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One subscription, several departments: dividing the cost

Short answer

Automating the split of subscription costs links invoice lines to account and department data under approved rules, and keeps the shared fee apart for a decision. With a few fixed subscriptions a spreadsheet or the allocation in your accounting system is enough. At Syntalith the automation costs from €3,000 net and at 400 lines a month pays back in 2.5 months.

How we workDetails ↓

  1. 01Call30 minutes with an engineer, free
  2. 02PrototypeA working system on your process and data, free
  3. 03ImplementationTarget and fixed price in the contract; 50% at signing
  4. 04Acceptance50% once the agreed target is met
net for the automation of one process, build paid once
from €3,000
from signing the contract to acceptance
2–6 weeks
free prototype on your cases
€0

We belong to the OpenAI and Anthropic partner programmes and learn through their official courses. What this means ↓

Author: Syntalith · 3 min read

Example: the morning request inbox
Agent · ready

Statistics

Costs and automation in finance: statistics 2026

85

invoice lines a month are enough for a €3,000 automation to pay back within a year. At 400 lines the payback is 2.5 months. Scenario.

Figures checked: 22 October 2026

Accounts can be assigned, the shared fee waits

An invoice for an app covers the accounts of sales and of the project team, plus a separate platform fee. The company approved assigning accounts by the user's department, but did not settle how to split the shared fee.

The result of the summary
  • Sales accounts

    assigned

    The manager checks which accounts landed in their team, linked to the invoice line.

  • Designers' accounts

    assigned

    Each line leads to the user data the assignment rests on.

  • Platform fee

    waiting for a decision

    Stays apart, with a question to the person responsible for the report rules.

The whole invoice does not land by default in the department of the person whose card paid for it. The sum of department costs and unassigned lines matches the invoice. Once the rule for the shared fee is approved, the report for the same period is produced again, and the earlier version stays available.

Why the report needs data from the billing period

Today's user list differs from the one the invoice covers: someone changed department, or an account was switched off after the month ended. The person preparing the report needs the data and the rule from the billing period. When a department is missing, they see a specific line to clarify with the administrator, without hunting for a difference in the final total.

First check your current system

Microsoft describes cost allocation in Business Central with sources, targets, a validity period and fixed and dynamic allocation bases. If your company uses such features, check with the administrator whether they cover your rules.

Spreadsheet, system or automation
  • A few fixed subscriptions

    a spreadsheet or a report in the system

    €0

  • The rules work, but every month someone joins the invoice with an account export

    linking the sources

    from €3,000

  • Invoice lines described differently by many vendors

    automation with AI to read the lines

    from €3,000

What subscription cost automation costs and when it pays back

Scenario: 400 subscription invoice lines a month
Today
400 lines × 6 min = 40 h (€1,396)
With the system, a person checks the output in 15% of the time
€209
Model, 1 call per case, Claude Sonnet 5.5
€2.07
Cost of one case
€3.49 today, €0.53 with the system
Saving
€1,185 a month

Payback of €3,000

2.5 months

The volume, the time and the checking share are the scenario's assumptions. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat. Model: 1,500 input tokens and 300 output tokens per call at Anthropic's rates, converted at the ECB rate of 1.1205 USD per euro on 22 October 2026.

In the scenario each line saves €2.96, so the automation pays back within a year from about 85 lines a month. Below that threshold, stay with a spreadsheet or the feature of your accounting system.

What to order when the split is rebuilt from scratch every month

The first scope
  1. 01AppOne shared app and its reporting cycle.
  2. 02RulesFinance names the rules and the periods they apply to.
  3. 03DataThe administrator helps find the account data needed for the split.
  4. 04SummaryThe split with the basis of every line and a list of missing decisions.
  5. 05VersionsThe previous report stays available when a manager asks about a change.

The way of splitting stays the company's decision. Start the conversation about automating cost allocation with the subscription for which you last had to ask several people about the right department. If licences sit unused, see the article on increasing AI use after buying licences.

This is how we implement it in companies

All case studies →

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 →
Kuba Koziej, CEO and co-founder of MoreGrowth and board member at Natu.Care

Kuba Koziej

CEO and co-founder, MoreGrowth

„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.”

View the original training review on LinkedIn ↗

This process can go on its own. You will check this on your cases before you pay.Book a free process review (30 min) →

How we build automation and agents

From a conversation to a working system in four steps.

  1. 01 · 30 min

    Free process review

    €0

    You're talking to an engineer. You receive the written plan within 2 business days.

  2. 02 · 5 days

    Free prototype

    €0

    The system works on 20-100 cases that your team has already handled. You see every result.

