Privatstiftung
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Private foundation interim-tax credit: applying historical balances by assessment year

How a private foundation calculates historical interim-tax balances by assessment year, rate, distribution excess and treaty relief.

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25 September 2026, Mag. Bernhard Brandauer, Rechtsanwalt

An Austrian private foundation’s interim-tax credit is calculated in statutory assessment-year layers. The relevant facts are corporate tax already assessed and paid, later distributions subject to withholding tax, and the part of those distributions that exceeds the relevant income.

Section 24(5) of the Austrian Corporate Income Tax Act, KStG, provides for a credit in the assessment of corporate tax attributable to specified private-foundation income. It also sets different percentages for years before 2011, 2011 to 2022, 2023, 2024 and 2025, and from 2026 onwards. The oldest years have priority.

This article explains the calculation by assessment year, the role of a distribution excess, the evidence account and the effect of treaty relief. General private-foundation taxation, participation-income exemptions and preparation of a distribution are separate issues.

Which conditions apply to an interim-tax credit

The first condition is that corporate tax on income within section 13(3) and (4) KStG has been assessed and paid in an assessment. A bookkeeping entry or an outstanding tax return is not enough. The relevant fact is corporate tax assessed and actually discharged for the relevant process.

The second condition concerns the later distribution. The private foundation must make a distribution within section 27(5)(7) of the Austrian Income Tax Act, EStG, for which withholding tax has been remitted. The credit under section 24(5) KStG therefore connects paid corporate tax with a distribution carrying the required withholding-tax burden.

The credit is a statutory adjustment within the corporate-tax assessment. It does not replace correct withholding on the distribution or the separate review of whether the payment is permissible under foundation law. The resolution, economic receipt, tax remittance and assessment records must describe the same transaction.

The article on private foundation distributions examines preparation of an individual payment. The article on annual accounts of the private foundation addresses the accounting file and board records.

Review matrix

Four records must tell the same story

Each record answers a different question. Their combination shows which part of interim tax can be credited.

Records for a credit under section 24(5) KStG
Record Question answered Typical evidence
Year layer Assessment Which corporate tax was assessed for the year? Tax assessment and return
Payment Was that corporate tax actually paid? Payment record and tax account
Distribution Which distribution carried withholding tax? Resolution, payment record and withholding filing
Evidence account What balance remains available for a credit? Continuously updated annual foundation schedule

The exact credit base and the allocation to assessment-year layers require a calculation using the complete tax and evidence records.

How an excess distribution creates the credit base

Section 24(5)(3)(a) KStG compares the sum of income separately taxed under section 13(3) KStG with the sum of distributions under section 27(5)(7) EStG. The relevant amount is the part of the distributions that exceeds that income total. This distribution excess must not be confused with the foundation’s entire assets or with every tax payment made in an earlier year.

The calculation therefore needs an assessment-year allocation. First identify the years from which the paid corporate tax originates. Then establish the statutory credit base from the relevant distribution. Only after that can the percentage for each year layer be applied.

A current tax assessment cannot answer all of these questions by itself. It normally shows tax for one assessment year. A credit spanning several years also requires distributions, withholding remittances, earlier credits and the remaining evidence-account balance to be carried forward.

Historical balances cannot be offset against a current payment as one undivided amount. Establish the credit base, treaty relief, assessment-year percentage and credits already used separately before calculating the remaining credit.
Calculation steps

From tax assessment to a traceable credit

The sequence keeps tax rates, distributions and remaining balances separate.

  1. 01
    Assessment

    Collect annual assessments

    Record corporate tax assessed and paid for each assessment year.

    Assign assessments, returns, payments and any amendments to the relevant assessment year.

    Review basis: Section 24(5)(1) KStG

  2. 02
    Distribution

    Identify the withholding-tax distribution

    Prove the distribution and the withholding tax remitted.

    Reconcile the resolution, receipt, payment record and withholding filing. The statutory distribution, rather than its heading, controls.

    Review basis: Section 24(5)(2) KStG, Section 27(5)(7) EStG

  3. 03
    Excess

    Calculate the credit base

    Compare distributions and separately taxed income under section 24(5)(3).

    Determine the statutory difference and account for any treaty relief affecting the final withholding-tax burden.

    Review basis: Section 24(5)(3) KStG

  4. 04
    Year layer

    Apply the year-specific percentage

    Calculate the credit for the relevant assessment year.

    Allocate the credit base to the applicable statutory year layer. The oldest years have priority.

    Review basis: Section 24(5)(4) KStG

  5. 05
    Evidence

    Update the evidence account

    Record the credit, use and remaining balance in a traceable way.

    Document the new credit and balance so the next assessment or distribution can use the correct starting point.

    Review basis: Section 24(5)(5) KStG

Which years and rates receive priority

Section 24(5)(4) KStG links the credit to the percentage for the relevant year. It provides 12.5 per cent for years before 2011, 25 per cent for 2011 to 2022, 24 per cent for 2023, 23 per cent for 2024 and 2025, and 27.5 per cent from 2026 onwards of the relevant credit base.

These percentages are assessment-year layers. They cannot be replaced by one current percentage. A historical balance covering several periods must allocate each amount to the correct year and show the calculations separately.

The statute also gives priority to corporate tax from the oldest years. The working file therefore needs a sequence: the oldest open year first, followed by the next open year. A remaining amount stays connected to its year and does not become an unexplained total balance.

