Cross-border tax preparation, organized

One system for every return, every deadline, every client.

TaxprepGeOS is the operational backbone for a tax preparation practice that spans two countries, two tax codes, and hundreds of clients who need both handled right.

100K+
Frontaliers in Geneva
2
Tax jurisdictions
12mo
Year-round compliance

Built for a practice that runs on precision

Every feature designed for the reality of managing cross-border tax clients from the French side.

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Client intake portal

Clients upload documents digitally. Fiches de salaire, certificats, 2042 forms, all organized automatically before you touch them.

Dual-deadline tracking

Swiss returns peak January to March. French returns April to June. Never miss a deadline across either jurisdiction again.

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Revenue dashboard

Track returns completed, revenue per client, seasonal capacity, and year-over-year growth in one clean view.

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Automated client updates

Clients get status updates on their returns without you sending a single email manually. Progress, completion, review, filed.

The cross-border tax problem is structural

Frontaliers face two tax systems that don't talk to each other. Swiss withholding tax, French income declarations, LAMAL vs CMU choices, wealth tax on foreign assets.

Most tax firms sit on one side of the border and guess about the other. TaxprepGe sits in Annemasse, right where the clients live, with deep expertise in both.

Swiss withholding tax
Source deductions on Geneva employment income
French income declaration
2042, 2047, and annexes for cross-border income
Convention franco-suisse
Treaty provisions to avoid double taxation
Social security (LAMAL/CMU)
Health insurance regime election and implications
Wealth tax (IFI)
French real estate wealth tax on global property

Tax prep that works as hard as the people crossing the border every morning.

Built in Annemasse. For the professionals who navigate two countries, two systems, one life.