THIS MONTH AT THE TAX OFFICE (principal items only)
- Estimated income tax prepayment, 2nd installment due November 30
- Application to reduce estimated income tax prepayment due November 16
- Individual business tax, 2nd installment due on the date set by municipal ordinance in November
- Companies with a September fiscal year-end final returns for corporate tax & consumption tax due
- Companies with a March fiscal year-end interim returns for corporate tax & consumption tax due
A NOTE ON CASHLESS PAYMENT
As e-filing and cashless payment spread, it has become increasingly rare for the tax office to mail out a payment slip at all. Paying with a mailed slip at a bank counter also takes real time. Direct Pay, an automatic debit from your account, is one alternative, but you can also pay through online banking or at a convenience store. If you’d like help moving to a faster way of paying, just let the office know in advance.
Your Boss Is Still Doing the Tax Office’s Paperwork
A software flaw has everyone worried about hackers reaching their personal data online. The quieter privacy risk in Japan’s tax system isn’t online at all — and the real fix may arrive sooner than anyone expects.
November has arrived, and with it the paperwork that always seems to announce the season before any change in the weather does: the year-end tax adjustment, or nenmatsu chōsei 年末調整, notices that most Japanese employers received from their local tax office just last weekend. On paper, it’s simply the annual reconciliation of a year’s worth of payroll withholding. In practice, it’s closer to a condensed biography of every officer and employee on staff. A move, a marriage, a divorce, a birth, a child starting school — all of it, along with addresses, legal names, and dates of birth, has to be accounted for to get the number right. (Medical expense deductions and the furusato nōzei hometown-tax program are handled separately, through each person’s own return.) This is about as sensitive as personal data gets.
That happens to be a timely thing to say. A security flaw in PHP, the programming language running a meaningful share of the world’s websites, has set off something close to a panic this autumn, because personal data sitting online can be reached through exactly that kind of hole. It would be easy for a small company with no website at all to conclude this has nothing to do with them. It does. The personal data at risk in a yearend adjustment was never online to egin with — it sits in payroll files and withholding records — and if it reaches anyone other than the employee it belongs to, that is every bit as complete a breach as a hacked server. Whatever business holds that withholding information is carrying a genuinely heavy responsibility, offline as much as on.
Faced with that responsibility, plenty of business owners would simply rather not do it. Japan’s Income Tax Act doesn’t offer that option. Any employer paying wages is legally required to withhold tax and carry out the year-end reconciliation, and the law even attaches a penalty for failing to, rarely enforced but on the books. The obligation to pay sits with the employer, not the employee: even if a company fails to withhold properly, it still owes the withholding tax itself, regardless of whether the employee who received the pay went on to file a perfectly correct return of their own.
So the responsibility is clear. What’s asked less often is who pays for it. Not necessarily in yen — in time, in exposure, in the quiet cost of running the calculations correctly and keeping other people’s most private information secure. The answer, overwhelmingly, is that nearly every business in Japan performs this work unpaid, and carries the liability for it, inside an information economy that has grown considerably more complicated since the system was designed. It seems like a fair moment to ask whether that arrangement still makes sense.
There is a cleaner alternative, and it isn’t especially radical: keep monthly withholding exactly as it is — that part works, and businesses are well placed to run it mechanically — but hand the personal, year-end part of the reconciliation back to each individual, to settle through their own final return. This is close to how many other countries already do it. Japan has floated the idea before and backed away from it, mainly because some 60 million salaried employees would have had nowhere digital to go, and the National Tax Agency blanched at the thought of that many filings arriving at once. But the agency now has My Number, e-Tax, a smartphone in nearly everyone’s pocket, and increasingly capable AI tools to walk someone through a return they don’t understand. None of that makes it technically impossible anymore for every salaried worker to file their own. There’s an even further step already under discussion: the so-called pre-filled return, in which the government gathers a person’s salary and other data in advance and simply hands them a completed draft to check. Do that, and the cost of the calculation, along with the responsibility for keeping it confidential, shifts from the employer to the state.
Watching how the tax agency has been moving lately, I wouldn’t be surprised if that future arrives sooner than anyone expects.
