13th Salary & Taxes: How to Prepare
Allocate your bonus or 13th month salary smartly in Switzerland: taxes, saving goals and emergency fund strategy – without the post-holiday hangover.
- Understand how 13th salary and bonuses affect your taxes in Switzerland.
- Simple allocation formula for taxes, emergency fund, goals and “fun money”.
- Ready-to-use template that you can mirror in Excel, Sheets or BudgetHub.
For many people in Switzerland, the 13th salary or a bonus is the biggest single payment of the year. Used well, it can stabilise your finances, strengthen your emergency fund and bring you closer to your goals. Used spontaneously, it disappears in a few weeks – and sometimes even increases next year’s tax stress.
This guide shows you how to prepare for taxes on your 13th salary, how to split the money between tax reserves, saving goals and enjoyment, and how to organise everything in BudgetHub so you don’t have to “guess” each year.
Note: Tax rules differ by canton and situation. This page gives orientation, not individual tax advice. For specific questions, talk to a tax professional or your local tax office.
1. How the 13th salary works in Switzerland
Many Swiss employment contracts include a 13th month salary (13. Monatslohn). Typically:
- It corresponds roughly to one extra monthly salary, paid out once or in two parts.
- It can also be structured as a bonus, depending on your contract.
- It is generally taxable income – just like your normal salary.
2. Why the 13th salary has tax consequences
The 13th salary increases your taxable income for the year. This can have effects such as:
- Higher overall tax for the year, especially if you move into a higher bracket.
- Additional tax invoices or higher instalments from the tax office.
- For withholding tax (Quellensteuer), a higher deduction in the payout month.
If you treat the entire 13th salary as “extra” and spend it all, you may feel the tax impact only months later – when the bill arrives. A simple tax reserve strategy avoids that.
For background on how Swiss tax calculation works, see Swiss tax calculator – how it works and Set aside taxes: monthly plan (CH).
3. Smart allocation template: taxes, safety, goals, fun
Instead of guessing every year, define a fixed allocation rule for your 13th salary or bonus. A popular approach is the “4-bucket model”:
| Bucket | Purpose | Typical share |
|---|---|---|
| 1. Taxes | Cover additional tax burden & top up tax reserves | 20–40 % |
| 2. Safety | Emergency fund, health & insurance buffer | 20–30 % |
| 3. Long-term goals | Investing, Pillar 3a, education, home savings | 20–40 % |
| 4. Enjoyment | Holidays, upgrades, special purchases | 10–30 % |
Taxes (30 %): CHF 1,800 → tax reserve account
Safety (25 %): CHF 1,500 → emergency fund / safety account
Long-term goals (25 %): CHF 1,500 → Pillar 3a / investing / home savings
Enjoyment (20 %): CHF 1,200 → consciously spend on wishes or holidays
You can adapt the percentages to your life situation – the key is that you decide in advance and stick to your rule.
4. Estimating the tax impact of your 13th salary
To choose your “tax bucket” percentage, it helps to estimate how much of your 13th salary will go to the tax office in the end.
4.1 Simple estimation methods
- Use your average tax rate: Look at your last tax assessment (total tax ÷ taxable income).
- Check an online calculator: Enter your income with and without 13th salary and compare.
- Ask your employer/payroll: For withholding tax, they can show you the deduction impact.
Your average tax rate is ~18 %. On a CHF 6,000 13th salary, that’s about CHF 1,080 in taxes.
You decide to round up and reserve 25 % (CHF 1,500) – a bit extra for safety.
If your income or family situation changed, plan slightly more conservatively for one year and adjust after you’ve seen the new assessment.
5. Recommended strategies for different situations
5.1 You have debt (credit cards, consumer loans)
High-interest debt is often more expensive than any return you get from investing. A possible allocation:
- Taxes: 25–30 %
- Debt repayment: 30–40 %
- Safety (small emergency buffer): 20–30 %
- Enjoyment: 0–10 % (small reward is OK)
5.2 You lack an emergency fund
If you don’t have at least a starter buffer (e.g. CHF 1,000–2,000), the 13th salary is a strong opportunity:
- Taxes: 25–30 %
- Safety (emergency fund): 30–40 %
- Long-term goals: 20–30 %
- Enjoyment: 10–20 %
For detailed guidance, see Emergency saving plan: first CHF 1,000 and Emergency fund vs. investing – what first?.
5.3 You are already financially stable
If you have a solid emergency fund and no expensive debt, you can focus more on long-term goals:
- Taxes: 20–30 %
- Long-term goals (3a, investing, home savings): 40–60 %
- Enjoyment & experiences: 20–40 %
6. Implementation in BudgetHub
- Create a plan before payout: Add a note or “event” in your calendar and BudgetHub a few weeks before the 13th salary date.
- Define your buckets: Decide your percentages for taxes, safety, goals and enjoyment.
- Set or adjust saving goals: e.g. “Tax reserves 2026”, “Emergency fund”, “Holiday 2026”, “Pillar 3a 2026”.
- On payday, split the inflow: Record transfers to your different accounts and link them to the relevant goals.
- Tag the transaction: Use a tag like “13th salary 2025” so you can review your decisions next year.
- Review once a year: After the tax assessment arrives, check whether your tax bucket was sufficient and adjust your rule if needed.
Combined with a monthly tax reserve plan from Set aside taxes: monthly plan (CH), your 13th salary becomes part of a system, not a one-off windfall.
7. FAQ: 13th salary & taxes in Switzerland
Is the 13th salary taxed differently from normal salary?
In most cases, the 13th salary is treated as ordinary taxable income. It increases your yearly taxable income, which can lead to a higher overall tax bill. For withholding tax, the deduction may be higher in the payout month, depending on the tariff.
How much of my 13th salary should I reserve for taxes?
That depends on your overall tax rate. Many people reserve between 20–35 % of their 13th salary for taxes. If you’re unsure, start on the higher side for one year and adjust after you’ve seen your tax assessment.
Can I use my 13th salary entirely for holidays or large purchases?
You can – but it’s risky if you haven’t covered taxes, emergency fund and existing debts first. A safer approach is to allocate a portion (for example 20–30 %) for enjoyment and use the rest to stabilise your finances and future.
How does the 13th salary affect people with withholding tax?
If you’re taxed at source, the tax is usually deducted directly from your 13th salary. However, additional income, changes in residence or later transition to ordinary taxation can still create extra tax bills. It’s wise to keep some buffer, especially if your situation is changing.
Should I pay into Pillar 3a with my 13th salary?
Many people use part of their 13th salary to maximise Pillar 3a and reduce taxes. However, 3a money is locked for the long term, so make sure your tax reserves and emergency fund are covered first. Learn more in Pillar 3a (CH) – save taxes 2026.
Turn your 13th salary into a yearly strategy
With BudgetHub, you can decide once how to allocate your 13th salary or bonus – between taxes, safety and long-term goals – and then repeat your strategy every year with just a few clicks.
Plan your next 13th salary now