Compliance Guide• 対象: 🇯🇵 日本企業 •更新: 2026-10-08

Taxes & Withholding: Cross-Border Compliance Tax implications of hiring international contractors vs EOR full-time employees

このページの決定ゴール: 所得税法第161条(国外源泉所得)に基づく日本側源泉徴収0%の適法要件と、会社が保管すべき3大税務証憑を確定します。

Navigating taxes when paying overseas remote workers requires answering two critical questions: does your company have a withholding tax obligation at the source, and does the remote worker's presence create a permanent establishment (PE) corporate tax exposure?

Tax Treatment: Contractor vs EOR

DimensionIndependent ContractorEOR Full-Time Employee
Withholding ObligationGenerally 0% in employer country if services are performed entirely abroadLocal payroll tax withheld and remitted locally by the EOR entity
Worker Local TaxationWorker reports self-employed business income in their home countryWorker receives net pay after income tax and statutory social contributions
Permanent Establishment RiskModerate to High if contractor acts as dependent agent or signs contractsMinimal to Zero (EOR absorbs local employer legal standing)
Compliance DocumentationSigned Independent Contractor Agreement + Certificate of Non-ResidenceLocal Employment Contract compliant with destination labor law

Tax treaties generally attribute service income to the territory where the physical work is conducted.

Permanent Establishment (PE) Risk Checklist

Authority to Conclude Contracts

Do not grant remote contractors the legal authority to sign commercial contracts or negotiate terms binding your parent company.

Direct Supervision & Exclusivity

Avoid dictating fixed working hours or demanding strict exclusivity, which can trigger misclassification into an informal employment relationship.

Core Business Revenue Roles

Ensure contractors work in auxiliary or project-based capacities. Permanent sales reps negotiating local deals are prime targets for tax audits.

Select Your Hiring Structure

次の意思決定に進む (Next Action)

税務ルールを確認したら、送金口座と契約書の準備へ

源泉徴収0%の要件(国外での役務提供)を英文契約書に明記し、低コストで送金証明書が得られる送金インフラを整えましょう。

確認した情報源
  • National Tax Authorities: NTA (Japan), IRS (United States), BIR (Philippines), GDT (Vietnam), ITD (India)
  • OECD Model Tax Convention on Income and on Capital (Articles 5, 7, 14, 15)
  • International Tax Treaties and Cross-Border Payroll Standard Operating Procedures

最終確認日: 2026-10-08。法律・税率・為替は変わるため、契約や納税の前に現地の専門家または公的機関で再確認してください。