Payroll Setup in Switzerland: 2026 Complete Guide for Employers

Step 1: Register the company as an employer

Within 30 days of hiring the first employee, a Swiss employer registers with the cantonal AHV compensation office (Ausgleichskasse / caisse de compensation). The Ausgleichskasse acts as the single contact point that collects AHV (old-age and survivors' insurance), IV (disability), EO (income compensation) and ALV (unemployment) on behalf of the federal government.

Separately, the employer chooses a BVG pension provider (Sammelstiftung), takes out UVG accident insurance with SUVA or a private insurer, optionally adds KTG sick-day insurance, and registers with the cantonal family allowance fund (FAK / CAF). For non-Swiss employees the company also opens a Quellensteuer account with each canton where employees are tax-resident.

Most startups outsource this paperwork to a fiduciary (Treuhänder) for CHF 80–150 per employee per month. DIY is feasible — the federal AHV portal accepts online registration in under an hour — but the canton-by-canton variations for Quellensteuer and FAK reward delegating.

Step 2: Calculate gross-to-net deductions

Every Swiss payslip starts with gross salary and deducts six items in this order: AHV/IV/EO (5.3% employee + 5.3% employer), ALV (1.1% employee + 1.1% employer on salary up to CHF 148,200), BVG pension (typically 7–10% each side, age-graded), UVG non-occupational accident (~1.2% employee), KTG sick-day insurance if applicable (~0.5–1.5% shared), and Quellensteuer for foreign employees.

Family allowance contributions (FAK) of 1.0–3.6% depending on canton are employer-only. Children of employees receive CHF 200–440/month per child, paid via the payslip but funded by the FAK pool.

For a CHF 100,000 gross salary, expect roughly CHF 15,000–17,000 in employee deductions before federal/cantonal income tax (for Swiss/C-permit holders, paid via the annual tax return) and CHF 15,000–20,000 in employer-side contributions on top.

Step 3: Issue the monthly payslip

Swiss payslips (Lohnabrechnung / fiche de salaire) must show: gross salary, each social deduction with rate and amount, pension contribution split, net salary, the 13th-month accrual if applicable, and the employer's own contributions for transparency. There is no legal template — but the major payroll platforms (Bexio, Abacus, Swiss21, Run my Accounts) generate compliant payslips automatically.

Salary is typically paid on the 25th of the month. Bonuses, 13th-month and any irregular components are subject to the same social deductions, with the exception of family allowance and pure expense reimbursements (Spesen).

Step 4: Annual reconciliation and the Lohnausweis

By the end of January, employers must issue each employee a Lohnausweis (certificat de salaire) summarizing gross salary, deductions, fringe benefits and reimbursed expenses for the prior year. Employees attach this document to their tax return.

By 30 January, the Ausgleichskasse expects a final salary declaration (Lohnerklärung) reconciling provisional monthly contributions against actual annual salaries. Differences are billed or refunded. The BVG provider, UVG insurer and FAK each run their own annual reconciliations on a similar schedule.

Step 5: How Switzerland compares to DE/FR/IT

Germany splits social charges roughly 50/50 between employer and employee, totalling about 42% of gross salary — vastly more than Switzerland's ~24% combined load. Setup requires Betriebsnummer from the Agentur für Arbeit and registration with the Krankenkasse, BG and Finanzamt.

France has the heaviest employer burden in Europe — about 42% of gross salary in employer charges plus ~22% employee deductions. URSSAF handles most of the collection. Monthly DSN filings are mandatory.

Italy sits between France and Germany at ~30% employer / ~10% employee. Setup runs through INPS and INAIL, plus the obligatory commercialista for monthly UniEmens filings. Italian payroll is the most paper-heavy of the four.