If you are new to working in Switzerland, comparing offers, or trying to understand your first Swiss payslip more clearly, it is worth taking a close look at these three items. AHV, IV and EO are not minor details. They are statutory social insurance contributions that directly reduce your net salary month after month.
At the same time, they are often mixed up with other deductions. BVG, ALV, withholding tax, non-occupational accident insurance, or KTG may look similar on a payslip, but they do not follow the same rules. Those differences matter if you want to assess an employment contract properly or make a realistic gross-to-net salary comparison.
What AHV, IV and EO Mean in Switzerland
AHV, IV and EO belong to Switzerland's first pillar of social insurance. The abbreviations refer to old-age and survivors' insurance, disability insurance, and the loss of earnings compensation scheme. For employees, these contributions are required by law and are collected directly through payroll. According to the official AHV/IV information sheet 2.01, updated as of January 1, 2026, the total contribution rate for AHV, IV and EO together is 10.6% of the relevant salary, split equally between employee and employer. For most employees, that means an employee share of 5.3% of contributory pay.
In plain language: AHV helps provide income in old age and for survivors, IV covers certain risks related to disability, and EO finances income replacement benefits for military or civil service, maternity, caregiving leave, and certain other legally defined situations. For most employees, the detailed benefit design is not the main point. The payroll reality is what matters: these deductions are mandatory and reduce monthly take-home pay even before other items such as BVG or withholding tax are added.
If you want a quick estimate of how much AHV, IV and EO reduce your monthly salary, a Switzerland net salary calculator is a practical first step. A calculator does not replace an individual payslip, but it makes clear that even a seemingly simple Swiss employment package is affected by several layers of statutory deductions at the same time.
This becomes especially useful with concrete salary examples. If you want to see how mandatory deductions affect a common professional salary level, you can review the example guide on 7000 CHF gross to net in Switzerland. It shows clearly that the gap between gross salary and the amount actually paid out is not caused by taxes alone. Social deductions already make a noticeable difference.
It is also important to separate these items from other insurance costs that may appear on a payslip. AHV, IV and EO are core elements of the first pillar. Accident insurance or a possible daily sickness benefit arrangement belong to a different category, even if they also appear in payroll. For that distinction, the guide to accident insurance and KTG in Switzerland is useful because it clarifies which deductions are part of mandatory protection and which depend more on company setup, risk profile, or insurance design.
From an editorial perspective, AHV, IV and EO should not be treated as abstract social insurance jargon. They are a fixed net-pay component. That is also how the official AHV/IV information service presents them on ahv-iv.ch: as mandatory contributions that run directly through payroll for employed insured persons. The Federal Social Insurance Office (BSV) is the relevant federal authority. For practical, citizen-focused guidance on obligations and everyday life situations, ch.ch is also an important official reference point.
How These Deductions Affect Net Pay
The most important point for employees is simple: AHV, IV and EO are calculated as a percentage of contributory salary. They are therefore not a fixed franc amount. They rise as salary rises. Someone earning CHF 5,000 gross per month will pay less than someone earning CHF 8,500 gross. That is why a Swiss employment contract can look more generous than it really is if you focus only on the gross figure and ignore monthly deductions.
Take a practical example of CHF 7,000 gross per month. The employee share for AHV, IV and EO is 5.3%. That equals CHF 371 per month. In many cases, unemployment insurance, known as ALV, is added on top. According to official AHV/IV information sheet 2.08, the ALV contribution rate is 2.2% in total, meaning 1.1% for the employee, up to an annual salary ceiling of CHF 148,200. At CHF 7,000 gross per month, that would be another CHF 77. These statutory social deductions alone therefore reduce gross pay by CHF 448 before BVG, non-occupational accident insurance, KTG, or withholding tax even enter the picture.
This is where the difference between gross salary, tax thinking, and actual take-home pay becomes visible. Many candidates compare jobs only by annual salary, even though monthly net income is what matters for rent, health insurance, and everyday spending. If you want to benchmark more Swiss salary examples, the Switzerland salary overview page brings together more calculators, comparison pages, and guides on typical pay questions.
At higher income levels, ALV becomes especially important because it does not apply without limit to every franc of salary. The official AHV/IV unemployment insurance information sheet sets a ceiling of CHF 148,200 per year, still relevant as of July 2026. Above that level, no further ALV contributions are charged, while AHV, IV and EO continue to apply. In practice, that means that at very strong salary levels, AHV/IV/EO deductions keep increasing while ALV eventually stops. The deduction logic therefore changes once monthly gross salary rises above roughly CHF 12,350.
