How to File Trade Register Notifications in Finland (PRH), Step‑by‑step (2026)

Since 1 January 2026, every company entered in Finland’s Trade Register must submit its notifications and applications to the Finnish Patent and Registration Office (PRH) online, paper forms are no longer accepted except in narrow, PRH‑defined special cases. Understanding how to file Trade Register notifications in Finland in 2026 is now essential for company secretaries, general counsel, founders and accountants who manage corporate filings for limited‑liability companies (Oy/Oyj), cooperatives, partnerships and branches of foreign enterprises. This guide sets out the full filing procedure, eligibility, required documents, step‑by‑step filing instructions, the timeline from submission to registration, applicable fees, and common pitfalls, so that responsible officers can comply with PRH’s mandatory Trade Register online filing requirements with confidence.

Overview of the Process and Who It Applies To

Finland’s Trade Register Act (564/2023) provides the statutory framework for the Trade Register maintained by PRH. The register records the formation, structural changes, management appointments, share‑capital amendments and dissolution of entities carrying on business in Finland. When PRH announced the mandatory shift to online filing from 1 January 2026, the practical effect was immediate: all notifications that previously could be submitted on printed Y‑forms must now be filed electronically through the YTJ Business Information System or the PRH online service.

The obligation applies to all entity types entered in the Trade Register, including:

• Private and public limited‑liability companies (Oy / Oyj).
• Cooperatives, general partnerships and limited partnerships.
• Branches of foreign enterprises operating in Finland.
• Housing companies and mutual real‑estate companies.

Private traders (sole proprietorships, toiminimi) are partly exempt from certain online‑only requirements, but all other registered entities must comply. The two main filing channels are the YTJ online service at ytj.fi and the PRH online filing portal. Both services require the filer to authenticate with a Finnish electronic identification method. Notifications cover a wide spectrum, new incorporations, changes of directors or managing directors, amendments to articles of association, changes to registered office, share‑capital increases, beneficial‑owner updates, and the annual filing of financial statements.

At a glance, the Trade Register online filing process follows this sequence:

1. Gather corporate authorisations and electronic IDs.
2. Select the correct Y‑form at YTJ (Y1, Y2, Y6 or other).
3. Complete the form and attach required documents in PDF.
4. Submit, pay any applicable PRH fee, and download the confirmation.
5. Monitor the PRH case file until registration is confirmed.
6. Notify the Finnish Tax Administration (Vero) of any tax‑relevant changes.

Eligibility and Prerequisites for Trade Register Online Filing

Before initiating a filing, the responsible officer must verify three things: who is authorised to file, what form of electronic identification is required, and whether the corporate change in question has been validly resolved internally.

Authorisation to file. Notifications must be signed by an authorised person, typically a member of the board of directors, the managing director, or a representative holding a valid power of attorney (POA). The board resolution that approves the corporate change should explicitly name the person(s) authorised to file the notification with PRH. If an external agent, such as an accountant or law firm, files on the company’s behalf, a written POA must be attached.

Electronic identification. YTJ and PRH online services require Finnish‑issued electronic identification: a Finnish bank‑ID, a mobile certificate issued by a Finnish operator, or an identification card with a chip. Non‑Finnish individuals who do not hold any of these credentials face a practical barrier. PRH has published a permit application form that allows persons permanently residing outside the EEA to apply for authorisation to file, subject to PRH’s approval.

Internal corporate resolution. Every substantive change, director appointments, articles amendments, share‑capital decisions, must first be resolved at the appropriate corporate body (board meeting, shareholders’ meeting or, in partnerships, by the partners). Signed minutes or a written resolution must be available as a PDF attachment before filing can proceed.

Foreign Companies and Branches, Special Rules

A foreign enterprise that operates through a Finnish branch must use the YTJ Y‑forms designated for foreign enterprises (including the Y1 form with its foreign‑enterprise annexes). If none of the branch’s authorised signatories hold a Finnish electronic ID, the PRH permit application process for persons residing outside the EEA must be completed first. Foreign‑language supporting documents, articles of association, certificates of incorporation, extracts from overseas commercial registers, generally require a certified Finnish or Swedish translation and, depending on the country of origin, apostille or consular legalisation. Industry observers expect that foreign branch filing remains the most common source of procedural delay, precisely because of these additional authentication and translation requirements.

Step‑by‑Step Procedure: How to File Trade Register Notifications in Finland (2026)

The following filing steps apply to the standard online procedure through YTJ. Each step identifies who is responsible and the typical time involved.

