If you have public health insurance, you must pay for long-term care insurance (Pflegeversicherung). It pays for your healthcare when you are old.
Pflegeversicherung costs 2.6% to 4.2% of your income. If you have a job, your employer pays 1.8% and you pay the rest.
If you have private health insurance, Pflegeversicherung is included in your insurance policy. The cost is set by the company. It’s not a percentage of your income.