Year-End Tax Adjustment: Full Schedule & Roles
Year-end tax adjustment is a critical payroll task concentrated in November–December. Understand the full flow: eligibility checks, collecting declarations, calculations, and issuing withholding statements.
【Who is eligible?】
Generally: employees still on payroll as of December 31, with annual income of ¥20 million or less.
Excluded: employees working at multiple employers (at secondary employers only), employees who resigned mid-year (with some exceptions).
【Approximate schedule】
Late October: Distribute declaration forms and instructions
November–: Collect forms (basic deduction, spousal deduction, dependent deduction, insurance premium deduction declarations)
Early December: Calculate and reconcile (finalize over/under-withholding)
December payroll: Refund or collect the difference
Following January: Issue withholding statements; submit statutory documents to the tax office
【Payroll staff roles】
✓ Distribute and guide completion of forms
✓ Verify supporting documents (insurance premium certificates, housing loan balance certificates, etc.)
✓ Calculate, correct, and reconcile
✓ Issue withholding statements
【Year-end adjustment in WorkVell】
Supports electronic collection of declaration forms, automatic deduction calculation, and PDF generation of withholding statements.
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