After a family member dies following cancer treatment, an unexpected bill often arrives within a few months. Your income has not changed — you may not be working at all — yet your national health insurance premium as a self-employed (regional) subscriber suddenly doubles or triples. When you call, you are told that "another property has been counted." It feels like an administrative error, but it is usually the system running on its default settings while the estate is still unsettled.
In Korea, premiums for regional subscribers are calculated from property as well as income, and the insurer relies on local property-tax records. When real estate is still registered in the deceased person's name because no inheritance registration has been filed, tax law designates a single "principal heir" as the taxpayer — the person with the largest share, or the eldest when shares are equal. On paper the entire house is attributed to that one person. If that heir happens to be a regional subscriber, the increase shows up on their bill alone, while siblings enrolled through an employer may see no change at all despite inheriting the same property. That is usually the answer to "why only me?"
The first step is paperwork, not argument. Ask your insurance office for the calculation basis showing exactly which property and which share were counted. Pull the property register to confirm whose name it still carries. If registration has not been filed, report the heirs' shares to the local tax office, or complete the inheritance registration once the family agrees on division — this is the most reliable way to stop one person from carrying the whole property. Then submit those documents to the insurer and ask for the assessment to be corrected, including whether amounts already paid can be adjusted or refunded.
A few related points matter. Property premiums are based on assessed value, so a mortgage covering most of the home's worth is not automatically deducted, although deduction thresholds and rules for rental deposits exist and change from year to year. If you recently left a job, time-limited options such as continued enrollment under your former employer's plan may apply, and losing income can be grounds to request an adjustment. Which of these fits you depends on the case, so confirm directly with the insurer.
What to do with the house itself is a separate matter. Jointly owned property generally requires the agreement of all co-owners to sell, and when siblings disagree the division is settled through legal procedures. A tenant's lease reaching its term does not automatically mean the property becomes vacant, because tenants hold renewal rights. These questions belong to legal and tax advisers, not to medical information; free legal aid services and tax counselling desks can review the documents with you.
Finally, about your own health. The months after a death place grief and paperwork on top of each other, and disputes over money and titles are common among siblings — they tend to prolong grief rather than push it aside. If sleep has been broken for more than two weeks, if you are eating less and losing weight, or if most of your day passes between anger and self-blame, that is a condition worth attention rather than a character flaw. Community mental health centres, bereavement support offered by hospice and palliative care services, and counselling at a local clinic are all reasonable places to start.
This article is general information and does not replace individual medical or legal advice. Please discuss any health-related decisions with your own clinician, and confirm insurance assessments and inheritance procedures with the national health insurance service and qualified professionals.