
In the canton of St. Gallen, the so-called tax book reference is made to laws, rules and current changes when completing the tax return. This collection of legal articles is divided into:
- Income and wealth taxes: this part is relevant for all taxpayers who have to complete a tax return.
- Profit and capital tax: only legal persons are affected, ie companies and foundations that fill out their own tax return, which is essentially based on the accounting records of the respective company. For self-employed persons, however, the profit from a business or secondary occupation can be declared in the private tax return. A statement of income and expenditure, also known colloquially as a milk book, is often sufficient for this purpose; you can find a suitable template in our collection of checklists.
- Withholding tax: this affects foreign workers, weekly residents and cross-border commuters. They can also submit an application for regular taxation.
- Property gains tax: this tax is not payable annually, but only when the house or apartment is sold. Deductions for the sales and investment costs, as well as the deferral when a replacement property is purchased, must be taken into account. Since this tax can be very high, it is usually worth contacting an experienced tax advisor. Simpletax will the Property gains tax return offered as a standard serviceWhen selling or buying a new property, exiting and repaying the mortgage are also an issue.
- inheritance and gift tax
- Handling of municipal taxes in St. Gallen
- tax criminal law

In the canton of St. Gallen, the municipal tax offices are also responsible. However, they usually refer you to the canton's homepage for processing.
3 main functions: Software for the St. Gallen tax return 2023
In principle, the tax return can be filled out by yourself or be commissionedThe main features offered online are:
- extend the deadline
- Electronic tax return (so-called eFiling)
- Calculate taxes
eFiling has now replaced the old eTaxes software. It must be installed and updated on a PC running Windows, MacOS or Linux. Unfortunately, eFiling cannot be used on tablets or as a cloud application. The advantage is the electronic filing process, but it can still be signed by hand at the end using the PC software or the PDF form.
This leaves the user wondering whether commercial software would be better. Or you can elegantly delegate the problem to a professional service provider. This not only solves the software problem, but more importantly, all the deductions and the correct calculation are made.
With the tax return as a service you can also save yourself the tax calculator for the St. Gallen tax return, as the calculation is included.
Fill out your St. Gallen 2023 tax return
If you decide to use the service, Simpletax complete processing by post or by electronic form submission (upload). The meeting will take place on a appointment online (video consultation) or we will contact you by phone if you have any questions.
property gains tax return in the canton of St. Gallen
Worth it, to have this tax return completed by a tax advisor, because with the correct calculation of the investment costs, thousands of francs can often be saved.
The location of the property is decisive for the property gains tax return.
There is no special software for the property gains tax return in St. Gallen, there are only PDF forms for a preliminary calculation and the final tax return.
In general, the property gains tax return is charged at the guide price. We will determine the facts of the case with a free preliminary clarification before offering this service. It is best to send us your data with the property gains tax calculator Zuko financing.
Dates for the SG tax return
You can request an extension for submitting your tax return electronically For special taxes, it is worth contacting the tax office directly. Deadlines are often very tight, with deadlines of 30 days.
For the regular tax return, the deadlines apply as printed on page 1 of the form. Repeated reminders are charged at 250 francs in the canton of St. Gallen.
deductions in the SG tax return
Page 4 of the guide provides a good overview of all deductions and allowances with the respective changes compared to the previous year:
