The Enforcement Lottery: One Inspection Every 1,645 Years for Swiss Households

1. The National Equation: 304 out of 500,000

In 2023, cantonal enforcement bodies conducted a total of 13,644 workplace inspections — of which only 304targeted “private household services.” That is 2.2% of all inspections — for a sector estimated to account for 30–60% of all undeclared employment relationships in Switzerland.

For comparison: across all sectors, the inspection rate stands at 1.94% (13,644 inspections across 703,957 registered workplaces) — one inspection every 52 years. The household sector is thus inspected at 32 times lower intensity than the national average.

2. Canton Ranking: Who Inspects — and Who Doesn’t

Inspection density varies massively between cantons. Basel-Stadt leads with 758 inspections per 10,000 workplaces, while Zug stands at just 42 — an 18-fold difference.

At the household level, the disparities are even more dramatic. In Bern, an employer would statistically wait 4,392 years for an inspection. In Zug, 6,900 years. Even in the most heavily inspected cantons — Basel-Stadt and Ticino — the wait time stands at 417 and 548 years respectively.

3. The Economic Incentive: CHF 0.15 vs. CHF 1,265

The central question: does legal registration make financial sense? The data deliver an unequivocal answer.

To close the deterrence gap through inspections alone, enforcement intensity in the household sector would need to increase by a factor of 8,400. Alternatively, the inspection probability would have to rise from 0.06% to at least 54% — even when applying the maximum fine of CHF 5,000.

4. Collapse of Household Inspections: −56% Since 2021

Enforcement activity in the household sector is not merely low — it is actively shrinking, while other sectors are growing.

Coordination referrals for the household sector also fell by 50%: from 248 (2019) to 124 (2023). The authorities are not only inspecting less — they are also referring fewer household cases to specialist agencies.

5. The Romandie Divide: 5.3x Higher Fines

The data reveal a striking cultural divide in enforcement. Romandie cantons collect 5.3 times more revenue per inspection than their German-speaking counterparts.

Particularly striking: Zurich, the largest canton, conducted 1,571 workplace inspections but collected only CHF 19,375 — that is CHF 12.33 per inspection. In Valais, a single inspection yields CHF 323.51 — 26 times more.

6. The Rational-Actor Calculation

At what inspection probability does legal registration become the economically rational choice? The answer: at no realistic level.

At average fines, you would need 11 inspections per year per household — mathematically impossible with 83 inspectors for 500,000 households. Even with the BGSA maximum fine of CHF 5,000, an inspection rate of 54% would be required — a 900-fold increaseover today’s level.

In 2023, only 65 Art. 13 BGSA sanctions were imposed nationwide — against 500,000 households. The probability of a formal sanction: 0.013%. Expected cost: CHF 0.65 per year. Still 1,700 times less than the cost of compliance.