Changing accountants is one of those business decisions that often gets delayed far longer than it should. Whether the relationship has quietly stopped working or the business has simply grown beyond what the current firm can handle, switching accounting firms in Finland is more straightforward than most business owners expect. With the right preparation and a clear understanding of the process, the transition can be smooth, legally sound, and genuinely beneficial for the business going forward.
This guide walks through the practical side of making the switch, from recognising the warning signs to setting up a new accounting partnership that actually works. If you have been searching for how to change accountants in Finland without disrupting your operations, this is the right place to start.
Common reasons businesses outgrow their accounting firm
Most businesses do not switch accounting firms because of a dramatic falling out. The more common story is a gradual mismatch that builds over time. A firm that was perfectly suited to a sole trader or early-stage startup may simply not have the capacity, expertise, or systems to support a growing company with more complex needs.
Some of the most frequent reasons Finnish businesses decide to look elsewhere include:
- Slow or inconsistent communication, with emails and calls going unanswered for days
- Errors in VAT reporting, payroll, or annual accounts that create extra work and stress
- A lack of proactive advice, where the accountant only reacts rather than anticipates
- Outdated systems or manual processes that do not integrate with modern bookkeeping software
- Pricing that no longer reflects the value being delivered
- The firm not understanding the specific industry or business model well enough
Recognising these patterns early matters. The longer a mismatched relationship continues, the more catching up a new firm will need to do. Acting decisively when the signs appear is almost always better than waiting for a crisis.
When is the right time to make the switch?
Timing a Finnish accounting firm switch thoughtfully can save a significant amount of administrative friction. The single best time to change is immediately after the annual accounts have been finalised and filed. This creates a clean break with a complete set of records handed over, and the new firm starts fresh at the beginning of a new financial period.
In Finland, the financial year for most companies ends on 31 December, making January or February an ideal window to begin the transition. That said, mid-year switches are entirely possible and sometimes necessary. If the relationship has broken down or errors are accumulating, waiting until year-end can cause more harm than good.
Before initiating anything, it is worth checking the notice period in the current accounting contract. Finnish service agreements for accounting firms typically include a notice period of one to three months, and this needs to be respected to avoid disputes or penalty clauses. Reviewing the contract carefully before sending any notice is an important first step.
What to look for in a new Finnish accounting firm
Not all accounting services in Finland are created equal, and finding the right fit requires looking beyond price. The most important factor is whether the firm genuinely understands the Finnish regulatory environment, including the requirements set out in the Finnish Accounting Act (kirjanpitolaki 1336/1997) and the relevant provisions under the Value Added Tax Act (arvonlisäverolaki 1501/1993).
Key qualities to evaluate
A good accounting firm should be authorised through the Finnish Association of Accounting Firms (Taloushallintoliitto), which sets professional standards and requires member firms to pass quality audits. This membership is a meaningful quality signal rather than just a badge.
Beyond credentials, look for a firm that uses modern cloud-based accounting platforms such as Procountor, Netvisor, or Visma, which integrate well with Finnish tax authority systems and the OmaVero portal. Compatibility with existing software reduces transition friction considerably.
It is also worth asking directly about the firm’s experience with your specific business type. A firm that primarily serves retail businesses will approach a construction company or a SaaS startup very differently. Industry familiarity translates into faster onboarding and more relevant advice.
Questions worth asking before signing
- Who will be the named accountant responsible for the account day-to-day?
- What is the expected response time for routine queries?
- How do they handle peak periods such as VAT deadlines and year-end?
- What does the onboarding process look like in practice?
How the handover process works in practice
The mechanics of an accounting firm switch in Finland follow a fairly consistent pattern, and understanding the steps in advance removes most of the anxiety around the process.
Once notice has been given to the current firm, the outgoing accountant is legally and professionally obligated to hand over all documents and records belonging to the client. Under Finnish law, accounting records must be retained for six years following the end of the financial year in question, and the client owns these records, not the accounting firm. This means the current firm cannot withhold them.
The handover package typically includes:
- The general ledger and sub-ledgers for all open periods
- VAT records and filed declarations
- Payroll records and pension contribution documentation
- Filed tax returns and any correspondence with the Finnish Tax Administration (Verohallinto)
- Bank reconciliations and any outstanding items
- Annual accounts and audit reports where applicable
The new firm will conduct an opening review of these records to understand the current financial position, identify any outstanding obligations, and flag anything that needs correcting. This review period is normal and should be factored into the transition timeline.
Legal and contractual considerations in Finland
Finnish contract law under the oikeustoimilaki (228/1929) governs accounting service agreements in the same way as other commercial contracts. This means the terms of the existing agreement, particularly around notice periods, data handling, and liability, are enforceable and need to be respected.
One area that catches some business owners off guard is the handling of access credentials. If the accounting firm has set up or manages access to OmaVero, the Business Information System (YTJ), or payroll portals on behalf of the business, these access rights need to be transferred or revoked cleanly during the handover. The Finnish Tax Administration’s OmaVero portal allows businesses to manage authorisations directly, and this should be updated as part of the transition.
It is also worth noting that any outstanding invoices from the current firm should be settled before or during the handover. Disputes over unpaid fees can complicate the release of records, even though the firm is legally required to return client documents regardless of payment status. Keeping the financial relationship clean makes the process simpler for everyone.
How to set your new accounting partnership up for success
The quality of a new accounting relationship is shaped significantly by how it starts. Taking time to onboard the new firm properly, rather than simply handing over a folder of documents and expecting everything to run itself, makes a meaningful difference to the long-term outcome.
Start with a structured kickoff conversation that covers the business model, revenue streams, key suppliers and customers, payroll structure, and any known upcoming changes such as new hires, expansion, or financing rounds. The more context the new firm has from day one, the more useful their advice will be from the outset.
Agree on communication rhythms early. How often will there be a check-in call or report? Who is the primary contact on both sides? What is the expected turnaround for routine queries? Setting these expectations clearly at the start prevents the slow drift that often causes dissatisfaction down the line.
At Firmally, we work with businesses across Finland to make exactly this kind of transition as smooth as possible. We handle the record review, the system setup, and the ongoing compliance calendar so that the switch feels like an upgrade rather than a disruption. If you are ready to explore what a better accounting partnership looks like, get in touch with us and we will take it from there.
