Skip to content
steuermacher.ch – Have your tax return done

Request your tax return

Wappen Kanton AargauHave your tax return for the Canton of Aargau completed

We know the cantonal deductions, deadlines and special features in the Canton of Aargau and review 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
  • 500+ Google reviews with 4.9★

Tax return for:

Step 1 of 3

Tax return for:, What matters to you?, Your personal details
Tax return for

Our Google reviews are provided by Trustindex. Loading them transfers data to Trustindex and Google.

steuermacher.ch is a brand of FINWIWO AG.

The short answer

In the Canton of Aargau, the tax return for the 2025 tax year must be filed by 31 March 2026; however, the tax office does not send reminders before 30 June 2026 – until then, no deadline request is needed. 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 Aargau: what you should know

The Aargau tax law applies equally throughout the canton – but how much you ultimately pay depends heavily on your municipality and on 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

196 municipalities, one tax law – but big differences

With 196 municipalities, Aargau is one of the cantons with the most municipalities. The simple tax is derived from taxable income; it is multiplied by the cantonal tax multiplier (111 % in the 2025 tax year) and the tax multiplier of your municipality of residence, plus church tax depending on your denomination. In 2025, communal tax multipliers range from 48 % (Oberwil-Lieli) to 127 % (Mellikon).

For your tax return, this changes nothing about how the data is recorded: what matters is your municipality of residence – if you move within the canton, generally the one at the end of the year. We clarify such points before processing.

eTAX AARGAU – new from the 2025 tax year

Aargau has replaced the previous EasyTax software: from the 2025 tax return onwards, eTAX AARGAU provides a web-based application – with no installation, with login via the AGOV government login and, for the first time, with fully electronic filing without a signature. Paper forms remain available through the communal tax office.

eTAX AARGAU 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 record your details, discuss the draft with you and prepare the filing.

Typical mistakes that cost Aargau taxpayers money

In practice, we see the same points again and again: the child deductions, significantly higher since 2025, are not used to the full. For commuting by private vehicle, proof of necessity is missing, so the travel expense deduction is lost entirely. The generous further training deduction of up to CHF 18'000 remains unused.

The increased insurance premium deduction is also often not claimed in full. A specialist checks every item individually and points out missing receipts to you before filing.

Get more out of it

Tax deductions in the Canton of Aargau: making use of every option

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

  1. 01

    Professional expenses & commuter deduction

    Travel expenses between home and workplace are deductible in the Canton of Aargau up to CHF 7'000 per year (Confederation: CHF 3'300), plus meals away from home at CHF 15 per working day or a maximum of CHF 3'200 per year. If a private vehicle is used, its necessity must be proven.

  2. 02

    Insurance premiums & savings interest

    The lump sum is CHF 7'200 for married persons or CHF 3'600 for other taxpayers (2025 tax year) – it was increased by CHF 400 or CHF 200 respectively as of 2025.

  3. 03

    Pillar 3a & pension provision

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

  4. 04

    Child deductions & third-party childcare

    Child deduction now CHF 9'300 (up to the age of 14), CHF 10'300 (up to 18) or CHF 12'400 (adult children in education), as well as documented third-party childcare costs of up to CHF 25'000 per child (2025 tax year). One of the requirements is that both parents are gainfully employed.

  5. 05

    Further training costs

    Job-related education and further training: in the Canton of Aargau up to CHF 18'000 per year (Confederation: CHF 13'000) – one of the most generous figures in Switzerland (2025 tax year). This includes course fees, teaching materials, examination fees and travel costs to the course venue.

    Official source(opens in a new tab on ag.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.

On top of this come 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 processing – free of charge and without obligation.

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

Keeping track of dates

Deadlines and filing in the Canton of Aargau

The date on your personal tax documents is always decisive. 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: 30 June 2026)
Grace rule
No reminders before 30 June 2026 – until then, no deadline request is needed
Electronic tax return
eTAX AARGAU with AGOV login (new from the 2025 tax year)
In case of delay
1st reminder CHF 35, 2nd reminder CHF 50; after that, a discretionary assessment is possible

Missed the deadline? No need to panic.

Aargau is accommodating: no reminders are sent before 30 June 2026, and until then no deadline extension request is needed. Anyone who needs more time beyond that submits the request to the communal tax office before the deadline expires – online or in writing.

If the deadline has already passed, the first reminder costs CHF 35, the second CHF 50. 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 Aargau

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?

In principle, foreign employees without a C settlement permit who are resident or staying in the canton – for example with a B or L permit. The competent authority is the withholding tax section of the Cantonal Tax Office of Aargau.

02

NOV – subsequent ordinary assessment

From a gross annual income of CHF 120'000 from employment, the subsequent ordinary assessment is mandatory – likewise if there is income not subject to withholding tax or taxable assets; the canton sets the threshold values for this.

03

How we support you

We check the tariff code, marital status, other income and possible deductions and assess whether a subsequent ordinary assessment is worthwhile in your case. 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 Aargau

Typical situations in the Canton of Aargau

Commuters

Many Aargau residents work in Zurich, Basel, Bern or Zug. What matters for the tax return remains the place of residence in Aargau. The travel expense deduction is capped at the cantonal level at CHF 7'000 per year (2025 tax year) – considerably more than at federal level.

Families: higher child deductions since 2025

With the revision as of 1 January 2025, child deductions rose significantly: CHF 9'300 up to the age of 14, CHF 10'300 up to the age of 18 and CHF 12'400 for adult children in education. On top of this come third-party childcare costs of up to CHF 25'000 per child – we check the requirements.

Further training particularly attractive

The Canton of Aargau allows a deduction of up to CHF 18'000 per year for job-related education and further training – more than the Confederation (CHF 13'000). Anyone paying for a major course of further training themselves should submit the receipts in full; we assign them correctly.

Inheritance and gifts

In Aargau, spouses, descendants as well as stepchildren and foster children are exempt from inheritance and gift tax; parents are also exempt under certain conditions. Progressive rates apply to other heirs. We clarify what this means for your tax return on a case-by-case basis.

Property and imputed rental value in the Canton of Aargau

Anyone who owns residential property in the Canton of Aargau pays 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.

As of 2025, Aargau has also reduced the wealth tax for individuals – this too directly affects owners, because properties count as taxable assets.

If your property is located in another canton or if 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 and 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 Aargau

The tax burden is derived from the simple tax, multiplied by the cantonal tax multiplier (111 % 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 48 % (Oberwil-Lieli) to 127 % (Mellikon). Depending on where you live, your tax burden can differ considerably – all the more reason for a tax return that makes full use of all permissible deductions.

Communal and church tax multipliers 2025 (Canton of Aargau)(opens in a new tab on ag.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 Aargau

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 which tax return is due – an overview of all cantons.Professional expenses and commuter deductionClaiming travel expenses, meals and other professional expenses correctly.Education and further trainingWhen further training costs are deductible – and to what extent.Understanding inheritance taxWho pays, who is exempt – the basics explained simply.

Frequently asked questions

Frequently asked questions – Canton of Aargau

The key answers about your tax return in this canton.

Transparency

Official information

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

Here for you throughout Switzerland

Other cantons

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