Tax Advisor Negligence in Germany: Your Right to Compensation

A tax advisor’s liability arises primarily from the advisory contract entered into between the parties. Under German law, this contract is typically classified as a service contract for the management of another’s affairs within the meaning of Section 611 and Section 675 of the German Civil Code (Bürgerliches Gesetzbuch, BGB). The advisor owes their client thorough and diligent counsel — from the accurate preparation of tax returns and annual financial statements to proactively identifying tax risks and planning opportunities. Falling short of this standard constitutes a breach of duty. An unexpected tax demand or a notification from the German tax office (Finanzamt) pointing to an error in a filed return is often the first indication that something has gone wrong. Negligent advice is not something clients simply have to accept — it gives rise to a concrete liability claim.

Where an advisor breaches their professional duties through fault and the client suffers a loss as a result, this may give rise to a claim for damages under Sections 280 et seq. BGB. The standard of care expected of a German tax advisor is defined by the general professional obligations set out in Section 57 of the Tax Advisory Act (Steuerberatungsgesetz, StBerG), which requires advisors to practice their profession conscientiously and to act in their clients’ interests at all times. In certain circumstances, claims in tort under Section 823(2) BGB may also be available. In practice, establishing the causal link between the breach and the loss is often the most significant hurdle — which is why early legal involvement is so important.

Advisory errors can arise across a wide range of tax matters — from day-to-day compliance work through to complex restructurings. The following categories represent the situations most commonly giving rise to liability claims against tax advisors in Germany.

Among the most consequential errors in German tax practice are failures in the planning and execution of corporate reorganizations. Anyone structuring a business split (Betriebsaufspaltung) or carrying out a reorganization under the Reorganization Tax Act (Umwandlungssteuergesetz, UmwStG) is operating in legally demanding territory — and depends on sound professional advice at every stage.

If the financial or personal ties between the holding company and the operating company (Besitz- und Betriebsgesellschaft) are assessed incorrectly, or if hidden reserves are inadvertently triggered during a restructuring, the resulting tax liability can run to six or seven figures. Errors in the transfer of business assets, the assessment of lock-up periods (Sperrfristen), or the tax treatment of share transfers are equally critical. Any one of these mistakes can cause serious and often irreversible financial damage. Our lawyers analyze the erroneous structure, quantify the resulting loss, and pursue the claim against the advisor.

Not every liability case requires complex legal analysis. Missed deadlines are among the most common — and most damaging — errors a tax advisor can make. If a formal objection (Einspruch) against a tax assessment is not lodged in time, a deadline for proceedings before the German tax court (Finanzgericht) is missed, or an application for suspension of enforcement (Aussetzung der Vollziehung) is overlooked, the loss of rights is often permanent.

What makes these cases particularly clear-cut is that the breach of duty is objectively verifiable. Deadlines are documented, and their non-observance is difficult to dispute. In such circumstances, the advisor’s liability is almost inevitable. A client who has paid tax that could have been avoided had their advisor acted in time may well have an enforceable compensation claim.

Real estate investors in Germany rely on precise tax guidance — particularly when it comes to the timing of a sale, applicable holding periods, and the boundary between private sales and commercial real estate trading. Selling a property before the ten-year speculation period (Spekulationsfrist) has expired can result in a substantial tax liability. Equally dangerous is a failure to correctly assess the three-property rule (Drei-Objekt-Grenze): overlooking this threshold can lead to the reclassification of private property sales as commercial real estate trading, with dramatic tax consequences for the client.

A diligent tax advisor must raise these risks before the notarial appointment. Failure to do so — or doing so incorrectly — is a costly mistake for the client, and an enforceable liability claim.

Many people hesitate to take legal action against their tax advisor — out of loyalty to a long-standing professional relationship, or simply not wanting to cause personal harm to someone they know well.

This hesitation is understandable, but in practice it is rarely warranted. Tax advisors in Germany are legally required to maintain professional indemnity insurance. In a liability case, it is the insurer — not the advisor personally — who typically meets the claim. Pursuing compensation is therefore, in most cases, a straightforward business matter conducted between lawyers and an insurance company.

German law prescribes a minimum level of coverage, with the maximum annual benefit set at four times this amount. For complex matters — such as negligent advice in connection with corporate transactions or reorganizations — these limits can be reached quickly. Many advisors therefore carry higher levels of cover. Establishing what coverage applies in a given case is one of the first questions our lawyers address when taking on a matter. Our firm handles all correspondence with the professional indemnity insurer and works toward an efficient out-of-court settlement. We also examine whether unjustified fee claims by the advisor can be resisted or offset, and — where necessary — pursue formal objections and proceedings before the German tax courts to limit the damage at the earliest opportunity. Where an out-of-court resolution cannot be reached, we represent our clients in court.

Compensation claims against tax advisors in Germany are subject to the standard limitation rules under Sections 195 and 199 BGB. The limitation period is three years — but it does not begin to run until the client becomes aware of the advisor’s breach of duty. In practice, this means that claims may remain actionable for longer than is often assumed.

It is also worth noting that the former Section 68 StBerG previously provided a specific limitation rule, which was repealed in 2004. For claims that arose before December 15, 2004, this older provision may still be relevant. The precise calculation of the applicable limitation period is always a matter for the individual case and should be examined by a lawyer without delay — those who wait too long risk losing claims that would otherwise be valid.

In certain circumstances — particularly where limitation is already well advanced — the concept of secondary liability (Sekundärhaftung) may come into play. Where a German tax advisor failed to inform their client in good time of their own error and the approaching expiry of any recourse claim, they may themselves be liable for that failure. Our lawyers monitor all relevant deadlines, take immediate steps to interrupt the limitation period where necessary, and ensure that your claims are secured on a sound legal basis.