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Wappen Kanton GraubündenHave your tax return for the Canton of Graubünden completed

We know the cantonal deductions, deadlines and special features in the canton of Graubünden – from holiday homes to tax allocation – and review your tax return in full, at a fixed price from CHF 35.–.

  • Personal specialist 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 Graubünden, the tax return for the 2025 tax year must be filed by 31 March 2026; a grace period applies until the end of May, and extensions can be requested online via the ePortal. 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 return in the canton of Graubünden – what you should know

The Graubünden tax law applies equally throughout the canton – but how much you pay in the end depends heavily on your municipality and on the deductions you claim.

Updated on 4 September 2026 · Tax year 2025

Professionally reviewed by FINWIWO AG on 4 September 2026.

Specialist discussing tax documents with a client

100 municipalities, three languages – and big differences

Since 1 January 2025, the canton of Graubünden has had 100 municipalities. The simple cantonal tax is derived from taxable income; the canton levies 95 % of it, and your municipality of residence applies its own tax multiplier – in 2025 between 30 % (Rongellen) and 120 %. Church tax is added depending on your denomination.

Graubünden is trilingual: German, Romansh and Italian. Forms and information are published in several languages – we support you throughout in German and explain every item clearly.

SofTax GR – the canton's declaration software

With SofTax GR, the canton provides free software (available for download from January each year). It allows the tax return, including attachments, to be filed fully electronically and without a signature; deadline extensions are handled via the cantonal ePortal.

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

Typical mistakes that cost Graubünden taxpayers money

In practice, we see the same points again and again: with holiday homes, the lump sums are applied incorrectly or the separate form is missing altogether. The comparatively very high Graubünden insurance deductions – up to CHF 11'600 for married couples without a pension fund – are not used to the full. The graduated child deduction of up to CHF 19'700 for education away from home remains unused.

The tax allocation for properties in several municipalities or cantons is also often recorded incompletely. A specialist checks every item individually and points out missing documents to you before the return is filed.

Get more out of it

Tax deductions in the canton of Graubünden – make use of every option

Anyone who knows all the permissible deductions and claims them correctly reduces their tax burden noticeably. 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

    A Graubünden strength: the canton has no upper limit on the travel expense deduction – the necessary costs of commuting to work are deductible (at federal level, the cap applies). In addition, meals away from home at CHF 15 per working day or a maximum of CHF 3'200 per year.

  2. 02

    Insurance premiums & savings interest

    With contributions to a pension fund or pillar 3a, up to CHF 9'200 (married persons) or CHF 4'600 (others) is deductible; without such contributions CHF 11'600 or CHF 5'800 – plus CHF 1'000 per child (2025 tax year). One of the highest values in Switzerland.

  3. 03

    Pillar 3a & retirement provision

    Payments into tied pension provision are deductible up to CHF 7'258 (2025 tax year, employees with a pension fund); pension fund buy-ins are added to this. We assign the certificates to the correct item and check whether the permissible amount has been fully used.

  4. 04

    Child deductions & third-party childcare

    Graduated child deduction: CHF 6'600 for pre-school age, CHF 9'900 for older children and children in education, up to CHF 19'700 for a stay away from home for educational reasons. In addition, documented third-party childcare costs of up to CHF 10'900 per child (2025 tax year).

  5. 05

    Continuing education costs

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

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

    Donations & charitable contributions

    Voluntary contributions to tax-exempt charitable institutions domiciled 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. We clarify which deductions can be substantiated in your situation before we start processing – free of charge and without obligation.

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

Keeping track of dates

Deadlines and filing in the canton of Graubünden

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
31 March 2026 for the 2025 tax year (self-employed persons and non-residents of the canton with property in GR: 30 September 2026)
Deadline extension
Online via the ePortal; first extension until 30 September (application by 20 May), with justification until 30 November
Electronic tax return
SofTax GR – fully electronic filing without a signature
In case of late filing
Grace period until the end of May, then a reminder; fine of up to CHF 1'000 possible

Missed the deadline? No need to panic.

