https://productivity-works.com/categories/tax--investing/Recent content in Tax & Investing on Productivity Workshttps://productivity-works.com/images/default-og.pnghttps://productivity-works.com/images/default-og.pngHugoenFri, 15 May 2026 00:00:00 +0000https://productivity-works.com/posts/ideco-tax-deduction-calculator-japan/Fri, 15 May 2026 00:00:00 +0000https://productivity-works.com/posts/ideco-tax-deduction-calculator-japan/A plain-English guide to iDeCo's income deduction in Japan. Walk through the tax savings by income bracket, see contribution limits by employment type, and learn how to open an account at Rakuten Securities.