Plenty of people live away from their parents' home while sending money to support them. In fact, that remittance can make a parent eligible for the dependent deduction even while living apart — and if the parent is 70 or older, you get an income tax deduction of 480,000 yen (580,000 yen if you live together). What is more, the parent's income requirement keeps rising: from the 2026 (Reiwa 8) tax year it is total income of 620,000 yen or less (580,000 yen for 2025, 480,000 yen through 2024), extending eligibility to parents with pension income of 1.72 million yen or less (age 65 or older). On the other hand, the system is full of stumbling points: "Is handing over cash acceptable?" "How much should I send?" "If siblings share the remittances, whose dependent is the parent?" We sort it all out from primary sources — including the fact that the requirements for tax and for health insurance are completely different.
The big picture first: "tax dependency" and "health insurance dependency" are separate systems
"Putting a parent on my dependents" sounds like one thing, but dependency under tax law (the dependent deduction) and dependency under health insurance (dependent family member) have different legal bases, different requirements and different places to apply. You can also use just one of the two.
| Item | Tax dependency (dependent deduction) | Health insurance dependency (dependent family member) |
|---|---|---|
| Effect | Your income tax and resident tax go down | Your parent's health insurance premium becomes zero |
| Parent's income threshold | Total income of 620,000 yen or less (from the 2026 tax year; 580,000 yen for 2025) — for pension income: 1.72 million yen or less at age 65+, 1.22 million yen or less under 65 | Annual income under 1.3 million yen (under 1.8 million yen at age 60+) |
| Extra condition when living apart | "Sharing a livelihood" = remittances for living expenses etc. are made constantly | The parent's income must be less than the amount you send |
| Age limit | None (possible even at 75 or older) | Not possible at 75 or older (moves to the medical system for latter-stage elderly) |
| Where to apply | Year-end adjustment or tax return | Health insurance society, Kyokai Kenpo etc. via your employer |
This article focuses on the case of living apart. For the overall pros and cons including living together (effects on long-term care insurance premiums and high-cost medical expense benefits), see the pros and cons of making a parent your dependent; for the deduction system as a whole, see the complete guide to the dependent deduction.
Tax dependency (1): "sharing a livelihood" does not mean living together
One requirement of the dependent deduction is "sharing a livelihood" (seikei wo itsu ni suru). Under the National Tax Agency's definition, living together is not necessarily required. A relative who lives apart for reasons of work, schooling or medical treatment is still treated as "sharing a livelihood" if either of the following applies.
- Remittances for living expenses, school expenses, medical treatment and the like are made constantly
- The family customarily spends holidays together at the parent's home
In other words, even a parent living apart can meet the requirement if you continuously send money for living expenses. The key word is "constantly." A once-a-year lump of pocket money or small gifts when you visit home hardly amount to "sharing the resources of daily life"; what is required is a track record of monthly or otherwise regular remittances.
Is handing over cash not allowed?
Tax law has no rule saying "it must be a bank transfer." However, the National Tax Agency's Q&A on the dependent deduction for relatives living apart mentions checking documents that show the fact of remittance (transfer statements, bankbook records and the like) — and the practical problem is that cash handed over in person cannot be proven if the tax office asks. For health insurance, described below, transfer records and similar documents are mandatory attachments, so the safe approach is to consolidate your support into bank transfers and keep the records.
Tax dependency (2): how much is the deduction (larger at 70 or older)
The amount of the dependent deduction depends on the parent's age (as of December 31 of that year) and whether you live together.
| Category | Income tax deduction | Resident tax deduction |
|---|---|---|
| General dependent relative (parent under 70) | 380,000 yen | 330,000 yen |
| Elderly dependent relative (70 or older, living apart) | 480,000 yen | 380,000 yen |
| Elderly dependent relative (70 or older, co-resident parent etc.) | 580,000 yen | 450,000 yen |
For example, if a company employee in the 10% income tax bracket (annual salary of roughly 5–6 million yen) claims a 72-year-old mother living apart as a dependent, the guide figure is about 49,000 yen of income tax plus 38,000 yen of resident tax — roughly 87,000 yen a year in reduced taxes (approximate, including the special reconstruction income tax). For someone in the 20% bracket it comes to around 130,000 yen a year. If the parent holds a disability certificate or similar, the disability deduction (270,000–750,000 yen) may be added on top.
The requirement on the parent's side is total income of 620,000 yen or less (from the 2026 (Reiwa 8) tax year; 580,000 yen for 2025 and 480,000 yen through 2024)[National Tax Agency No.1180]. If the parent's only income is a public pension, eligibility extends to "pension income of 1.72 million yen or less at age 65 or older" and "1.22 million yen or less under 65." For a parent living on the national pension plus a small employees' pension, a great many cases should qualify. You can check your own situation with the dependency threshold simulator. For the basic terminology, see our glossary entry on the dependent deduction.
Stumbling points: how much to send? What if siblings share the support?
