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· 7 min· Paweł Woś

IKZE for a Sole Proprietorship in Poland in 2026 — Limit, Deduction and Withdrawal

IKZE for business owners in Poland in 2026: the 16 956 zł limit, deductions under the tax scale, flat tax and lump-sum tax, 10% on withdrawal, and early refund rules.

IKZEretirementtax deductionsole proprietorship2026

IKZE allows business owners to save for retirement and deduct their contributions in their annual PIT return. In 2026, a person running a non-agricultural business can contribute up to 16 956 zł.

The deduction is available not only under the tax scale and flat tax. A business owner on lump-sum tax can deduct the contribution from revenue taxed under the lump-sum scheme.

IKZE limit in 2026

The annual limit is:

  • 16 956 zł — for a person running a non-agricultural business,
  • 11 304 zł — for other savers.

A business owner does not have a separate, lower limit because they chose lump-sum tax. The limit depends on their status as a person running a business, not on their PIT rate.

Any unused limit does not carry over to the next year.

How the deduction works

Contributions made during the year are deducted in the annual return, up to the applicable limit and the income or revenue earned:

  • under the tax scale — from income in PIT-36,
  • under flat tax — from income in PIT-36L,
  • under lump-sum tax — from revenue in PIT-28.

The same contribution cannot be deducted twice. If a taxpayer has several types of revenue or income, the allocation of the deduction should comply with the regulations and the reported tax bases.

Example tax benefit

With the full contribution of 16 956 zł, the simplified PIT saving alone is:

  • 2 034,72 zł at the 12% rate,
  • 3 221,64 zł under 19% flat tax,
  • 1 441,26 zł at the 8,5% lump-sum rate, if the full contribution can be deducted from revenue subject to that rate.

These examples do not account for other reliefs, the available tax base or the details of the settlement. IKZE does not mean that the money is permanently tax-free — tax arises on withdrawal or refund.

Withdrawal after meeting the conditions

A preferential withdrawal is possible after reaching the age of 65, provided contributions were made in at least 5 calendar years. It may be made as a lump sum or in instalments.

Such a withdrawal is subject to a 10% lump-sum income tax.

Early refund

Before the conditions are met, there is no statutory “30% penalty.” A refund of IKZE funds is generally revenue taxed under the tax scale in the year it is received.

IKZE does not allow a partial refund under the ordinary rules. Funds may be transferred between eligible IKZE accounts or to a pension scheme specified in the Act; a transfer to IKE should not be presented as a freely available way to avoid tax.

IKZE and the Belka tax

While funds are being saved, investment gains in IKZE are not subject to the 19% capital gains tax on an ongoing basis. Instead, the final tax treatment depends on how the funds are taken out of IKZE: a preferential withdrawal is taxed at 10%, while an early refund is settled under the tax scale.

When IKZE may not provide the full benefit

The full deduction may not be available in a given year when:

  • income or revenue is lower than the contribution,
  • the taxpayer does not have a tax base from which the full amount can be deducted,
  • part of the contribution exceeds the annual limit,
  • the deduction has already been used in another return.

Simply contributing the maximum amount does not guarantee the same saving for every business owner.

FAQ

Can a lump-sum taxpayer deduct IKZE contributions?

Yes. The contribution is deducted from revenue reported in PIT-28, up to the limit and the available tax base.

What is the limit for a business owner in 2026?

16 956 zł. The 11 304 zł limit applies to people who do not run a non-agricultural business.

Does an early refund cost 30%?

There is no fixed 30% penalty. A refund is generally taxed under the tax scale.

Is a withdrawal after the age of 65 always taxed at 10%?

The 10% rate applies after meeting both the age condition and the requirement to make contributions in at least 5 calendar years.

Sources

Need help with a business owner's PIT return?

Oxyok provides accounting and annual tax returns for sole proprietorships — from 49 zł + VAT per month.

Email Paweł or see Oxyok accounting.

This material is general in nature. The effect of the deduction depends on the form of taxation, the available tax base and other tax settlements.

IKZE for a Sole Proprietorship in Poland in 2026 — Limit, Deduction and Withdrawal