How much equity do I need for a mortgage?
Understand LTV, 10/20/30% scenarios, and how banks assess risk.
Ahmet Parlak
Mortgage & Property Finance Expert, Vienna
Kurzantwort: Eigenkapital für Immobilienkredit Österreich
- Als Richtwert gelten 20% Eigenkapital plus 8–10% Nebenkosten.
- 20% Eigenkapital = LTV 80% – in Österreich als solide Basis anerkannt.
- Weniger als 20% ist möglich, führt aber zu höheren Zinsen und strengerer Prüfung.
- Nebenkosten immer zusätzlich zum Eigenkapital einplanen.
Last updated: 2026-02-01
Short answer: How much equity is realistic?
A common benchmark is 20% equity plus 8–10% fees, which keeps LTV near 80%. Lower equity can be approved, but often leads to stricter underwriting or higher rates. Planning fees early helps avoid surprises.
How much equity do I need in Austria in 2026?
- 20% equity
- 8–10% fees
- Target 28–30%
A common benchmark is 20% equity plus 8–10% fees for a solid 80% LTV.
20% equity: why banks focus on it
The 20% equity threshold in Austria corresponds to an 80% loan-to-value (LTV) ratio — the standard benchmark used by Austrian banks to define "first-rank" mortgage lending. Below 80% LTV, banks can fund the loan at favourable rates because the statistical risk of loss in a forced sale is low. Above 80% LTV, risk increases and lenders typically respond with interest rate premiums or demand additional collateral.
Austria's KIM-V regulation (FMA) formally requires a minimum 10% equity contribution, but also imposes an indirect cap through the DSTI limit (maximum 40% of net income for debt service). Borrowers with 30% equity (70% LTV) benefit from the best rates and a larger buffer against declining property values. According to OeNB data, the average LTV of newly issued residential loans in Austria was 73.5% in 2023. (Sources: FMA.gv.at; OeNB Real Estate Market Report 2024)
LTV explained
Lower LTV means lower risk and often better terms.
Calculate equity plus fees
- •Equity target: price x 20%.
- •Fees: price x 8–10%.
Risks of low equity
- •Higher rates, stricter approvals, less buffer for fees.
Prepare for the bank meeting
- •Separate equity vs fees and document your sources.
Comparing 10/20/30% scenarios
10% equity
High LTV, stricter checks, higher rates.
Only with strong guarantees.
20% equity
Common baseline for approvals.
Balanced option.
30% equity
Lower risk and better terms.
Ideal if you keep a buffer.
Sources
FAQ
Around 20% of the price plus fees is a common benchmark.
Sometimes, but banks differ in how they classify subsidies.
For new builds or renovations, own labour can sometimes be counted, but only with documentation.
Expect higher rates or additional requirements.
Keep 3–6 months of expenses as a safety net.
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Next step: quick scenario check
Pick the option that helps you decide fastest.