Starting a construction business in Finland: your first job

You know how to do good work, keep a site organised and finish what you have agreed to do. Perhaps someone has already asked whether you could take on a renovation and send them an invoice. Working for yourself starts to feel like a real possibility.

Whether that first job makes a profit depends largely on decisions you make before opening your toolbox. What does the price include? Who buys the materials? How many hours can you actually bill, and when will the money arrive?

This guide covers the practical steps to starting out in construction in Finland. You might begin with individual assignments or plan to build your own construction company. Either way, you need a clear process for agreeing on the work, delivering it and getting paid.

Ready to invoice for your first construction job? Explore Bisse.fi’s service for construction professionals and find out how to invoice without your own Finnish Business ID, or Y-tunnus.

Contents

1. Decide what you offer and who you work for
2. Light entrepreneurship, sole trader or limited company?
3. Base your price on billable hours
4. Agree on the scope before you start
5. Arrange site documents and reporting
6. Check the VAT treatment for each customer
7. Match your insurance to the work
8. Plan for the wait between doing the work and getting paid
9. Turn your first job into a recommendation
10. Checklist before your first day

1. Decide what you offer and who you work for

“I do construction work” tells a potential client very little. “I do interior painting and surface preparation in the Tampere area” makes it much easier to know when to call you.

Start with work you can deliver to a standard and timetable you are confident about. That might mean interior renovations, fitted furniture installation or a particular stage of a larger contractor’s project. Decide whether you sell only your own labour or also supply materials and coordinate other trades.

The type of client affects the job too. A household needs a clear quote and a total price for the renovation. A construction company may require specific site references, approved timesheets and certain documents before you start.

Check any task-specific qualifications and authorisations when preparing your quote. For example, Tukes explains the requirements for electrical contracting. Years of renovation experience do not automatically qualify you for every specialist task. Agree in advance on any other professionals you will need. Official guidance linked in this article is in Finnish.

2. Light entrepreneurship, sole trader or limited company?

Choose a business model based on the work you intend to do, the equipment and materials you need, and the responsibilities you will take on. Here, light entrepreneurship means using an invoicing service without your own Business ID. It is not a separate legal form of business.

If you are ready to set up a business, explore Bisse.fi’s sole trader service or accounting for limited companies. Review the registrations, tax prepayments and VAT treatment you need before sending your first invoice.

An invoicing service cannot turn an employment relationship into self-employment. If the work meets the legal criteria for employment, it is treated as employment regardless of the contract’s title. Relevant factors include working personally for another party, remuneration, and direction and supervision. Unclear cases require an overall assessment. See the occupational safety and health authority’s guidance on employment relationships.

If you intend to become a full-time entrepreneur and are considering the start-up grant, starttiraha, contact your local employment authority early. Your application must reach the authority before you start full-time business activities. The grant is discretionary and supports your personal living costs during the initial period.

3. Base your price on billable hours

An entrepreneur’s hourly rate is not directly comparable to an employee’s hourly wage. Your invoicing must also cover the vehicle, tools, insurance, service or accounting fees and time you cannot charge to a client separately.

Quote visits, collecting materials, travel and invoicing all take time. To price your work, estimate how many hours clients will actually pay for.

Example: the same income target, fewer billable hours

Suppose you need to invoice €6,000 a month excluding VAT. This covers running costs, YEL pension insurance, your personal income target before income tax, and a reserve for holidays and quieter periods. In this example, project materials and subcontractors are charged separately.

• With 100 billable hours, your required rate is €60 an hour excluding VAT.
• With 80 billable hours, it rises to €75 an hour excluding VAT.

These figures illustrate the calculation; they are not suggested market rates. Your costs, the complexity of the work and the agreed scope determine the price. Quote consumer prices inclusive of VAT and agreed additional charges.

Work out your starting point with the hourly rate calculator, in Finnish. If you travel between sites, also read our guide to business vehicle expenses. Track vehicle costs for both pricing and taxation.

4. Agree on the scope before you start

A written contract helps both parties understand what the client is paying for. Record the site, scope, materials and who buys them, schedule, price, payment stages and how additional work is approved. Include protection of surfaces, waste removal and the final clean-up.

“Painting the living room” might mean painting the ceiling and removing old wallpaper to your customer. If your quote only covers painting prepared walls, say so clearly.

Distinguish between a fixed contract price, an estimate and hourly work. For a consumer renovation, a fixed price cannot be exceeded for the agreed work. An estimate may generally be exceeded by no more than 15% for a justified reason. That margin is not an automatic addition to the bill. The Finnish Competition and Consumer Authority’s renovation contract guide explains the differences and includes a small-renovation contract template.

If the customer requests another task during the job, agree on its price and effect on the schedule before doing it. Keep a record of the approval. The same applies when you uncover unexpected repairs beneath an old surface.

For general contract terms, read our guide to client agreements for light entrepreneurs. Choose a contract template suitable for the size of the actual project and the type of client.

5. Arrange site documents and reporting

Ask the client for a list of required site documents before you start. Your first morning should not be spent trying to find missing certificates.

Tax number, photo ID and site induction

People working on a shared construction site must have their tax number entered in the public tax number register. Having a tax number printed on your tax card does not by itself mean it has been registered.

A visible photo ID showing your tax number is generally required on site. Check the requirements and exceptions in the construction safety guidance. If you need a Valtti card, see Bisse.fi’s ordering instructions.

Also check which safety training and task-specific permits the client requires. The Occupational Safety Card supports induction, but you still need an introduction to the risks and procedures at each site.

Contractor liability documents: tilaajavastuu

Where Finland’s contractor liability legislation applies, the party commissioning the work must check that its contract partner has met its statutory obligations before signing the contract. Depending on the situation, the documents cover registrations, taxes, pension insurance, employment terms and occupational health care. The authority’s contractor liability guidance contains the full requirements.

