Probation Period Rules for SSW Workers in Japan: Pay, Dismissal, and Visa Risks

Most SSW jobs in Japan begin with a probation period — typically 1 to 6 months during which the employer can confirm whether you're a good fit, and you can confirm the same about the employer. Probation in Japan is real but the legal protections are not as weak as many foreign workers fear: you are still a regular employee with most of the same rights, the employer cannot dismiss you on a whim, and the time counts toward your continuous service.

This guide explains exactly how probation works for SSW workers: typical lengths, what your pay should be (hint: usually the same as the regular monthly salary), what the employer can and cannot legally do during 試用期間, the dismissal rules that are easier to apply during probation, what counts toward your continuous-employment record, and how to navigate the probation safely with your SSW visa intact.

What 試用期間 Actually Is — and What It Isn't

Under mainstream Japanese labor-law practice, 試用期間 is usually not a separate, temporary contract. It is typically the start of the regular employment contract, with a probationary clause that gives the employer broader — but not unlimited — grounds to refuse continued employment or terminate. Always check the actual written contract structure. Important facts:

• You are already an employee from day one of probation, and the usual labor-law protections apply.
• Your continuous-service clock for paid leave starts from day one, and social insurance enrollment (where the legal thresholds are met) and continuous-service credit apply from day one (the 10-day paid-leave entitlement itself arises after 6 months — see below).
• The contract itself does not end automatically when probation ends — if the employer does nothing, you continue as a regular employee.
• The employer's broader right to dismiss during probation is established by Supreme Court case law (Mitsubishi Jushi case, 1973), but the employer still must show objectively reasonable grounds and the dismissal must be socially acceptable. It is easier than dismissing a tenured employee, but it is not arbitrary.

Typical Probation Length

There is no statutory standard length, but typical practice for SSW positions:

A probation period longer than 6 months may draw closer scrutiny in Japan depending on the role and circumstances, and a probation period longer than 1 year may be considered excessive unless there is a strong and reasonable justification.

Pay During Probation — Should Be the Same

This is one of the most misunderstood points. Japanese law does not allow an employer to pay below the minimum wage or ignore overtime premiums just because a worker is in probation. In many proper SSW contracts, the base salary during probation should be the same as the stated regular monthly salary unless a different probation rate is clearly written, lawful, and consistent with SSW equal-treatment requirements.

What can legitimately differ:

• Eligibility for bonuses may be reduced or waived during probation, depending on company policy. Bonuses are legally optional in Japan and the contract sets the rules.
• Position allowances may not start until probation ends.
• Some allowances tied to specific responsibilities may activate only after probation, if the contract is explicit.

What should be the same during probation as after:

• Base monthly salary.
• Overtime premiums (+25% for hours over 8/day or 40/week, rising to +50% for monthly overtime exceeding 60 hours; +25% for late-night 10pm–5am; +35% for legal holidays).
• Commuting allowance, if it is provided under the employment contract or company rules.
• Social insurance enrollment (shakai hoken), where the legal enrollment requirements are met — as is usually the case for full-time SSW direct employment.
• Workers' accident insurance and employment insurance.

What the Employer Can Do During Probation

The employer's broader rights during 試用期間 (relative to after probation):

• Assess your ability, attitude, attendance, language progress, and team fit more strictly.
• Provide more frequent feedback and corrective guidance.
• Decline to confirm your employment at the end of probation if you objectively do not meet the requirements of the role (this is the most important difference from post-probation dismissal).
• Sometimes, extend probation by a reasonable amount with your agreement (rare and scrutinized; see below).
• Reassign you to different tasks or shifts within the scope of the contract.

