International Tax Expertise

Cross-Border Tax

Two jurisdictions. One coordinated tax strategy. Start with the country pair that matches your situation and explore residency, tax returns, investments, businesses, pensions, real estate, estate planning and reporting across both systems.

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U.S. & Germany

United States & Germany

Coordinated U.S.–German tax guidance for Americans in Germany, Germans in the United States, founders, investors and families with filing or planning issues in both countries.

Moving & Residency Dual Tax Returns LLCs & Companies Investments Pensions Estate & Gifts
Explore U.S.–Germany Tax
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U.S. & Switzerland

United States & Switzerland

Coordinated U.S.–Swiss tax guidance for U.S. citizens and residents in Switzerland, Swiss residents with U.S. investments or businesses, and families exposed to both tax systems.

Residency FBAR & FATCA Investments Pillar 2 & 3a Businesses Estate & Gifts
Explore U.S.–Switzerland Tax

Not sure which route applies? We can identify the relevant jurisdictions and filing obligations before you start.

Discuss your cross-border case

Your Global Tax Guide

Explore the four topic blocks below — Business Tax, Bookkeeping & Accounting, Individual Income Tax, and Inheritance, Wealth &amp Property Tax . Click the country flag inside any block to open the country-specific page for that topic.

Business Tax

Business taxation typically spans corporate income tax, local trade tax, indirect taxes on turnover, and levies on property transactions, with accounting rules shaping measurement and timing. Corporate income tax applies to net profits after allowable deductions, with loss carryforwards and group rules determining consolidation and relief. Trade tax, where applicable, is a municipal levy on business income that uses tax-specific add-backs and may be non-creditable for corporations but sometimes creditable for individual partners. Turnover taxes split into sales tax (single-stage, charged at retail) and value added tax (multi-stage, invoice-credit method), both requiring registration, compliant invoicing, and periodic returns. Property transaction taxes arise on acquisitions or transfers of real estate or certain business assets, sometimes triggered by share deals that shift effective ownership. Accounting (IFRS or local GAAP) underpins all of this—recognizing revenue and expenses on an accrual basis, driving book-tax differences, deferred taxes, and statutory obligations such as financial statements, audit, and record retention.

Click the flag to see tax details for the selected country:

US Business Tax Guide US Business Tax Guide Swiss Business Tax Guide Swiss Business Tax Guide German Business Tax Guide German Business Tax Guide

Bookkeeping and Accounting

Bookkeeping and accounting are the foundation for compliant taxation and sound business decisions. We set up and maintain your accounts in line with local requirements, perform timely monthly closings, and prepare management reports and annual financial statements. Our support covers the full process—from document capture and account reconciliations to payroll and sales tax/VAT filings—so your figures remain transparent and audit-ready. Depending on your legal form and size, we can implement cloud solutions or work with your existing systems and help establish effective internal controls. We have compiled the key points in a short guide.

Click the flag to see tax details for the selected country:

U.S. Bookkeeping and Accounting Guide U.S. Bookkeeping and Accounting Guide Swiss Bookkeeping and Accounting Guide Swiss Bookkeeping and Accounting Guide German Bookkeeping and Accounting Guide German Bookkeeping and Accounting Guide

Income Tax for Individuals

Individual income tax generally applies to residents on worldwide income and to nonresidents on domestic-source income, typically using progressive rate bands. Taxable income aggregates employment wages, self-employment profits, investment returns (interest, dividends), capital gains, and rental income, reduced by allowances, deductions, and credits such as social security contributions, retirement savings, insurance premiums, and work-related expenses. Many systems use withholding or pay-as-you-earn for wages and require advance payments by the self-employed, with an annual return to reconcile liabilities, claim credits, and carry forward eligible losses. Preferential rates or exemptions may apply to long-term capital gains or dividends, and cross-border cases are handled through residency rules, tie-breakers, and foreign tax credits. Families may benefit from joint filing, dependent credits, or income splitting, often subject to caps and phase-outs. Compliance involves registration, proper record-keeping, and filing by statutory deadlines, with interest and penalties for late, underpaid, or inaccurate returns.

Click the flag to see tax details for the selected country:

US Income Tax Guide US Income Tax Guide Swiss Income Tax Guide Swiss Income Tax Guide German Income Tax Guide German Income Tax Guide

Inheritance, Wealth and Property Tax

Estate tax is a levy on the decedent’s taxable estate at death—computed on the gross estate minus allowable deductions (e.g., debts, funeral, charitable, marital)—and applied before assets pass to heirs. Inheritance (and gift) tax, by contrast, taxes the recipients (or lifetime donors) on transfers without consideration, typically using fair market value minus allowances, with rates that often vary by relationship and amount. Many systems coordinate estate or inheritance tax with a gift tax to capture lifetime transfers and prevent avoidance around the time of death. Wealth tax is an annual charge on a person’s or entity’s net assets—assets minus liabilities—above a defined threshold. Property tax is a recurring local tax on the ownership of land and buildings, based on the assessed value multiplied by a local rate. Broadly, estate/inheritance (and gift) taxes are event-based transfer taxes, whereas wealth and property taxes are periodic; specific exemptions, valuation rules, and reliefs are jurisdiction-dependent and materially affect outcomes.

Click the flag to see tax details for the selected country:

U.S. Inheritance, Wealth and Property Tax Guide U.S. Inheritance, Wealth and Property Tax Guide Swiss Inheritance, Wealth and Property Tax Guide Swiss Inheritance, Wealth and Property Tax Guide German Inheritance, Wealth and Property Tax Guide German Inheritance, Wealth and Property Tax Guide