First 3 Days and Wage Continuation Insurance

Swiss employment law grants employers broad discretion over the first 3 days of illness. The statutory default is that these days are unpaid—the risk falls on the employee. However, many employers and collective agreements (GAVs) override this default by mandating wage continuation from day 1. In practice, larger employers, public sector agencies, and sectors with strong unions (construction, metalworking, healthcare) typically cover days 1–3 through GAV or internal policy. Smaller employers, startups, and some service sectors may enforce the unpaid default. Your employment contract or GAV specifies which rule applies; review this carefully at hiring.

From day 4 onward, wage continuation insurance (Lohnfortzahlungsversicherung) or mandatory employer payment kicks in. Employers with 1 employee are legally required to obtain wage continuation insurance; larger employers may self-insure or subscribe to optional insurance. Under most GAVs and large-employer policies, employees receive full salary continuation for 30+ days per year after the initial 3-day period. The insurance covers 80–100% of gross salary, capped at a cantonal or sector-specific maximum (typically CHF 3,500–5,000 monthly). If your employer carries insurance, claim processing is automatic through HR/payroll. If uninsured, you may have personal income insurance; verify coverage at hiring.

A medical certificate (Arztzeugunis) is required after 3 consecutive days of absence. Your doctor provides a simple form confirming you are unable to work; the employer cannot demand a diagnosis or detailed medical information. Employers may ask your doctor to specify an expected return-to-work date (e.g., "patient unfit until April 15") but cannot request specific diagnoses. If your absence extends beyond the initial certificate, your employer may require follow-up medical documentation at intervals (typically every 7–14 days for longer absences), and may refer you to the insurance company's medical examiner (Vertrauensarzt) for independent evaluation.

Annual Limits, Mental Health, and Return to Work

A typical annual sick leave limit is 30 days per year, though this varies by employment contract, GAV, and cantonal rules. Some employers extend to 40–50 days; others cap at 30. The calculation base varies: some employers use the calendar year (January 1–December 31), while others use a rolling 12-month period from your hire date or a GAV-defined period. Fragmented sick days (e.g., 5 separate single-day absences) all count toward this annual limit; they do not reset the counter. Once you exhaust annual sick leave, further absences are unpaid unless you qualify for IV (disability insurance) or other statutory protection.

Mental health absences—depression, anxiety, burnout, trauma—receive identical legal treatment as physical illness. There is no separate category or lesser protection for mental health. If you are unfit to work due to psychological reasons, the same sick leave rules apply: doctor's note required after 3 days, wage continuation from day 4, and 30-day annual limit. Employers cannot refuse sick leave claims or require higher medical thresholds for mental health versus physical illness. However, prolonged mental health absences (6+ weeks) often trigger IV assessment, as do physical long-term conditions, because the distinction between temporary sick leave and permanent disability becomes relevant.

Return to work has no gradual phase unless mutually agreed. Once your doctor clears you (Arbeitsfähigkeit), you are expected to resume full duties immediately. Some employers offer phased return (e.g., 50% hours week 1, 75% week 2) to ease reintegration, but this requires explicit negotiation and agreement—it is not a legal entitlement. If you return too early and relapse, your employer cannot penalize you, but further absences follow standard sick leave rules again. If your condition prevents full-duty return, request written accommodation or phased return agreement before your clearance date; do not return and hope for flexibility.

Long-Term Disability and IV Coverage

Absences exceeding 30 days per year or recurring patterns of sick leave trigger assessment by IV (Invalidenversicherung, or disability insurance), Switzerland's federal program for permanently or chronically incapacitated workers. After 4–8 weeks of illness, your employer or health insurance provider notifies IV, which determines whether your condition qualifies for temporary or permanent disability benefits. If IV accepts your case, you transition from sick leave to disability insurance payments, typically covering 70% of lost earnings up to a monthly maximum (roughly CHF 3,500–4,500 depending on previous income and contribution history).

IV serves as the long-term safety net for chronic conditions, terminal illness, or permanent incapacity. It includes medical rehabilitation, occupational retraining, and pension benefits. If your employer terminates you due to extended illness, IV benefits are crucial; without IV acceptance, you fall back on unemployment insurance (AC), which has shorter benefit periods (90–200 days depending on contribution history) and lower replacement rates. The IV application process can take 3–6 months; work with your employer's HR and health insurance provider to ensure timely notification and documentation.

Employers cannot terminate a sick employee during their initial absence period (roughly the first 30 days of continuous illness), but post-recovery termination is permissible if the employer can demonstrate legitimate business reasons (not the illness itself). However, if an employee has been absent frequently due to chronic illness, some cantonal labor offices may scrutinize terminations as discriminatory. Document all your absences, medical correspondence, and return-to-work communications carefully. If terminated shortly after returning from long-term illness, consult a labor attorney to assess discrimination risks.

Documentation, Employer Inquiries, and Dispute Resolution

Your employer has limited rights to medical information. You must provide a doctor's note confirming incapacity and expected return date, but the employer cannot demand diagnosis, psychiatric details, or medical prognosis. If your employer presses for excessive medical details, refuse politely and refer them to your health insurance provider or IV: "I am not able to share diagnosis details; my doctor confirms I am unfit to work. I will provide updated certification on [date]."

If your employer denies sick leave claims or demands you work while unfit, document everything in writing (emails, texts, calendar notes of refusals). Contact your union representative, cantonal labor office, or labor attorney if disputes escalate. Some employers conduct "fitness checks"—requiring independent medical exams by their chosen physician—which are legal but must be conducted respectfully and in compliance with data protection laws. If the independent examiner contradicts your doctor, seek clarification from your family physician and consider a second independent opinion before accepting any adverse determination.