Personal Investment Accounts (OKI): how they work and when they take effect. Saving and investing without the Belka tax

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Personal Investment Accounts (OKI): how they work and when they take effect. Saving and investing without the Belka tax

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On August 13, 2026, President Karol Nawrocki signed the Act of July 3, 2026 on Personal Investment Accounts. The rules take effect on January 1, 2027, and accounts will be offered by domestic banks, brokerage firms, investment fund managers, and other institutions. How does the new system work, and what tax benefits does it offer? Read on to find out.

Personal Investment Accounts (OKI): how they work. Saving and investing through OKI from January 1, 2027

Personal Investment Accounts, or OKI, will be a new, special, and entirely voluntary type of account. Adults will be able to build savings and invest through it on preferential tax terms.

The new format is meant to give individual investors new ways to allocate capital and to support the domestic economy. It is modeled on Sweden's investment savings account program. In Poland it will work as a separate account where an investor can hold assets until deciding to withdraw them. Every adult will be able to sign any number of OKI agreements with different financial institutions. However, the tax limits (more on those below) will be calculated across all of one person's OKI accounts combined.

It is important to note that, despite their preferential tax treatment, OKI are not a retirement product (unlike Poland's IKE or IKZE retirement accounts). This means you will not have to wait until a certain age to withdraw your money.

How OKI tax benefits work: a new asset value tax instead of the Belka tax, and the exemption limits (PLN 100,000 and PLN 25,000)

Profits earned on assets held in an OKI will not be subject to personal income tax (PIT), including the 19% tax on capital income (known in Poland as the Belka tax).

Instead, OKI will carry a new tax: the asset value tax. It is calculated on the sum of the average values of the assets held across all of a taxpayer's OKI accounts. The rate will be set every year, in simplified terms, using this formula: 19% × the National Bank of Poland (NBP) reference rate as of October 31 of the previous year. Under a separate provision, the rate for 2027 will be 0.85%.

Up to PLN 100,000 of average asset value that meets the statutory conditions will be exempt from the asset value tax. That does not mean every amount below PLN 100,000 placed in an OKI will be tax-free, though. The type of instrument matters.

A PLN 25,000 sublimit also applies to certain savings assets (it fits inside the PLN 100,000 limit). It covers:

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The exemption within the PLN 100,000 limit (outside the savings sublimit) covers, among others:

The following do not qualify for the asset value tax exemption, among others:

How the OKI limits work in practice

Suppose the average asset values across all of one person's OKI accounts are as follows:

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Summary

How Personal Investment Accounts (OKI) work and when they take effect. Saving and investing without the Belka tax

Personal Investment Accounts are a voluntary option for adults and take effect on January 1, 2027. OKI let you save and invest without paying the Belka tax on your profits. An asset value tax applies instead, at a rate of 0.85% in 2027.

The exemption covers up to PLN 100,000 of average asset value in qualifying assets, with a PLN 25,000 sublimit for certain savings assets.

Keep in mind that the asset value tax is charged on assets above the statutory limits (and on assets that do not qualify for the exemption). You will owe it even if your investment earns no profit or loses value.

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