Free business tools for Japan

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Consumption Tax 4-Method Optimizer

Compare standard, simplified, 20% and the new 30% special rule. The only calculator that includes 3割特例.

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Employee True Cost Calculator

The real cost of an employee including employer social-insurance burden.

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T-Number Bulk Validator

Validate invoice registration numbers in bulk — format, check digit and NTA registry lookup.

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Bank Transfer QR Generator

Generate a QR code for your bank-transfer details to paste into invoices.

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Freelance Take-Home Calculator

Net income after all taxes and insurance.

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Withholding Tax Calculator

Compute monthly salary and freelancer withholding tax.

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特商法 Disclosure Generator

Generate the legally required e-commerce disclosure.

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Depreciation Calculator

Straight-line and declining-balance depreciation schedules.

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Late-Payment Interest Calculator

Statutory / contractual interest on overdue invoices.

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Freelance Rate Calculator

Work backwards from take-home to your required rate.

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Restaurant Allergen Card

Bilingual allergen cards for restaurants (28 items).

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Menu Cost Calculator

Food cost and recommended price per dish.

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Paid-Leave Register Generator

Compliant annual paid-leave register.

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Statutory Labor Records Bundle

Worker register, wage ledger, attendance and leave records in one bundle.

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Before/After Photo Report

Before/after photo reports for construction & services.

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Pesticide Use Record

Pesticide application records per MAFF guidelines.

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Driver's Daily Log

Compliant driver daily logs for fleet operators.

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Fleet Management Ledger

Track 車検 & insurance expiry with colour-coded alerts (browser-stored).

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Inheritance Tax Estimator

Estimate inheritance tax from assets and heirs.