Canton St. Gallen is a large and diverse canton in Eastern Switzerland, with urban centres, smaller towns and rural municipalities. As in the rest of Switzerland, the overall income tax burden consists of federal, cantonal and communal components, with the effective level strongly influenced by the local communal multiplier (Steuerfuss).

This page provides simplified examples to illustrate how income tax in St. Gallen can work in practice for different taxpayer profiles. The examples are indicative only and do not replace a formal tax calculation or personalised advice.

General Assumptions Used in the Examples

Unless stated otherwise, the examples assume:

• A tax year in which the relevant St. Gallen cantonal tariffs and federal tariffs are in force.
• Standard personal deductions available under St. Gallen and federal law.
• A typical communal tax multiplier (neither particularly low- nor high-tax commune).
• No extraordinary deductions, losses carried forward or special regimes.

The purpose is not to reproduce exact tariff tables, but to show the logic of how different factors influence the overall tax burden.

Example 1 – Single Employee with Employment Income Only

Profile:

• Single individual, no children.
• Resident in a mid-range tax commune in St. Gallen.
• Annual gross employment income: CHF 80,000.
• No significant other income, no real estate, modest bank assets.

Step 1 – Determine Taxable Income

From the gross salary, various deductions are made, for example:

• Social security and pension contributions (AHV/IV/EO, ALV, 2nd pillar),
• Professional expenses (either lump-sum or actual commuting and work-related costs),
• Certain insurance premiums and other standard deductions.

After these deductions, the taxpayer might have an illustrative taxable income for cantonal and communal tax of around CHF 60,000.

Step 2 – Federal Tax

The federal income tax is calculated on the taxable income using the federal tariff for single taxpayers. On taxable income of CHF 60,000, the resulting federal tax is relatively modest, as the federal tariff is progressive and begins at low rates.

Step 3 – St. Gallen Cantonal and Communal Tax

The same taxable income is used for the St. Gallen cantonal tax calculation. The cantonal tariff for single taxpayers is applied, producing a cantonal tax amount according to the progressive scale. The cantonal tax is then multiplied by the communal tax multiplier of the place of residence to determine the communal tax.

Result

Adding together:

• Federal income tax,
• Cantonal income tax, and
• Communal income tax

gives the total income tax burden for the year. In percentage terms, the effective combined tax rate on the gross income of CHF 80,000 will typically lie in the lower to mid double-digit range, depending on the precise deductions and the communal multiplier.

Example 2 – Married Couple with Two Incomes and Children

Profile:

• Married couple, jointly taxed, with two children.
• Resident in a St. Gallen commune with an average multiplier.
• Spouse A: gross employment income CHF 95,000.
• Spouse B: gross employment income CHF 45,000.
• No self-employment income, modest bank assets, no rental income.

Step 1 – Combine Income and Apply Deductions

The income of both spouses is combined for tax purposes (CHF 140,000). From this combined income, deductions are made for:

• Social security and pension contributions for both spouses,
• Professional expenses and commuting costs,
• Insurance premiums (where deductible),
• Family-related deductions and child allowances available under St. Gallen law.

After these deductions, the combined taxable income might, for illustration, be in the range of CHF 105,000–110,000.

Step 2 – Federal Tax for Married Couple with Children

The federal tariff for married couples and families is applied. Due to the more favourable progression for families compared to single taxpayers, the effective federal tax burden is moderated.

Step 3 – St. Gallen Cantonal and Communal Tax

The same taxable income is used for St. Gallen’s cantonal tariff applicable to married taxpayers with children. The resulting cantonal tax is then multiplied by the communal multiplier. The presence of children and family-related allowances reduces the tax burden compared to a childless couple at the same income level.

Result

The effective overall income tax rate (federal, cantonal, communal) on the combined gross income of CHF 140,000 will reflect:

• The benefit of joint taxation,
• Family and child allowances, and
• The specific communal multiplier in St. Gallen.

Example 3 – Expat Employee Subject to Withholding Tax

Profile:

• Foreign national working in St. Gallen, no permanent residence permit.
• Resident in St. Gallen, annual gross salary: CHF 120,000.
• No Swiss real estate, moderate foreign investment income.

