night?

Mechanism Sprint: designed, produced and measured in 10 working days. From €1,500.

Under your firm's brand, in an email your clients can answer inside the inbox. We reply within one working day.

The scenario you just played goes straight into the form.