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Wappen Kanton ThurgauHave your tax return for the Canton of Thurgau completed

We know the cantonal deductions, deadlines and special features of the canton of Thurgau and check your tax return in full – with personal support and at a fixed price from CHF 35.–.

  • Personal expert review of your documents
  • All cantonal deductions checked
  • Deadline extension included free of charge
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The short answer

In the canton of Thurgau, the tax return for the 2025 tax year must be submitted to the communal tax office by 30 April 2026; a deadline extension is possible until 30 September and is included with us. We prepare your tax return at a fixed price per tax year: CHF 35.– for apprentices and students, CHF 99.– for individuals, CHF 149.– for married couples and families.

Cantonal knowledge

Tax returns in the canton of Thurgau: what you should know

The Thurgau tax act applies equally throughout the canton – but how much you pay in the end depends heavily on your municipality, your school district and the deductions you claim.

Updated on 2 September 2026 · Tax year 2025

Professionally reviewed by FINWIWO AG on 2 September 2026.

Specialist discussing tax documents with a client

80 municipalities – and a three-tier tax multiplier system

The canton of Thurgau has 80 political municipalities. The cantonal and communal taxes owed are calculated from the simple tax multiplied by the total tax multiplier: the cantonal tax multiplier (109 % in the 2025 tax year, unchanged since 2022) plus the tax multipliers of the political municipality, the school district and, depending on your denomination, the parish.

A Thurgau peculiarity: because school districts are independent in many places, the total tax multiplier can differ within the same political municipality depending on the locality. In 2025 the range – excluding church tax – runs from 199 % (Warth-Weiningen) to 286 % (Arbon, main locality).

eFisc – the canton's tax return software

With eFisc, Thurgau provides free tax return software for Windows, macOS and Linux. The tax return can be submitted electronically with it – including supporting documents; the submission password is printed on the main form of your tax return.

eFisc is an option for anyone who wants to complete the return themselves. If you want to be sure that every item is recorded correctly and completely, we take care of it for you: we enter your details, discuss the draft with you and prepare the submission.

Typical mistakes that cost Thurgau taxpayers money

In practice we keep seeing the same issues: cross-border commuter situations involving Germany are declared incorrectly or the certificate of residence is missing. For commuting by private vehicle, the proof of necessity is missing, so the travel expense deduction is lost entirely. The insurance deduction is not fully used.

The graduated child deductions for children in education also often go unused. A specialist checks every item individually and points out missing documents to you before the return is submitted.

Get more out of it

Tax deductions in the canton of Thurgau: using every option

Knowing all permitted deductions and claiming them correctly noticeably reduces your tax burden. We systematically check every deduction item for your situation. The following maximum amounts apply to the 2025 tax year (cantonal and communal taxes); the official guidelines are authoritative.

  1. 01

    Professional expenses & commuter deduction

    Travel expenses between home and work are deductible in the canton of Thurgau up to CHF 6'000 per year (federal: CHF 3'300), plus meals away from home at CHF 15 per working day or a maximum of CHF 3'200 per year. Graduated per-kilometre rates apply to cars; the necessity must be proven.

  2. 02

    Insurance premiums & savings interest

    Up to CHF 7'000 is deductible for jointly taxed persons or CHF 3'500 for single persons – plus CHF 1'000 per child (2025 tax year).

  3. 03

    Pillar 3a & pension provision

    Contributions to restricted pension provision are deductible up to CHF 7'258 (2025 tax year, employees with a pension fund); pension fund buy-ins come on top. We assign the certificates to the correct item and check whether the permitted amount has been used in full.

  4. 04

    Child deductions & third-party childcare

    Child deduction of CHF 7'400 per child, graduated up to CHF 10'600 for children in education, as well as documented third-party childcare costs of up to CHF 10'100 per child under 14 (2025 tax year). One of the conditions is that both parents are gainfully employed.

