Swedish construction main contractors (huvudentreprenörer) and their site and project managers.
ÄTA (Ändrings-, Tilläggs- och Avgående arbeten) is change-order work a Swedish main contractor is entitled to invoice on top of the contract. It is the biggest quiet margin leak in construction: ordered verbally on site, never written down, and forgotten at invoicing. ÄTA Finder reads a byggmötesprotokoll, an email thread or diary notes and returns every candidate ÄTA — what it is, who ordered it, when, and whether it was only agreed verbally — so you can notify it in writing before the right to payment lapses under AB 04/ABT 06.
By hand
scanned by eye, and the forgotten ones never get billed
With Tedrix
a full ÄTA list in under a minute
Catching a single forgotten ÄTA on a project typically covers the tool for a year — estimated, and it depends on your projects.
Estimated from a typical workflow — your numbers depend on volume.
What it does
A main contractor's biggest silent loss isn't the errors it makes — it's the extra work it does and never bills. Changes and additions are agreed verbally at the site meeting, the site manager does them 'i farten', and by invoicing time nobody remembers how many hours it was. That work is already paid for in labour and material; unbilled, it comes straight off the margin.
ÄTA Finder reads the document where those changes surface — the byggmötesprotokoll, the email thread, the diary — and pulls out every candidate ÄTA as a clean list: what the work is, who ordered it, when, on what basis, and any price stated. It flags the ones only agreed verbally so you notify them in writing 'utan dröjsmål', and it never invents a price. You confirm and invoice; the tool does the reading.
What goes in
A site-meeting protocol (byggmötesprotokoll), an email thread or diary notes — as PDF, photo or pasted text. Optionally your contract, to sharpen what is extra versus already in scope.
What you get back
A structured list of candidate ÄTA — type (change / addition / deduction), description, who ordered it, date, basis and any stated price — plus an act-before-you-lose-it list flagging the verbal ones to notify without delay.
What the output looks like
Example: byggmötesprotokoll no. 4, a preschool project
The request that comes in
§4 The client wants the entrance floor changed from tile to limestone. Price to follow.
Extra stormwater drain at the entrance, ordered verbally on site 5 June. Not yet priced.
Painting of the storage building is dropped — credit approx. SEK 15,000.
§7 Client wants 5 extra power sockets in the cloakroom (verbal).
What Tedrix hands back
Illustrative example — you run the tool on your own documents.
No account, no card · your document is never stored
What it handles
- Reads byggmötesprotokoll, email threads and diary notes (PDF, photo or pasted text).
- Separates ändrings-, tilläggs- and avgående arbeten and marks how sure it is each is billable.
- Flags every verbally-agreed ÄTA to notify in writing utan dröjsmål under AB 04 / ABT 06.
- Never invents a price, quantity or date — missing data becomes a flag, not a guess.
- Optional contract upload sharpens the contract-versus-ÄTA call.
How it runs
Upload the protocol
Drop in the byggmötesprotokoll, email thread or diary — PDF, photo or pasted text. Add the contract too if you want a sharper read.
The tool reads it
It finds every passage where work is added, changed or removed relative to the original scope and structures it.
You get the ÄTA list
Candidate ÄTA with what, who, when and basis, plus a list of the verbal ones to notify in writing before the right lapses.
You confirm and invoice
You check each against the contract, notify the client and invoice. The tool prepares; you decide.
Common questions
Does it decide what counts as an ÄTA?
No. It surfaces candidates and how sure it is, with a pointer to where each is found. You confirm each against the contract and decide what to notify and invoice — it never asserts something is billable on its own.
What about the notification deadline?
Under AB 04 / ABT 06 an ÄTA must be notified to the client 'utan dröjsmål' or the right to payment can lapse. Any candidate that is only verbal gets flagged to notify in writing without delay.
Will it invent prices or hours?
Never. If the document doesn't state a price, quantity or date, it's marked 'EJ ANGIVET' and flagged for you to fill in — a missing number is a flag, not a guess.
Are my project documents stored?
No. Documents are read for the single analysis and never written to disk or a database.
Try it free on your own document
Run one of your real documents through it and see the result for yourself. Keep the tool only if it earns its place — your 7-day no-card trial starts once you're set up.
Try it on your own document — free, no loginNo account, no card · your document is never stored · or start a 7-day trial