AI invoicing · current features + roadmap

AI invoice — artificial intelligence in Slovak practice.

No sci-fi. No marketing promises. Concrete AI features already working in 1FAKTURA today: PDF OCR import for received invoices, automatic expense categorization, AI line-item suggestions during invoicing. Plus the roadmap of where we're heading in 2026 – 2027.

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OpenAI GPT-4o · GDPR compliant · Lite plan and up
Currently available and planned features

3 features live + 3 on the roadmap.

We started with concrete use cases where AI saves real hours per month — PDF OCR, expense categorization, line-item suggestions. The roadmap expands continuously based on feedback from Slovak sole traders, SMBs and accounting firms.

LIVEPlan: Lite and up

PDF OCR import for received invoices

When you import a received PDF invoice (from a supplier), 1FAKTURA uses the OpenAI vision API to extract IČO, IČ DPH, invoice number, date, base amount, VAT rate and VAT amount. Fields are pre-filled — you just review and confirm. Time saved: 3 – 5 minutes per invoice versus manual entry.

LIVEPlan: Lite and up

Automatic expense categorization

When you attach a document to an expense, the categorizer runs right after field extraction: first a dictionary of typical suppliers and keywords, then a language model if that isn't enough. It proposes one of the fixed categories (Tovar, Služby, Softvér, Nájom, Cestovné, Marketing, …) and you confirm or change it in the dropdown.

LIVEPlan: Lite and up

AI line-item suggestions when issuing invoices

When issuing a new invoice for a repeat client, AI suggests typical line items (consulting, design, hosting…) based on prior documents. Accept with one click or edit.

Q3 2026Plan: Biznis and up

AI line-item text generation

For B2B consultants and creative suppliers: AI turns 1 – 2 short phrases ("Q1 audit + 3 meetings") into a professional description suitable for an invoice. Planned Q3 2026.

Q4 2026Plan: Pro and up

AI anomaly detection on received invoices

For received invoices, AI detects anomalies — unusual amount from a recurring supplier, duplicate invoice, unusual IBAN, suspicious contract description. The accountant gets an alert before booking. Planned Q4 2026.

2027Plan: Pro and up

AI assistant for the Slovak tax system

Chatbot integrated into the dashboard that answers Slovak tax questions ("Am I required to register for VAT at €45,000 turnover?", "What's the rate for restaurant service with alcohol?") with links to slov-lex.sk. Planned 2027.

Real use cases

Where AI saves real hours per month.

4 anonymized scenarios from everyday Slovak practice where AI features directly cut manual work.

Accounting firm — bulk invoice import from clients

Each month you receive PDF documents from 30 clients (received invoices, receipts, contracts). AI extracts fields in seconds; you review and import. From 6 – 10 hours per month on bulk imports, you drop under 1 hour.

E-commerce — COD receipts and shipping

At 200 – 400 orders per month, receipts for shipping, packaging and COD pile up. You attach the document to an expense, a model reads the supplier, the amount and the VAT rate off it and proposes a category. Checking and saving stays with you.

Consultant — historically consistent line items

You invoice 8 recurring clients per month with similar line items. AI learns your pattern ("IT consulting · {mesiac}") and suggests it automatically on new invoices.

Construction firm — anomalous subcontractor invoices

Subcontractor invoices arrive in dozens of different formats. After extraction, 1FAKTURA recomputes the net and the VAT and verifies the IČO check digit and the IBAN — and when something doesn't add up, the document is marked low-confidence and routed to manual review. Duplicate-invoice and unusual-amount detection is in preparation (Q4 2026).

Hot-take for 2026

AI is a copilot. Not an autopilot.

Invoicing is a legal act — decisions about the VAT rate, amount, due date and clauses are your responsibility. AI can pre-fill, suggest, categorize and flag anomalies. The final "save" click is always yours, with full control over the result.

This is our philosophy — and it stays in 2027, even as competitors offer "fully autonomous AI invoicing." Tax liability can't be outsourced to a model.

  • ✓Pre-fills (you confirm)
  • ✓Suggests (you choose)
  • ✓Categorizes (you adjust if needed)
  • ✓Flags anomalies (you decide)
  • ✓NEVER auto-sends an invoice
FAQ about AI invoicing

Questions and answers
about artificial intelligence in 1FAKTURA.

Something doesn't add up or planning a specific use case? Drop us a line — we reply within 4 business hours.

info@1faktura.sk
Are my invoices sent to the OpenAI cloud?
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During PDF OCR import, the PDF contents are sent to the OpenAI vision API (GPT-4o) for field extraction. OpenAI declares GDPR compliance and does not store API inputs for model training (Data Processing Addendum, as of 2026-05). Extraction never runs on its own — it only runs when you attach a file to an expense, so for sensitive documents you can simply fill the fields in manually with no attachment.
Which AI models does 1FAKTURA use?
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For OCR extraction from PDFs and images we use OpenAI GPT-4o (we update the model family alongside OpenAI releases). For expense categorization and line-item suggestions we use smaller and faster models (typically GPT-4o-mini) which give sufficient accuracy at a fraction of the cost. AI calls are always server-side from our infrastructure; we never hand the OpenAI key to the client.
How accurate is AI extraction?
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On standard Slovak invoices (Pohoda, Money S3, KROS exports, or PDFs from cloud invoicing tools) accuracy is 90 – 95 % on all core fields (IČO, amounts, rates, date). On hand-written or unusual formats it drops to 70 – 85 %. As a user you always review before saving — AI only pre-fills, never automatically commits final values.
What if AI fills a field wrong?
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When pre-filled fields show, you simply edit them manually and save — your value is what gets stored; the AI never overwrites it. When the VAT arithmetic, the IBAN or the IČO on the document don't check out, 1FAKTURA lowers the extraction confidence and routes the document to manual review, so you see the problem before saving. For documents where you'd rather not use extraction at all, fill the expense in manually with no attachment.
Are AI features included in the plan price?
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Yes, AI features are included in the Lite plan and higher with no extra charge for AI calls. Internally we measure AI call costs per customer and at 10 × average usage we negotiate a custom enterprise rate. For most sole traders and SMBs the cost of AI calls is negligible.
What's the difference between AI and classic OCR (Tesseract)?
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Classic OCR (Tesseract) extracts text from an image — raw text without structure. AI vision models (GPT-4o) understand context and return structured fields (IČO = X, amount = Y) directly. For Slovak invoices with varied layouts, the AI approach is 5 – 10× more accurate than Tesseract + regex rules combined. For internal debug we keep Tesseract as a fallback when an AI call fails.
Are you planning AI generation of the entire invoice?
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Not in the short term. AI is a copilot for us, not an autopilot — the final decision (which VAT rate, what amount to invoice, what due date) stays with the user. AI can suggest, pre-fill, categorize and flag anomalies, but invoicing is a legal act and responsibility for its correctness lies with the entrepreneur. This stance stays in 2027.
Does AI work for cross-border invoices?
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Yes, extraction handles invoices issued in Czech, English or German — the model is not limited by language. The VAT ID field, however, expects the Slovak format (SK + 10 digits) and Slovak rates, so a foreign VAT ID and a foreign rate are things you fill in yourself. The tax regime — § 15, § 43 or reverse charge — is not suggested by the AI; that decision stays with you.
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