Year layers

The percentage follows the assessment year

The table shows the statutory credit layers. It does not replace calculation of the credit base for the individual distribution.

Corporate-tax credit under section 24(5)(4) KStG
Assessment years Credit rate Priority
Before 2011 12.5 per cent Check open historic years first
2011 to 2022 25 per cent After older open year layers
2023 24 per cent Separate year layer
2024 and 2025 23 per cent Document the years separately
From 2026 27.5 per cent After each older open year layer

Why the evidence account must show every year layer

Under section 24(5)(5) KStG, the private foundation must keep an evidence account. It records corporate tax paid each year, amounts credited and the remaining amount eligible for a credit. The account tracks the development of the credit over several assessments.

For every year layer, the file should show the amount originally established, the part already credited and the balance still open. A single running total makes the statutory priority rule difficult to apply and leaves later calculations vulnerable to error.

The evidence account is separate from the foundation’s bookkeeping and general asset position. Bookkeeping records transactions. The asset position shows the economic situation. The evidence account answers the tax question which amount of paid interim tax remains available for a credit.

The board and its advisers should reconcile the account with tax assessments, withholding filings, distribution resolutions and annual accounts. Differences should be recorded with the year in which they arose, the distribution concerned and the correction made. The foundation board and liability topic addresses care in asset and tax decisions.

How treaty relief changes the credit base

Where a distribution receives relief from withholding tax under a double-tax treaty, the distribution total must be reduced for the credit base to the extent that the distribution is not finally burdened with withholding tax. Treaty relief therefore affects the calculation under section 24(5)(3)(a) KStG.

The file must separate the amount initially withheld from the final tax burden. A distribution may first be treated as subject to withholding tax and later receive treaty relief. The original full distribution amount does not automatically remain decisive for the credit.

Where relief occurs after withholding tax was remitted, section 24(5)(3)(b) KStG treats the later relief as a retroactive event within section 295a of the Austrian Federal Fiscal Code, BAO. Relief records must therefore be connected with the original distribution and the affected assessment.

Treaty analysis depends on the applicable treaty, residence and the form of relief. This article explains the impact on the interim-tax credit. It does not replace review of the treaty or the recipient’s evidence.

What changes when the private foundation is dissolved

When the private foundation is dissolved, the credit must still be calculated under the credit base and year layers in section 24(5)(3) and (4) KStG. The closing assessment does not remove the assessment-year allocation.

For the calculation, the balance in the evidence account is treated like a distribution within section 27(5)(7) EStG. The open balance therefore enters the closing calculation. The records must show which year layers have already been used and which balances remain.

There is a special rule for possible later treaty relief in a dissolution case. Despite withholding tax already having been remitted, the distribution amount is reduced accordingly. The credit is issued with the final assessment.

Dissolution and the tax closing calculation must be reconciled with foundation-law winding-up steps. The article on dissolution of a private foundation explains the legal process. A tax group is relevant only where the facts raise that separate issue.

Initial orientation

Which records does the historical credit need first?

The questions organise assessments, distribution, treaty records and the evidence account. They do not calculate a specific credit amount.

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01 Question 1

Are the corporate tax and distribution fully documented?

Check assessment, payment, distribution and withholding-tax remittance.

All paths at a glance

Overview of all answers.

01

The conditions for the credit are not yet fully evidenced.

Allocate assessments, payment records, distribution resolutions, payment records and withholding filings to the relevant assessment year.

02

The historical credit must be split into assessment-year layers before calculation.

Create a year schedule showing tax paid, credit base, credit already used and the open balance. Start with the oldest open year.

03

Possible treaty relief changes the credit base.

Review residence, relief procedure and final withholding-tax burden. Connect later relief with the original distribution and affected assessment.

04

The evidence account does not yet show used and open amounts sufficiently.

Reconstruct annual tax paid, earlier credits and the remaining balance. Reconcile the schedule with assessments and distributions.

05

The basis for a calculation starting with the oldest open year layers is organised.

Calculate the statutory distribution excess, apply the rate for each assessment year and update the evidence account with the result.

Frequently asked questions

Private foundation interim-tax credit in practice

What conditions apply to an interim-tax credit? +
Corporate tax on the statutory private-foundation income must have been assessed and paid. The foundation must also make a distribution under section 27(5)(7) EStG for which withholding tax has been remitted.
What amount forms the credit base? +
Section 24(5)(3) KStG uses the statutory difference between separately taxed income and the relevant distributions. The relevant amount is the part of distributions exceeding that income. Treaty relief may reduce the distribution total.
Which rate applies to a historical balance? +
The rate follows the assessment year: 12.5 per cent before 2011, 25 per cent for 2011 to 2022, 24 per cent for 2023, 23 per cent for 2024 and 2025, and 27.5 per cent from 2026. The oldest years have priority.
What must the evidence account contain? +
It records corporate tax paid each year, credits already granted and the balance still eligible for a credit. The year allocation must remain traceable so the statutory priority rule can be applied.
What does treaty relief after withholding-tax remittance change? +
Under section 24(5)(3)(b) KStG, later relief is a retroactive event within section 295a BAO. The distribution total is reduced to the extent it is not finally burdened with withholding tax.
Topics
Interim-tax creditInterim taxPrivate foundationHistorical balanceAssessment yearCorporate taxWithholding taxEvidence account

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