The documents are simpler for a light entrepreneur working alone without a Business ID. If you carry out the construction work yourself and are not entered in the Tax Administration’s business registers or the Trade Register, these two documents are sufficient for the contractor liability checks when the law applies:

1. A free-form written statement about the missing registrations. State that you are not entered in the Prepayment Register, VAT Register, Employer Register or Trade Register.
2. A certificate of tax payment or a tax debt certificate. Obtain your personal certificate from MyTax, called OmaVero in Finnish. Without a Business ID, you are not listed in the public tax debt register, so the client needs the certificate directly from you.

Supply these documents yourself. The invoicing service cannot issue them on your behalf. See the authority’s specific FAQ on documents required from a light entrepreneur.

If an employee you have hired performs the work, further documents are needed on the employee’s pension insurance, applicable collective agreement or main employment terms, and occupational health care arrangements. Construction work also requires a certificate of accident insurance. If you buy subcontracting services yourself, you may have obligations as the party commissioning the work.

Construction contract and employee reports

Construction reports to the Tax Administration are separate from contractor liability checks. When a business buys construction work covered by the reporting obligation, contract details must be reported if the individual contract exceeds €15,000 excluding VAT.

The main contractor is usually responsible for reporting worker details on a shared construction site. Self-employed workers are included when the reporting conditions are met. The threshold for worker reports is assessed using the value of the whole site. A small contract of your own therefore does not automatically exempt you from supplying information. Agree with the main contractor on how to provide your details and any changes.

6. Check the VAT treatment for each customer

In construction, the buyer’s status can determine who reports and pays VAT. The reverse charge does not apply to every construction invoice.

A typical reverse-charge case is the sale of construction services in Finland to a business that sells such services on more than an occasional basis. The rules also cover labour hire and certain other buyer situations subject to conditions. The seller must check those conditions; a customer’s Business ID alone is not enough.

The construction reverse charge does not apply to a private customer’s renovation. Where the seller is VAT-registered and the standard rate applies, 25.5% VAT, or €255, is added to work priced at €1,000 excluding VAT. The customer pays €1,255.

If the reverse charge applies, the seller does not add VAT to the invoice. In addition to the usual invoice details, it must show the buyer’s Business ID and a reverse-charge statement. You can cite section 8c of Finland’s Value Added Tax Act, or AVL 8 c §. “VAT 0%” alone is not sufficient. Reverse-charge sales must also be included on the VAT return.

Check your situation against the Tax Administration’s construction VAT guidance. When invoicing through Bisse, provide accurate buyer and job details and resolve any uncertainty with customer support before sending the invoice.

7. Match your insurance to the work

Liability insurance and personal accident cover serve different purposes. Review the policy terms for the tasks you intend to carry out. Check limits, deductibles and exclusions, including the treatment of property you are working on and the cost of correcting faulty work.

Bisse.fi’s Pro package includes liability and accident insurance subject to the policy terms. Read the cover details and conditions and confirm that the insurance is suitable for your job before starting.

Assess YEL pension insurance separately. The obligation can also apply to a light entrepreneur using an invoicing service when the statutory conditions are met. The Työeläke.fi guide helps you assess whether you need it.

YEL income measures the value of your own work contribution. It is not the same as turnover or business profit. It affects other social security benefits as well as your pension. Read about how YEL income is determined and include the contributions in your pricing.

8. Plan for the wait between doing the work and getting paid

A job that looks profitable can still strain your finances if you pay for materials now but receive payment weeks later. Before agreeing to the contract, draw up a simple timeline: when purchases are paid for, when the work can be invoiced and when payment is due.

For longer jobs, agree on payment stages tied to completed work. In a consumer renovation, it is generally sensible to link payments to work that has been done and accepted. The consumer authority highlights the risks of advance payments for customers, so avoid relying on a large customer advance to cover a cash shortfall.

Get invoicing details, the site number and any purchase order reference in advance. Find out who approves your hours and when. A missing approval can delay invoicing even after you have finished the work.

When using an invoicing service, check when you will be paid and whether payment depends on the customer paying first. Sending an invoice does not mean the money is already available to spend. Keep a reserve for taxes, insurance contributions and quieter weeks too.

9. Turn your first job into a recommendation

You do not need a major advertising campaign to find your first clients. Tell previous contacts and local construction companies exactly what you do, where you work and when you are available. Show examples with the customer’s permission and respond clearly to requests for quotes.

When a job is finished, inspect it with the client. Record anything that needs correcting and agree on when you will do it. A proper handover also makes the invoice easier to understand: the client knows what has been delivered.

Ask permission to use photos of the finished work and ask whether the customer would be willing to recommend you. The next client can make a more confident decision when they see your work and understand what it is like to work with you.

Vladyslav Zhurba’s customer story is one example of starting gradually. He began with construction assignments in Finland through Bisse and later started his own construction company.

10. Checklist before your first day

1. You know what you will do yourself and when another professional is needed.
2. The scope, price, materials, schedule and approval of additional work are agreed in writing.
3. Your price covers costs and time you cannot bill separately.
4. You have checked the business model, necessary registrations and invoice VAT treatment.
5. Required site IDs, qualifications, documents and induction are arranged.
6. You have checked insurance suitability and whether YEL is required.
7. You know who handles construction reports and what information you must supply.
8. Invoicing details and payment stages are agreed, with enough money to cover the waiting period.

English version published on 1 October 2026. The Finnish article was published on 27 September 2026. Pricing figures are illustrative examples.

Already have your first client? Explore Bisse.fi and choose an invoicing and accounting service that suits your work.