Step 1 – Withholding Tax Deducted from Salary

The employer withholds income tax directly from the monthly salary, based on the St. Gallen withholding tax tariff. The tariff takes into account the taxpayer’s marital status and number of children, but cannot reflect every individual deduction in detail.

Step 2 – Possible Subsequent Ordinary Assessment

If certain conditions are met – for example, if the salary exceeds a statutory threshold, or if the taxpayer has significant other income or assets – the St. Gallen tax authorities may require a subsequent ordinary assessment. The taxpayer can also request such an assessment in order to claim deductions not fully covered by the withholding tariff.

Step 3 – Final Tax Calculation

In a subsequent ordinary assessment, the taxpayer files a full tax return. Federal, cantonal and communal taxes are calculated as if the taxpayer were subject to ordinary taxation from the start. The withholding tax already deducted by the employer is then credited against the final tax due. The outcome can be:

• Additional tax payable, if the withholding tax was lower than the ordinary tax, or
• A refund, if the withholding tax exceeded the ordinary tax burden.

This example highlights that withholding tax is often only a provisional mechanism, and that the final tax burden may differ once all relevant factors are taken into account.

Example 4 – Employee Owning Real Estate in St. Gallen

Profile:

• Resident employee in St. Gallen with gross salary of CHF 100,000.
• Owner-occupied house or apartment in the canton.
• Mortgage on the property and some investment income.

Step 1 – Income Side

For tax purposes, the taxpayer must declare:

• Employment income,
• An imputed rental value for the property (if applicable),
• Investment income such as interest and dividends.

Step 2 – Deductions Related to the Property

The taxpayer may deduct:

• Mortgage interest,
• Allowable maintenance costs or a lump-sum for property maintenance (subject to St. Gallen rules),
• Other general deductions as per federal and cantonal law.

Step 3 – Combined Tax Burden

After taking the property-related deductions into account, the taxable income may be higher or lower than for a comparable tenant, depending on the relationship between imputed rental value and deductible mortgage interest and maintenance costs. The resulting federal, cantonal and communal taxes reflect this balance, showing how real estate ownership interacts with income taxation in St. Gallen.

Example 5 – Self-Employed Professional in St. Gallen

Profile:

• Self-employed professional (e.g. consultant) resident in St. Gallen.
• Annual gross business income: CHF 150,000.
• Business expenses for travel, office, professional insurances and equipment.

Step 1 – Determine Business Profit

The taxpayer prepares a profit and loss statement for the business. From the gross income of CHF 150,000, all allowable business expenses are deducted, resulting in a business profit that is subject to income tax.

Step 2 – Add Other Income and Apply Deductions

Any other income (e.g. investment income) is added to the business profit. The taxpayer can then claim personal deductions (social security contributions, insurances, family-related deductions, etc.) to arrive at taxable income.

Step 3 – Apply Federal, Cantonal and Communal Taxes

The taxable income is subject to:

• Federal income tax under the federal tariff, and
• Cantonal and communal tax under the St. Gallen tariff and the local communal multiplier.

Because business profits can fluctuate from year to year and additional obligations (e.g. advance payments, provisional assessments) may apply, self-employed taxpayers often face more complex cash flow and planning issues than employees.

How to Use These Examples

These examples are designed to show:

• How federal, cantonal and communal taxes interact in St. Gallen,
• How family situation, income level and commune of residence impact the outcome,
• How withholding tax and ordinary assessment can lead to a final adjustment, and
• How ownership of real estate or self-employment changes the picture.

For precise tax planning or to understand your personal situation in St. Gallen, a detailed calculation using the current tariff tables and your actual data is required. You may wish to combine the examples on this page with:

• the St. Gallen Income Tax Rates ,
• the Deductions ,
• the Filing Requirements and Special Rules ,
• as well as the St. Gallen Income Tax Calculator for a simplified numerical estimate.

For tailored advice or representation in complex or cross-border situations, you can also contact the St. Gallen Income Tax Service .