  3. 03 · 2–16 weeks

    Build

    50%

    Fixed price and goal written in the contract. First installment upon signing.

  4. 04 · after reaching the goal

    Reception

    50%

    You pay the second installment when the system reaches its target on your cases.

How a free prototype is created

Mon.

We set a goal

What result do you consider good?

Tue–Wed

The system is working

It goes through your affairs, one by one.

Thu

We compare

We check every difference with the team's work.

Fri

Result and price

List of errors and fixed implementation price.

You choose the matters. We anonymize them upon request, they stay in the EU and we delete them after the test.

On the market, such a test usually costs from PLN 3,000 to PLN 8,000.

Book a free process review (30 min)

We establish a prototype during a free analysis.

Data checked on October 25, 2026.

„Is my data safe?”

Yes. You choose where they go: from your company account to the model on your server.

  1. 00Employee's private account

    Customer and company data ends up in an account that the company cannot see or control. There is no data processing agreement, so it is a violation of the GDPR. When an employee leaves, the chat history goes with them.

  2. 01ChatGPT or Claude corporate account

    The provider does not use your data to train models. A copy of the queries remains in his logs for up to 30 days.

  3. 02API with zero retention (ZDR)

    The provider processes the request and does not save anything. It requires his consent, we prepare the application together.

  4. 03Processing in the EU

    Queries are counted and stored in Europe: OpenAI in the EU region, Claude via clouds with the EU region.

  5. 04Model at your place

    The open model runs on your server or in your cloud in the EU. The data does not go outside the company.

What we do with every implementation

  • Confidentiality agreement and data processing agreement before we receive any data.
  • You choose the cases for the prototype and we anonymize them upon request.
  • The data stays in the EU and we delete it after the test.
  • Corporate accounts with an administrator on your side.

When data cannot leave the company

The open model runs on your server or in your cloud in the EU. To choose from:

White-tailed eagle
Polish model, SpeakLeash and ACK Cyfronet AGH
PLLUM
Polish model, HIVE consortium commissioned by the Ministry of Digitization
Qwen
Alibaba
GLM
Zhipu AI
DeepSeek
DeepSeek

We select a model for the task and check it on your cases. We run it, tune it and maintain it.

Source: Bielik and PLLuM, ACK Cyfronet AGH ↗ · PLLuM, Ministry of Digitization ↗

Do you have a lot of your own data? We will fine-tune the small model.

  1. 1 Your examples
  2. 2 tuning
  3. 3 test on new cases
  4. 4 model at your place

When you have thousands of similar emails, documents or reports, we teach a small open model based on your examples. It works for you, responds quickly and costs less to maintain than a large model. We measure quality on issues that the model has not seen while learning.

Przemysław and Piotr did it in large programming and consulting companies. Artem did it before and does it today at Syntalith. It's about models on your own infrastructure, tuning and quality measurement.

You choose the protection level during the interview. We sign the data processing agreement before we see any data.Schedule a free analysis →

AI automations

This process can go on its own. You will check this on your cases before you pay.

The system takes over repetitive work from emails, documents and spreadsheets, and hands over uncertain matters to a human. A prototype for 20-100 cases that your team has already handled costs €0. You pay the other half of the price when the system reaches your goal.

See AI automations →
net for the automation of one process, build paid once
from €3,000
from signing the contract to acceptance
2–6 weeks
free prototype on your cases
€0

Questions

  • How do I split a subscription cost between departments?

    Assign account costs by the user's department in the billing period, and keep the shared platform fee apart for a decision by the person responsible for the report. The sum of department costs and unassigned lines must match the invoice.

  • When is a spreadsheet or the accounting system enough?

    With a few fixed subscriptions and rules that work. Microsoft describes cost allocation in Business Central with sources, targets and a validity period, with fixed and dynamic allocation bases.

  • How much does automating the cost split cost?

    At Syntalith from €3,000 net. In the scenario it pays back within a year from about 85 invoice lines a month, and at 400 lines in 2.5 months.

  • What about an account that changed department?

    The report uses account data from the billing period. The company decides how to treat a change of department during the month, and the automation applies that decision and shows a line to clarify when data is missing.

Let's talk

Just write, call or choose a date.

We work fast because we hate corporate cotton wool. We don't have salespeople or managers to keep an eye on managers. You talk immediately to engineers who then build your system. We respect each other's time and yours too.

We will accept 3 more companies by the end of the year.

Mon–Fri 9:00–17:00 CET

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
When we roll out ChatGPT, Claude or Copilot, you buy the licences directly from OpenAI, Anthropic or Microsoft and they invoice you. We add nothing to the licence.
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.