Bonus vs 13th salary: read Swiss offer letters correctly
Published 2026-10-19 · Updated 2026-10-19 · 2 min read · 3 sources · Verified Swiss federal benchmarks
Direct answer
A 13th salary is typically one full monthly salary owed pro rata over the year; a bonus is separate and often discretionary unless the plan guarantees targets and timing. Check the offer letter and bonus annex for words like «gratification», «13. Monatslohn», «target», and «ausserordentlich».
Key facts
- 13th salary: usually 1/12 of annual base per month worked; owed unless contract excludes it.
- Bonus: may be discretionary; only guaranteed amounts are binding.
- Payout month matters for cash flow (December vs March).
- Pro-rata rules apply if you start or leave mid-year.
- ALV insured salary includes regular guaranteed thirteenth payments when contributed.
Clause hunt in the offer letter
Search for «13. Monatslohn», «Jahreslohn in 13 Raten», or «Gratifikation». Fixed thirteenth wording implies entitlement; vague «bonus at company discretion» does not.
Cross-check the collective agreement if referenced. CBAs may mandate December thirteenth pay regardless of offer wording.
Separate commission plans from thirteenth month. Sales commission is performance-linked; thirteenth month is usually base salary structure.
Compare two contract snippets
Contract 1: «Der Jahreslohn wird in 13 gleichen Monatsraten ausgerichtet.» That is CHF 8,000 times thirteen equals CHF 104,000 annualized base.
Contract 2: «Bonus bis 10% des Jahreslohns nach Beurteilung durch die GL, ohne Anspruch.» The ten percent is uncertain; do not treat it like a thirteenth month.
If Contract 1 pays December and Contract 2 pays March bonus only, your cash flow in January differs even when annual numbers look close.
| Wording | Treat as | Planning |
|---|---|---|
| 13 Monatsraten | Guaranteed 13th | Use 13th-salary tool |
| Gratifikation fix | Guaranteed if earned | Check pro-rata on exit |
| Bonus nach Beurteilung | Discretionary | Exclude from budget |
Worked example: start 1 April on thirteen months
Monthly CHF 7,400 in thirteen equal rates. Pro-rata thirteenth for nine months worked in year one is often nine-twelfths of one monthly amount, unless contract limits December survivors only.
Annualize with the thirteenth-salary tool before comparing to a CHF 7,900 times twelve offer. Social deductions apply on each paid month at 5.30% and 1.10% up to CHF 148,200.
Leaving mid-year and clawbacks
Pro-rata thirteenth is owed for months worked unless contract limits payment to December survivors. Read «Anspruch bei Austritt» clauses.
Sign-on bonuses may require repayment if you leave within twelve to twenty-four months. Note repayment triggers before accepting.
Get payout timing for bonus and thirteenth in the same written package as base salary.
Common mistakes reading offers
Equating «target bonus 10%» with a thirteenth month.
Ignoring German « ohne Anspruch » on bonus lines.
Not asking whether thirteenth is in December payroll or split across months.
Budgeting discretionary bonus for mortgage affordability.
FAQ
- Is commission the same as 13th salary?
- No. Commission ties to sales; 13th is usually fixed base.
- Does a bonus affect ALV insured salary?
- Regular guaranteed payments count; purely discretionary one-offs may not. RAV decides case by case.
- Can employer replace 13th with bonus plan?
- Only with clear agreement. Removing a guaranteed 13th lowers annual gross.
- When is pro-rata 13th paid on resignation?
- Often with final salary or next regular 13th cycle; contract text controls.
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