Managing Annual Social Insurance Premium Reports (Santei Kiso) and Mid-Year Revisions (Gekka Henko)
Use WorkVell to identify employees requiring social insurance recalculation for the annual report and mid-year revisions.
[Annual premium report (santei kiso-todoke)]
Reports April-June average compensation to set standard monthly remuneration (hyojun hoshu geppo) for September through the following August.
Deadline: July 10 each year.
[Extract target employees in WorkVell]
Payroll → Social Insurance → Annual Report Targets
Auto-calculates standard monthly remuneration from April-June payroll data.
[Mid-year revision (gekka henko-todoke)]
Required when a change in fixed compensation causes a 2-grade difference between the new 3-month average and the current standard monthly remuneration.
[Auto-detection in WorkVell]
Payroll → Social Insurance → Mid-Year Revision Targets
System automatically flags eligible employees 3 months after a fixed compensation change.
[Export data]
Export report form data as CSV (compatible with e-Gov electronic filing).
Submit to the pension office or file electronically.
⚠ Calculation rules (e.g., whether commuting allowance is included) may vary by tenant. Consult a licensed labor consultant.
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