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KI-Symbolbild: Ein frisch umgegrabenes, leeres Gartenbeet im Frühling mit einer Schubkarre, Knospen an den Sträuchern und einem Haus im Hintergrund.
Decision aid Financing & costs Austria and Germany

The tax refund finances the loan: Remove an unconfirmed benefit from the base calculation

How do I check the ongoing affordability of an investment flat when a tax refund is not yet certain?

Automatically translated – the German version is legally binding. Show original (German)

Published
19 Oct 2026
Applies to
Austria and Germany
For whom
Owners & landlords
Article ID
WX26-P06-0014

The presentation of an investment flat shows a small monthly net burden. Part of this is calculated on the basis of an expected tax refund. Before you derive an ongoing affordable financing from this, you need a calculation that remains meaningful without this unconfirmed payment. The article does not determine your tax liability nor the deductibility of particular expenses.

Mark an asserted relief clearly as an assumption

Ask which personal data, expenses and tax classifications the figure is based on. Does it belong to a professional calculation for your case or to a general promotional example? Disclose the issuer and the date. An unclear subsequent tax figure has no place as a confirmed monthly income.

Our editorial recommendation: first map the actual cash flow before the assumed tax payment. After that comes a second view with the professionally verified effect at the actually expected time. The second view must not replace the first.

The invented case

Under the explicitly chosen assumptions, 900 euros are received monthly; loan and other recorded disbursements amount to 1.100 euros. That initially leaves a shortfall of 200 euros per month. A sales example promises an annual tax refund of 1.800 euros. If you divide this by twelve, the calculated burden under this assumption looks like 50 euros per month.

In reality the 200 euros continue to be payable each month until such an inflow occurs. After a year 2.400 euros would have been covered; a later inflow of the assumed 1.800 euros would only replace part of that. This arithmetic neither confirms the refund nor its timing.

Explicitly play through the missing inflow

Examine, alongside the expected variant, a scenario without the unconfirmed refund. Which resources cover the ongoing shortfall? Which other purposes thereby lose their coverage? An unresolved payment does not become likelier because the financing needs it.

A professionally different classification of individual expenses can change a previously assumed course. Even then the ongoing obligation must be separately sustainable. Therefore obtain the individual tax assessment before entering into an economically far-reaching commitment, instead of using the promotional example as a substitute.

Record a verifiable decision

Note which monthly amount you would have to bear without the uncertain benefit, which payment is still outstanding and who will clarify it professionally. Do not decide solely on the basis of a subsequent tax figure smoothed over twelve months. This can support a later overall view, but it does not answer today’s availability. A tax refund remains in your planning a concrete, separately verified item and not a blanket repair item for every negative line.

Created with the help of AI and editorially reviewed. General guidance only; not individual legal, tax or financial advice. Errors and later changes are possible.