When you're shopping for private health insurance (PKV) in Germany or evaluating health insurance plans in the US, you're rightly concerned about value. A key metric that often surfaces is the acquisition cost ratio (Abschlusskostenquote). On the surface, a low ratio seems like an unambiguous win for you, the customer. It suggests an insurer is efficient, perhaps spending less on commissions and marketing, which could theoretically benefit premium stability. But is the story really that simple? A deep dive into the 2020 data for German PKV reveals a more nuanced picture, where some insurers with the best (lowest) cost ratios might be facing significant business challenges.
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You could call the acquisition cost ratio a polemical metric. High ratios often trigger suspicion of excessive commissions, fueling the narrative that brokers might be incentivized to recommend unsuitable, expensive products. However, in the German PKV market, the plot thickens. A legal cap on acquisition commissions exists—since 2017, they cannot exceed 3% of the gross premium sum for new full-coverage contracts (§50 VAG). So, if high costs aren't solely due to high commissions, what explains them?
The answer may lie in the fierce competition for existing customers. As industry expert Matthias Beenken points out, growth in the PKV market for years has largely come from poaching competitors' policyholders—a practice known as policy churning or Umdeckung. This aggressive pursuit of new business, often through brokers, incurs significant costs for advertising, underwriting, and yes, commissions, even within the capped limit.
Here's where the 2020 data becomes fascinating and cautionary. A clear pattern emerged:
- Some "Winners" in Low Cost Ratios Were "Losers" in Customer Growth: Notably, four of the top seven insurers with the most favorable (low) acquisition cost ratios in 2020 were simultaneously among the companies that lost the most existing customers. Their low ratio might reflect less spending on new customer acquisition simply because they weren't actively gaining many.
- Some "Losers" in High Cost Ratios Were "Winners" in Customer Growth: Conversely, several insurers with higher (less favorable) cost ratios were among the handful of companies that gained a significant number of customers in 2020. Their higher costs likely reflect the substantial investment required to attract new business in a stagnant market.
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This creates a paradox you must understand: An insurer with a stellar, low acquisition cost ratio might be efficient, or it might be stagnant and losing relevance. An insurer with a higher ratio might be spending aggressively to grow, potentially offering competitive new products or broker incentives.
To make a truly informed decision, you cannot rely on a single metric. Evaluating an insurer's health and customer value requires a multi-faceted approach. Consider this comparative framework, which applies whether you're looking at German PKV or US private insurers and Medicare Advantage providers:
| Metric to Consider | What It Tells You | Question to Ask |
|---|---|---|
| Acquisition Cost Ratio | Efficiency in gaining new business. A very low ratio *could* indicate lower pressure on future premiums from these costs. | Is the low ratio from true efficiency or from a lack of growth/new business investment? |
| Net Customer Growth / Loss | Market popularity and retention success. Are more people joining than leaving? | Is the insurer growing organically or shrinking? A shrinking insurer may face long-term sustainability challenges. |
| Customer Satisfaction & Complaint Ratios | Quality of service and claims handling. Critical for long-term peace of mind. | How do existing customers rate their experience? Are there many regulatory complaints? |
| Premium Stability History | Predictability of your future costs. Has the insurer frequently raised rates? | Does the insurer have a history of moderate, predictable premium adjustments? |
| Financial Strength Ratings (e.g., Assekurata, AM Best) | Long-term solvency and ability to pay future claims. The bedrock of security. | Is the insurer on solid financial ground to honor promises decades from now? |
The contradictory signals in the 2020 data underscore a vital lesson: judging an insurance company—be it a German PKV provider, a US Medicare Advantage carrier, or a private health insurer—requires looking at the full picture. Reports like the MAP-Report (from which this data is sourced) provide this essential multi-dimensional analysis. Before you choose a plan based on a single attractive number, dig deeper. The most efficient insurer on paper might not be the one best positioned to serve you reliably for the next 20 years.