Step 1, Prepare the Company Pre‑Flight

Confirm that the underlying corporate decision has been duly made and documented. Obtain signed board minutes or a shareholders’ resolution in PDF format. Identify the person who will file, they must hold a valid Finnish electronic ID. If an external agent will file, prepare a signed power of attorney. Verify that the company’s current Trade Register data (registered office, business sector code, existing directors) is accurate; errors in existing data can cause PRH to return the filing.

Collect all supporting attachments in advance: updated articles of association (if amended), auditor’s statements (if required for share‑capital changes), and the beneficial‑owner notification form (if beneficial‑owner data has changed). All documents should be in PDF format.

Step 2, Log In to YTJ and Select the Correct Notification Form

Navigate to the YTJ Business Information System at ytj.fi. Authenticate using your Finnish bank‑ID or mobile certificate. Select the notification category that matches the corporate event:

• Form Y1, new company registration or notification by a foreign enterprise.
• Form Y2, notifications of change for a limited‑liability company (e.g., new directors, change of registered office, articles amendment).
• Form Y6, notifications related to the discontinuation of operations or deregistration.

YTJ’s interface will prompt the filer to select a sub‑category (e.g., “change of board members,” “change of articles of association”). Selecting the wrong form or sub‑category is one of the most common causes of rejection, so confirm the notification type against the PRH forms and instructions page before proceeding.

Step 3, Complete the Form and Attach Documents

Fill in the required fields. YTJ pre‑populates certain data (company name, Business ID / Y‑tunnus, registered office) from the existing register record. The filer must enter the new information, for example, the full legal name, date of birth and nationality of each new director, or the exact amended wording of an articles clause.

Upload attachments. Required attachments vary by notification type but typically include:

• Signed board minutes or shareholders’ resolution (PDF).
• Power of attorney if an agent files (PDF, signed).
• Updated articles of association if amended (PDF).
• Beneficial‑owner notification form if ownership data has changed (PDF).
• Auditor’s statement where required by law (e.g., share‑capital increase).

Double‑check that every attachment is legible, correctly named and within PRH’s file‑size limits. Incomplete or corrupt files will result in a request for rectification.

Step 4, Submit, Pay Any Fee, and Download the Receipt

Once all fields and attachments are complete, submit the notification. YTJ will generate an immediate confirmation with a case reference number. Download or screenshot this confirmation, it serves as proof of filing date. If the notification attracts a PRH registration fee, YTJ will direct the filer to payment. Fees vary by notification type and are published on the PRH forms page. Some notifications (e.g., beneficial‑owner updates) carry no fee, while others (e.g., new company registration or articles amendments) require payment before PRH begins processing.

Step 5, Handle Rejections and Additional PRH Queries

After submission, PRH reviews the filing. If documents are missing or information is inconsistent, PRH will send a request for rectification electronically. The filer should monitor the YTJ message centre regularly and respond promptly. Failure to rectify within the time PRH specifies may result in the filing being rejected outright, requiring the entire process to restart. For complex filings, such as mergers, demergers or share‑capital reductions, PRH may request additional evidence or legal opinions.

Required Documents and Information for Trade Register Online Filing

The table below lists the core documents needed for most Trade Register notifications. Specific notification types may require additional materials, always consult the PRH forms and instructions page for the relevant Y‑form before filing.

For foreign‑language documents, a certified translation into Finnish or Swedish is generally required. Documents originating from countries that are not party to the Hague Apostille Convention may require full consular legalisation. The likely practical effect of these requirements is that foreign branches and companies with non‑Finnish officers should begin the translation and legalisation process well in advance of the filing deadline.

Timeline and Key Deadlines for Trade Register Notifications

The overarching deadline is clear: from 1 January 2026, all Trade Register notifications must be submitted online. Beyond this, several time‑bound obligations apply.

Early indications suggest that PRH processing times in the first half of 2026 have been broadly within the 21‑day target for straightforward filings, though capacity constraints at peak periods (e.g., post‑annual‑general‑meeting season) can extend turnaround. Officers should factor in additional time for rectification requests if attachments are incomplete.

Costs, Fees and Tax Considerations

PRH charges a registration fee for most Trade Register notifications. Fee amounts vary by notification type and are published on the PRH forms page. Some filings, notably beneficial‑owner notifications, are free of charge. Fees are paid electronically at the point of submission through YTJ.

