Japan Overtime Pay Calculator — 残業代計算
残業代計算ツール — Calculate overtime pay per Japan Labor Standards Act
Calculate your Japan overtime pay (残業代) based on Labor Standards Act
(労働基準法) rates. Enter your monthly salary and overtime hours to see
your total pay including standard overtime, late-night work, and holiday
work premiums. Free, no login required.
Japan Overtime Pay Rate Reference (残業代割増率 一覧)
| Situation | Japanese | Rate | Example (¥1,875/h) |
|---|
| Standard overtime (>8h/day or >40h/week) | 普通残業 | 1.25× | ¥2,344/h |
| Late-night work only (22:00–05:00) | 深夜労働 | 1.25× | ¥2,344/h |
| Overtime + late night | 深夜残業 | 1.50× | ¥2,813/h |
| Statutory holiday work | 休日労働 | 1.35× | ¥2,531/h |
| Holiday + late night | 休日深夜労働 | 1.60× | ¥3,000/h |
| Over 60h/month (all companies, from Apr 2023) | 長時間残業 | 1.50× | ¥2,813/h |
* Based on ¥1,875/h hourly rate (¥300,000 monthly ÷ 160 hours).
Rates per Japan Labor Standards Act (労働基準法).
How Japan Overtime Pay Works (残業代の計算方法)
Japan’s overtime pay system is governed by the Labor Standards Act
(労働基準法). The legal limit for regular work is 8 hours per day and
40 hours per week. Any work beyond these limits must be compensated at
a minimum of 1.25× the regular hourly rate. Your
hourly rate is calculated by dividing your monthly salary by your
scheduled monthly working hours — typically 160–176 hours depending on
your contract.
Late-night work between 22:00 and 05:00 carries an additional premium,
bringing the effective rate to 1.50× when combined with
overtime. Work on statutory holidays (法定休日 — generally one day per
week guaranteed by law) is paid at 1.35×, or
1.60× if it also falls in late-night hours. Since April
2023, overtime exceeding 60 hours per month must be paid at
1.50× for all companies.
36 Agreement and Overtime Caps (三六協定)
To legally require overtime work, employers must have a written
36 Agreement (三六協定, san-roku kyōtei) in place,
filed with the Labor Standards Inspection Office. Under Japan’s 2019
Work Style Reform rules, standard overtime is capped at 45 hours/month
and 360 hours/year. In special circumstances (繁忙期), this can be
extended to 100 hours/month and 720 hours/year, but 80h/month average
and 100h single-month caps apply.
If your employer requires overtime without a valid 36 Agreement, or
does not pay the correct overtime premiums, you may report this to
the nearest Labor Standards Inspection Office (労働基準監督署). For
salary calculations including all deductions, use the
Japan salary calculator.
Overtime rates per Japan Labor Standards Act (労働基準法 第37条).
Work Style Reform rules effective April 2019 (large companies) and
April 2020 (SMEs).
Frequently Asked Questions
What is the overtime pay rate in Japan?
In Japan, overtime pay rates are set by the Labor Standards Act (労働基準法). Standard overtime (work beyond 8 hours/day or 40 hours/week) is paid at 1.25× the regular hourly rate. Late-night work (22:00–05:00) adds an additional 1.25× premium. Holiday work on statutory holidays is paid at 1.35×. If overtime hours exceed 60 per month, the rate increases to 1.50× for all companies as of April 2023.
How do I calculate my hourly rate from monthly salary in Japan?
To calculate your base hourly rate from a monthly salary in Japan, divide your monthly gross salary by your scheduled working hours per month. For example, if your monthly salary is ¥300,000 and you work 160 hours per month (8 hours × 20 days), your hourly rate is ¥300,000 ÷ 160 = ¥1,875. This is the base rate used to calculate overtime pay.
What counts as overtime in Japan?
In Japan, overtime (時間外労働) is work that exceeds the statutory limits of 8 hours per day or 40 hours per week, as defined by the Labor Standards Act (労働基準法). Work between 22:00 and 05:00 is classified as late-night work (深夜労働) and carries an additional premium regardless of whether total hours exceed the statutory limit. Work on statutory holidays (法定休日, typically one day per week) is classified as holiday work.
What is the 36 Agreement (三六協定) in Japan?
The 36 Agreement (三六協定, san-roku kyōtei) is a written agreement between an employer and employee representatives that allows overtime work beyond the statutory 8h/day, 40h/week limits. Without a 36 Agreement, employers cannot legally require employees to work overtime. The agreement must be filed with the Labor Standards Inspection Office. Under 2019 Work Style Reform rules, monthly overtime is capped at 45 hours (100 hours in special cases).
Does the 1.5× overtime rate for over 60 hours apply to all companies in Japan?
Yes — as of April 1, 2023, the 1.5× overtime pay rate for monthly overtime exceeding 60 hours applies to all companies in Japan, including small and medium-sized enterprises (中小企業). Previously, this rule applied only to large companies. The change was part of Japan’s Work Style Reform (働き方改革) legislation.