I already have a Y-tunnus (Business ID) – Is Pro Light right for me?

Yes, you can! Since a Y-tunnus is personal (you can only have one), we'll use your existing number.

Situation A: Your sole trader (toiminimi) business has been "in the drawer"

If you have a Y-tunnus but haven't used it in a while:

1. Start your order normally in the app.
2. Grant personal authorizations in Suomi.fi.
3. We'll check the situation: If your company has been removed from the registers, we'll file a notification of changes and reactivate it. (Note: Reactivation can take 3–4 weeks).

Situation B: You're switching to us from another accounting firm

Welcome! So that your bookkeeping continues seamlessly, we'll need "opening figures" from your previous accountant.

When are you switching?

• At the start of the year (Recommended): Easiest for everyone. We only need last year's financial statements/income statement.
• Mid-year: We need the income statement for the beginning of the year and the so-called general ledger, so we know what has already been recorded and reported to the tax authorities.

Example: You switch to us starting 1.4. and your VAT period is three months. Your previous accountant handles the VAT return for the period 1.1. - 31.3. In that case, send us your income statement for the start of the year.

Example: You switch to us on 14.6. and your VAT period is one year. We'll handle your VAT return. Send us this year's income statement along with a VAT-itemized journal or general ledger.

Contact our customer service before you get started, and we'll go through together what documents are needed.