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Interest · Swiss Banks · German TaxationSwiss Interest Income for German Residents
If you are tax resident in Germany and receive interest from Switzerland, this investment income generally needs to be reported under German tax law. This applies in particular to Swiss bank accounts, savings and fixed-term deposits, bonds and other interest-bearing claims. You also need to check whether Swiss withholding tax has been deducted, whether full relief is available under the Germany–Switzerland double tax treaty, and how to convert the amounts from CHF into EUR.
Overview
A Swiss bank or debtor does not remove your German tax obligations
German tax residents are generally subject to German income tax on foreign investment income as well. The fact that the account, bank or debtor is located in Switzerland does not make the interest irrelevant for German tax purposes.
The first step is to identify the type of investment income. German tax treatment, any Swiss tax withheld, treaty relief and currency conversion must then be considered together.
Related guidance for Swiss residents
For the reverse situation—German interest income received by a Swiss resident—see the related guidance on TaxRep Switzerland.
Review Process
Four steps to determine the correct tax treatment
Swiss bank documents provide the underlying data. The German tax treatment must nevertheless be determined separately.
- Identify the type of interest income
- Determine the gross income and when it was received
- Review Swiss withholding tax and treaty relief
- Prepare the amounts in EUR for German tax purposes
Types of Interest
Which types of Swiss interest income may be relevant?
Interest-bearing investments do not all work in the same way. For German tax purposes, the first step is therefore to identify the legal arrangement from which the investment income arises.
Account interest
Interest on Swiss current accounts, savings accounts, instant-access deposits and comparable bank accounts.
Fixed-term deposits
Interest on deposits with an agreed term, maturity date and interest rate.
Bonds
Coupons, interest receivables and, where applicable, additional income on sale or redemption.
Loans
Interest on private loans or debt claims against Swiss individuals or companies.
Fixed-term deposits are covered by the interest income rules
Swiss fixed-term deposits can generally be assessed within the framework described on this page. The agreed term, interest arrangements and timing of receipt are relevant to the review.
German Taxation
The investment income is generally the starting point for German tax
Interest on bank balances, fixed-term deposits, bonds and other debt claims may constitute investment income for German tax purposes.
A Swiss bank generally does not deduct German tax in the same way as a domestic German paying agent. Investors therefore need to prepare their foreign income for German income tax purposes using their Swiss documentation.
Gross income
The starting point is generally the relevant interest income before any foreign tax deduction.
Timing of receipt
The interest credit, due date and actual receipt must be assessed under German tax law.
Swiss bank documents
Account statements, annual reports and tax statements provide the underlying information.
German tax return
Foreign investment income is reported according to its classification under German tax law.
Reporting interest in the German tax return
This page explains the tax treatment of Swiss interest income. General guidance on reporting foreign investment income is available in our German investment taxation and tax compliance sections.
Swiss Withholding Tax
Swiss interest payments are not all subject to the same withholding treatment
Whether Swiss withholding tax is actually deducted depends on the particular investment, the debtor and the legal structure.
A particular Swiss tax deduction should therefore not be assumed solely because the bank is located in Switzerland. What matters is the nature of the income and what the bank or paying agent has shown on the statement.
| Situation | What to review | German tax implications |
|---|---|---|
| Swiss bank account | Check the interest credit and any Swiss tax actually withheld | Recognise the interest income under German law |
| Swiss bond | Review the coupon, issuer and withholding tax | Treat ongoing income and any disposal gain separately |
| Foreign bond in a Swiss securities account | Distinguish the income’s source country from the country where the account is held | A different tax treaty may be relevant |
| Profit-participating loan or special instrument | Review special treaty and withholding tax rules | Do not automatically apply the treatment of ordinary bank interest |
The account’s location and the income’s source country are different concepts
For example, holding a U.S. bond in a Swiss securities account does not by itself make the interest “Swiss interest income”. For withholding tax and treaty purposes, the country of the issuer or debtor may instead be decisive.
Germany–Switzerland Tax Treaty
Swiss withholding tax on ordinary interest can be reduced to 0% for German residents
Where the recipient is resident in Germany, the Germany–Switzerland tax treaty generally provides full relief from Swiss withholding tax on ordinary Swiss bond and bank interest.
If Swiss withholding tax has nevertheless been deducted, it is therefore necessary to determine how much can be reclaimed from Switzerland under the treaty. A reclaimable amount should not be treated as foreign tax definitively borne by the taxpayer without further examination.
