Kika (帰化) for Indian passport holders — the whole journey from your first Legal Affairs Bureau visit to your new koseki, distilled into a five-move action plan and an interactive roadmap you can work through.
Read the action plan below in two minutes, then open any section to track residency, prepare every Ministry of Justice document, score your readiness, and walk each step.
2026 update. This roadmap is built around the 5-year residency baseline (Article 5, Nationality Act) that still anchors the document set. Effective April 1, 2026, Japan raised the minimum residency to 10 years, tax verification to 5 years, and social insurance to 2 years. The interactive tracker has a toggle to recompute against either regime. Source →
If you read nothing else, read this. Each move links to the part of the interactive roadmap that does the heavy lifting.
Hold a valid status of residence for 5 continuous years (10 from April 2026), with at least 3 years on a work-eligible status. Pay every tax and pension instalment on time, keep traffic violations at zero, and avoid trips abroad over ~90 days that reset the clock.
The longest phase. Pull Japan-side records (residence, tax, pension, employment, entry/exit history) and India-side source documents (birth, parents' marriage, PCC) — every India document needs MEA apostille and a certified Japanese translation. Allow 6–10 weeks for India paperwork.
"Good conduct" (素行) and "ability to secure a livelihood" (生計) are judged holistically — there is no published rubric. Run the self-assessment to surface the red flags case officers actually probe: tax arrears, license suspensions, thin income, weak Japanese, or unresolved dual-citizenship intent.
Submit at your Legal Affairs Bureau in person (free of charge), then expect a 30–90 minute interview, possible unannounced home and workplace visits, and behind-the-scenes checks with your city office, employer and police in both countries. Decision by the Minister of Justice typically lands in 8–14 months.
India bars dual citizenship: acquiring Japanese nationality automatically ends your Indian citizenship under the Citizenship Act, 1955. Surrender your Indian passport for a Renunciation Certificate, then apply for an OCI card as the lifelong-access fallback. Keep Indian tax returns current and use the India–Japan DTAA.
Six working sections — each one is a tool, not just text. Pick where you are in the journey.
Live residency calculator, a checkable 12-category document set, a scored readiness assessment, the 7-step process timeline, the India-specific brief, and the full arrival-to-koseki schedule — with a 5-year / 10-year rules toggle. Works on any device, your progress is saved in your browser.
Launch the roadmap → 01 · ResidencyEnter your arrival date to compute days completed, your earliest eligible application date, and whether any absence has broken continuity.
Track residency → 02 · DocumentsEvery mandatory Ministry of Justice category plus the India-side source documents — as a checklist you can tick off to see your progress.
Open the checklist → 03 · ReadinessA 10-factor score across conduct, livelihood, Japanese ability and dual-citizenship intent — the things case officers actually weigh.
Score yourself → 04 · ProcedureSeven stages from first consultation to Official Gazette announcement — what happens at each, plus the real interview questions.
Walk the process → 05 · India-specificLoss of Indian citizenship, the OCI fallback, the documents to apostille via MEA, and tax in both jurisdictions under the DTAA.
See India steps →The country you would be joining — its people, its economy, and a few of the places that make it. Worth a look before committing to a decade-long path.
Figures: Japan Statistics Bureau & IMF (2024 estimates); foreign-resident counts from Japan's Immigration Services Agency (2023). An ageing, shrinking population is part of why skilled-resident and naturalization routes matter — and why Japanese-language integration weighs so heavily in the decision.
The five moves, the timeline and the document set on a single printable sheet — save it as HTML or print straight to PDF, and keep a copy for your Legal Affairs Bureau folder.
Field note · azizsaif.com · More field notes · Home
This roadmap is general information for Indian nationals, not legal advice. Naturalization criteria are applied case-by-case by the Legal Affairs Bureau and the Ministry of Justice; day thresholds and document lists are guideline figures and change over time (note the April 2026 rule change). Confirm your specifics with the bureau with jurisdiction over your address and, where the stakes warrant it, a licensed administrative scrivener (行政書士) or lawyer.