Cross-Border Tax Adjustments

Cross-border adjustments are bilateral correction coordination in its most direct form: the adjustment in one state creates an entitlement in the other, and that entitlement must be actively claimed and enforced — it does not arise automatically.

The core issue

When Germany makes a profit adjustment after a tax audit — whether on transfer pricing, hidden profit distributions or estimated income — Switzerland does not automatically reduce its tax base by the same amount. The corresponding correction must be formally claimed and substantiated on the Swiss side.

Typical situations

Upward adjustment in Germany, no Swiss relief

A German tax audit increases the taxable profit of a German entity based on its intercompany transactions with a Swiss group member. Without a corresponding downward adjustment in Switzerland, the same economic income is taxed in both countries — a clear case of double taxation that the DTA is meant to prevent.

Swiss correction pending

Where the primary adjustment has already been made in Germany and the taxpayer is waiting for Swiss relief, time limits and procedural requirements apply. Delay or inaction can forfeit the right to a corresponding correction entirely.

Recharacterisation of group transactions

Swiss cantonal tax authorities may recharacterise transactions between group entities — for instance treating a loan to a group company as simulated and reclassifying it as a hidden capital contribution. The resulting Swiss-side correction must be addressed in Germany without any automatic corresponding adjustment.

Estimated assessments with cross-border effects

Estimated assessments — often based on inferred profit allocations or assumed arm's length prices — regularly affect the Swiss tax position too. Without coordination, the estimate creates a double-tax burden that compounds over time.

A correction in one state creates an entitlement in the other — that must be actively enforced.

Primary focus: Germany–Switzerland. The same coordination applies where the triggering adjustment originates in Austria, France, Italy, the Netherlands or Poland — any jurisdiction whose tax authority challenges a profit allocation to Switzerland.

How we work

Assess the situation

We review the audit report and assess whether a corresponding correction in the other state is available and in what form. The analysis covers the Germany–Switzerland DTA, OECD guidelines and the domestic law of both states.

Challenge the primary adjustment

We help resist the original correction by German or Swiss tax authorities — whether by objection, appeal, court proceedings or mutual agreement procedure.

Enforce secondary and corresponding corrections

We formally claim the corresponding corrections from the competent tax authorities and manage these proceedings for Germany and Switzerland synchronously on both sides.

Contact

Facing an adjustment or waiting for corresponding relief? We assess the situation and manage the correction process across both states.

Zurich office

International qualification and tax adjustments. Transfer pricing, corresponding corrections, Germany–Switzerland coordination and mutual agreement procedures.

+41 44 585 11 85

Hamburg office

German proceedings support. Tax audits, objections and tax court litigation, procedural and enforcement topics.

+49 40 49 20 93 43

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