Companies should also consider indirect costs: engaging an external agent or law firm to handle the filing, obtaining updated electronic IDs, and preparing certified translations. For companies with multiple notification events per year, particularly those undergoing restructurings or multi‑step share‑capital changes, these costs accumulate and should be budgeted at the start of the financial year.

What Changes in 2026: The PRH Online Filing Mandate

The single most significant change for companies interacting with the Finnish Trade Register in 2026 is PRH’s requirement that all notifications and applications be submitted electronically. This requirement took effect on 1 January 2026 and was announced by PRH on its official guidance page. Paper Y‑forms, previously accepted alongside electronic submissions, are no longer processed except in narrow special cases defined by PRH (for example, certain filings by entities in liquidation or where a statutory provision expressly requires a paper submission).

The statutory foundation for this change is the Trade Register Act (564/2023), which grants PRH the authority to determine the permissible filing methods and sets out the processing framework, including the 21‑day target for creating a register entry once all documentation is in order.

Concurrent changes introduced by the Finnish Tax Administration (Vero) for the 2026 tax year also interact with Trade Register filings. Vero’s 2026 guidance addresses updated business‑sector classification codes and reporting‑window adjustments. Where a Trade Register notification involves a change that also affects the company’s tax registration, such as a new business sector or a change in the financial year, the company must ensure that both PRH and Vero are notified within the applicable deadlines.

For non‑Finnish signatories, PRH online filing 2026 creates an additional procedural layer: the permit application for persons permanently residing outside the EEA must be completed and approved before any online filing can be submitted. Companies with international boards should address this well before a notifiable event arises.

Common Pitfalls and How to Avoid Them

• Selecting the wrong Y‑form or sub‑category. YTJ offers multiple form variants (Y1, Y2, Y6 and sub‑categories). Filing on the wrong form results in rejection. Always confirm the correct form on the PRH forms and instructions page before starting.
• Unsigned or incomplete board minutes. PRH requires minutes that are signed (physically or electronically) and that clearly identify the resolution and the authorised filer. Unsigned or undated minutes will trigger a rectification request.
• Missing or expired power of attorney. If an external agent files, the POA must be current, signed and, for foreign principals, properly legalised and translated. An expired or unsigned POA will halt processing.
• Incorrect file formats or corrupt uploads. All attachments must be in PDF format within PRH’s size limits. Scanned images that are illegible or files that fail to upload properly are a frequent cause of delay.
• Failing to update beneficial‑owner data. Companies often overlook the separate obligation to notify PRH of changes to actual beneficial owners. This notification is distinct from the main Y‑form filing and must be completed whenever ownership or control structures change.
• Not notifying Vero of tax‑relevant changes. A Trade Register notification does not automatically update the company’s tax records. Changes to business sector, financial year, VAT status or registered address must be separately reported to the Finnish Tax Administration within the required window.
• Ignoring PRH rectification requests. When PRH issues a request for rectification, the filer must respond within the stated deadline. Failure to respond results in the filing being rejected, requiring the process to restart from scratch.

Conclusion

Finland’s mandatory Trade Register online filing regime, in effect since 1 January 2026, represents a permanent shift in how companies interact with PRH. Every officer responsible for corporate filings, whether for a domestic Oy, an international Oyj or a Finnish branch of a foreign enterprise, must now maintain valid electronic identification, ensure that corporate authorisations are properly documented, and follow the YTJ submission process precisely. The procedural steps themselves are straightforward when approached methodically: prepare the pre‑flight checklist, select the correct Y‑form, attach complete and properly formatted documents, submit, pay any applicable fee, and monitor the case until PRH confirms registration.

What remains critical is attention to detail. Selecting the wrong form, omitting a signature, uploading an incomplete PDF, or failing to update beneficial‑owner data separately are the errors that convert a 30‑minute filing into weeks of rectification. Companies with international boards or foreign parent entities face an additional layer of complexity, the permit application process, certified translations and legalisation requirements all demand advance planning.

For companies that need to file Trade Register notifications in Finland in 2026 and want to ensure full compliance from the outset, engaging experienced corporate counsel can prevent costly delays and mitigate the risk of penalties for non‑compliance.

Sources

1. PRH, Mandatory Online Filing Announcement and Guidance
2. YTJ (Business Information System), Online Filing and Y‑Forms
3. Finlex, Trade Register Act (564/2023), English Translation
4. PRH, Forms and Instructions (Y‑Forms)
5. Finnish Tax Administration (Vero), 2026 Tax Changes and Business Reporting Guidance
6. Suomi.fi, Trade Register Information Services