DEMerck BKK Supplementary rate & contributions 2026
14.6% general rate + 3.97% supplementary rate · Employer and employee each pay half of the contribution.
Merck BKK is a Company fund (BKK) based in Darmstadt. At 3.97%, its supplementary rate is 0.6 percentage points above the average of all statutory funds (3.37%). Since the beginning of 2022 the fund has adjusted its supplementary rate 5 times, most recently on 07/01/2025 by +0.77 percentage points to 3.97%.
Supplementary rate of Merck BKK in recent years
| Valid from | Supplementary rate | Change |
|---|---|---|
| 07/01/2025 | 3.97 % | ▲ +0.77 % |
| 02/01/2025 | 3.2 % | ▲ +0.8 % |
| 10/01/2024 | 2.4 % | ▲ +1 % |
| 05/01/2024 | 1.4 % | ▲ +0.3 % |
| 07/01/2023 | 1.1 % | ▼ 0.3 % |
| 01/01/2022 | 1.4 % | – |
Data starts in January 2022 – the oldest rate may have applied earlier.
What switching funds can save
The cheapest statutory health insurance fund is currently BKK BPW Wiehl with a supplementary rate of 1.8% – 2.17 percentage points less than Merck BKK. The examples show the savings when switching:
| Gross salary / month | Savings / month | Savings / year |
|---|---|---|
| €2,500.00 | €27.13 | €325.56 |
| €3,500.00 | €37.98 | €455.76 |
| €4,500.00 | €48.83 | €585.96 |
| €6,000.00 | €63.07 | €756.84 |
Employee share – the employer saves the same amount on top. Above the contribution assessment ceiling (5,812.5 € gross/month) the savings do not grow any further; tax effects are not taken into account. Not every fund is open to every employee or in every federal state.
U1 & U2 levy rates
Relevant for employers: the levies for continued pay during sickness (U1, selectable reimbursement rates) and maternity (U2).
| Levy rate | Reimbursement | |
|---|---|---|
| U1 (sick pay) | 1.7 % | 70 % |
| U2 (maternity) | 0.38 % | 100 % |
Levy rates over time
| Valid from | U1 rates | U2 |
|---|---|---|
| 01/01/2026 | 1.7 % | 0.38 % |
| 01/01/2025 | 2.3 % | 0.42 % |
| 01/01/2024 | 2.7 % | 0.35 % |
| 01/01/2023 | 2.9 % | 0.41 % |
| 01/01/2022 | 2.2 % | 0.5 % |
Data starts in January 2022 – the oldest rate may have applied earlier.
Fund details
- Type
- Company fund (BKK)
- Company number
- 44377882
- Address
- Frankfurter Str. 129, 64293 Darmstadt
This data in your software
Supplementary rates of all funds, updated daily and with history – as a REST API for your application.
Calculate your net salary with Merck BKK
The calculator runs on the real Lohnica API – with the daily-updated supplementary rate of Merck BKK.
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Frequently asked questions
The supplementary rate of Merck BKK is currently 3.97% (valid since 07/01/2025). Together with the general contribution rate of 14.6%, the total contribution is 18.57%.