Stop Losing Money on Your Year-End Tax Adjustment

Just ticking 'dependents' on your tax form? You're probably losing hundreds of dollars.

What's the problem?

Around November, your company hands you that 'Year-End Tax Adjustment' form. You send money to your parents or siblings back home, so you write down the number of dependents and hand it in, thinking your taxes will go down. I did this for my first two years in Japan.

But when I checked my pay stubs, my taxes hadn't changed at all. I thought it was weird but figured, well, maybe this is just how it is. It turns out I was losing out on thousands of yen every single year. The tax office won't just accept your claim without proof.

Why does this happen?

The rules got a lot stricter a few years back. Apparently it used to be easier, but now the responsibility is on us to prove we're actually supporting these family members.

It makes sense when you think about it; they're just trying to prevent fraud. So you need to prove two things, and you need both: 1) "Is this person really your relative?" and 2) "Did you actually send this person money?" One without the other is useless.

So, what do you actually do?

You need two types of documents to submit to your company every year: "Proof of Kinship" and "Proof of Remittance."

"Proof of Kinship" is something like a birth certificate or family registry from your home country. You'll also need to attach a simple Japanese translation. The good news is, you really only have to prepare this once and can reuse it in the following years.

The tricky part is the "Proof of Remittance." You need proof that you sent money *that year* for *each dependent* you're claiming. This can be your bank's overseas transfer receipts or even credit card statements if your family uses a card that you pay for. The key is to save these documents every time you make a transfer.

I know, collecting these papers is a bit of a pain. But depending on your salary and how many people you support, you could get back anywhere from ¥50,000 to ¥100,000 a year between income and residence tax. Once you figure it out the first time, it's just a yearly routine. It's worth the effort. ☕