A couple of months after retiring in Korea, the health insurance bill arrives and people are startled: “My income stopped — why is this higher?” This article answers three questions — what the premium actually becomes, which deadlines cannot be undone, and what order to work through.
1. Voluntary continued enrolment costs exactly double what you paid while employed, because the employer half disappears. On a 4 million won salary: 162,696 won a month becomes 325,392.
2. The comparison that matters is against regional enrolment, not against your working years. If you own property, the regional premium can run higher — which is when continuation wins.
3. Three deadlines, none of them reversible. Continuation must be applied for within two months of the payment due date on your first regional bill (not from your retirement date), dependant status backdates only within 90 days, and missing one payment ends the enrolment for good.
Each of the three, worked through below.
What the premium becomes
Employee and regional enrolment charge entirely different things. Employee premiums apply a rate to salary, and the employer pays half. Regional premiums add property, converted into points, and the individual pays all of it. Which is why a retiree who owns a home is billed even with zero income.
| Aspect | Employee | Regional | Voluntary continuation |
|---|---|---|---|
| What is charged | Salary | Income + property points | Average salary over the final 12 months |
| Property counted | No | Yes | No |
| Cars counted | No | Abolished Feb 2024 | No |
| Employer share | Half | None | None |
| Duration | While employed | Ongoing | 36 months, no extension |
The rates that apply in 2026:
| Item | 2026 | Change |
|---|---|---|
| Health insurance rate | 7.19% | +1.48% |
| Long-term care rate | 0.9448% | +2.90% |
| Regional property point value | 211.5 won | +1.48% |
| Monthly floor (regional) | 20,160 won | — |
| Monthly ceiling (regional) | 4,591,740 won | — |
| National Health Insurance Service, 2026 rate notice. The long-term care rate is about 13.14% of the health rate and applies directly to income. | ||
Applying those rates to a final salary of 4 million won a month:
| Status | Health | Long-term care | Total |
|---|---|---|---|
| Employed (your half) | 143,800 won | 18,896 won | 162,696 won |
| Voluntary continuation (all yours) | 287,600 won | 37,792 won | 325,392 won |
| Our calculation (4m × 7.19% and × 0.9448%). Property is not counted under continuation. | |||
This is where a misreading creeps in. Whether continuation is worth it is judged against regional enrolment, not against your working years. It always costs more than employment did — but for anyone holding property, the regional bill frequently runs higher than this.
The February 2024 overhaul of regional premiums matters here too. The Korean Association of Certified Public Tax Accountants' newspaper (March 2025) reported: the basic property deduction rose from 50 million to 100 million won, premiums charged on cars were abolished outright, and the 97-grade point system for regional income premiums was replaced with a flat rate like the employee system. Any guide written before 2023 will overstate the figure.
What a 2 million won pension costs
One provision weighs heavily on retirees and is barely known. Article 44(2) of the enforcement rules sets different inclusion rates by income type.
| Income | Counted at |
|---|---|
| Employment income (item 4) and pension income (item 5) | 50% |
| Interest (1), dividends (2), business (3), other (6) | Full amount |
| It is not “income counts at half.” Only employment and pension are halved; rental, business, interest and dividends count in full — which catches retirees with rental income hardest. | |
For a regional enrollee living on a pension alone:
| Monthly pension | Monthly income counted | Monthly premium (health + care) |
|---|---|---|
| 1,000,000 won | 500,000 won | 40,674 won |
| 1,500,000 won | 750,000 won | 61,011 won |
| 2,000,000 won | 1,000,000 won | 81,348 won |
| 2,500,000 won | 1,250,000 won | 101,685 won |
| 3,000,000 won | 1,500,000 won | 122,022 won |
| Our calculation, excluding property; a real bill adds property points × 211.5 won. The full monthly figure, property included, comes out of the regional premium calculator, which carries the 60-grade table of Annex 4. Working from the full pension instead of half gives exactly double these figures. | ||
There is a trap in the wording. A proviso in Article 41(1)5 of the enforcement decree states that for public pension income, the pension income deduction under the Income Tax Act is not applied and “the entire pension income arising in the tax period” is treated as pension income. The deduction that reduces your taxable pension does not reduce it for premium purposes, and the 50% applies to that full amount. The pension figure on your tax return and the one used for premiums can differ.
Financial income at 10 million — one won over costs 814,000 a year
Article 44(1) of the same rules carries a proviso: where interest and dividend income is 10 million won or less, that income is not aggregated at all.
