Korea Additional Pay Calculator
Estimate South Korea pre-tax premium pay and gross pay for overtime, night work, holiday work, and overlapping segments.
This is a reference estimate using general Labor Standards Act Article 56 premium assumptions. Applicability and final pay can vary by workplace size, employment contract, comprehensive wage arrangements, exempt work types, rest breaks, and attendance records.
Additional Pay Estimate
Total Gross Pay
165,120 KRW
Base pay plus all premium additions for the entered work segments.
Total Premium Pay
30,960 KRW
Only the overtime, night, and holiday premium additions.
Base Pay
134,160 KRW
Pay calculated at the base 100% rate before premiums.
General premium assumptions: overtime +50%, night work +50%, holiday work within 8 hours +50%, holiday work over 8 hours +100%. Night premium is added separately when it overlaps. This is a pre-tax reference estimate, not legal advice.
Integrated Overtime, Night, and Holiday Assumptions
Reference date and last reviewed: July 11, 2026
Calculation Basis
Classifies weekday time beyond eight hours, 10 p.m.–6 a.m. night work, and holiday within-8 or over-8 tiers, then stacks applicable 50% or 100% premiums with base pay.
Reference Limits
It assumes the general structure for workplaces with at least five regular workers and a preset break-deduction order; it does not decide flexible schedules, inclusive wages, exemptions, or compensatory leave.
When to Confirm Officially
If break timing, workforce size, schedule system, holiday status, included premiums, or unpaid wages are disputed, review contracts, attendance, and payslips with a labor professional or authority.
Usage Tips
Use the integrated calculator first when premium conditions overlap
When overtime, night work, and holiday work overlap, individual calculators can miss the combined gross amount. Enter workday type, clock-in/out time, and breaks to review base pay, each premium, total premium pay, and total gross pay together.
What is Korea Additional Pay Calculator?
The Korea Additional Pay Calculator is an integrated gross wage reference tool for overtime, night work, holiday work, and overlapping premium segments. Enter hourly wage, workday type, clock-in time, clock-out time, and break hours to classify weekday overtime, the 10 p.m.-6 a.m. night window, holiday work within 8 hours, and holiday work beyond 8 hours. The result separates base pay, overtime premium, night premium, holiday premium, total premium pay, and total gross pay so overlapping premium hours are easier to review.
How to Use
- 1Enter the hourly wage. The default is KRW 10,320, the 2026 South Korea minimum hourly wage assumption used by this site.
- 2Choose whether the shift is a weekday or holiday shift. Weekday shifts focus on overtime and night overlap; holiday shifts focus on within-8, over-8, and night overlap.
- 3Enter clock-in time, clock-out time, and break hours. If the clock-out time is earlier than clock-in, the calculator treats it as next-day clock-out.
- 4Review the automatic classification cards for gross span, paid hours after break, overtime, night work, and holiday premium segments.
- 5Review base pay, overtime premium, night premium, holiday premium, total premium pay, and total gross pay.
- 6If actual break placement falls inside night work or holiday over-8 time, compare the estimate with attendance records before relying on it.
- 7Copy the result into payroll review notes, attendance summaries, or labor consultation preparation notes.
Calculating overlapping premium segments
Last reviewed: July 11, 2026Gross amount for each segment
segment gross = hourly wage×hours×(100% base + applicable overtime/night/holiday premiums)
The tool classifies time beyond eight weekday hours, 10 p.m.–6 a.m. night work, and holiday within-8 or over-8 tiers by minute. Overtime that is also at night receives both 50% premiums.
Example: weekday 09:00–23:00 with a one-hour break
- • Hourly wage: KRW 10,320
- • Weekday start 09:00 and end 23:00
- • One-hour break
- 1. 13 paid hours = 8 regular + 4 overtime + 1 overtime-night
- 2. base: 13×10,320 = KRW 134,160
- 3. overtime premium: 5×10,320×50% = KRW 25,800
- 4. night premium: 1×10,320×50% = KRW 5,160
Total premiums are KRW 30,960 and gross for the classified paid hours is KRW 165,120.
How to read the result
- The overlapping hour is 200% gross: 100% base plus 50% overtime and 50% night.
- Total premium pay and gross pay including the base amount are different values.
- Individual calculators isolate one premium and are useful for comparison when conditions overlap.
Conditions that change the result
- The model assumes the general eight-hour day and premium structure for workplaces with at least five regular workers.
- It does not decide flexible schedules, approved exempt work, inclusive-wage terms, or compensatory leave.
- Because break clock times are not entered, breaks are deducted in a preset order and can shift boundary classifications.
Common input mistakes
- Do not treat all on-site time as paid work or deduct the break twice.
- Do not add overlapping hours as two separate worked-hour blocks; that duplicates base pay.
- For a shift past midnight, confirm that the end time belongs to the next day.
Reference Knowledge
- ●Article 56 of South Korea's Labor Standards Act is the general reference point for overtime, night work, and holiday work premium structures.
- ●Weekday overtime premium is generally hourly wage × overtime hours × 50%, making a 150% total gross rate when base pay is included.
- ●Night work premium is generally hourly wage × night-work hours × 50%. Night work generally means work from 10 p.m. to 6 a.m.
- ●Holiday work is generally separated into within-8-hour premium at +50% and over-8-hour premium at +100%.
- ●Weekday overtime that also falls at night can be modeled as base 100% + overtime premium 50% + night premium 50%, or 200% total gross rate.
- ●Holiday over-8 work that also falls at night can be modeled as base 100% + holiday over-8 premium 100% + night premium 50%, or 250% total gross rate.
- ●Break time is excluded from worked hours. This calculator deducts breaks before premium classification and then deducts from lower-premium segments first as a practical estimate.
- ●Applicability can vary by workplace size, employment contract, comprehensive wage arrangement, approved exempt work type, rest breaks, and attendance records.
- ●This is a simplified pre-tax estimate. Deposited pay can differ because of tax, social insurance, company payroll rules, and settlement timing.
FAQ
Q.How is this different from the individual overtime, night work, and holiday calculators?
This integrated calculator reviews the whole shift and combines overlapping premium conditions. The individual calculators focus on one premium type only. Use this page when you want total gross pay for the full shift with overlapping premiums included.
Q.Is overtime plus night work 150% or 200%?
Including base pay, weekday overtime that also falls at night is commonly modeled as 200%: base 100% + overtime premium 50% + night premium 50%. The premium-only addition is 100%.
Q.How does holiday night work get calculated?
Holiday premium and night premium are reviewed together. Holiday night work within 8 hours can be 200% total gross rate, while holiday over-8 night work can be 250% total gross rate under the simplified structure used here.
Q.Where is break time deducted?
The calculator subtracts break hours from the gross shift span before premium classification. If the exact break was inside a night or holiday over-8 segment, compare the estimate with the actual attendance record.
Q.Can it handle shifts that pass midnight?
Yes. If the clock-out time is earlier than the clock-in time, it is treated as a next-day clock-out time. This covers common evening, overnight, and early-morning shifts.
Q.Can I use this under a comprehensive wage arrangement?
Use it as a reference only. Actual additional payment can depend on whether the arrangement is valid, what allowances are included, and how work hours are recorded.
Q.Does the same rule apply to workplaces with fewer than five regular employees?
Applicability can differ by workplace size. This calculator shows the general premium structure, so workplace-size exceptions should be checked separately.
Q.Why might the result differ from my payslip?
Common reasons include different ordinary-wage bases, excluded breaks, recognized work-hour rules, comprehensive wage handling, holiday classification, tax, social insurance, and whether the payslip shows gross or net pay.
