Costly legal errors are avoidable decisions that lead to significant financial damage — fines, damage claims, lost transactions. At Musch Legal, we see the same ten errors recurring among internationally operating SMEs: missing choice of law, clumsy sanctions approach, missed GDPR compliance, poor M&A structuring. A structured approach prevents the vast majority. Prevention costs on average 5-15 percent of what correction costs retrospectively.

What is the legal problem? (Which errors cost the most?)

Working internationally increases the risk of errors because different rules apply per country. Standard contracts without local scrutiny, missed sanctions screening, clumsy GDPR implementation, weak R&W in M&A — every error can cost millions. At the same time, most errors are avoidable with a structured approach. The question is not whether mistakes happen, but whether you have costly or avoidable mistakes.

What does the law say? (Which rules are underestimated?)

Rome I (Regulation 593/2008) and Brussels I-bis (Regulation 1215/2012) regarding choice of law and forum are often applied incorrectly. CISG applies automatically under Article 1 — but is often applied unconsciously. Article 33 of the GDPR (Regulation 2016/679) requires data breach notification within 72 hours. Sanctions under Regulation 833/2014 have immediate effect. CSDDD from 2027 with fines of up to 5 percent of turnover.

For M&A: Article 6:228 of the Dutch Civil Code (BW) regarding error and the Reason for Act (R&W) under Article 7:17 of the Dutch Civil Code (BW) are underestimated.

Top error

Consequence

Prevention

No choice of law

Procedure under foreign law

Rome I Art 3 in every contract

Vague choice of forum

Jurisdiction incident prior to the main proceedings

Exclusive choice of forum Art 25 Brussels I-bis

Missed sanctions screening

Criminal prosecution Sanctions Act 1977

Automated screening

GDPR non-compliance

Fine up to 4% turnover

DPA + SCCs + TIA

Weak M&A R&W

Hidden obligations

Caps + indemnities + escrow

No NNN for Chinese production

Trademark squatting

NNN agreement + Madrid Protocol

Awkward Incoterm

Unintended customs fees

FCA for containers, DAP for delivery

Top error

Consequence

Prevention

No choice of law

Procedure under foreign law

Rome I Art 3 in every contract

Vague choice of forum

Jurisdiction incident prior to the main proceedings

Exclusive choice of forum Art 25 Brussels I-bis

Missed sanctions screening

Criminal prosecution Sanctions Act 1977

Automated screening

GDPR non-compliance

Fine up to 4% turnover

DPA + SCCs + TIA

Weak M&A R&W

Hidden liabilities

Caps + indemnities + escrow

No NNN for Chinese production

Trademark squatting

NNN Agreement + Madrid Protocol

Inconvenient Incoterm

Unintended customs costs

FCA for containers, DAP for delivery

What risks do companies face? (What damage amounts do we see?)

GDPR fines exceeding 1 million euros multiple times. NIS2 fines up to 10 million euros or 2 percent of turnover. CSDDD up to 5 percent. Sanction violations punishable under the Economic Offences Act with imprisonment. M&A errors via R&W claims average 8-15 percent of transaction value. Unintended liability in exports without limitation: often millions. Reputational damage is typically permanent.

Practical example from our practice (Which error cost 8.2 million pounds?)

Musch Legal was consulted by a Dutch company that had acquired a British subsidiary without a detailed compliance indemnity. After closing, it emerged that the subsidiary had secured contracts through bribery for years. The UK Serious Fraud Office opened an investigation; the Dutch parent company was fined 8.2 million pounds. In subsequent M&A transactions, we built in strong compliance warranties, uncapped indemnities, and escrow of 15 percent of the purchase price for seven years. Avoidable error of £8.2 million.

What can you do? (How do you avoid top errors?)

Implement standard templates with v3 clauses: choice of law, choice of forum, sanctions, GDPR, CSDDD. Build automated sanctions screening (Refinitiv, Worldcheck). Conduct an annual legal audit. For M&A: standard DD package. For compliance: training program. Engage external legal counsel for strategic coordination. At Musch Legal, we work with a top-10 mistakes checklist for clients.

The five biggest legal risks for exporters

The five biggest legal risks for importers

Legal audits for internationally operating companies