national Insurance contribution rates start to rise in 2026. starting at 9.5% this year and rising to 13% in 2033, here's how much my contributions will rise and how my income replacement rate will change.
your complete guide to the National Insurance contribution rate increase in 2026
summary
from 2026, National Insurance contributions will rise to 9.5%. it's the first increase since 1998 and will rise by 0.5 percentage points each year for the next eight years, reaching 13% in 2033. in return, the income replacement rate will also increase to 43%, providing greater income security in retirement.
table of contents
- background on the National Insurance premium rate increase
- national Insurance contribution rate of 9.5% in 2026
- changes to contributions for workplace and local members
- reforms to the National Pension 43% income replacement rate
- what the Guaranteed National Pension Payment Clause Means
- frequently Asked Questions
background on the National Insurance contribution rate increase
starting this year, the National Pension contribution rate is finally going up. In fact, it's the first contribution rate adjustment in 27 years, since 1998. You've probably heard a lot about the difficulties in financing pensions due to the declining birthrate and aging population.
the key to this National Insurance reform is that it's not just about raising contributions. the National Pension Act has been revised to increase the sustainability of the system while strengthening retirement security.
national Pension contribution rate of 9.5% in 2026
until 2025, the National Pension Insurance contribution rate was 9.0%. starting this year, 2026, it will increase by 0.5 percentage points to 9.5%. In other words, you will pay 9.5% of your monthly income as National Insurance contributions.
the rate will increase by 0.5 percentage points each year for the next eight years. the 13% increase in National Insurance will be complete in 2033. Here's how the contribution rate changes by year
national Insurance contribution rate by year
2025 9.0% 2026 9.5% 2027 10.0% 2028 10.5% 2029 11.0% 2030 11.5% 2031 12.0% 2032 12.5% 2033 13.0%
changes in contributions for workplace and local members
let's assume that the average monthly income is KRW 309,000.
employer and employee contributions are split 50/50. if the premium rate increases by 0.5 percentage points, your contribution will increase by 0.25 percentage points. Based on an average monthly income of 309,000 won, you will pay about 7,700 won more per month.
the increase is even greater for local enrollees, as they pay the full cost of their national pension. Based on the same income, local enrollees will have to pay an additional KRW 15,400 per month.
calculating your National Pension contribution is simple. just multiply your monthly income by the premium rate for the year. for example, a monthly income of 3 million won and a premium rate of 9.5% would result in 285,000 won per month, and a worker would pay half of that, or 142,500 won.
national Pension Reform: 43% Income Replacement Rate
one of the reasons for the increase in the national pension is linked to the increase in the income replacement rate. the more you pay in, the more you get out.
what does the 43% replacement rate mean? the Earnings Replacement Ratio is the ratio of the pension you receive to your average monthly earnings during your lifetime. it has increased by 1.5 percentage points from 41.5% to 43%.
based on a 40-year membership, this translates to an increase of about $90,000 per month. if you've been working your entire life, this is a significant increase in your retirement income.
there is one caveat. the income replacement rate increase only applies to future years of premium payments. it won't affect the amount of your pension if you're already receiving it.
what it means for the National Pension Guarantee
one of the most notable parts of the National Pension reform is the clarification of the national pension payment guarantee.
the revised National Pension Act states that the state must ensure the stable and continuous payment of pension benefits. In other words, the state has made a legal commitment to pay pensions.
previously, there was a fear that if the National Pension Fund was depleted, you would not be able to receive your pension, but now you can rest assured that the state will guarantee payment.
frequently asked questions
Q When will the increase in National Insurance contribution rates take effect?
A It will take effect from January 2026. this year's rate is 9.5% and will increase by 0.5 percentage points each year going forward, reaching 13% in 2033.
Q Is the increase different for workplace and local members?
A Yes, they are. employers pay 50/50 with the company, so the out-of-pocket increase is 0.25 percentage points. local subscribers pay the full 0.5%P because they pay out of pocket. based on a monthly income of 309,000 won, a workplace subscriber will pay an additional 7,700 won per month and a local subscriber will pay 15,400 won per month.
Q Who will the 43% income replacement rate apply to?
A It will apply to members who pay premiums from now on. those who are already receiving a pension will continue to receive the existing income replacement rate and will not benefit from this increase.
Q Will I lose my pension if the National Pension Fund is depleted?
A The amendments to the National Pension Act clarify the state's obligation to guarantee pension payments. the state is legally responsible for paying pensions regardless of the fund's condition.
Q What percentage will the national pension contribution rate eventually increase to?
A It will increase to 13% in 2033. it will be phased in over eight years, starting at 9.5% in 2026.
conclusion
national Insurance contribution rate increases have begun in 2026. it will start at 9.5% this year and rise to 13% in 2033, but the income replacement rate will also increase to 43%, giving you more security in retirement. as the state's obligation to guarantee payment is stipulated by law, there is less anxiety about receiving a pension.
if you have any questions about the National Pension Insurance premium rate increase, please leave them in the comments. if you found this article helpful, please subscribe and share it.