
Prepare the books
Supplier invoices are coded, validated and presented as proposals.
NewSIE4 export of approved vouchersSee integrations
Styrra prepares the books, answers questions about the numbers and waits for your approval. Right inside your accounting system.
Start freeEXPLORE THE ACTUAL WORKSPACE

Invoices, documents and journal entries together in the actual workspace. Actual screenshot from the test environment, Nordvik Studio AB.
Built for the systems you already use
For companies that run their own finances and for firms with many clients.
For companies that want to make better decisions, faster.

Supplier invoices are coded, validated and presented as proposals.

Ask about results, balances and accounts. Answers use posted entries.


The record is one click away, from invoice to voucher.

You choose what Styrra may do alone and what needs approval.
Styrra only uses what your system allows. A read-only system never receives automatic postings; approved vouchers go back as a SIE4 file instead.
SIE4 and the test environment work today. Fortnox and Bokio are coming soon.
Learn more“A proposal is only a proposal until you have approved it.”
Styrra’s first ruleApplies to every company and plan
How control works

Every amount is counted in whole öre, without rounding errors between proposal and posting.
Posted vouchers never change. Corrections are reversals, with the history kept.
Text in an invoice or email can never change a permission, a policy or a payee.
Validated before anything is posted.



Balance, accounts, period, VAT and duplicates are checked for every proposal.
Read, propose and post. Every tool has a fixed tier.
Who did what and when, from first record to final approval.

“Everything Styrra does lands in the audit log: proposals, checks, approvals and postings.”
The audit logActual view from the test environment
Day-to-day bookkeeping is still largely manual: invoices to code, receipts to match and questions that take half a day to answer. The information exists. The time does not.
Styrra is an AI team that works inside your accounting system. It prepares the books, checks them and presents proposals. You decide how far it may go on its own.
We are starting in Sweden with SIE4 and Fortnox, and building connections to more systems. Companies and firms use the same workspace.

Start with SIE4 or the test environment today.

Credits shared across client companies.

Permissions, policy and audit log.
Accounting systems, SIE4 and sources.

Pay for work, not for seats.
Bearing, Styrra Yellow and typography.
Finance is a sequence of small decisions: the right account, the right period, the right VAT. Styrra takes them one at a time, and shows why.
Every proposal comes with its record and its checks, so you can approve with confidence.

The same workspace on your phone. Ask a question, review a proposal, approve.
Try it on mobile


Leave your email and we will book a walkthrough. We start with your questions, not a sales deck.