{"slug":"income-tax-japan","name":"Japan Income Tax Calculator (2024)","category":"fortune","tags":["earning","tax","planning"],"tagline":"2024 Japan income tax: tax owed, effective rate, marginal rate, and take-home pay.","endpoint":"https://xearno.tools/api/v1/tools/income-tax-japan","page":"https://xearno.tools/t/income-tax-japan","description":"Computes Japan personal income tax for 2024 using the official progressive brackets, and explains the number the way it actually works: your marginal rate versus your effective rate, how far you are from the next bracket, and exactly what this model excludes.","inputSchema":{"type":"object","properties":{"annualIncome":{"description":"Annual income (JPY)","type":"number","minimum":0,"default":5000000},"deduction":{"description":"Deductions (JPY) Prefilled with the standard deduction/allowance.","type":"number","minimum":0,"default":480000}},"required":[],"additionalProperties":false},"methodology":["Cumulative progressive calculation: each slice of taxable income is taxed at its bracket's rate — 5% up to 1,950,000, 10% up to 3,300,000, 20% up to 6,950,000, … up to 45% at the top. Taxable income = annual income − deductions.","Basis: National income tax, 2024 brackets, basic deduction ¥480,000. Bracket tables are updated when the jurisdiction publishes new rates; the tax year is stated in the tool name so you never mistake stale rates for current ones.","Scope: personal income tax only. Excluded: resident tax (~10%), social insurance, and employment-income deduction beyond the basic ¥480,000. Real filings involve credits, reliefs, and personal circumstances this calculator deliberately does not guess at."],"usage":"POST https://xearno.tools/api/v1/tools/income-tax-japan with a JSON body matching inputSchema."}