For most employees, however, the formula is not the only thing that matters. The order of deductions on the payroll matters too. AHV, IV and EO are among the first lines that visibly reduce net pay. Other items follow depending on the situation. If you want to understand why the net amount on a Swiss payslip is much lower than expected even when you know the gross salary, you need to know what each line means. That is exactly why the guide to understanding a Swiss payslip is useful, because it explains social deductions, withholding tax, and the net effect together.
There is another practical point: not every employee cost runs through payroll. Switzerland's mandatory health insurance is generally arranged directly by the insured person, and according to official AHV/IV information, the premium is not income-based. This means that even if your payroll deductions look manageable, the monthly health insurance premium usually has to be paid separately outside payroll. If you want a realistic view of your finances, do not confuse net salary with genuinely disposable income.
Note: An online calculator always provides only an estimate. Individual factors such as canton, withholding tax status, pension plan design, accident insurance premiums, or the employer's insurance setup can change the actual payout amount.
Which Differences There Are Compared with BVG and Other Payroll Deductions
The most common mistake is to treat every deduction on a Swiss payslip as if it worked the same way. AHV, IV and EO are statutory mandatory contributions within the first pillar and follow a nationally consistent basic logic. BVG, by contrast, belongs to the second pillar, meaning occupational pension provision. It does not serve the same insurance purpose, and its calculation works differently. The AHV/IV information platform explains occupational pensions as the second pillar intended, together with the first pillar, to help maintain an appropriate standard of living after retirement.
For employees, that distinction matters in a very practical way. AHV, IV and EO are charged as a fixed percentage of relevant salary. BVG, by contrast, depends on insured salary, age, the specific pension plan, and sometimes employer-specific contribution design. That is why two employees with the same gross salary can still have different BVG deductions. If you only see one total figure on payroll, you should not assume that every social deduction line uses the same calculation basis.
Unemployment insurance, or ALV, also needs to be separated clearly from AHV, IV and EO. It is likewise a statutory payroll deduction, but it is not part of the same three-part block. On many payslips, AHV/IV/EO is shown separately from ALV, though some payroll systems visually group them under one broader social insurance heading. Substantively, however, ALV is its own insurance scheme covering loss of income due to unemployment, short-time work, weather-related work stoppages, or employer insolvency. Its contribution is also capped, while AHV, IV and EO generally continue to apply across contributory salary.
The difference becomes even clearer with accident insurance and KTG. The official AHV/IV information on accident insurance explains that premiums for occupational accidents and occupational illnesses are paid by employers, while premiums for non-occupational accidents are generally borne by employees and may be deducted from salary. That is not an AHV/IV/EO deduction. It is a separate insurance line with a different allocation of cost. KTG, meanwhile, is often part of company practice, but it is not a nationally uniform statutory payroll deduction in the same sense as AHV, IV and EO.
Another point that matters for relocation decisions and offer comparisons: health insurance is mandatory, but it usually does not appear as a classic employee payroll deduction. According to official information on ahv-iv.ch, the insured person arranges the policy independently, and the premium depends on the insurer, place of residence, and model chosen rather than on income. So when assessing a Swiss job offer, you need to separate payroll deduction from mandatory private cost paid outside payroll.
Withholding tax is different again. It can also reduce the payout amount substantially, but it is not a social insurance contribution. For many foreign employees without a settlement permit, it is a key part of the monthly payroll result. In practice, that means that if you compare offers, you should distinguish at least between these groups: first-pillar statutory social deductions, ALV, occupational pension contributions, accident-related insurance deductions, possible KTG deductions, and tax deductions such as withholding tax.
How Employees Can Find These Items on Their Payslip
On a Swiss payslip, the relevant deductions are not always written out in full. In many cases, you will see only abbreviations or grouped items. Typical entries include AHV/IV/EO, AHV-IV-EO, social insurance, or AHV/IV/EO/ALV. Some payroll systems show the three positions together, while others list ALV separately just below them. For employees, the key point is therefore not the graphic layout, but understanding which abbreviations sit behind each line.
A good first step is to look at three things together: gross salary, the individual deductions, and the final net salary shown. That helps you see whether AHV/IV/EO appears as a standalone item or is included in a grouped social deduction line. On some payslips, the percentage is shown next to it. On others, you see only the CHF amount. If your base salary stays the same every month, the AHV/IV/EO deduction should usually remain fairly stable in normal months. Differences are more likely to come from bonuses, overtime, unpaid leave, or one-off payments.
At a glance, this rule of thumb helps: if you see a line worth roughly 5.3% as the employee share, it is typically AHV, IV and EO together. If you see another line of around 1.1%, that is often ALV. After that, BVG, NBU, or similar items often follow. For international employees, withholding tax is also often deducted afterward. Once you know that sequence, the payslip stops looking like a block of numbers and starts to read like a structured chain of deductions.
