In Österreich arbeiten von der Slowakei aus: praktischer Leitfaden 2026

• Tax: how it works
• Familienbeihilfe top-up — money many families miss
• E-card health insurance and family co-coverage
• Telework from Slovakia
• Practical tips from frequent commuters

Under the Austria-Slovakia double-taxation treaty (2018, Article 14), salary earned by a Slovak resident from an Austrian employer is taxed in Austria. The Austrian employer deducts Lohnsteuer and social security contributions at source — your monthly net is what you actually take home.

On your annual Slovak tax return (daňové priznanie), you must declare the Austrian salary. Slovakia applies the 'exemption with progression' method: the Austrian income is exempt from Slovak income tax, but it raises the rate that applies to any Slovak-source income you have. If you have NO Slovak income, no extra tax is due — but you still must file.

Failing to file a Slovak return because 'I already paid in Austria' is a common mistake that triggers Slovak tax authority audits. Even with zero additional tax due, the filing obligation stands.

Austrian Familienbeihilfe (family allowance) is much higher than Slovak prídavok na dieťa. Under EU regulation 883/2004, when a parent works in Austria but the family lives in Slovakia, Austria pays a TOP-UP equal to the difference between the Austrian and Slovak benefit. For a child aged 3-9 in 2026, this is roughly €145/month per child of net top-up — a meaningful sum.

To claim the top-up you must apply at the Austrian Finanzamt with form Beih 38 plus your spouse's and children's data, marriage certificate, and proof that the children live in Slovakia. The first payment usually arrives 2-4 months after application; back-payments are possible up to 5 years.

The top-up is paid to whichever parent is registered as the primary applicant in Austria — usually the working parent. Coordinate with your spouse to avoid double claims (which Austria reclaims with interest).

Working in Austria gives you compulsory Austrian health insurance through the ÖGK (former GKK). You receive an e-card that works in Austrian hospitals, doctor's offices and pharmacies.

Your spouse and children in Slovakia can be co-insured under your Austrian coverage via the S1 form. The S1 is issued by ÖGK, registered with the Slovak health insurer (Všeobecná zdravotná poisťovňa or another), and your family then uses Slovak public healthcare as if they had Slovak insurance.

If your spouse also works in Slovakia, the rules are different — usually each spouse is insured in their working country and children are covered by both, with one country acting as primary payer. Your Slovak health insurer can clarify the specific paperwork.

Both Austria and Slovakia signed the 2023 EU framework agreement on cross-border telework. You can work up to 49.9% of your time from Slovakia without shifting your social security back to Slovakia, provided your Austrian employer also opts in.

Tax is separate. Under the standard Austria-Slovakia treaty, Austrian taxation continues to apply for the days physically worked in Austria; days worked in Slovakia are taxed in Slovakia. Most employers handle this through proportional Lohnsteuer reduction, but small employers may not — check your monthly payslip.

If your telework share exceeds 49.9% (e.g. you become fully remote), your Slovak social security applies. This usually reduces the employer's cost (Slovak SS is lower than Austrian) but also reduces your future Austrian pension entitlement — discuss with a payroll specialist before going fully remote.

Vignette: if you drive across the Austrian border, you need an Autobahn vignette (€106.80/year for 2026 cars). The 'Digitale Vignette' is convenient but expires per calendar year regardless of when you bought it — buy in early January for full value.

Pension transfer: pension years in Austria and Slovakia aggregate under EU rules. You will receive a partial pension from each country at retirement, calculated proportionally. Get a yearly Austrian Pensionskonto-Auszug to track your accumulated entitlement.

Currency: most cross-border workers are paid in EUR (both AT and SK are eurozone) so there's no FX exposure — unlike Czech-Germany or Polish-Germany commuters. This is a real advantage of the SK-AT corridor.