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Entrepreneur's Guide · Kasvuvoima Oy

From idea to financial statements.

Starting a company feels big. It is a big thing, but it isn't complicated once you break it into pieces. This guide walks the whole journey, step by step, in plain language. No jargon, no scare tactics. Just what's worth knowing, in the order things actually come up, written for founders building a business in Finland.

Free and freely shareable
Who this is for: you, if you're thinking about starting your own company in Finland, or you've just started one. No Finnish required to read it. How to use it: you don't need to read everything at once. Jump straight to the stage you're at. The table of contents is right below.

This guide is based on official Finnish sources, such as the Suomi.fi service, guidance from the Finnish Tax Administration (Vero.fi), and Business Finland's funding guidance. Always check the current details from the official sources, every link below points to the English page where one exists.

Part 1 · Before you start

The idea, testing it, and making sure the numbers hold up in daylight.

The idea and shaping it

It all starts with an idea. But an idea isn't a business yet, it's a promise you have to make concrete: whose problem you solve, and who is willing to pay for it.

At this stage you don't need a logo, a website, or a company. You need clarity. Write it down: what problem, for whom, and why you. If you can fit that into one sentence a friend understands, you're further along than most.

Common mistakes
  • Falling in love with the solution before knowing there's a problem.
  • Spending months on a logo and a name before anyone has said "I'd buy that".
  • Keeping the idea secret, and never asking anyone whether it interests them.

How Kasvuvoima can helpIf you'd like a sounding board to sharpen the idea, just ask us, we reply by email, free of charge. See services.

Official sources for this stage

The Suomi.fi service offers an official checklist on skills, finances and dealings with the authorities, including a dedicated section for foreign entrepreneurs.

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Testing the idea

Before you put money and months on the line, find out cheaply: does anyone actually want this? This is the entrepreneur's most important, and most underrated, skill.

Talk to potential customers. Don't ask "would this be nice?", everyone says yes to be polite. Ask what they do now, what annoys them about it, and how much the problem costs them. A small test page and one targeted ad tell you more than a hundred opinions.

What's worth doing at this stage
  • Interview 5–10 potential customers, listen, don't sell.
  • Build a simple test page and see if anyone leaves their contact details.
  • Test whether people will actually pay, a pre-order or a waiting list tells you the truth.
Common mistakes
  • Leading questions that only invite nice answers.
  • Reading likes and compliments as demand, even when nobody buys.
  • Never testing willingness to pay at all.

How Kasvuvoima can helpIf you need it, we'll set up a lightweight test page and a small ad experiment within a week, so you get real data on demand. See services.

Official sources for this stage

Planning your business idea and market is covered in Suomi.fi's business-planning section, including assessing demand, competition and pricing.

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Business model and pricing

Now we look at the numbers. Don't tense up, this doesn't take an economics degree. You just need to understand three things: where the money comes from, where it goes, and whether anything is left at the bottom.

Price by value, not by cost alone. Work out a rough margin: what's left when you subtract the direct costs from a sale. Build a simple 12-month forecast, not exact, just a sense of direction. The key question: how long does the cash last if sales start slowly?

Common mistakes
  • Pricing too low because "that's how I'll get into the market", and the margin vanishes.
  • Not knowing how much it costs to acquire a single customer.
  • Never calculating the cash runway, and the money runs out by surprise.

How Kasvuvoima can helpWe'll work out pricing and a light forecast together, so you start with the numbers at your back. See the packages.

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Part 2 · Setting up and the foundation

The official birth of the company, funding, and getting the ground rules right.

Setting up the company

This is the moment your idea officially becomes a company. It sounds like bureaucracy, and it is a little, but in Finland the steps are clear and can be done online.

The key decisions
  • Business form. A toiminimi (sole trader) is the fastest and lightest, but you're personally liable for debts. An osakeyhtiö / Oy (limited company) separates you from the business, liability is limited to the capital you invest. Most founders aiming to grow choose the Oy.
  • Registrations. Decide which registers you join: the ALV (VAT) register, the prepayment register, and possibly the employer register.
  • Bank and invoicing. Get a business account and e-invoicing in place from the start, always keep the company's money and your own money apart.
Finland specifics

PRH and YTJ. A company is founded and registered with the Finnish Patent and Registration Office (PRH) together with the Tax Administration through the YTJ (Business Information System). At the same time you get a Y-tunnus (business ID), your company's personal identity number. Both a sole trader and a limited company can be set up electronically.

