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Corosar

Fixed-price bookkeeping, invoicing and tax filing for sole proprietors in Finland, from 59 € per month

Helsinki, FinlandFounded 2021corosar.fiWebsite technologies

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Highlights

  • New on EvolcAdded 2026-10-28

About Corosar

Corosar is an accounting firm (tilitoimisto) that handles bookkeeping, invoicing and annual tax returns for sole proprietors (toiminimi) in Finland. The service also covers YEL pension arrangements and mileage and per-diem expense tools.

Its clients are sole traders from fields including IT and creative services, wellbeing and beauty, construction, consulting and e-commerce. Pricing is a fixed monthly fee, starting at 59 € per month with VAT at 0%, and the firm offers a free transfer of bookkeeping from another accounting firm. The website states it serves over 200 sole proprietors.

Corosar Oy was founded on 12 July 2021 and is registered in Helsinki, where it has an office that clients can visit. The website names its founder, Ilja. Onboarding is described as taking six weeks.

Product: Monthly-fee bookkeeping, invoicing and annual tax return service for Finnish sole proprietors, including YEL arrangements.

Jobs at Corosar

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