Social insurance and director/employee payroll — overview

Social insurance (社会保険) and the payroll of directors and employees form a large topic with many procedural details. Topics covered: the social insurance rate and overall payroll cost structure; the obligation to pay contributions even at a loss; minimizing contributions through a small salary; threshold effects in the contribution tables ("bands"); the effect of commuting allowances on insurance; pension system registration; labor insurance; withholding income tax payment rules; periodic pension fund audits; registering a director's salary and the "equal periodic payment" rule (定期同額給与); director bonus rules; the choice between salary and dividends; switching insurance on becoming a director; dependent status on a spouse's insurance; the company's resident tax and the 給与支払報告書 report; the January 31 deadline for several corporate reports; the new 2026 social levy; and ways to pay taxes and contributions. See the linked detail records for each topic.