A limited company has no minimum share capital. The earlier 2,500-euro requirement was removed, so you can found an Oy with no starting capital. The limited liability still stands.

Business forms. The most common for a new entrepreneur are the toiminimi (sole trader, light, personal liability) and the osakeyhtiö / Oy (limited company, limited liability, a little more administration). The avoin yhtiö (general partnership) and kommandiittiyhtiö (limited partnership) are rarer for new digital businesses.

Setup fees and processing times change, check the current amounts straight from the source: PRH – Setting up a company and YTJ.fi.

Common mistakes
  • Choosing the wrong business form for your liability and tax situation.
  • Forgetting VAT or employer registration when it's mandatory.
  • Mixing your own and the company's money in one account, and tangling the bookkeeping.

How Kasvuvoima can helpWe guide the setup, the register choices and getting invoicing running, by email, no forced meetings. See the packages.

Official sources for this stage

An official comparison of the different business forms and setup guidance is on Suomi.fi; the start-up notification goes to PRH and the Tax Administration.

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Funding

Not every company needs outside money. But if you do, Finland has a surprising number of options, and many founders leave them unused simply because they don't know about them.

The most common funding sources
  • Your own money and people close to you, the most common way to start small.
  • Starttiraha (start-up grant), support for the entrepreneur's own livelihood in the early stage of the business.
  • Finnvera, the state financing company: loans and guarantees that complement the bank.
  • Business Finland, grants and loans for innovative and internationalising companies.
  • Bank loan, for a new company, usually alongside a Finnvera guarantee and a business plan.
Finland specifics

Starttiraha (start-up grant) is applied for before you start the business, and it's granted by the employment services. Timing matters, you generally can't get it retroactively. Amounts, duration and eligibility change: check the current amounts and terms from the source Job Market Finland (Työmarkkinatori).

Finnvera offers, for example, a start guarantee that helps you secure a bank loan. Terms and products: finnvera.fi (in English).

Business Finland funds new, innovative and internationalising business in particular. Check the current amounts and criteria: businessfinland.fi.

Estimate your YEL (entrepreneur's pension insurance) contribution and your taxes in advance with free calculators: Verotyökalut.fi

Common mistakes
  • The financial figures in the application are thin or unrealistic.
  • Applying for support that doesn't fit your actual activity.
  • Not applying for the start-up grant in time, and losing the right to it.

How Kasvuvoima can helpWe help you put together a fundable plan and forecast to back your applications. See services.

Official sources for this stage

According to Suomi.fi the start-up grant should be applied for before registering the company; Business Finland funds research, development and innovation projects in particular, rather than the act of founding itself.

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Legal matters and data protection

This part scares a lot of people, but it needn't. You don't need a lawyer for every decision, you need the basic building blocks in place, and the sense to know when to ask for help.

Keep customer contracts clear and in writing. If you handle people's personal data, and almost everyone does, you need a privacy policy and a clear legal basis for the processing. If you sell to consumers online, remember the rules on distance selling and the right of withdrawal.

Finland & EU specifics

GDPR. The EU's data protection regulation applies to anyone who handles personal data. In practice: a privacy policy, a lawful basis for processing, and a contract with the partners who process data for you. Guidance: tietosuoja.fi (Data Protection Ombudsman, in English).

Consumer protection. Consumer trade has its own rules, such as the right of withdrawal in distance selling. Never use made-up reviews or unfounded promises. More: Finnish Competition and Consumer Authority (KKV).

AI. If you use a chatbot or other AI at the customer interface, tell users openly that they're dealing with AI.

This guide is not legal advice. It's worth having important contracts reviewed by a lawyer.

Common mistakes
  • No privacy policy and no contracts with the partners who process data.
  • Made-up reviews or exaggerated promises, illegal, and a risk to your reputation.
  • Ignoring the rules of consumer trade entirely.

How Kasvuvoima can helpYou get ready-made templates for a privacy policy and contracts, plus your GDPR settings sorted. See services.

Official sources for this stage

Suomi.fi covers a company's contracts and obligations; the Data Protection Ombudsman provides official GDPR guidance.

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Part 3 · Visibility and sales

How people find you, and how interest turns into deals.

