iDeCo Enrollment Rate Stuck Below 10% — 5ch: ‘It’s Just a Tax Deferral Scheme’

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The story

It has come to light that the enrollment rate for the individual-type Defined Contribution Pension Plan (iDeCo) remains below 10%. Compared to NISA, iDeCo’s tax-advantage structure is harder to understand, and the fact that funds generally can’t be withdrawn until age 60 reportedly makes financial institutions reluctant to actively promote it. A system reform is also planned for December. On 5ch, while some pointed out that it’s “just a tax deferral scheme,” others argued that depending on how you take the payout it can end up tax-free, and that people should max out both NISA and iDeCo together — opinions were split on which to prioritize.

The individual-type Defined Contribution Pension Plan (iDeCo) hasn’t caught on nearly as much as the Nippon Individual Savings Account (NISA). Its tax-advantage structure is complicated, and many financial institutions are notably reluctant to court iDeCo customers. The enrollment rate is below 10%. Will December’s system reform be the spark that boosts its popularity?

A 25-year-old female office worker living in Tokyo started investing about five years ago. She considered iDeCo but chose NISA instead — the deciding factor was that NISA lets you withdraw your money anytime.

NISA, she says, is good for “a sudden illness or a move…”

Source: nikkei.com / Read the original article here

What people said

12AnonymousNov 15, 2026 20:47
You get back about two months' worth in your year-end tax adjustment, so it's totally worth doing.
14AnonymousNov 15, 2026 20:49
Re: #12
Lol, the secret's out — it's just a tax deferral scheme.
35AnonymousNov 15, 2026 20:58
If you die before retirement, doesn't that just mean the money sat in the national treasury the whole time you were working?
42AnonymousNov 15, 2026 20:59
Re: #35
No, it goes to your surviving family as an inheritance.
48AnonymousNov 15, 2026 21:00
Though in an age of inflation, you might honestly be better off putting that money into physical assets like copper instead.
51AnonymousNov 15, 2026 21:02
Re: #48
You can pick S&P funds too — I chose the S&P back around 2008 and just left it alone, and it's grown a ton since then.
49AnonymousNov 15, 2026 21:01
What happens if the bubble pops and share prices crash all the way down to 3,000 yen?
57AnonymousNov 15, 2026 21:04
Isn't this just going to let people who already have financial breathing room pile up even more of a cushion?
209AnonymousNov 15, 2026 21:55
Re: #57
Yeah, it just widens the wealth gap.
59AnonymousNov 15, 2026 21:04
People who find iDeCo too complicated probably have lower incomes to begin with, so forcing themselves into it might not do much good anyway.
210AnonymousNov 15, 2026 21:56
Re: #59
That's exactly why they go around desperately trashing it — they want more poor, miserable company.
62AnonymousNov 15, 2026 21:05
I started with Tsumitate NISA (installment NISA) first, then moved on to iDeCo, and realized iDeCo is actually the better deal. Planning to raise my iDeCo contributions next year.
77AnonymousNov 15, 2026 21:08
Re: #62
How exactly is it better? (´・ω・`)
74AnonymousNov 15, 2026 21:07
Max out NISA first — I think iDeCo can wait until middle age.
85AnonymousNov 15, 2026 21:10
Re: #74
With iDeCo, the deduction you get at payout depends on how many years you've been enrolled, so it's worth starting early even at the minimum contribution.
75AnonymousNov 15, 2026 21:07
If they announced a tax on NISA, you could still find some way to dodge it, but if they announced a tax on iDeCo, there'd be no escape, right? (your money's locked up until 60)
80AnonymousNov 15, 2026 21:08
If you're self-employed, fair enough, but if you're a regular employee, isn't it better to fill up NISA first and then go all-in on iDeCo for tax savings once you've got room to spare?
87AnonymousNov 15, 2026 21:10
Re: #80
Just max out both.
90AnonymousNov 15, 2026 21:11
Even just 5,000 yen a month is fine, just to start banking that deduction period.
95AnonymousNov 15, 2026 21:13
Re: #90
Securing the enrollment period really matters — you can't go back and make up for lost time.
93AnonymousNov 15, 2026 21:13
Isn't it true that depending on how you take the payout, you might not owe any tax at all?
99AnonymousNov 15, 2026 21:15
Re: #93
If you're not getting a severance/retirement payout, then as long as you stay within that deduction limit, you won't be taxed.
101AnonymousNov 15, 2026 21:15
Employees' Pension Insurance (Kosei Nenkin) is seriously such a waste of money.
116AnonymousNov 15, 2026 21:20
Re: #101
For people who actually have their act together, they should honestly scrap the employee pension system. Let them invest that money in stocks themselves instead — having people think about asset management while they're still working would definitely turn out better.
121AnonymousNov 15, 2026 21:23
Re: #116
If you did that, the portion companies have been paying in could just vanish. Companies only pay it because it's mandatory — under labor contracts, it's not treated as wages.
102AnonymousNov 15, 2026 21:15
Don't push yourself when you're already on low wages — you'll starve to death before you even reach old age.
112AnonymousNov 15, 2026 21:19
Re: #102
These days young people's dream is a comfortable, carefree retirement in a nursing home.
122AnonymousNov 15, 2026 21:23
If it lowered my social insurance premiums I wouldn't mind doing iDeCo, but NISA is plenty for me.
125AnonymousNov 15, 2026 21:24
Re: #122
Oops, I messed that up, my bad.
123AnonymousNov 15, 2026 21:23
Under my company's plan I can only put 20,000 yen a month into iDeCo, but I'm already sitting on close to 2 million yen in gains. Add the tax-reduction benefits on top of that, and it's actually a pretty sweet deal.
127AnonymousNov 15, 2026 21:25
Re: #123
That tax break only applies while you're earning your salary — when you withdraw it in old age, you'll get hit with income tax.
126AnonymousNov 15, 2026 21:24
Feels like there's not much point doing this unless you're self-employed…
128AnonymousNov 15, 2026 21:25
Re: #126
I think it's better to just leave it stacked in the pension fund.
137AnonymousNov 15, 2026 21:28
Re: #128
Since it's counted as pension income, it gets combined with your other pensions and bumps up your taxable income, so you end up losing a big chunk to social insurance premiums.
138AnonymousNov 15, 2026 21:29
Re: #128
At this rate, I think the pension fund is going to lose out to inflation.
164AnonymousNov 15, 2026 21:36
I do both NISA and iDeCo, but…