Tax law has no monetary threshold such as "at least X yen per month." But "sharing a livelihood" presupposes that your remittances actually support the parent's living expenses. If the parent gets by on their pension alone and you send a token few thousand yen a month for form's sake, there is a risk it will not be recognized as sharing a livelihood even though money is being sent. As a guide, the safe course is to send, every month without fail, an amount that continuously covers the shortfall in the parent's living expenses (in practice this often starts from a few tens of thousands of yen per month).
Even if a brother and a sister each send money, the same parent cannot be claimed as a dependent relative by two or more people. The National Tax Agency's Q&A makes clear that when several taxpayers support the same person, only one of them can take the dependent deduction. Who takes it can be decided by agreement among the siblings, so the household as a whole comes out ahead if the person with the highest income tax rate claims it. Talk it over before year-end adjustment season and decide who will claim (if both claim, the tax office will later inquire and one of you will have to amend).
- The parent's pension income exceeds 1.72 million yen (age 65 or older), or total income exceeds 620,000 yen due to rental income, salary or the like
- There is no substance to the remittances (verbal promises only, no records, one-off payments only)
- The parent is already claimed by someone else (e.g. the mother is claimed under the father's spousal deduction or dependent deduction)
Health insurance dependency: the hurdle is "remittance > parent's income"
If you are a company employee (insured under employees' health insurance), making a parent a dependent family member brings the parent's premium burden to zero. Parents can qualify even without living together, but the requirements for living apart are stricter than for tax.
| Requirement | Details |
|---|---|
| Parent's annual income | Under 1.3 million yen (under 1.8 million yen if 60 or older or disabled). Pensions (including survivors' and disability pensions), salary, unemployment benefits and the like all count as income |
| Extra requirement when living apart | The parent's income must be less than the amount of support (remittances) you provide |
| Proof of remittances | For bank transfers, attach a copy of the bankbook or transfer statements; for registered cash mail, a copy of the receipt. Cash handed over in person is in principle not accepted because no supporting document can be produced |
| Age limit | Not possible at 75 or older (everyone joins the medical system for latter-stage elderly) |
Watch out for what "less than the remittance amount" means. For example, if the parent's pension is 1.5 million yen a year (125,000 yen a month), they may clear the under-1.8-million-yen income threshold for age 60+, but unless you keep sending more than 125,000 yen a month, you cannot make them a dependent while living apart. That is a far higher hurdle than tax dependency. Conversely, if the parent's pension is around 60,000 yen a month, remittances of 70,000–80,000 yen a month leave room to meet the requirement.
Points to check before adding a parent to your health insurance
- The parent's out-of-pocket cap on medical costs (high-cost medical expense benefit) will then be determined by your income — if you are a high earner, this can work against the parent when large medical bills arrive. See the high-cost medical expense system and the pros and cons of making a parent your dependent for details
- Some health insurance societies set their own rules, such as "remittances must be monthly, no cash in person" or a set benchmark remittance amount. Always check the rules of the insurer you belong to
- National Health Insurance (for the self-employed etc.) has no concept of "dependents" at all. Only members of employer-based health insurance, Kyokai Kenpo and the like can register dependent family members. The whole mechanism is explained in health insurance dependency
Procedures: year-end adjustment, tax return, retroactive claims
- Claim through year-end adjustment (company employees): On the "Application for (Change in) Exemption for Dependents" you submit to your employer, fill in the parent's name, My Number, date of birth, address (living apart) and estimated income. For a parent living in Japan, no remittance documents need to be attached, but keep your transfer records in case of an inquiry. For how to fill in the forms overall, see the year-end adjustment guide
- Claim on your tax return (self-employed, or those who missed year-end adjustment): Enter the parent's information under "Matters concerning spouse and relatives" on Table 2 of the return, and write the deduction amount in the dependent deduction box on Table 1
- Claim past years retroactively: If you met the requirements but never claimed, a company employee who has not filed a tax return can file a refund claim going back 5 years from January 1 of the following year. For years you have already filed, you can recover the tax through a request for correction (in principle within 5 years of the statutory filing deadline). For an elderly dependent relative this can be around 80,000 yen per year — on the order of 400,000 yen over 5 years
As for resident tax, the content of your income tax filing is passed on to your municipality, so no separate procedure is generally needed (reflected from the following fiscal year).
Summary
- Even a parent living separately can qualify for the dependent deduction if you support their living costs with monthly remittances. For a parent aged 70 or older, the income tax deduction is ¥480,000.
- The parent's income requirement is total income of ¥620,000 or less (from the 2026 tax year). For pension income at age 65 or older, the limit is ¥1.72 million or less.
- Send remittances by bank transfer to keep a record. Even if siblings share the support, only one of them can claim the deduction.
- Health insurance dependent status is a separate system. The remittance amount must exceed the parent's income, and those aged 75 or older cannot be enrolled.
- For years you didn't claim it, you can go back up to five years and receive a refund.
References (sources)
* This article is general information based on the system as of August 2026. Deduction amounts and income thresholds may be revised. Detailed dependent criteria for health insurance vary by insurer (health insurance society, Kyokai Kenpo etc.); for individual decisions, consult the tax office, your insurer, or a professional such as a tax accountant.
