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Invoice Data Extraction AI Agent

AI agent for invoices and waybills: extracts line items, totals and details, checks the counterparty against the tax service and the order, posts to accounting. Edge cases to a manual queue.

“We get hundreds of inbound invoices a month, let’s recognize them” is a common request. But “load an image into a model and grab the total” is a prototype, not an accounting process: the invoice gets posted, an error costs money and a reconciliation call with the supplier. The invoice data extraction agent is built as a governed chain: recognition, detail and line-item extraction, reconciliation against the tax service and the order — and a manual queue where the automation can’t be trusted.

What it does

It receives an invoice or waybill from a channel (mail, supplier portal, scan), recognizes the text and line-item table, extracts details and per-line data for the specific document type. It checks the counterparty against the tax registry, verifies that sums add up and that items match the order. Clean documents with high confidence are posted to accounting automatically; contested ones — a sum mismatch, an unknown tax ID, a murky scan — go to an operator with the problem field already highlighted. Every layer is testable and replaceable, unlike the “drop in, post out” black box.

Where the line is

Any automated invoice pipeline produces errors; the question is whether you see them before posting. So human control isn’t an option but part of the contract: per-field confidence thresholds, a manual reconciliation queue, tracing from the final total down to the exact line of the recognized table. More on the engineering on the AI document processing page; recognizing heterogeneous forms relies on vector search where the meaning of a line item matters more than a per-supplier template.

How the chain works

  1. 01
    Scan recognition · OCR engine

    Turns a photo or PDF invoice into text with coordinates and a line-item table. On clean uniform forms this layer alone is enough.

  2. 02
    Detail and line-item extraction · mid model

    Pulls tax IDs, number and date, VAT-inclusive total and per-line items by meaning rather than a rigid template tied to one supplier.

  3. 03
    Tax-service and order reconciliation · deterministic code

    Checks the counterparty against the tax registry, line-to-total sums and items against the order. Mismatches go to a manual queue.

Integrations

OpenAI GigaChat Google Sheets DaData

+ any external API

Cost calculator

200
3
Tokens, ₽/mo
Development, ₽
Support, ₽/mo

Estimate at a blended per-token rate (input+output). Exact cost depends on context length, number of calls and the share of manual review — we scope it to your process.

related cases

faq

Straight answers

OCR or LLM — what extracts the data from an invoice?
A stack, and the order matters. OCR turns the scan into text with table markup, the model pulls details and line items by meaning, deterministic reconciliation catches errors. On clean uniform forms from one supplier, OCR with rules is enough without a model — cheaper and more predictable than running every invoice through an LLM.
How does the agent verify the counterparty and not let a bogus invoice through?
The extracted tax ID is checked against the official registry: does the legal entity exist, is it not liquidated, do the name and secondary code match. In parallel, line sums are reconciled with the total and items with what was actually ordered. Any mismatch is flagged and sent to manual review rather than posted.
How do you keep extraction errors out of the accounting system?
Through explicit confidence thresholds. Anything below goes to an operator's manual queue, anything above flows into the accounting system through the same contract people use. For each invoice you see which field came from which line and how it passed reconciliation — tracing, not 'the model decided so'.
Where does it pay off?
Inbound invoices and waybills in accounting, order matching in procurement, supplier primary documents. The effect is measured by time to process one document and the share of invoices that reach posting with no human touch — before and after rollout.

Next step

Let's design an AI-native automation layer for your operations.

DBCV