iDeCo is a hassle since you have to push the paperwork through your company, and because of the company's own in-house savings plan, the contribution limit usually ends up being only around 12,000 yen — so a lot of people probably decide it's not worth the effort.

Then again, most people probably don't have enough spare salary left to even get that far, lol.
166AnonymousNov 15, 2026 21:37
Re: #164
Since last December, company paperwork isn't required anymore.
180AnonymousNov 15, 2026 21:43
Re: #164
I'm self-employed, so I do both NISA and iDeCo — NISA is just for growth stocks, and the installment investing goes through iDeCo.

Background and Key Points of This Discussion

iDeCo is a “deferral-type” system: contributions made while enrolled are fully deductible from taxable income, but withdrawals can still be taxed even after applying the retirement income deduction or pension deduction — which is why the thread saw comments like “isn’t this just a tax deferral?” Still, it isn’t simply deferred tax: on top of lowering income and resident tax while you’re working, the deduction available at payout tends to work in favor of people with little or no severance pay, a point that’s easy to overlook. Unlike NISA, the restriction that funds generally can’t be withdrawn until age 60 is considered the biggest reason people avoid enrolling, and that lines up with the thread’s comments about the simplified company paperwork introduced in the system reform at the end of 2024. That said, topics like the merits of the employee pension system or the widening wealth gap are really a separate issue from iDeCo’s low enrollment rate, and tend to drift from the article’s main theme — the system being hard to understand — which is worth keeping in mind.

※This article is compiled and summarized from the 5ch (News Speed+) thread “iDeCo Enrollment Rate Below 10% — Harder to Understand Than NISA, Shunned by Financial Institutions.”

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