Salaries, pensions and other income
We use your salary certificates, pensions, allowances, supplementary income and other taxable items to prepare a complete return.
Personal taxation · Geneva
Karpeo prepares and files your tax return in the canton of Geneva. Income, wealth, deductions and specific situations are reviewed by a trained team under the supervision of Swiss certified accountants.
Swiss certified accountants Your return is reviewed by a named contact in Geneva.

A clear process
A reliable return requires gathering information, understanding changes during the year, checking deductions and documenting reported items. Our team organises this work with you so you are not left alone with the form.
Employee, couple, family, property owner, self-employed professional, cross-border worker or subject to withholding tax: the initial discussion identifies the information actually required.
You gather the requested evidence progressively. We check it for consistency and identify precisely what is missing.
We prepare the return, review important points with you and arrange filing once you approve it.
What we check
Our work is not simply copying figures into software. We reconcile documents, identify issues requiring clarification and prepare a return reflecting your situation in the canton of Geneva.
We use your salary certificates, pensions, allowances, supplementary income and other taxable items to prepare a complete return.
Bank accounts, investments, shareholdings, debts and property in Switzerland or abroad are reported according to your position at 31 December.
Pension contributions, professional expenses, childcare, training, interest, donations and other deductions are checked against supporting documents.
Once you approve it, we finalise the return and arrange filing with the Geneva Cantonal Tax Administration.

Tax · Returns · Supervision

Tax · Advice · Supervision
5/5 · Google review“Romain Prieur and his Karpeo team stand out for smooth management, efficiency and responsiveness. I recommend them.”
Claire Thiercelin · Karpeo client
A tax return that deserves proper review
Your return affects your tax assessment. It must be prepared carefully, particularly when circumstances have changed or include assets, property or self-employment.
Personal situations
A job change, marriage, separation, birth, home purchase or start of self-employment changes the information to report and checks required.
We start from what actually happened during the year. You understand why information is requested and which evidence supports it.
Describe my situationPeople we support
We consider marital status, household income, dependent children, childcare costs and changes during the year.
Imputed rental value, mortgage interest, maintenance costs, property outside the canton, investments and other assets are included with the required evidence.
Your business result must be correctly included in your personal return. We coordinate tax information with your accounts where necessary.
We check whether a correction or subsequent ordinary assessment is relevant and available, then prepare the appropriate application.
Before sending us your file
Practical topics remain covered in our guides. This page keeps its main purpose: allowing you to entrust your return to a Geneva team.
The standard documents to gather before starting.
View the document list (in French)The steps to take when you need more time.
Understand extension requests (in French)The main items to review in the canton of Geneva.
Read the deductions guide (in French)Frequently asked questions
Official procedures and deadlines are published by the State of Geneva (in French).
This page concerns individuals taxable in the canton of Geneva. Karpeo assists employees, couples, families, property owners, self-employed professionals, taxpayers subject to withholding tax and cross-border workers where a return or personal tax application is required.
Documents depend on your situation. They generally include salary or pension certificates, bank and investment statements, pension evidence, childcare costs, debts, insurance premiums, donations and property documents. After an initial discussion, we provide a tailored list to avoid unnecessary requests.
We review Pillar 3a contributions, pension buy-ins, professional, transport, training and childcare costs, debt interest, property maintenance, donations and maintenance payments. Eligibility always depends on your situation and available evidence.
Unless an exception applies, the ordinary deadline set by the cantonal tax authority is 31 March. An extension may be requested. If you contact us after the deadline, we review reminders received and the next action without promising cancellation of charges already imposed by the authority.
Yes. If the ordinary deadline cannot be met, we can help request an extension from the cantonal tax authority. The application requires the identifiers shown on your return and may incur cantonal administrative fees.
Not always. Depending on residence, income, assets and deductions claimed, a correction request or subsequent ordinary assessment may be mandatory, available or unsuitable. The DRIS/TOU form must generally be filed by 31 March of the following year. We check your situation before applying.
Yes. We analyse household income, residence, income taxable in Switzerland and abroad, and the conditions for subsequent ordinary assessment. Quasi-resident status is never assumed and must be checked each year.
Yes. We include items outside Geneva or abroad and review their tax treatment, including for determining income, wealth and the applicable rate. We identify the information and evidence needed to document them correctly.
The price depends on document volume and complexity: couple, children, self-employment, property, investments, foreign income, withholding tax or subsequent ordinary assessment. We define the scope and price before starting.
Your Geneva tax return
Tell us your situation and the main items in your return. We will reply with the necessary documents, our scope and a price before starting.