What is the premium rate for overtime exceeding 60 hours per month?

To prevent excessive working hours, all employers in Japan must pay a mandatory 50% premium (1.50x base wage) for any overtime hours exceeding 60 hours in a single month.

How are late-night hours combined with regular overtime?

Work performed between 22:00 and 05:00 carries an additional 25% surcharge. When performed during overtime, the rates combine to 1.50x the hourly base wage.

JapanUpdated for 2026Finance

Japan Overtime Pay Calculator 2026 (Premium Wages & Night Surcharge)

Calculate exact Japanese statutory overtime pay under Labor Standards Act Article 37, including standard overtime (1.25x), late-night overtime (1.50x), statutory holiday work (1.35x), and monthly hours over 60 (1.50x).

Working Hours & Schedule Labor Law & Employment Salaries & Monthly Wages

Calculated Result

Total Overtime Pay

¥60,938

Hourly Base Wage Rate

¥1,875

Calculator Inputs

Base Monthly Wage for Overtime

Quick select:

Monthly Scheduled Working Hours

Quick select:

Regular Overtime Hours (Up to 60h)

Late-Night Overtime Hours (22:00-05:00)

Statutory Holiday Work Hours

Overtime Hours Exceeding 60h

Total Overtime Pay

¥60,938

Hourly Base Wage Rate

¥1,875

Gross Monthly Earnings

¥360,938

Total Premium Hours

25 hours

Standard Overtime (1.25x)

¥46,875

Late-Night Overtime (1.50x)

¥14,063

Holiday Work Pay (1.35x)

¥0

Hours Over 60 Pay (1.50x)

¥0

Overtime Premium Breakdown

Standard Overtime (1.25x)

¥46,875(77%)

Late-Night Overtime (1.50x)

¥14,063(23%)

Holiday Work Pay (1.35x)

¥0(0%)

Hours Over 60 Pay (1.50x)

¥0(0%)

Complies with Japan Labor Standards Act Art. 37. Certain allowances (commuting, family, rent) may be excluded from the hourly base wage only if statutory criteria are met.

This calculator is a mathematical model for general financial estimation, planning, and educational guidance. Results depend on your inputs and standard formulas, and do not constitute binding financial, tax, or investment advice. Always consult a qualified professional before making financial decisions.

Official Statute: 労働基準法第37条 (時間外・休日及び深夜の割増賃金) 及び月60時間超の時間外労働割増賃金率50%規定Last Verified: 2026-09-03

Calculation Methodology

Overtime Pay = Hourly Wage × (Regular Overtime × 1.25 + Late Night Overtime × 1.50 + Holiday Work × 1.35 + Over 60 Hours × 1.50)

Frequently Asked Questions

Only seven specific allowances can legally be excluded under Japanese labor law: family allowance, commuting allowance, separation allowance, child education allowance, housing allowance (conditional), bonus, and extraordinary wages.

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Japan Overtime Pay Calculator 2026 (Premium Wages & Night Surcharge)

Calculator Inputs

Overtime Premium Breakdown

Calculation Methodology

Frequently Asked Questions

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