What sources does Taxxa search?

Taxxa searches a continuously updated collection of more than one million pages from tax authorities, government publications, legislation and case law across the European jurisdictions it covers. Every response cites the underlying material, so a professional can inspect the rule, its jurisdiction and whether it is current before relying on the result.

Can Taxxa work with a team’s own documents?

Yes. Research can combine the public knowledge base with a team’s own PDF, DOCX, CSV and TXT files in one workspace. That makes it possible to compare a client document with the relevant guidance, trace a conclusion to its source and prepare a draft without losing the evidence that supports it.

Who is Taxxa built for?

Accountants, auditors, tax advisors, payroll specialists, bookkeepers and advisory teams working across European jurisdictions. Shared workspaces keep research available to colleagues, and citations make review easier.

Where is customer data stored, and is it used to train models?

Customer data stays in the European Union and is never used to train language models.

Does Taxxa replace professional judgement?

No. Taxxa is a research and drafting workspace. It helps professionals reach an informed starting point faster; the professional still reviews the evidence and makes the final decision. It does not file returns, post bookkeeping entries or give legal advice.

FinlandVero

Vero sets filing deadlines and a new account number for developers

Developer notice 04/2026 sets 2027 prepayment direct-transfer deadlines, a 14–15 November API outage, and a Danske-to-OP account change effective 1 December 2026.

By Taxxa AI OyPublished 23 September 2026

Tax

The 23 September developer notice 04/2026, addressed to software developers, packs three things practitioners act on: new Ilmoitin.fi filing capabilitiesVero and 2027 prepayment direct-transfer deadlinesVero, a November system outageVero, and a bank-account change taking effect 1 December 2026Vero.

Ilmoitin.fi released a new version on 22 September 2026Vero. It allows review and submission of sole-trader and partnership income tax returns (forms 2, 2Y, 2C, 5, 6A, 7K, 7L) for tax year 2026Vero. For 2027 advance collection it opens direct transfers: generally liable pension recipients' transfers (VKESSELE) and restricted-liability pension recipients' transfers (RVKSSELE)Vero, with requests and pension data for advance collection due by 6 November 2026Vero; pension basic-card response files arrive 30 November 2026Vero while pension data via the interface is due 17 November 2026Vero. Wage withholding-data transfers (VKESSPAE) take requests until 15 February 2027Vero, the response file must be fetched by 27 February 2027Vero, and the data is retrievable from about 11 December 2026Vero. YEL and MYEL earned-income data (VKTYOSVA) for 2026 advance collection needs the estimated 2027 earned income by 6 November 2026Vero. Example files were updated on the Esimerkkiaineistot pages, and a sent file can no longer be reopened from the archive in production.

Vero APIs close on Saturday 14 November at 00:00Vero and reopen by Sunday 15 November at 17:00 at the latest, possibly earlierVero. Returns can be submitted normally during the outageVero but are processed only after itVero; the arrival date is the submission dateVero. A new Status API for tracking client return processing inside accounting software goes into production by the end of OctoberVero, with documentation in the API portal after release. The interfaces for fetching agriculture (2), forestry (2C) and business (5) return data, currently limited to banks in the production pilotVero, open to other operators with the 14–15 November system updateVero, when Suomi.fi authorisation checks are due to be introducedVero; use requires the 'Veroasioiden hoito tai Verotukseen liittyvien tietojen ilmoittaminen, päivittäminen ja hakeminen rajapinnan kautta' authorisationVero and returns the latest data published to OmaVeroVero.

Verohallinto's Danske Bank account is replaced by an OP accountVero: the new OP account number takes effect 1 December 2026Vero and the Danske account leaves use entirely after a six-month transition on 31 May 2027Vero, while the Nordea account is unchangedVero. Anyone who stored the Danske account in online banking or accounting software should update it as soon as possible after 1 December 2026Vero; paying in OmaVero, by e-invoice or e-invoicing needs no actionVero. The legal and practical detail sits in Verohallinto's dedicated account-change notice: payments to the outgoing FI56-prefixed Danske account still reach Verohallinto until 31 May 2027Vero and are returned to the payer from 1 June 2027Vero, with late-payment interest if the due date passes in the meantimeVero.

The calendar also notes a Teams clinic for developers on Friday 2 October 2026 at 09:00Vero and an online cooperation day on 17 November 2026Vero, plus a certificate-service user survey open until 9 October 2026Vero.

Update the stored Verohallinto Danske Bank account in online banking or accounting software to the new OP account number as soon as possible after 1 December 2026; check the 2027 advance-collection direct-transfer request deadlines in Ilmoitin.fi.

Sources

FinlandVero

Vero sets filing deadlines and a new account number for developers

Developer notice 04/2026 sets 2027 prepayment direct-transfer deadlines, a 14–15 November API outage, and a Danske-to-OP account change effective 1 December 2026.

By Taxxa AI OyPublished 23 September 2026

Tax