Observed arrival · 2026-10-15
そのままシリーズ: Back-office calculators
A Japanese-language directory of free calculators and practical checks for accounting and back-office work.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Japanese accounting and back-office staff
- Worth noticing
- The site says its reference results follow general criteria based on applicable laws and National Tax Agency circulars.
Field notes
The homepage groups its tools under tax calculations, document checks, deduction decisions, and practical guidance. Examples include deriving pre-tax interest from a net deposit, checking invoice requirements, calculating contract cancellation deadlines, and finding postal-address information. It also offers a request form for missing tools; the page directs users to a tax professional or tax office for case-specific decisions.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue