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Finance and controlling · Rollout scenario · Updated

KSeF in controlling: the document that arrived after the report

The system shows the controller invoices from KSeF, Poland's national e-invoicing system, and explanations that arrived after the report was closed, with their effect on the figures. The controller decides.

Automation, paid once
from €3,000 net
  • Test on your process: €0
  • You pay 50% after acceptance

How much does KSeF automation in controlling cost, and when does it pay back?

Short answer

KSeF automation in controlling costs from €3,000 net. In our scenario it pays back in 2 months. Today, catching 300 changes after the report is closed costs €1,745 a month by hand. With the system, the same work costs €265. The finance team sets how items go into the books and the report. The system makes sure no change goes unnoticed. The test on your process is free.

Statistics

KSeF statistics 2026

Figures checked: 22 October 2026

Cost today · Scenario

What tracking changes after the close costs you today

€1,745

a month for catching 300 changes after the report is closed

Payback: 2 mo.

In your company

  • Small company

    150 changes · €873 a month

    4.1 mo. payback

  • Mid-sized company

    300 changes · €1,745 a month

    2 mo. payback

  • Group of companies

    1,000 changes · €5,817 a month

    0.6 mo. payback

The team gets back about 42 hours of work a month, or 5 working days, and the company €17,760 a year. We count after the time a person spends checking and after the model cost.

Source: Eurostat, hourly labour costs 2025 (2026) ↗

How we calculate it

300 × 10 min = 50 h × €34.90 = €1,745 a month. With the system, a person checks the output in 15% of the old time (€262) and the model costs €3.67. That leaves €265. The saving is €1,480 a month, so €3,000 pays back in 2 months.

Assumptions: 10 minutes per document or explanation after the close and checking in 15% of the old time are our assumptions. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat, for companies with 10 or more employees. Model cost: Claude Sonnet 5.5, about 4,000 + 600 tokens per change, at the ECB rate of 1.1205 USD per euro on 22 October 2026.

Book a free process review (30 min)

We will calculate it on your month-end close.

How it works

What changes after the report is closed

Today

  1. The report is closed, and an invoice appears in KSeF

    Team

  2. The controller finds out by chance

    Team

  3. Looks for which report lines it changes

    Team

  4. Asks accounting how to record it

    Team

  5. Corrects the report by hand

    Team

With the system

  1. Catches documents dated after the close

    System

  2. Shows which report lines they change

    AI

  3. Describes the source and the amount of the change

    AI

  4. The controller decides on the correction

    Person

  5. Report versions keep a record of changes

    System

What stays with people: The finance team sets how items go into the books and the report. The system makes sure no change goes unnoticed.

Client results.

All projects →
foap.comcustomer service

foap.com customer service: 95% of replies are sent automatically.

Users from several countries write to foap.com, in several languages. The system reads the entire conversation and the terms of that person, and then sends a response in that person's language. Questions about money and exceptions go to the team with a ready draft, so they have to check and send them.

the system sends the answers itself, without human typing
95%
time from the arrival of the e-mail to the ready response (median)
30 s
e-mails that require a response receive a ready-made draft
100%
less work for every 1000 answers (estimate)
47 h

Data from foap.com production, October 20-21, 2026. Estimate: 3 minutes for handwritten response.

How foap.com customer service works →
Sample messages. Money matters always come to the person.

Other implementations

jaktako.design

studio projektowe

−87%

Time to look for new customers, every day

4 hours → 30 min

approx. 73 hours less per month (21 days of work)

according to the studio

How the agent loop works →
Signature Estates

real estate

approx. −90%

Operator time spent browsing portals, per day

2–3 hours → 20 min

approx. 45 hours less per month (21 days of work)

respect · contact the seller 5 minutes after the announcement

How the agent finds property listings →

Who already works this way

Our systems already work for clients

What this scope builds on

An executive report with no unsourced figures

We built a system that assembles the executive report only from figures in the sources you name and gives the source of each one. The same source trail shows what an invoice changed after the close.

See the report system →

Client review

“We started with my own AI agent. During the training that followed, I learned to build new applications myself. Today I am bringing this way of working with AI into my business. Working with Syntalith gave me exactly the skills and tools I needed.”

Kuba Koziej, CEO and co-founder of MoreGrowth and board member at Natu.CareKuba KoziejCEO and co-founder, MoreGrowthView the original training review on LinkedIn ↗

How to start

How to start. The first two steps are free.

  1. 1 · 30 min

    Free process review

    €0

    An engineer works out the cost of the process with you. Written plan within 2 working days.

  2. 2 · 5 days

    Test on your process

    €0

    We run 20 to 100 cases your team has already handled.

  3. 3 · 2–6 weeks

    Build

    from €3,000

    Fixed price in the contract. 50% on signing, 50% after acceptance on your test set.

Book a free process review (30 min)

or call+48 888 78 48 78WhatsAppMon–Fri 9:00–17:00 CET

You will see the slots in your time zone.

Included in the build

  • Catching documents dated after the close
  • The effect of each change on report lines
  • The source of every change
  • A version trail for the report

What happens to your data

  • You choose the test cases. We anonymise them on request.
  • They stay in the EU and we delete them after the test.
  • We sign the NDA and the data processing agreement before we receive anything.

After acceptance you keep the code, the test set and the documentation. You pay for licences and model usage directly to the provider. With several departments or companies, the engineer suggests a Process Audit from €600 net: a map of the flow and a fixed quote. We deduct the audit fee from a build signed within 3 months.

Questions

  • How much does tracking changes after the close in controlling cost?

    From €3,000 net, paid once. After the 5-day test the build takes 2 to 6 weeks. You get a fixed price before the contract: 50% on signing and 50% after acceptance on your own documents.

  • Does the system correct the report on its own?

    The system shows the change, its source and its effect. The controller or accounting decides on the correction and how to record it.

  • When does it not pay off?

    Below 51 changes a month the payback takes more than a year. Then ChatGPT or Claude for the finance department is enough, from €1,150 net.

  • Would a period lock in our ERP be enough?

    A lock stops the posting, but it does not tell the controller that an invoice is waiting and what it will change. The system makes sense when the executive report is built outside the accounting software.

  • What do we need to prepare?

    A template of the executive report, the closing dates from recent months and 20 to 100 documents that arrived after the close.

What our OpenAI and Anthropic partnerships mean for you.

OpenAI makes ChatGPT and Anthropic makes Claude. We belong to the partnership programs of both companies, so we work with their tools every day and learn from the creators themselves.

OpenAI Select PartnerClaude Partner Network
01We will select a tool for the task
We implement both ChatGPT and Claude. We check both on your documents, and you choose the one that makes fewer corrections and saves more time.
02Knowledge straight from the creators
We learn from official OpenAI and Anthropic courses and materials. Your team learns about the features and settings that work today.
03Licenses without our margin
You buy accounts directly from OpenAI or Anthropic and receive an invoice from them. We do not add anything to the license.
04Certified engineers
On the team, we have an AWS certification in machine learning and an Anthropic certification in systems architecture on Claude.

Participation in programs does not mean that OpenAI or Anthropic endorses our services.