  5. 05

    Continuing education costs

    Job-related education and training: up to CHF 13'000 per person and year (2025 tax year, canton of Thurgau and federal). This includes course fees, teaching materials, examination fees and travel costs to the course venue.

    Official source(opens in a new tab on steuerverwaltung.tg.ch)
  6. 06

    Donations & charitable contributions

    Voluntary contributions to tax-exempt charitable institutions based in Switzerland as well as contributions to political parties, each within the applicable limits.

There are also further items such as debt interest, maintenance payments, property costs or asset management costs. Which deductions can be substantiated in your situation is something we clarify before processing – free of charge and without obligation.

Guidelines and forms of the canton(opens in a new tab on steuerverwaltung.tg.ch)

Keeping track of dates

Deadlines and submission in the canton of Thurgau

The date on your personal tax documents is always authoritative. The following overview refers to the 2025 tax year.

Deadlines at a glance

Ordinary filing deadline
30 April 2026 for the 2025 tax year, at the communal tax office
Deadline extension
At the communal tax office; first request until 30 September, with justification until 30 November
Electronic tax return
eFisc software with electronic submission incl. supporting documents
If late
After a reminder, a disciplinary fine and a discretionary assessment are possible

Missed the deadline? No need to panic.

If you need more time, submit the request to the communal tax office of your municipality of residence – many municipalities offer this online. The first request is generally granted until 30 September, in justified cases until 30 November.

If the deadline has already passed, a reminder usually follows first. In that case, get in touch early – we clarify with you what is still possible and take care of the application.

With us, the deadline extension is included in the package price free of charge.

Secure the deadlines – request now

Withholding tax

Withholding tax in the canton of Thurgau

If your salary is taxed directly at source, an ordinary tax return is not automatically necessary – but in certain cases it is mandatory or possible on a voluntary basis.

01

Who is subject to withholding tax?

Generally foreign employees without a C settlement permit who are resident or staying in the canton, as well as cross-border commuters. Since 2023, the cantonal tax administration – no longer the communal tax office – has been responsible for withholding tax.

02

NOV – subsequent ordinary assessment

From a gross annual income of CHF 120'000 from employment, the subsequent ordinary assessment is mandatory; for married couples, each person is assessed individually. The NOV then applies until the end of the withholding tax liability.

03

How we support you

We check the tariff code, marital status, other income and possible deductions and assess whether an NOV is worthwhile in your case – especially in cross-border commuter situations involving Germany. We then submit the application on time and prepare the complete tax return.

This information is for guidance only and does not replace an individual assessment. We check your specific situation before processing.

Have your withholding tax checked

From the canton of Thurgau

Typical situations in the canton of Thurgau

Cross-border commuters: living in Thurgau, working in Germany

If you live in Thurgau and work in Germany as a cross-border commuter, your salary is, under the double taxation agreement, generally taxed at your place of residence in Switzerland; Germany may levy a limited withholding tax, which is credited. The details depend on the individual case – we clarify your situation before processing.

Cross-border commuters: living in Germany, working in Thurgau

The reverse applies too: with a certificate of residence, a withholding tax capped at 4.5 per cent is levied in Thurgau, and the salary is taxed in Germany. Anyone who, for work-related reasons, does not return to their place of residence on many days loses cross-border commuter status – the ordinary withholding tax rates then apply.

The tax multiplier also depends on the school district

Alongside the political municipalities, Thurgau has independent school and parish districts with their own tax multipliers. The total tax multiplier can therefore vary even within the same political municipality depending on the locality. We assign your address correctly.

Commuters

Whether you commute to Frauenfeld, Kreuzlingen, Winterthur or St. Gallen: the travel expense deduction in the canton of Thurgau is capped at CHF 6'000 per year (2025 tax year). If you want to deduct your private vehicle, you need proof that public transport is not reasonable – we check this in advance.

Property and imputed rental value in the canton of Thurgau

If you own residential property in the canton of Thurgau, you pay tax on the imputed rental value as income and can in return deduct mortgage interest, maintenance and administration costs. The key is a clean separation: repairs and replacements preserve the value and are deductible, an extension increases it and is not.

