Contact

Tell us about the company and we will come back with a written proposal.

We answer business enquiries within one business day. If your question is urgent — a filing deadline this week, an enquiry from the Tax Administration — say so in the first line and call as well.

Enquiry form

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Optional: you may also send me occasional updates on Finnish accounting and tax deadlines. This is separate consent under Art. 6(1)(a) GDPR, it is not required to send this enquiry, and it can be withdrawn at any time.

How we handle this message. Abacus Accounting Oy is the controller of the data you enter here. We process it to answer your enquiry and to take steps at your request before entering into a contract — GDPR Art. 6(1)(b) and Art. 6(1)(f). No consent is required for that, and none is being asked for above. Enquiries are kept for 24 months from our last contact and are not used for automated decision-making or sold to anyone. You may object at any time under Art. 21. Full detail: privacy policy.

Direct contact

Email: admin@abacusaccountingoy.com
Telephone: +44 7440 319979
Office hours: Mon–Fri 9–16 EET/EEST

Please do not send confidential accounting records by email before we have agreed an engagement — we will tell you the secure route once we do.

Registered office

Abacus Accounting Oy
Harjukatu 30
05900 Hyvinkää
Finland

Visits by appointment. Post sent to this address reaches us.

Invoicing details

VAT valid in VIES

Legal name: Abacus Accounting Oy
Business ID: 0115454-6
EU VAT number: FI01154546
Billing address: Harjukatu 30, 05900 Hyvinkää

Checked 23 August 2026 Validate the VAT number →