Brand and website

A brand isn't a logo. It's the promise of what the customer gets, and the feeling they're left with. The logo and colours can come later. A clear message is needed right away.

Choose a name you're allowed to register and that has a free domain. Build a website that answers three questions in seconds: what you sell, to whom, and what the customer should do next. One clear page beats ten confusing ones.

Finland specifics

Check that the name is free in the trade register before you get attached to it, PRH. While you're at it, reserve a suitable .fi domain.

Common mistakes
  • The name is already taken or clashes with a trademark.
  • The message is generic, it doesn't say for whom and why.
  • The site is built before your own offering is clear.

How Kasvuvoima can helpWe build a clear, fast website that gets your point across immediately, as part of a package. See services.

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Sales and customers

Sales isn't pushing. It's helping, showing that you understand the customer's problem and know how to solve it. And above all: that you keep what you promise.

Keep leads in one place, not buried in your inbox. Reply fast, many deals are won by whoever gets there first. Make the offer clearly and always agree the next step out loud. A simple way to track follow-ups is enough at the start.

Common mistakes
  • Leads scattered across your head and your mailbox.
  • Enquiries go unanswered, or get answered too late.
  • No follow-up after the offer, and the deal slips both parties' minds.

How Kasvuvoima can helpWe set up a lightweight CRM and automated follow-up so not a single lead gets lost. See the packages.

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Marketing

Marketing is simple but not easy: get the right people to find you, and measure what works. The rest is repetition and fine-tuning.

Start with one channel, not five. Pick the one where your customers already are, search, social media or email. Measure from day one: if you don't know what brings customers, you don't know where to put the money. Profitability decides, not the number of clicks.

Common mistakes
  • Money burns on ads without the results being measured.
  • Trying to be everywhere at once, and nowhere properly.
  • Tracking clicks, not euros.

How Kasvuvoima can helpWe handle one channel at a time and report results in euros, not in clicks. See services.

Official sources for this stage

Suomi.fi emphasises identifying potential customers and assessing demand, competition and price level, the same applies to sales (stage 8) and marketing.

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Part 4 · Running it and the finances

The everyday processes, and the part that keeps the company alive, the finances.

Everyday operations and processes

Once the first customers have arrived, the question changes: how do I do this again without all of it living in my head? This is where companies that grow split from the ones that burn out.

Write down the recurring steps of work, even a simple checklist will do. Automate the dull, repetitive tasks. The more that runs without you, the more freely you can focus on what genuinely needs you.

Common mistakes
  • All the knowledge and know-how lives only in the entrepreneur's head.
  • The same manual routines repeat week after week.
  • Nothing is documented, covering for someone is impossible.

How Kasvuvoima can helpWe build automations on EU servers and documented processes that cut down manual work. See services.

Official sources for this stage

Suomi.fi's section on developing the business covers management, quality and developing competence as your operations grow.

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Bookkeeping

Bookkeeping isn't optional. But it isn't frightening either, once the routine is in place. The idea is simple: every euro in and out is recorded, and the tax is handled on time.

What bookkeeping is about
  • Storing and recording vouchers, that is, receipts and invoices.
  • Invoicing and tracking payments.
  • Filing VAT returns on time.
  • Wages and reporting them, if you have employees.
Finland specifics

Obligation to keep accounts. Every company is required to keep accounts. For a limited company that means double-entry bookkeeping. For a sole trader the requirements are lighter, but bookkeeping is still needed.

ALV (value added tax / VAT). Most companies are liable for VAT once a certain turnover threshold is exceeded, and VAT is reported and paid regularly in OmaVero (MyTax). The standard rate, the reduced rates and the turnover threshold change, check the current amounts and rates: Vero.fi – VAT.

YEL, yrittäjän eläkevakuutus (entrepreneur's pension insurance). YEL is mandatory once your entrepreneurial activity meets the conditions set in law. It's the foundation of your pension and social security, not just a cost. The lower limit and the contributions change: check the current amounts: Vero.fi and your own pension insurance company.

Ennakkovero (prepayment tax). A company pays tax in advance based on its estimated profit. You can update the estimate in OmaVero (MyTax) if the result changes.

Tulorekisteri (Incomes Register). Wages paid are reported to the Incomes Register soon after payment. More: Incomes Register.