Graubünden has a grace period: until the end of May, nothing happens without an application; reminders only follow in June. Anyone who needs more time applies for an extension online via the ePortal – the first until 30 September, in justified cases until 30 November. The application is only answered if it is rejected.

If that deadline is also missed, a reminder, a fine and a discretionary assessment may follow. Contact us early – we clarify with you what is still possible and take care of the application.

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

Secure the deadlines – request now

Withholding tax

Withholding tax in the canton of Graubünden

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

01

Who is subject to withholding tax?

In principle, foreign employees without a C settlement permit who are resident or staying in the canton, as well as cross-border commuters. The Withholding Tax Section of the Graubünden tax administration is responsible.

02

NOV – subsequent ordinary assessment

From income subject to withholding tax of at least CHF 120'000 in a calendar year, the subsequent ordinary assessment (NOV) is mandatory – for married couples, the income of one person is sufficient – and it remains in place in subsequent years. Below this threshold, it can be carried out on request, for example to claim additional deductions.

03

Cross-border commuters from Italy

As a border canton, Graubünden applies the new cross-border commuter agreement with Italy: new cross-border commuters have paid eighty per cent of the ordinary withholding tax since 2024 and are assessed in Italy with a credit for the tax paid; transitional rules apply to existing cases. We check your situation before we start processing.

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

Have your withholding tax checked

From the canton of Graubünden

Typical situations in the canton of Graubünden

Holiday and second homes

Graubünden requires a separate form for each rented furnished holiday home – with lump sums for ancillary costs and furnishings; from CHF 30'000 in gross income, only actual costs apply. Anyone who uses the home themselves is taxed on at least the imputed rental value. We record this correctly and in full.

Property in GR, residence elsewhere

Anyone who lives outside the canton and owns property in Graubünden has limited tax liability here – with an extended filing deadline until 30 September and a separate form solution. We take care of the tax allocation between the cantons.

Cross-border commuters and international aspects

Graubünden is a border canton under the new cross-border commuter agreement with Italy: new cross-border commuters have paid eighty per cent of the ordinary withholding tax since 2024 and are additionally assessed in Italy. We clarify which rules apply to you before we start processing.

Tourist resorts with low tax multipliers

Of all places, well-known holiday resorts are among the lowest-tax municipalities: St. Moritz and Silvaplana at 55 %, Flims at 60 %, Laax at 40 % (2025 tax year). The range in the canton extends from 30 % to 120 % – your municipality of residence makes a big difference.

Property, imputed rental value and holiday homes in the canton of Graubünden

Anyone who owns residential property in the canton of Graubünden is taxed on the imputed rental value as income and can in return deduct mortgage interest, maintenance and administration costs. The clear separation is decisive: repairs and replacements preserve the value and are deductible, an extension increases it and is not.

Holiday homes are a Graubünden speciality: a separate form must be filed for each rented furnished home – with a lump sum of 10 per cent of gross income for ancillary costs and a furnishing deduction of one fifth to one third. From CHF 30'000 in gross income per building, only the actual costs apply, and at least the imputed rental value must always be taxed.

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

  • Imputed rental value and property details recorded correctly
  • Holiday homes declared with a separate form and lump sums
  • Mortgage interest and list of debts checked
  • Maintenance: value-preserving separated from value-enhancing
  • Tax allocation between municipalities and cantons taken into account

Additional service: CHF 65.– per property.

Communal comparison

Tax multipliers of the municipalities in the canton of Graubünden

The tax burden is calculated from the simple cantonal tax, multiplied by the cantonal tax multiplier (95 % in the 2025 tax year) and the tax multiplier of your municipality of residence; church tax is added depending on your denomination. The following selection shows some of the larger and some particularly low-tax municipalities.

In 2025, the range extends from 30 % (Rongellen) to 120 % (including Rhäzüns and Val Müstair) – a fourfold difference. Depending on where you live, your tax burden can differ considerably; all the more important is a tax return that makes full use of all permissible deductions.

Communal tax multipliers (canton of Graubünden)(opens in a new tab on gr.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 Graubünden

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

Frequently asked questions

Frequently asked questions – Canton of Graubünden

The key answers about your tax return in this canton.

Transparency

Official information

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

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Other cantons

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