MaterialWhat it supportsIssuer or preparerTiming and check
Employment, income, and tax certificatesTo support the source, covered period, and continuity of the father's salary incomeThe sponsor's employer and the relevant tax authorityCheck the school's current validity-period rules, then obtain a version suitable for the April 2027 application
Notarized proof of the applicant–sponsor relationshipTo establish the relationship when someone else provides supportA notarial authority with jurisdictionProceed after checking the school and consular-jurisdiction rules
Japanese translations of income, savings, and relationship documentsSo the receiving office can compare each item with the originalThe applicant or a translator, as the school requiresPrepare after the final originals are fixed
Salary deposits, time-deposit records, and later remittance recordsTo connect the funding source, first-year cost period, evidenced amount, and later remittances; a balance alone does not establish support capacityThe bank and the sponsorConfirm the first-year amount, currency, and period against the current fee guide; retain dated records after remittances occur