If your business still generates invoices manually in Word or Excel, emails them one by one, and tracks payments in a spreadsheet, you are spending 8-12 hours per month on a process that should take 30 minutes.
Invoice automation is one of the fastest-ROI projects any Greek SME can implement. Here is how to do it, step by step.
What Invoice Automation Actually Means
Automated invoicing connects your client data (from a CRM, project tool, or even a spreadsheet) to an invoice generator that creates, sends, tracks, and follows up on invoices without human intervention.
You still control everything: pricing, terms, branding, when invoices go out. The system handles the execution. You handle the exceptions.
The Invoice Automation Workflow
Here is the workflow we implement for most Greek businesses:
Step 1: Client data source. Your CRM, project management tool, or client database becomes the single source of truth. Client name, tax ID (ΑΦΜ), services delivered, pricing. All in one place.
Step 2: Automatic invoice generation. At your chosen frequency (monthly, per project, per milestone), the system pulls client data and generates a professional invoice. Branded, numbered, with all the required Greek tax fields (ΑΦΜ, ΔΟΥ, activity description).
Step 3: Automatic sending. Invoices are emailed to clients with a personalized message. PDF attached, payment details included, professional template.
Step 4: Payment reminders. If payment is not received within your terms (typically 30 days), the system sends a polite reminder at day 7, day 14, and day 30. Escalation rules can notify you for overdue accounts.
Step 5: Payment tracking. When payment arrives (bank notification, Stripe webhook, or manual confirmation), the invoice is marked as paid. Your dashboard shows outstanding amounts, overdue invoices, and cash flow projections in real time.
Tools You Can Use
For Greek businesses, these tools handle automated invoicing well:
For simple needs (freelancers, small teams): Elorus, Apivo, or TimologioOnline. Greek-made, AADE-compliant, affordable (€10-30/month). They handle e-invoicing (myDATA) requirements automatically.
For growing businesses: Connect your CRM (HubSpot, Pipedrive) to your invoicing tool via automation platforms like n8n, Make, or Zapier. This creates a fully automated pipeline from “deal closed” to “invoice sent.”
For custom needs: If your pricing is complex (usage-based, milestone-based, retainer + variable), a custom automation pulls data from multiple sources and generates invoices with the right calculations. This is where off-the-shelf tools hit their limits.
Greek Tax Compliance (myDATA / AADE)
Any invoice automation for Greek businesses must handle myDATA integration. Since 2024, all invoices must be transmitted to AADE’s myDATA platform. The good news: most Greek invoicing tools (Elorus, Apivo, SoftOne) handle this automatically. If you are building a custom solution, you will need to integrate with the myDATA API or use a certified provider.
The ROI
For a business with 20 active clients:
Manual process: 12 hours/month (data gathering, invoice creation, sending, follow-up, payment tracking).
Automated process: 30 minutes/month (reviewing exceptions and approving edge cases).
Time saved: 11.5 hours/month = 138 hours/year.
At €25/hour: That is €3,450/year in recovered time.
Plus faster payments. Automated reminders reduce average payment time by 30-40%. Better cash flow with zero extra effort.
How to Get Started
Start by mapping your current invoice process. How many clients? How complex is pricing? What tools do you already use? Then choose the right level of automation: off-the-shelf tool, integration, or custom build.
Need help figuring out the best approach? Our free automation audit covers invoicing as one of the first quick wins we assess. Or explore our automation services to see how we implement these workflows.
Keep Reading
- 10 Processes to Automate in 2026
- How to Automate Client Onboarding
- Workflow Automation for Greek SMEs
Need help putting this into practice? Our Automation Services or Let’s Talk.