Can Employers Cut Your Pay During a Probationary Period? Legal Limits and What to Check Before You Join

Setting a lower salary during a probationary period than after formal employment is not, in itself, illegal in Japan. However, it is only lawful if that amount was disclosed as a working condition before you joined. Cutting pay unilaterally after you start, or paying below minimum wage, is illegal.

This article draws the line between what is lawful and what is not when it comes to probationary pay, and sets out what to verify before you sign anything.

Lower Probationary Pay Is Not Illegal by Itself

The Labor Standards Act contains no provision requiring that probationary pay match post-confirmation pay. Wage levels are set by agreement between employer and employee, so a design that lowers base pay during the probationary period, or withholds certain allowances, is valid as long as it forms part of the contract. In practice, hourly rates reduced by a modest margin during probation are common in food service, retail, and manufacturing.

The Condition for Lawfulness Is Disclosure Before You Join

Article 15 of the Labor Standards Act obliges employers to disclose the amount and calculation method of wages in writing when the employment contract is concluded. Wages are an absolute disclosure item, so a verbal explanation alone is not sufficient. It follows that if pay differs between the probationary period and afterwards, that difference must also be shown in writing before you join. A notice of working conditions stating "probationary period: 3 months, base pay during that period: X yen" is lawful. Pay reduced after you start, with no such entry, is not.

When the Job Posting and the Written Notice Disagree

Figures in a job posting are an estimate, and do not by themselves fix the terms of your contract. That said, under the Employment Security Act, an employer that changes working conditions from what the posting stated owes a duty to disclose those changes to the applicant. If the posting said roughly 280,000 yen per month but the written notice says 240,000 yen during probation, ask for the reason and the post-confirmation figure before you sign. An employer that is evasive here is likely to take the same approach to changing your terms later on.

Four Lines That Make a Pay Cut Illegal

Some areas cannot be justified by pointing to the probationary period. If any of the following apply, the arrangement is likely unlawful even if you agreed to the figure.

1. Pay falls below minimum wage: Prefectural minimum wages apply to workers on probation as well. A contract below that level is void as to that portion, and the employer owes the difference.
2. Pay is cut after you join, without prior disclosure: This is a detrimental change to working conditions, and is not permitted without your consent.
3. Overtime, late-night, or holiday premiums go unpaid: There is no probationary exemption from premium wage obligations. "You are still in training, so there is no overtime pay" does not hold.
4. You are not enrolled in social insurance: If you meet the enrollment requirements for health insurance and employee pension, the employer must enroll you from your first day. Deferring enrollment until after probation is incorrect.

The Minimum Wage Exception Requires a Labour Bureau Permit

The Minimum Wage Act does provide an exception allowing a reduced minimum wage for people in a trial employment period, among others. This is not, however, a mechanism employers can invoke at will: it requires individual permission from the prefectural Labour Bureau Director, and the size of the reduction is capped. Paying below minimum wage without that permission is a straightforward violation. If the figure offered to you falls under your region's minimum wage, start by asking whether permission exists.

What Does Not Change During Probation

Being told about differences in treatment can leave the impression that rights are curtailed during probation. In reality, the scope of what can be varied is narrow.

• Annual paid leave: Accrues once you have worked continuously for six months from your start date. The probationary period counts toward that service, so the claim that "probation does not count toward length of service" is wrong.
• Workers' accident compensation insurance: Injuries sustained at work or commuting are covered regardless of employment type or probationary status.
• Dismissal rules: Dismissal during probation is given somewhat wider latitude than usual, but it is not unrestricted. Once you have worked beyond 14 days from your start date, advance notice or payment in lieu is also required.

Five Things to Confirm Before You Join

Before accepting an offer, and at the latest before signing the notice of working conditions, confirm these five points. Get each in writing rather than verbally.

1. Whether base pay during probation and base pay afterwards are each stated as a figure
2. Whether any allowances are withheld (housing, qualification, and so on), and if so, from when they begin
3. Whether the social insurance enrollment date is your first day of work
4. Whether the probationary period counts toward the bonus assessment window, and when the first bonus is paid
5. Whether an extension clause exists, and how pay is treated during any extension

Common Questions About Probationary Pay

How much of a reduction is typical during probation?

Many employers set no difference at all, and where one exists it typically stays within about ten percent. A gap exceeding twenty percent, or a reduction achieved by stripping out most allowances rather than adjusting base pay, is well within the range where you are entitled to ask for an explanation.

After joining, I was told my probationary pay would be a lower figure. Do I have to accept it?

If the notice of working conditions contains no such entry, the contract is what the notice says. Check the document first; if you are being paid a different amount from what it states, you can claim the difference. If discussion with the employer goes nowhere, consult the Labour Standards Inspection Office with jurisdiction over your workplace.

I was told commuting costs are not reimbursed during probation. Is that illegal?

Commuting allowance is not a statutory obligation; it depends on the work rules or the employment contract. Withholding it is therefore not automatically illegal. That said, if the job posting stated that commuting costs are covered and they are not, you can raise it as a discrepancy in terms and ask for an explanation.

My pay never rose even after probation ended.

If the notice of working conditions states the post-confirmation figure, the employer is obliged to pay it. Where there is no figure and the document says something like "determined according to ability," there is room to negotiate, so start by asking what the assessment was based on. If no improvement looks likely, it is time to consider moving to an employer that states its terms clearly.

Summary: The Issue Is Not the Amount, but Whether It Was Disclosed

A reduction during probation is lawful if it was disclosed in advance and stays above minimum wage. Conversely, cutting pay unilaterally after you join, dipping below minimum wage, or skipping premium wages and social insurance cannot be justified by pointing to the probationary period. The starting point for any assessment is always the notice of working conditions, and checking it before you sign is itself the way to protect yourself.

This article sets out general principles under Japanese law. Individual cases turn on their own facts, so for a specific dispute please consult the Labour Standards Inspection Office or a qualified professional such as a lawyer.