In practice, it is also worth checking the employment contract or staff handbook. Those documents often explain whether a KTG premium is shared, how the BVG arrangement works, and whether the employer passes on all or part of the non-occupational accident premium. AHV, IV and EO themselves are usually the least negotiable part: these contributions are set by law and are not simply a voluntary company policy choice.
If you receive a payslip and are unsure whether a line looks correct, do not focus only on the final payout number. Ask targeted questions instead. Is AHV/IV/EO grouped together? Is ALV shown separately? Is there an NBU deduction? How high is the BVG employee contribution? Those are more precise and useful questions than simply asking why net pay is lower than expected.
For new arrivals and for candidates comparing multiple offers, even a seemingly small difference in individual deduction lines can noticeably change the amount available each month. That is why it makes sense not only to read the job ad, but also to request a sample Swiss payslip or at least a clear breakdown of deductions. Doing so prevents misunderstandings about net pay, withholding tax, and insurance costs at an early stage.
Mini Glossary and Table of Typical Deductions
The overview below is intentionally practical. It is not meant to summarise the entire Swiss social insurance system. Its purpose is to help you recognise the abbreviations that commonly appear on a payslip and place them correctly.
The key point is that the table separates statutory payroll deductions from costs that are usually paid outside payroll or do not follow the same rules. For real-world job and relocation decisions, that distinction is often more useful than legal detail.
| Item | What does it stand for? | Typical effect on salary | What should you watch for? |
|---|---|---|---|
| AHV | Old-age and survivors' insurance | Statutory employee deduction as part of the first pillar | Usually not shown alone, but together with IV and EO |
| IV | Disability insurance | Statutory employee deduction | Almost always included in the combined AHV/IV/EO deduction |
| EO | Loss of earnings compensation scheme | Statutory employee deduction | Helps finance income replacement benefits and should not be confused with BVG |
| ALV | Unemployment insurance | Statutory employee deduction in addition to AHV/IV/EO | Applies only up to the relevant salary ceiling |
| BVG | Occupational pension, second pillar | Can reduce net pay significantly | The amount depends on age, plan design, and insured salary |
| NBU / NBUV | Non-occupational accident insurance | Often appears as an employee payroll deduction | Do not confuse it with AHV/IV/EO; premiums vary by employer and setup |
| KTG | Daily sickness benefit insurance | Possible payroll deduction depending on employer | Not regulated nationally in the same uniform way as AHV/IV/EO |
| Withholding tax | Direct tax deduction from salary | Can substantially reduce net pay | It is a tax item, not a social insurance contribution |
| Health insurance | Mandatory basic health cover | Usually paid outside payroll | The premium is generally not organised as a classic payroll deduction |
When reading your payslip, one rule of thumb helps: AHV, IV, EO and ALV are the mandatory deductions that almost every employee will see on payroll in some form. BVG, accident insurance, KTG and withholding tax may then be added depending on the person's situation and can significantly increase the total net effect.
That is exactly why, when reviewing a job offer, you should not ask only about gross salary. You should ask which deductions are expected in practice. Two offers with the same gross salary can still produce noticeably different monthly net pay if BVG, withholding tax, or non-occupational accident deductions differ.
Official Basis and Further Sources
If you want to understand AHV, IV and EO for your own salary planning, you do not need to become an expert in social insurance law, but you do need reliable sources. For contribution logic, the official information sheets from the AHV/IV information centre are the most useful starting point. Especially relevant are information sheet 2.01 on AHV, IV and EO payroll contributions, updated as of January 1, 2026, and information sheet 2.08 on unemployment insurance. These documents explain clearly which rates apply, who is subject to contributions, and how the burden is split between employer and employee.
For the institutional framework, the Federal Social Insurance Office (BSV) is the key federal authority. If you want to understand how the first and second pillars fit together or which official policy areas sit behind these abbreviations, BSV is the right reference. For practical, government-backed orientation on work, insurance, and everyday situations, ch.ch is useful. And for concrete AHV/IV/EO practice, including information sheets, definitions, and guidance, ahv-iv.ch remains the most direct source.
For a real decision on changing jobs, relocating, or negotiating pay, three conclusions matter most. First, AHV, IV and EO are fixed statutory payroll deductions, not optional employer choices. Second, they explain only part of the gap between gross and net pay; BVG, ALV, NBU, KTG and, where relevant, withholding tax can increase the total deduction effect noticeably. Third, health insurance is often part of personal budgeting, but not part of monthly payroll mechanics in the same sense.
If you are evaluating a Swiss offer, the next practical step is therefore not just to look at the annual salary figure, but to run a proper net-pay analysis. Check the gross salary, factor in AHV/IV/EO and ALV, ask about BVG and accident deductions, and clarify the withholding tax position. Only then do you see what the offer really means in daily life. That is why comparing official sources with a readable payslip is more useful than relying on a gross salary figure in isolation.