4works Palvelut

4works Palvelut Oy runs an invoicing service for freelance workers who bill clients without their own company or business ID. The service also handles VAT and withholding-tax reporting to the Finnish Tax Administration and payroll reporting to the Income Register, and pays the worker's wage once the client has paid the invoice.

Its customers are light entrepreneurs (kevytyrittäjät), sole traders on the PRO plan, and groups that bill a client together on one invoice. Revenue comes from a service fee: 1.0–3.6% on the Lite and Basic plans, decreasing as billed volume rises, and 3% plus VAT on PRO. The company also operates tekijat.4works.fi, a free marketplace where workers create profiles and households and companies post tasks. Its Poseidon AI tool matches posted tasks with workers registered in the invoicing service.

The company was founded on 19 October 2023 and is registered in Helsinki, Finland. The website cites a Finnish Tax Administration decision dated 25 September 2026 under which it offers invoicing for light entrepreneurs billing up to €20,000 per year, and states that invoicing abroad is possible.

Product: Invoicing and payout service for freelancers (Lite, Basic and PRO plans), free freelancer marketplace tekijat.4works.fi, and Poseidon AI matching of task posts to workers.