That sentence is a cliff. Up to 10 million it drops out entirely; one won over and the whole amount enters — not just the excess.
| Annual interest + dividends | Counted | Added premium per year |
|---|---|---|
| 10,000,000 won | Excluded | 0 |
| 10,010,000 won | All of it | About 814,000 won |
| 11,000,000 won | All of it | About 895,000 won |
| Our calculation (annual ÷ 12 × 7.19% + × 0.9448%, × 12). Do not confuse this with the 20-million-won comprehensive taxation threshold — for premiums the number is 10 million. | ||
Staggering deposit maturities or timing dividend receipts is a decision that earns its keep right here. Ten thousand won of difference decides 814,000 won a year.
Three deadlines that cannot be undone
One — continuation: two months from the first bill's due date
The most commonly missed deadline, because the clock does not start at retirement. The Service's own wording:
| Item | As written |
|---|---|
| Application window | “Before two months pass from the payment due date on the regional premium bill received” |
| Eligibility | “Held employee enrolment for a combined one year or more within the 18 months before leaving” (sole proprietors excluded) |
| Premium basis | “The average of the final 12 months of assessed monthly salary” |
| Coverage | “36 months from the day after leaving” |
A late bill buys you time; a bill that never arrives means the deadline passes without you knowing it existed. Which is why calling the Service straight after leaving beats waiting for paper.
Two — dependant registration: 90 days
If a spouse or child is an employee enrollee, becoming their dependant costs nothing at all. But when you file decides whether it backdates. Article 2(2) of the enforcement rules:
2. Filed within 90 days of the employee's enrolment date: effective from the employee's enrolment date (backdated)
3. Filed after 90 days: effective from the date the form reaches the Service
If a child starts work and you join their coverage, filing within 90 days backdates to their start date and the regional premiums in between are settled. Past that, it runs from the filing date and you pay those months in full. There is an exception for causes outside your control — natural disaster, illness, accident.
Three — the payment due date: miss one and it ends
Miss a payment under continuation and you revert immediately to regional enrolment, and once out you cannot reapply. Which is what makes a direct debit the safe setup.
Premiums lag by up to two years
Another provision that weighs heavily and is barely known — Article 41(3) of the enforcement decree.
1. For monthly income assessed January through October: data from two years before the charging year. However, pension income data under item 5 uses the previous year.
2. For monthly income assessed in November and December: previous year data.
| What it means | What you experience |
|---|---|
| January to October uses data from two years back | Income stops at retirement but you can pay premiums based on your working salary for nearly two years |
| Every November the data shifts forward a year | A premium that changes abruptly in November is normal |
| Pension income alone uses the previous year | For retirees, pensions register quickly and everything else lags |
| This is also the practical reason to look at continuation first — the regional premium is often still being calculated from old income. | |
The order to work through
| Step | What to do | Why |
|---|---|---|
| 1 | Check dependant eligibility first | It costs nothing. It comes ahead of continuation |
| 2 | If not eligible, apply for continuation — call the Service after leaving rather than waiting for a bill | The window runs from the first bill's due date, so you may not notice it at all |
| 3 | Get both figures and compare — the continuation premium and the regional premium | With property, the regional figure often runs higher, and that is when continuation wins |
| 4 | Set up a direct debit | Missing a due date ends the enrolment and you cannot reapply |
| 5 | Put the 36-month end date in your calendar | There is no extension. Recheck dependant status or re-employment then |
One property provision is easy to miss. The plain-language legal service states that where someone “takes out a loan from a financial institution to buy or rent a home for actual residence and notifies the Service of that fact,” the loan amount is excluded from the property point calculation. It is not automatic — you have to notify them. Worth checking if you borrowed to buy or rent.
Pension income counting at half still means larger payments affect both the regional premium and dependant eligibility, so when and how much you claim belongs in the same conversation. Taking severance as a pension is covered in DB, DC and IRP; the gap between retirement and pension start in bridging the income gap. Actual monthly needs are in retirement living costs, tax-credit accounts in pension savings and IRP, and preparation by age in retirement prep by age.
Questions people ask
I was told it was “two months after leaving”
The most common misreading. The Service's wording is “before two months pass from the payment due date on the regional premium bill received.” The clock starts at the first bill's due date, not at retirement.
How much does it actually save?
The more property you hold, the bigger the gap, because continuation ignores property and cars and works only from your final 12 months of salary. The fastest accurate comparison is getting both figures from the Service (1577-1000).
If pension counts at half, does that help dependant status?
Not necessarily. The 50% rule belongs to Article 44 (monthly income assessment), while dependant status runs through Article 2 plus Tables 1 and 1-2 — a separate track entirely. Near the boundary, ask the Service directly.