Particularly in the lakeside municipalities on Lake Constance and the Untersee with sought-after locations, it pays to compile maintenance costs carefully – on a lump-sum or actual basis, depending on which is more favourable for your tax year.

If your property is located in another canton or you own several properties, a tax allocation is made between the public authorities involved. We record all properties in full so that the allocation remains traceable.

  • Imputed rental value and property details recorded correctly
  • Mortgage interest and list of debts checked
  • Maintenance: value-preserving separated from value-enhancing
  • Lump-sum or actual deduction compared
  • Properties outside the canton taken into account

Additional service: CHF 65.– per property.

Communal comparison

Tax multipliers of the municipalities in the canton of Thurgau

In Thurgau, the total tax multiplier is made up of the cantonal tax multiplier (109 % in the 2025 tax year), the political municipality, the school district and, depending on your denomination, the parish. The following selection shows total tax multipliers excluding church tax in the respective main locality.

In 2025 the range runs from 199 % (Warth-Weiningen) to 286 % (Arbon, main locality) – and because school districts set their own multipliers, the figure can vary even within a political municipality. This makes a tax return that fully exploits all permitted deductions all the more important.

Tax multipliers in the canton of Thurgau(opens in a new tab on steuerverwaltung.tg.ch)

Your preparation

Documents you should have ready

Depending on your situation, further documents may be needed. After your request we tell you exactly what is still missing.

Simple process

Your finished tax return in 4 clear steps

Request, discuss, approve – we take care of the rest for you.

  1. 01

    approx. 60 seconds

    Submit a request

    Fill in a short form with your contact details and canton of residence – free of charge and without obligation.

  2. 02

    within 24 hours

    Meet your advisor

    Your personal tax specialist gets in touch – at your home, in the office or by video call.

  3. 03

    upload or post

    Go through your documents

    Together you go through the checklist; anything missing can easily be sent later.

  4. 04

    after your approval

    Finished tax return

    We prepare the tax return, you approve it – then we file it for you.

Request now, free of charge

Transparent prices

Fair fixed prices – also in the Canton of Thurgau

Fixed price per tax year. Payment is made after completion, within 14 days.*

  • Apprentices & students

    CHF 35.–

    Up to CHF 30'000 gross salary

    Per tax return

    • Tax return included
    • Securities included
    • Deadline extension included
    • Advice and processing
    • Filing with the tax office
    • Available in all cantons
    Request now
  • Most popular

    Individuals

    CHF 99.–

    For employees & self-employed

    Per tax return

    • Tax return included
    • Securities included
    • Deadline extension included
    • Additional income included
    • Further education costs included
    • Filing with the tax office
    • Personal tax specialist
    • Advice by phone
    Request now

  • Married couples

    CHF 149.–

    Joint assessment

    Per tax return

    • Tax return included
    • Securities included
    • Deadline extension included
    • Joint assessment
    • Child deductions optimised
    • Third-party childcare costs
    • Filing with the tax office
    • Personal tax specialist
    Request now
  • Real estateCHF 65.– per property
  • InheritanceCHF 65.–
  • Express 72hCHF 100.–

See all prices and additional services

* Regular clients can pay online in advance.

Further reading

Related guide articles

In-depth articles on the topics addressed on this page.

Filing deadlines in all cantonsWhen which tax return is due – an overview of all cantons.Professional expenses and commuter deductionClaiming travel expenses, meals and other professional expenses correctly.Withholding tax and expatsWhen a subsequent ordinary assessment is worthwhile.Imputed rental value and maintenanceTaxing home ownership and properly separating maintenance costs.

Frequently asked questions

Frequently asked questions – Canton of Thurgau

The key answers about your tax return in this canton.

Transparency

Official information

The information provided by the Canton of Thurgau is always authoritative. Checked/updated: September 2026.

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Other cantons

We work in all 26 cantons – choose your canton for the relevant information.