TaxEngineSwitzerland
TaxesPensionBusinessReal EstateDeveloperAbout us

Taxes

  • Income and Wealth Tax
  • Tax Comparison Between Municipalities
  • Tax Ranking
  • Marginal Tax Rate
  • Net Salary
  • Wealth Tax
  • Deductions
  • Marriage Penalty
  • Church Exit: Calculate Tax Savings
  • Inheritance Tax
  • Gift Tax
  • Tax Apportionment
  • Tax Shield / Bouclier Fiscal
  • Swiss Tax Burden Map
  • Withholding Tax at Source
  • Withholding Tax vs. Tax Return
  • Home Office Deduction

Pension

  • Pillar 3a Maximum Contribution and Tax Savings
  • Pillar 3a Staggering
  • Pension Withdrawal Tax
  • Pension Fund Contributions
  • Annuity or Lump Sum
  • OASI Pension
  • OASI Deferral
  • Early Retirement
  • Pension Gap
  • Wealth Planning Switzerland

Business

  • Dividend vs. Salary
  • Corporate Tax
  • Corporate Tax Comparison Between Locations
  • Market Salary
  • Payroll Costs
  • OASI Contributions
  • VAT
  • Freelancer Hourly Rate
  • Liquidation Tax
  • Company Car
  • Participation Deduction
  • Partial Taxation
  • Withholding Tax
  • Stamp Duty
  • Working Days

Real Estate

  • Imputed Rental Value
  • Property Maintenance Deduction
  • Property Tax
  • Property Gains Tax
  • Property Transfer Tax
  • Affordability
  • Fixed-Rate vs. SARON Mortgage
  • Amortise or invest
  • Indirect Amortisation
  • Advance Withdrawal
  • Rent or Buy
Legal NoticePrivacy PolicyDisclaimer

Calculate OASI Contributions

Calculate OASI/DI/IC contributions for employees and self-employed persons.

The OASI contribution calculator computes the OASI, DI, IC and UI contributions for employees and self-employed persons in Switzerland. It shows the split between employer and employee as well as the applicable contribution rate.

Related Calculators

Calculate Pension Fund Contributions

Calculate the mandatory pension fund contributions under BVG (2nd pillar).

Calculate Income Tax

Calculate your income and wealth tax (federal, cantonal, municipal) for any of the 2,100+ Swiss municipalities.

Estimate Tax Deductions

All tax deductions at a glance: lump-sum deductions, Pillar 3a, pension fund, professional expenses and insurance premiums by canton.

OASI contribution rates for employees and self-employed

For employees, contributions are shared equally between employer and employee: - OASI: 8.7% (4.35% each) - DI: 1.4% (0.7% each) - IC: 0.5% (0.25% each) - UI: 2.2% (1.1% each) up to CHF 148,200 Total: 12.8% on gross salary (6.4% employee share). Self-employed persons bear the contributions alone. From CHF 58,800 income, the full rate of 10.0% (OASI + DI + IC) applies. At lower incomes, a declining scale applies. Self-employed persons are not subject to UI contributions. OASI contributions are part of the total payroll costs, which also include pension fund contributions.

OASI contributions and pension: What really counts

The OASI pension depends on two factors: contribution years and average annual income. The maximum pension (2025: CHF 2,520/month) is achieved with 44 contribution years and an average annual income of at least CHF 88,200. Each missing contribution year reduces the pension by approximately 1/44. On the tax side: OASI contributions are automatically deducted from taxable income and thus reduce income tax.

Frequently Asked Questions

From what income do I have to pay OASI contributions?+
Do I still pay OASI contributions as a retiree?+
How high are OASI contributions for self-employed persons?+
Are OASI contributions deducted from taxable income?+
What is the difference between OASI and occupational pension?+