Is dependant status just about income and property?
No. Article 2(1) requires both — the support requirement in Table 1 and the income and property requirement in Table 1-2. The widely quoted “20 million won income, 540 million won property” is only the second, and clearing the money test does not clear the support test. The money side can be checked against Annex 1-2 in the dependant income and property checker — pensions count in full, and interest has a 10m won cliff.
What if I get another job during continuation?
You switch to employee enrolment, and if you leave again you can resume the remaining period. There is no penalty for the status changing.
What happens after 36 months?
You move to regional enrolment. There is no extension. Recheck dependant eligibility at that point.
What we read into it
The heading of the enforcement decree article no longer reads “point value for premium assessment” but “point value for property premium assessment.” The point system now survives only for property — cars and income grades are gone. A single article heading carries the result of the overhaul.
The other thing that trips up retirement planning is that inclusion rates differ by income type. Employment and pension are halved, but rental, business, interest and dividends count in full — and interest and dividends carry a cliff at 10 million won on top. The intuition that “more income means proportionally more premium” breaks here.
Both points are ours from reading the provisions; no guide sets them out this way.
Sources
- National Health Insurance Service (tier 1, public institution) — 2026 premium rate notice (checked August 2026). Source for the 7.19% health rate (+1.48%), 0.9448% long-term care rate (+2.90%) and 211.5 won regional property point value (+1.48%). This notice established that these rates apply to 2026.
- National Health Insurance Service (tier 1, public institution) — Voluntary continued enrolment (checked August 2026). Source for the two-month window from the bill's due date, the one-year-within-18-months eligibility (sole proprietors excluded), the final-12-months salary average, and the 36 months from the day after leaving.
- Korea Ministry of Government Legislation, national law information centre (tier 1, government agency) — National Health Insurance Act enforcement decree, Article 41. Source for the data-lag rules in paragraph 3 and the proviso in paragraph 1 item 5 on public pension income being counted in full.
- Korea Ministry of Government Legislation (tier 1, government agency) — Enforcement rules, Article 44. Source for the proviso excluding financial income of 10 million won or less, and for the “full amount” and “50%” classifications.
- Korea Ministry of Government Legislation (tier 1, government agency) — Enforcement rules, Article 2. Source for dependant status requiring both Table 1 and Table 1-2, and for the 90-day backdating rule. The tables themselves do not appear on the article-level page and were not read.
- Korea Ministry of Government Legislation, plain-language legal information (tier 1, government agency) — National health insurance, regional enrollees (checked August 2026). Source for the household assessment formula, the 4,591,740 won ceiling and 20,160 won floor, and the housing loan exclusion conditional on notifying the Service.
- Korean Association of Certified Public Tax Accountants newspaper (tier 2, association publication) — Regional premiums at a five-year low (24 March 2025) for the property deduction rising to 100 million won, the abolition of car premiums and the move to a flat income rate; and Priorities in premium reform (24 July 2025) for the dependant thresholds of 20 million won income and 540 million won assessed property.
- Our own calculation. The 162,696 and 325,392 won figures on a 4-million-won salary, the 40,674 to 122,022 won range for pensions of 1 to 3 million a month, and the roughly 814,000 won annual gap between 10 million and 10.01 million won of financial income all use the 2026 rates (7.19% + 0.9448%) and exclude property.
Where to check further
- Your own two figures — the Service runs two separate estimators: one for the continuation premium and one for the regional premium. Run both and set the results side by side. If your property and income mix is complicated, or the two land close together, get the binding figures from the National Health Insurance Service (1577-1000). The conditions and deadlines for the scheme itself are on the continuation enrolment page.
- The dependant tables — Tables 1 and 1-2 do not appear alongside the article text; they sit under the law centre's separate tables-and-forms tab. When you come to apply, the Service's dependant status form shows what actually has to be declared, and cases involving business income need confirmation from the Service.
- The housing loan exclusion — the qualifying conditions and valuation rules are in Article 42(2) and (3) of the enforcement decree. Because it applies only on notification, ask the Service about the procedure. The wider question of keeping employee status after leaving work is set out in the plain-language legal guide.
Written as of August 2026. Rates and the point value come from the Service's 2026 notice, the continuation deadlines and basis from the Service's own guidance, and the inclusion rates and 90-day rule from the legislation; the monthly figures are marked as our calculations. Actual premiums and eligibility vary with individual property and income, so confirm with the National Health Insurance Service (1577-1000). This article is not tax or financial advice.
