The Labor Standards Act sets minimum standards for labor conditions in Japan, including wages, working hours, rest periods, days off, paid annual leave, work rules, and labor inspection. Employers, workers, HR teams, and counsel consult it when checking whether a contract term, work schedule, wage payment, or workplace rule is anchored in a statutory minimum. This article covers selected core provisions of the Act and does not cover social insurance, worker dispatch, occupational safety rules under separate legislation, or individual dispute strategy.

Workers, Employers, and Minimum Standards

The Act first defines the parties and states that its standards operate as statutory minimums. Articles 1, 2, 9, 10, 11, 12, and 13 are the starting point for deciding whether the statute applies and how a conflicting contract term is treated.

Article 1 states that working conditions must satisfy the needs of workers who live lives worthy of human beings, and that the standards in the Act are minimum standards. The same article says that parties to labor relationships must not lower working conditions because of those standards and must endeavor to improve them. Article 2 requires working conditions to be determined by workers and employers on an equal footing, and requires both sides to comply with collective agreements, work rules, and labor contracts and perform their obligations in good faith.

Article 9 defines a Worker as a person employed at an enterprise or office and paid wages, regardless of the type of occupation. Article 10 defines an Employer as the business operator, the person responsible for business management, or any other person who acts for the business operator in matters concerning workers. Article 11 defines Wages as wages, salary, allowances, bonuses, and all other payments made by an employer to a worker as remuneration for labor, regardless of name.

Article 12 defines Average Wage by reference to wages paid during the three months before the reason for calculation arose, divided by the total number of days in that period, with detailed adjustments in the same article. Article 13 gives the minimum-standard rule legal effect in contracts: labor contract terms that do not meet the standards set by the Act are invalid for that part, and the invalid part is replaced by the statutory standard.

Labor Contracts, Dismissal, and Wage Payment

The contract chapter addresses what must be shown to the worker at hiring and what restrictions apply to dismissal and wage handling. Articles 14, 15, 16, 17, 18, 20, 22, and 24 are central for employment documents, termination checks, and payroll administration.

Article 14 limits the term of fixed-term labor contracts, except contracts without a fixed term and contracts setting a period necessary to complete a specified project. Article 15 requires the Employer, when concluding a labor contract, to clearly indicate Wages, working hours, and other working conditions to the Worker, and requires specified matters to be indicated by the method prescribed by Order of the Ministry of Health, Labour and Welfare. If the indicated working conditions differ from the facts, Article 15(2) allows the Worker to immediately cancel the labor contract.

Article 16 prohibits a contract that sets a penalty or predetermines the amount of damages for non-performance of a labor contract. Article 17 prohibits offsetting Wages against advances or other claims made on the condition of labor. Article 18 restricts compulsory savings connected with a labor contract and sets rules for cases where an Employer manages workers' savings by mandate.

Article 20 requires advance notice of dismissal at least thirty days before dismissal, or payment of Average Wages for at least thirty days, unless the statutory exceptions apply. Article 22 requires the Employer, when requested by a Worker after retirement, to deliver a certificate concerning the period of employment, type of work, position, Wages, reason for retirement, or other specified matters. Article 24 states the wage-payment principle: Wages must be paid in currency, directly to the Worker, in full, and at least once each month on a fixed date, subject to the exceptions stated in the same article.

Working Hours, Rest, Days Off, and Overtime

The working-time provisions are the most frequently consulted part of the Act for scheduling and payroll. Articles 32, 34, 35, 36, 37, and 41 set the basic framework for regular hours, rest periods, statutory days off, overtime agreements, premium pay, and exclusions.

Article 32 sets the basic statutory working-hour limits. An Employer must not have a Worker work more than forty hours per week, excluding rest periods, and must not have a Worker work more than eight hours per day for each day of the week, excluding rest periods. Articles 32-2 through 32-5 provide variable working-hour systems and flextime-style arrangements, but those systems depend on the detailed statutory conditions and implementing rules.

Article 34 requires rest periods during working hours. If working hours exceed six hours, the Employer must provide at least forty-five minutes of rest; if working hours exceed eight hours, the Employer must provide at least one hour of rest. Article 35 requires at least one day off each week, or four or more days off during a four-week period.

Article 36 allows work beyond the statutory working-hour limits or on statutory days off only when a written agreement with the majority labor union or majority representative is concluded and filed with the administrative agency, subject to the limits and conditions in that article. Article 37 requires premium wages for overtime, work on days off, and late-night work, with rates and additional rules specified in the article. Article 41 excludes specified categories from the working-hour, rest, and day-off provisions, including certain supervisory or managerial persons and persons engaged in surveillance or intermittent labor with administrative permission.

The Act also sets rules for leave, protection around childbirth, and workplace-wide rules. Articles 39, 65, 66, 67, 89, 90, 91, and 106 are useful checkpoints for leave administration and work-rule compliance.

Article 39 requires paid annual leave for a Worker who has been employed continuously for six months from the day of hiring and has reported for work on at least eighty percent of all working days. The number of leave days increases under the same article according to continuous service. Article 39(5) requires the Employer to grant paid annual leave at the season requested by the Worker, but allows the Employer to change the season if granting leave at the requested time would interfere with normal business operations.

Article 65 prohibits an Employer from having a woman work within six weeks before childbirth if she requests leave, or within fourteen weeks before childbirth in the case of a multiple pregnancy, and prohibits work within eight weeks after childbirth except in the limited case stated in Article 65(2). Article 66 restricts overtime, holiday work, and late-night work for pregnant women and women within one year after childbirth in the situations specified there. Article 67 gives a woman nursing an infant under one year old the right to request childcare time in addition to rest periods.

Article 89 requires an Employer that continuously employs ten or more Workers to prepare Work Rules and submit them to the administrative agency. The required matters include starting and ending times, rest periods, days off, leave, wage calculation and payment, retirement, and other listed matters. Article 90 requires the Employer to hear the opinion of the majority labor union or majority representative when preparing or changing Work Rules, and Article 106 requires the Employer to make the Act, related orders, labor-management agreements, and Work Rules known to Workers by the statutory methods.

Labor Inspectors and Enforcement Tools

The Act gives labor standards inspection authorities specific powers and creates criminal and administrative consequences for violations. Articles 101, 102, 104, 104-2, 114, 119, 120, and 121 are the main entry points for enforcement structure.

Article 101 authorizes Labor Standards Inspectors to enter workplaces, dormitories, and other attached buildings, inspect books and documents, and question Employers and Workers, subject to the article's requirements. Article 102 gives Labor Standards Inspectors the authority of judicial police officers for offenses under the Act. Article 104 allows a Worker to report a violation to the administrative agency or a Labor Standards Inspector, and prohibits the Employer from dismissing or otherwise treating the Worker disadvantageously because of that report.

Article 104-2 authorizes the Minister of Health, Labour and Welfare and Labor Standards Inspectors to require Employers and Workers to report necessary matters or appear, as necessary to enforce the Act. Article 114 allows a court, at a Worker's request, to order an Employer that violated specified wage-related provisions to pay an additional amount together with unpaid sums, within the limits stated in that article. Article 119, Article 120, and Article 121 set criminal penalties for specified violations and identify how penalties apply to persons who commit the violation and, in certain cases, to the business operator.