HR & LaborSocial insuranceCoverage expansion

Expanded Social Insurance Coverage: What Companies Should Prepare Now

The expansion of social-insurance coverage is progressing in stages on both the wage requirement and the company-size requirement. Given this "widening scope", we summarize the practical steps SMEs should prepare now.

2026.06.18 updated 5 min read
Share
What you'll learn here
  • The overall flow of the coverage expansion
  • The requirements for short-time workers to enroll
  • Four practical steps companies should prepare
  • How to think about holding down the added burden

01The overall flow of the coverage expansion

The expansion of social-insurance coverage is advancing in the direction of "coverage for more working people". The key is that the two requirements that used to narrow eligibility — the wage requirement and the company-size requirement — are being eased and removed in stages.

  • Wage requirement (¥88,000+/month) → heading for abolition
  • Company-size requirement (number of employees) → being lowered and removed in stages

02The requirements for short-time workers to enroll

Whether a short-time worker becomes eligible for social insurance is judged by several requirements. The more the requirements ease, the more people become eligible.

RequirementDetails
Working hoursScheduled weekly hours at or above a set level
Employment periodExpected to be employed continuously
Not a studentStudents are, in principle, out of scope
Wages / company sizeEasing and removal are in progress

03Four practical steps companies should prepare

  1. Identify eligible staff: take stock of part-time and casual workers' hours and employment status
  2. Estimate costs: estimate the employer's social-insurance premiums for newly enrolling employees
  3. Prepare explanations: be able to explain the change in take-home pay and the coverage benefits
  4. Handle procedures: decide the schedule and owner for enrollment procedures
Caution
If your response to the expansion is late, you may incur a retroactive premium burden from missed enrollments. Identifying eligible staff should start early, not "at the last minute".

04How to think about holding down the added burden

Key point
A rise in social-insurance premiums is unavoidable, but by tackling it together with productivity gains and efficiency, you can keep overall labor costs in balance. It's good to advance consideration of DX and labor-saving investment alongside it.

The coverage expansion is a system that leads not only to "cost" but also to "peace of mind for working people". Let's prepare positively.

Summary

The coverage expansion is advancing in stages on both the wage and the company-size requirements.

SMEs should advance "identifying staff, estimating costs, preparing explanations, and handling procedures" early.

The added burden is unavoidable, but tackling it with productivity gains keeps things in balance.

Talk to Aquamarine about tax & business

  • Free first consultation
  • Online consultations available
  • AI & DX supported
Get in touch

This article is based on information available at the time of publication. Rules and systems may change. Please consult a professional before making any individual decisions.

Talk to us — we're happy to help.

Your first consultation is free. Our team supports you in five languages.

Free Consultation