Foreign broker taxation: forms 9A and 16B

When you buy and sell securities through a foreign remote broker, such as an investment app, the broker usually does not report your sales to the Finnish Tax Administration. In that case you report the sales, gains and losses yourself in your tax return. This guide covers the forms, the difference between a domestic and a foreign broker and the tax rules according to the Tax Administration's guidance.

Not investment advice. Investing involves risk. Pankkitutka compares costs and does not recommend individual investments or service providers. The value of investments can rise and fall, and you can lose the money you invest.

Which brokers do you report yourself?

In Pankkitutka's data, finnishTaxReporting is false for the following providers, meaning that under the Tax Administration's guidance you report the sales yourself. This does not mean that information is not exchanged between authorities.

Forms

• If shares or other securities have been sold through a foreign remote broker, you must report the gains and losses yourself; the Tax Administration also receives information on trades made abroad and monitors their reporting. (Verohallinto: Ilmoita tulot sijoituksista, updated 10 March 2026; authority)
• Sales of securities, including those made through a foreign remote broker, are reported on form 9A; other capital income received through a remote broker, as well as foreign dividends and foreign tax paid, on form 16B. (Verohallinto: Ilmoita tulot sijoituksista, updated 10 March 2026; authority)
• Gains from CFD contracts are added together and reported in OmaVero under Foreign income, other capital income received from abroad (on paper, form 16B). (Verohallinto: Ilmoita tulot sijoituksista, updated 10 March 2026; authority)

Domestic brokers

Sales made through Finnish banks and brokers are reported to the Tax Administration, and the information is pre-filled in your tax return.

• Investment firms, foreign investment firms and other investment service providers, as well as credit institutions and account operators, must report their customers' securities sales to the Tax Administration in an annual return; this information is pre-filled on the tax return. (Verohallinto: Vuosi-ilmoitus arvopapereiden ostoista ja myynneistä, täyttöohje 2026, 2026; authority)
• The Tax Administration usually receives information on securities sales from banks, custodians and fund management companies in Finland and abroad, but, for example, acquisition details may be missing; you must check and complete the information. (Verohallinto: Arvopaperien myyntivoitot (täyttöohje), updated 27 September 2023; authority)

Tax rates and small sales

• The capital income tax rate is 30% up to €30,000 and 34% on the part above €30,000. (Verohallinto: Osakesäästötili, updated 1 January 2026; authority)
• Capital gains are tax-free if the total selling prices of shares sold during the calendar year are at most €1,000; you still need to check the sales on your tax return. (Verohallinto: Ilmoita tulot sijoituksista, updated 10 March 2026; authority)
• A capital loss is deducted first from capital gains of the same year and, from 2016 onwards, also from other capital income in the same year and the five following years. A loss is not deductible if both the acquisition costs and the selling prices total at most €1,000. (Verohallinto, syventävä ohje: Arvopaperien luovutusten verotus (VH/6094/00.01.00/2022), issued 20 December 2022; authority)

Deemed acquisition cost

If you have no actual acquisition cost or it is hard to establish, you can calculate the capital gain using the deemed acquisition cost (hankintameno-olettama).

• Instead of the actual acquisition cost, you can deduct a deemed acquisition cost from the selling price: 20% if you owned the asset for less than 10 years, and 40% if for at least 10 years. The taxpayer can use the more favourable method. (Verohallinto, syventävä ohje: Arvopaperien luovutusten verotus (VH/6094/00.01.00/2022), issued 20 December 2022; authority)
• The deemed acquisition cost replaces the actual acquisition cost and expenses; purchase and selling costs are not deducted in addition to the deemed cost. (Verohallinto, syventävä ohje: Arvopaperien luovutusten verotus (VH/6094/00.01.00/2022), issued 20 December 2022; authority)
• If the acquisition date and price are missing from the pre-filled tax return, the Tax Administration calculates the gain using the 20% or 40% deemed acquisition cost; stating the year of acquisition is enough to determine the deemed cost. (Verohallinto: Arvopaperien myyntivoitot (täyttöohje), updated 27 September 2023; authority)

The broker's own reports

Foreign brokers often provide reports to help with reporting, but they do not replace tax advice:

• Lightyear provides account, income, capital gains and cost reports in PDF format to support reporting and does not give tax advice. (Lightyear: Taxes and statements, retrieved 16 October 2026; service provider)
• DEGIRO provides an annual report prepared for taxation and a cost summary in PDF format each year. (DEGIRO: What kind of reports are there and where can I find them?, retrieved 16 October 2026; service provider)

Nominee register and withholding tax on dividends

An account with a foreign broker is usually an investment account where the securities are held in the names of the broker and its custodians (a nominee register, hallintarekisteri).

• National rules do not allow nominee registration of Finnish shares owned by Finnish holders in the Finnish central securities depository; shares of a Finnish company can be nominee-registered only if they have been issued in a foreign central securities depository whose law allows it. (Verohallinto, syventävä ohje: Ennakonpidätys hallintarekisteröidylle osakkeelle maksetusta osingosta, 30 August 2023; authority)
• If the dividend payer does not receive the identification details of a recipient who is resident in Finland for tax purposes (yleisesti verovelvollinen), a 50% advance tax withholding is made on the dividend. (Verohallinto, syventävä ohje: Ennakonpidätys hallintarekisteröidylle osakkeelle maksetusta osingosta, 30 August 2023; authority)

Compare providers on the investment services page and read investing for beginners. Taxation of an equity savings account is different: the return is taxed on withdrawal and the information goes to the pre-filled tax return, see equity savings account.