Complete Guide to Severance Pay Calculation: Take-Home Amount and Tax-Saving Strategies Based on Salary and Years of Service

What You Really Need to Know About Severance Pay

Severance pay is a legally mandated amount paid to employees who have worked for at least one year, as stipulated by the Employee Retirement Benefit Security Act. It's far more than just a bonus — it can have a significant impact on a worker's financial future.

Eligibility conditions are straightforward. If you work an average of 15 hours or more per week and have been continuously employed for at least one year, you are entitled to severance pay. This applies to contract workers and part-timers as well.

The basic calculation formula is as follows:

Severance Pay = Average Daily Wage × 30 days × Years of Service

The key figure here is the average daily wage — calculated by dividing your total earnings over the three months before leaving by the total number of days in that period. If you received a raise or a performance bonus before leaving, your severance pay will naturally be higher as well.

Key Answer: Severance pay is calculated as Average Daily Wage × 30 days × Years of Service.

Real-World Severance Calculations by Salary [[TOOL:slug]]

Many people wonder how much severance pay changes depending on their salary. In practice, the difference between earning ₩40 million and ₩100 million per year is substantial.

Annual Salary ₩40M, 5 Years of Service:

• Average monthly salary: ₩40M ÷ 12 = ₩3.33M
• Average daily wage: ₩3.33M × 3 ÷ 91 days ≈ ₩109,800
• Severance pay: ₩16.47M

Annual Salary ₩60M, 10 Years of Service:

• Average daily wage: (₩60M ÷ 12 × 3) ÷ 91 ≈ ₩164,800
• Severance pay: ₩49.44M

Annual Salary ₩100M, 15 Years of Service:

• Average daily wage: (₩100M ÷ 12 × 3) ÷ 91 ≈ ₩274,700
• Severance pay: ₩123.61M

Retirement Income Tax and Tax-Saving Strategies

One thing many people overlook is that retirement income tax applies to severance pay. However, taking full advantage of deductions based on years of service can significantly reduce your tax burden.

Deductions by Years of Service

• Up to 5 years: ₩1M × Years of Service
• Over 5 years, up to 10: ₩5M + ₩2M × (Years of Service − 5)
• Over 10 years, up to 20: ₩15M + ₩2.5M × (Years of Service − 10)
• Over 20 years: ₩40M + ₩3M × (Years of Service − 20)

Someone with 20 years of service can deduct as much as ₩40 million — a remarkable difference.

Using an IRP Account: A Tax-Saving Opportunity

Receiving your severance pay into an IRP (Individual Retirement Pension) account offers significant tax benefits. If you withdraw it as a pension annuity after age 55, you can receive a 30–40% reduction on your retirement income tax.

Here's an example:

• Severance pay of ₩50M with a retirement income tax of ₩5M:
• Lump-sum withdrawal: Pay ₩5M in tax immediately → Take home ₩45M
• IRP annuity (₩12M/year over 4 years): Tax reduced to ₩1.4M (70% reduction) → Tax savings of ₩3.6M

What to Do If Your Severance Pay Is Withheld

If you haven't received your severance pay within 14 days of leaving your job, you must file a wage arrears complaint with the regional office of the Ministry of Employment and Labor. Withholding severance pay is a criminal offense — penalties include up to three years in prison or a fine of up to ₩30 million.

💡 Practical Insights

While other blogs only cover general rules like "severance pay = monthly salary × years of service," the actual amount received by Korean workers varies by more than 30% depending on the timing of resignation and how it's received. According to 2024 Ministry of Employment and Labor statistics, the average severance payout per person is approximately 28 million KRW based on an average tenure of 6.8 years — but the 70% of workers who took a lump-sum payment ended up paying an average of 4.8 million KRW more in taxes than those who received it as an IRP annuity. HR managers advise that "resigning on December 31 versus January 2 creates a one-year difference in service tenure, which can widen the deduction amount by over 1 million KRW." There are also documented cases where an employee who had worked 5 years and 8 months stayed an extra 4 months to complete 6 full years and saw their severance pay increase by approximately 2.8 million KRW. Additionally, a Korea-specific tax optimization point: if you switch from a DB (Defined Benefit) plan to a DC (Defined Contribution) plan before resigning, some companies will settle the already-accrued DB amount at that point — if this timing coincides with your peak salary period, the average wage calculation will be at its highest, which is advantageous. Finally, withdrawing from an IRP account before age 55 triggers a 16.5% miscellaneous income tax, eliminating all tax benefits — so unless there's a legally recognized reason such as purchasing a home or undergoing medical treatment for 6 months or more, you should leave it untouched.

Conclusion: Take a Strategic Approach

Severance pay isn't just money you receive passively. You can maximize your actual take-home amount through an IRP account. Before resigning, consult a tax professional and compare the after-tax amounts between IRP annuity payments and a lump-sum payout. In particular, if you are in a position to receive annuity payments starting at age 55, you should strongly consider utilizing an IRP.

FAQ

Q1. Are bonuses included in the severance pay calculation?

A: Regularly paid bonuses are included in the average wage. Bonuses received in the 3 months before resignation are divided by 3 to calculate a monthly equivalent, which is then added to the total. However, irregular or non-recurring bonuses may be excluded.

Q2. Can part-time workers and contract employees receive severance pay?

A: Yes. Anyone who works 15 hours or more per week for 1 year or more is entitled to severance pay regardless of employment type. If a contract has been repeatedly renewed, the entire period is counted cumulatively.

Q3. By when must severance pay be paid?

A: Payment is required within 14 days of the resignation date in principle. An extension can be agreed upon by both parties, but any delay beyond 14 days incurs an annual interest penalty of 20%.

Q4. If I have a DC-type pension plan, is there no separate severance pay?

A: A DC-type retirement pension is a system where severance pay is deposited into a pension account each year. Upon resignation, you receive the amount accumulated in the pension account without a separate severance settlement.

Q5. Can severance pay be received in installments?

A: A lump-sum payment is the legal default. However, receiving it into an IRP account and then withdrawing it as an annuity starting at age 55 is possible, and in that case, there are tax benefits.

Q6. How is the average wage calculated for salaried employees?

A: Annual salary ÷ 12 = monthly wage equivalent, then 3 months of wages before resignation are totaled and divided by the total number of days in that period. If performance bonuses are included, the quarterly payout amount is divided by 4 and converted to a monthly equivalent.

Expert Tips: Payout Differences Based on Retirement Timing

Resigning right after a salary raise is advantageous: The average wage used to calculate severance pay is based on the 3 months of salary immediately before resignation. If your salary increased in March, resigning after June means the raised salary is reflected in all 3 months of the calculation period, increasing your severance pay.

Resigning right after bonus payment: If your company pays performance bonuses heavily in Q4, resigning immediately after the Q4 payout means the bonus will be factored into your average wage.

Check tenure in 1-year increments: Working 11 months and 23 days results in zero severance pay, but working 12 months and 1 day generates a full year's worth. If your tenure is close to a 1-year milestone, it is advantageous to complete it.

Related Calculation Tools

• Severance Pay Calculator — Instant calculation by entering your salary and years of service
• National Pension Benefit Calculator — Plan your income after retirement

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Reference: Bank of Korea Economic Statistics