What the Employer Cannot Do During Probation

The employer's behavior during 試用期間 is still bound by Japanese labor and anti-discrimination law:

• Cannot pay below the prefectural minimum wage.
• Cannot withhold the legally required overtime premiums.
• Cannot refuse to enroll you in shakai hoken if you meet the standard thresholds (and most SSW full-time workers do from day one).
• Cannot fire you for arbitrary reasons (race, nationality, religion, gender, pregnancy, union membership, family situation, etc.).
• Cannot fire you without showing "objectively reasonable grounds" and the dismissal being "socially acceptable." Probation widens the employer's discretion but does not eliminate this standard.
• Note on the first 14 days: Labor Standards Act Article 21 provides a narrow exemption from the 30-day advance-notice / pay-in-lieu rule (Article 20) for workers within their first 14 days of probation. From day 15 onward, the 30-day notice or pay-in-lieu rule applies. The exemption is only from the notice requirement — the substantive dismissal protections (objectively reasonable grounds, social acceptability) still apply even within the first 14 days.
• Cannot harass you, force you to perform tasks outside the contract, or retaliate against legitimate complaints.

Your Rights as a Probationary Employee

• The same minimum-wage and overtime protections as any other employee.
• Shakai hoken enrollment from your first day of work where the legal enrollment requirements are met; for full-time SSW direct employment, this is usually mandatory.
• Health and safety protections under the Industrial Safety and Health Act.
• Paid leave accrual. Under Labor Standards Act Article 39, you become entitled to 10 days of paid leave after 6 months of continuous employment, provided you have worked at least 80% of scheduled days. Probation counts toward this 6-month threshold.
• Right to resign under Civil Code Article 627 if your contract is indefinite-term (2 weeks' notice). Note that many SSW contracts are fixed-term, in which case early resignation follows Civil Code Article 628 ("unavoidable reasons") — though under Labor Standards Act Supplementary Provision Article 137 you may resign at any time once one year has passed, if the contract period is longer than one year.
• Right to seek consultation at the Labor Standards Inspection Office, the Comprehensive Labor Consultation Corner, or the Yorisoi Hotline (0120-279-338).

Dismissal Risk During Probation — The Important Nuances

The Supreme Court's framework on probation dismissal (Mitsubishi Jushi case, 1973) is that the employer's right to refuse continued employment at the end of probation is wider than the right to dismiss a tenured employee, but it still requires:

• Objectively reasonable grounds — concrete shortcomings, not vague dissatisfaction.
• The dismissal must be socially acceptable in light of all circumstances.
• The grounds must be reasons that could not have been known at hiring or that have emerged through the probation process.

Practical implications for SSW workers:

• The employer cannot fire you simply because they have changed their mind. They must point to specific shortfalls (e.g., poor attendance, inability to perform a clearly explained task, failure to follow safety rules).
• Inability to do work that you were never trained to do is generally not a valid ground unless your contract specified that ability.
• Your Japanese-language level being materially below what the contract or hiring conditions assumed may become a relevant factor, especially if it affects safety or essential job performance, but the employer should still consider the actual circumstances, training, and whether the requirement was clearly explained.
• From day 15 of probation onward, the employer generally must follow the standard 30-day notice or pay-in-lieu rule, unless a specific legal exception applies.
• If you believe your dismissal during probation was unfair, you can challenge it — consult a labor lawyer, the Labor Standards Inspection Office, or the Comprehensive Labor Consultation Corner.

Probation Extension — Is It Legal?

An employer can ask to extend probation, but Japanese case law sets clear boundaries:

• The original contract must allow the possibility of extension, or you must agree to the extension. Without either, a unilateral extension is likely illegal.
• The reason for extension must be reasonable — e.g., the employer needs more time to evaluate due to extenuating circumstances (your extended absence, role change).
• The extension period must be limited and reasonable. An indefinite or very long extension would be questioned.
• If you refuse a proposed extension that is not contractually allowed, that refusal cannot itself be grounds for dismissal.

In practice, most SSW probation periods run their original length without extension. If your employer proposes an extension, ask why in writing, ask the new length, and check your contract before agreeing.