Check your VAT calculations quickly with a VAT calculator: Verotyökalut.fi

Common mistakes
  • The VAT return is late, which brings a late-filing penalty.
  • Receipts go missing, and deductions can't be made.
  • Your own and the company's money get mixed up.

How Kasvuvoima can helpWe handle your monthly bookkeeping, VAT returns and invoicing for you. Read more about bookkeeping or see the packages.

Official sources for this stage

According to the Tax Administration, a new company registers with PRH and the Tax Administration and may join the prepayment and VAT registers; prepayment tax is set on the basis of the estimated result.

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Financial steering

Bookkeeping tells you what already happened. Financial steering tells you where you're heading. This is the difference between surviving and growing.

Watch the cash, it's the most common reason a new company falls over, and at the same time the easiest to prevent. Compare actuals against the plan once a month. You don't need to be a finance person to spot the warning signs in time, as long as the numbers are laid out clearly.

Common mistakes
  • No cash forecast, the money runs out by surprise.
  • Actuals aren't compared to the budget, so deviations are noticed too late.
  • Decisions are made on gut feeling, not on numbers.

How Kasvuvoima can helpWe deliver a monthly financial report, clearly in euros, so you can see the situation at a glance. See the packages.

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Part 5 · Closing the financial year

The year is wrapped up: the numbers are closed and the financial statements are drawn up.

Closing the financial year

At the end of the financial year, the bookkeeping is put in order ready for the financial statements. This is a checkpoint, you make sure the numbers add up before they're locked.

What happens at this stage
  • Checking that all vouchers have been recorded.
  • Allocating income and expenses to the correct financial year (accruals).
  • Making depreciation and reconciling account balances.
  • Making sure the bank account and the bookkeeping match.
Common mistakes
  • Doing it in a rush at the last minute, which creates errors.
  • Accruals or depreciation are forgotten.
  • Accounts aren't reconciled, and errors carry into the financial statements.

How Kasvuvoima can helpWe handle the year-end close methodically as part of the bookkeeping, nothing is left hanging. See services.

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Financial statements

This is where the whole journey comes together: an idea has become a company with a full financial year behind it. The tilinpäätös (annual financial statements) tell you how it went, and they're an official obligation at the same time.

What the financial statements contain
  • Income statement, shows whether the year produced a profit or a loss.
  • Balance sheet, describes the company's assets and liabilities at the end of the year.
  • Notes, complement and explain the figures.
  • Tax return, the company's result is reported to the Tax Administration.
Finland specifics

A limited company's financial statements are filed with PRH. An Oy must register its financial statements in the trade register within a set deadline after the financial year ends. Being late can lead to penalties. Current deadlines and guidance: PRH – Financial statements.

Corporate income tax is 20% of a limited company's taxable result. The general meeting confirms the financial statements, and the decisions are documented. Filing the tax return and the deadlines: Vero.fi – Businesses and corporations.

Dividend and corporate-tax calculators can be found at Verotyökalut.fi.

Common mistakes
  • The financial statements are filed with PRH late, which can bring sanctions.
  • Notes or meeting minutes are missing.
  • The tax return is done hastily at the last moment.

How Kasvuvoima can helpWe prepare the financial statements and the tax return, and handle the PRH filing, start to finish. See the packages.

Official sources for this stage

A limited company registers its financial statements with PRH within the deadline, and the company's result is reported to the Tax Administration on a tax return.

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Sources · Official and reliable

Straight to the right authority, and one practical tool for crunching the numbers.

Official sources and useful links

These are official, reliable sources. Each link points to the English page where one exists; a few Finnish-only pages are marked. Always check the current amounts, limits and guidance directly from the authority.

Useful tool

Verotyökalut.fi

Over 118 Finnish tax calculators (VAT, YEL, dividends, wages, investor taxes). Calculate your taxes in advance before you make decisions. The calculators are number-based, and the built-in AI assistant supports English.

Open the calculators →
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The idea is already a big step.

No one makes this journey all at once, and you don't have to do it alone. You've already taken the most important step: starting. The rest comes stage by stage, and there's help for every stage.

This guide is free and freely shareable. Pass it on to anyone you know who's thinking about starting their own company.

Or write to us directly: info@kasvuvoimaoy.fi

We reply within 12 hours on business days. No forced meetings, no commitment.