Swiss tax deduction
Withholding tax may initially have been deducted from certain types of Swiss income.
Entitlement to relief
For ordinary bank and bond interest, the treaty generally provides relief to 0% where the recipient is resident in Germany.
Refund claim
Swiss tax withheld in excess of the treaty rate may need to be reclaimed from Switzerland.
Review special instruments separately
Profit-participating bonds, profit-participating loans and certain comparable instruments may produce different treaty outcomes. Full relief for ordinary bank interest must therefore not be assumed for every interest-bearing claim.
CHF → EUR
Swiss interest income must be calculated in EUR for German tax purposes
Swiss banks often report interest and tax deductions in CHF. The German income tax return, however, is prepared in EUR.
Interest income and any foreign tax amounts must therefore be converted into EUR in a verifiable manner. The conversion method should be documented and applied consistently to the relevant transactions.
Interest income
Income reported in CHF is calculated in EUR for the German tax return.
Tax withheld
Any Swiss tax must also be determined in EUR in a verifiable manner for German tax purposes.
Documentation
Keep the bank records, credit dates and exchange rates used so that the calculation can be checked.
Bonds
For bonds, reviewing the coupon alone is often insufficient
Swiss bonds can raise additional German tax questions beyond the regular interest payment.
In particular, the ongoing coupon, purchase and acquisition costs, sale, redemption, accrued interest and any foreign currency effects need to be distinguished.
Detailed guidance on Swiss bonds
For a fuller discussion of coupons, disposals, redemptions and special bond arrangements, see Swiss Bonds for German Residents .
Moving to Germany
What happens to a Swiss account after moving to Germany?
Moving to Germany does not, by itself, mean that a Swiss account must be closed for tax reasons. What matters is when German tax liability begins and which investment income is received after that date.
The timing of the move and your tax residence should be reviewed together with your existing Swiss assets. The following guides explain these issues in more detail.
Moving from Switzerland to Germany
The start of German tax liability, residence and existing Swiss assets.
Explore the guideWhen German tax liability begins
Assessing the relocation date and the start of unlimited German income tax liability.
Read the articleChecklist
Documents for Swiss interest income received by German residents
Account statements
Annual account statements, interest credits and payment dates.
Fixed-term deposit documents
Deposit amount, term, maturity date and agreed interest rate.
Bond documents
ISIN, issuer, coupon, purchase confirmations and sale confirmations.
Tax deductions
Statements showing Swiss withholding tax or other source taxes deducted.
Bank tax reports
Swiss tax statements, income summaries and annual reports.
Relocation details
If you moved to Germany: the date of the change of residence and the start of German tax liability.
Further Reading
Detailed guidance on bonds, securities accounts and tax reporting
This page covers account interest, fixed-term deposits, basic treaty questions and Swiss tax deductions. The following guides provide more detail on bonds, wider securities account issues and German reporting obligations.
Swiss Bonds
Coupons, disposals, redemptions, accrued interest and foreign currency.
Read the articleSwiss Securities Accounts
Shares, dividends, interest, funds and investment disposals.
Explore the guideInvestments & Withholding Taxes
An overview of cross-border investments between Germany and Switzerland.
Explore the topicTax Returns & Reporting Obligations
German reporting of foreign income, tax deductions and supporting documents.
View reporting guidanceGerman Tax Fundamentals
General German rules for foreign investment income and securities accounts
Our Germany section explains the general rules for foreign investment income, Anlage KAP, foreign securities accounts and the preparation of investment records for tax purposes.
This Germany–Switzerland guide focuses on the Swiss-specific questions: Swiss interest-bearing investments, withholding tax, the tax treaty, Swiss bank documents and CHF/EUR conversion.
General German investment taxation
For the general principles, see Anlage KAP and Foreign Securities Accounts .
Related Situations
More topics on Swiss investments
Swiss Securities Accounts for German Residents
An overview of Swiss bank balances and securities holdings.
Explore the guideSwiss Shares
Dividends, Swiss withholding tax and capital gains.
Explore the guideSwiss Funds & ETFs
German investment fund taxation for investments in Swiss funds.
Explore the guideMoving from Switzerland to Germany
The start of German tax liability with existing Swiss investments.
Explore the guideGermany–Switzerland Tax Advice
Do you live in Germany and receive interest from Switzerland?
We prepare income from Swiss accounts, fixed-term deposits and bonds for German tax purposes, review Swiss withholding tax, treaty relief and refund claims, convert CHF amounts into EUR with clear supporting calculations, and coordinate your German tax return.
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