If You Want to Leave During Probation

You have the same right to resign during probation as at any other time. Practical points:

• If your contract is indefinite-term, Civil Code Article 627 generally applies: the contract ends two weeks after notice. If your contract is fixed-term, check the contract carefully because different rules may apply (Civil Code Article 628 "unavoidable reasons"; Labor Standards Act Supplementary Provision Article 137 after one year on a contract longer than one year).
• Most contracts specify 30 days — follow this for a clean reference and smooth visa transition (see our SSW Resignation Procedures guide for the full process).
• SSW status is tied to your accepting organization: even during probation, if you quit, you must notify Immigration within 14 days, and Article 22-4, Paragraph 1, Item 6 of the Immigration Control Act creates a revocation risk if you stop the SSW activity for 3 consecutive months or more without a justifiable reason — it is a risk window, not an automatic grace period.
• You can still claim your accrued wages, and any paid leave that has already legally accrued, on the same legal basis as after probation.
• If you leave very early (e.g., within the first month), prepare for a more difficult job search — very short tenure on a Japanese resume can raise questions. Be ready to explain it constructively (mismatch with job description, family circumstances, etc.).

Does Probation Count Toward Continuous Service?

Yes. Time worked during probation counts the same as any other employment time toward:

• Paid leave entitlement (10 days after 6 months at 80%+ attendance).
• Health insurance and pension contributions.
• Severance / bonus accruals per company policy.
• Residence-history calculations relevant to future permanent residence applications (note that how SSW periods count toward PR is a separate, complex question and probation itself does not guarantee favorable treatment — consult an immigration professional).
• SSW Type 1 5-year limit — time during probation counts.
• Work-experience records relevant to future SSW Type 2 applications — probation counts as ordinary work time, subject to each field's specific Type 2 requirements (skill exams and field-specific experience rules).

Probation and Your SSW Visa

• Your SSW Type 1 visa is granted (or status changed) based on the employer's standard contract terms, including the probation clause. Probation itself is not a separate visa concept.
• If the employer ends your employment during probation, you can no longer perform SSW activities for that accepting organization. Your status of residence does not automatically disappear, but Article 22-4, Paragraph 1, Item 6 of the Immigration Control Act creates a revocation risk if you stop the SSW activity for 3 consecutive months or more without a justifiable reason. Notify your registered support organization immediately and start the job search.
• If you resign during probation, the same rules apply: 14-day notification to Immigration, Article 22-4 revocation-risk window, and the support organization helps with the transition.
• Active job search and timely communication with Immigration and your support organization may help show a justifiable reason for not currently performing the SSW activity, but the assessment is case-specific — this is a risk window, not an automatic 3-month grace period.

How to Pass Probation Safely

1. Show up on time, every day. Attendance is the single most reviewed metric during probation. A few unexpected absences in the first 3 months will weigh heavily.
2. Take notes during training. Japanese workplaces value workers who don't ask the same question twice.
3. Ask for feedback proactively at week 2, week 6, and before the end of each month. Better to know about a concern early than be surprised at month 3.
4. Show concrete improvement on whatever feedback you receive. Small visible improvements matter more than large invisible effort.
5. Build relationships with your team, not just your supervisor. Co-worker opinion often filters into the probation evaluation.
6. Confirm in writing any change to your duties, shifts, or location that wasn't in the original contract.
7. If you experience workplace harassment, unpaid overtime, or unsafe conditions, document and consult the Yorisoi Hotline or your registered support organization early. Probation does not strip you of these rights.
8. Use any free Japanese language support your employer or support organization offers. Visible language improvement during probation is heavily weighted in favor of confirmation.
9. If you sense the employer is not happy, request a clear conversation about expectations before the probation end date. Sometimes a problem can be fixed if both sides talk about it; the worst outcome is finding out only at the end.

Frequently Asked Questions

Summary

The Japanese probation period is real but not as harsh as many foreign workers fear. You are an employee from day one, your base pay should usually be the same as after probation, continuous service for paid leave and shakai hoken (where eligible) starts from your first day, and the employer cannot dismiss you arbitrarily. The most important things you can control are attendance, language progress, and proactive feedback — doing those three well greatly improves your chance of a smooth probation confirmation.