Web app · Finance
Furuwaku
Finish the furusato nozei year exactly at your limit — with every form mailed
Estimate your donation ceiling with a deliberately safe band, log every donation from every portal in one ledger, and work the one-stop exception checklist against the hard January 10 must-arrive deadline. Free, offline, no account.
Stored in your browser only. Nothing you do in the web version is sent to our servers. Clear your browser data and it's gone — so export a backup from the in-app menu if you want to keep it.
In your browser
What you can do in Furuwaku on the web
Limit estimator with a safe band
Salary, spouse, dependents, social insurance and iDeCo run through the standard resident-tax formula to produce a standard ceiling and a conservative 85% band.
One ledger above every portal
Rakuten, Furusato Choice, Satofull, Furunavi and Amazon each remember only their own orders — log them all here, grouped by municipality and filterable by portal and year.
One-stop paperwork checklists
Form received, filled, ID copies attached, mailed, arrival confirmed — per donation, with the January 10 deadline and the days remaining on every card.
Five-municipality warning
A five-dot gauge that turns amber at the cap and red past it, because a sixth town silently kills one-stop for the whole year.
Year-end allowance ring
Yen remaining against your estimated ceiling, countdowns to December 31 and January 10, and every donation whose paperwork is unfinished.
Return-gift log
What arrived, what it cost in allowance and your own notes — so you never re-order a dud, and always re-order the good one.
Screens
Every screen, rebuilt for the browser
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1
Allowance dashboard
The ring of allowance used vs remaining, both deadline countdowns, the five-town status and every donation with unfinished paperwork.
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2
Donation & checklist
One donation's municipality, amount, portal and return gift, with its one-stop or tax-return checklist and the deadline in days.
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3
Limit estimator
Your estimated ceiling and safe band, what you have donated against them, and every line of the calculation.
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4
Donation ledger
Every donation for the year, grouped by town or listed flat, with a monthly bar chart and a portal filter.
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5
Log a donation
Amount, municipality, prefecture, portal, date and the return gift you chose.
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6
Paperwork
One-stop or tax-return mode, the five-municipality gauge, and every checklist split into in-progress and done.
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7
Income details
Gross salary, spouse, dependents, social insurance, iDeCo and other deductions.
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8
Return gifts
Every gift you have chosen, by year, with your notes for next season.
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9
Settings
Filing method, income details, working year, CSV export, backup, sample data and erase.
Try it with sample data: Loads a ¥8.4M-salary profile (spouse, one dependent, iDeCo) and nine donations across Monbetsu, Miyakonojo, Yaizu, Izumisano and Kamimine on five different portals — with paperwork at every stage from untouched to fully confirmed. You can start fresh at any time.
Ready? It's free.
Sign in once and every All Things AI web app opens instantly. No install, no subscription, no data leaving your browser.
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Questions
Is the web version of Furuwaku free?+
Yes. Sign in with a free All Things AI account and use every screen — no subscription, no in-app purchases.
Where is my data stored?+
Only in this browser's local storage. Nothing you enter is sent to our servers, so we can't see it, back it up, or restore it. Clearing site data, a private window, or another device starts empty. Export a backup from the in-app menu to keep it.
Do I need an account?+
You can read about the app without one, but you must sign in to open it. Sign-in is free and takes a few seconds with Google.
How is the web version different from the Furuwaku iPhone app?+
The ceiling is a simplified standard resident-tax estimate: mortgage credits, side income and exact insurance figures can shift the real limit, which is why the safe band exists. No push notifications — the December 31 and January 10 countdowns live on the home screen instead of your lock screen. Furuwaku is portal-neutral by design: it never connects to Rakuten or Furusato Choice, so donations are typed in rather than imported.