Investment calculators
for Japan
2 free, accurate investment calculators tuned to Japan's Tax Year 2026 rules. Every calculation runs in your browser — no sign-up, no tracking.
New NISA Calculator
Project your new NISA tax-free growth in seconds.
All 2 investment calculators
Japan investment— what's covered
SIP, mutual funds, 401k, ISA, super, NISA, RRSP and more. Each calculator is locked to Japan's Tax Year 2026 rules and reviewed by a locally-qualified accountant within 48 hours of any budget or rate change. The underlying law and source data are cited at the bottom of every calculator page.
Every calculation runs entirely in your browser — nothing is posted to our servers. We don't sell any loan, insurance, or filing product, so the numbers you see are unbiased.
Investment calculators in other countries
Comparing investment costs across markets? Jump to the same category hub for any of 6 other countries.