I make $400k and am an avid saver for retirement – when do I stop flooding Roth accounts and focus on my tax deferred ones?

Planning for retirement is something everyone, regardless of income, needs to take seriously, but for high-income individuals, it really is a case of “mo’ money, mo’ problems.”

The reason is the wealthy have more options available to them to shield their income and position themselves for a more comfortable retirement.

This issue was brought to light by a Redditor on the r/chubbyFIRE subreddit who is 30 years old and is looking for early retirement at 40. With gross household income of $400,000, he has a mix of pre-tax accounts and real estate that generates about $1,800 a month in passive income, but is expected to grow over time. His net worth is about $1 million currently with the expectation to be $4 million at retirement.

The Redditor wants to know when to stop flowing money into his Roth accounts and start focusing on his tax-deferred accounts that will create a bridge of income for him when he retires until he turns 59-1/2 and can start withdrawing money from his Roth IRAs.

The Rich Are Very Different From You and Me

While everyone is familiar with a Roth IRA with its contribution limits of $7,500 a year in 2026, as I mentioned at the start, high-income individuals have more options. The Redditor, because he is a sole proprietor and his business is organized as an S-corporation, has available to him what is known as a Solo 401(k)—also known as an individual 401(k)—which has $230,000 in it. It allows for him to contribute as much as $72,000 a year into the account for 2026.

Moreover, he is able to take advantage of regulations that allow for what is known as a mega backdoor Roth strategy. This setup allows for employee after-tax contributions to be made up to the maximum annual addition limit, which can then be converted into his Roth Solo 401(k) or a Roth IRA.

I’m not a financial planner or tax professional, so these are only my opinions, but you have to be careful with such strategies because there are complex tax consequences involved. It is why you need to talk with professionals in the field because they can best guide you on how to avoid or minimize any taxes due.

The Tax Arbitrage of ChubbyFIRE

When earning a $400,000 income, flooding Roth accounts means paying a heavy marginal tax rate today—potentially 32% or 35% at the federal level—on every dollar saved. Shifting to tax-deferred accounts creates an immediate tax arbitrage opportunity. By taking the tax deduction now, a high earner shields income at their highest career bracket. In early retirement, with zero wage income, they can withdraw those tax-deferred dollars to fill the 0% standard deduction bracket, followed by the lower 10% and 12% brackets, capturing a massive tax savings spread.

S-Corp Salary vs. Savings Optimization

Operating as an S-corporation adds another strategic layer to this choice. To maximize traditional Solo 401(k) pre-tax employer contributions, the owner can contribute up to 25% of their W-2 salary as a non-elective contribution, alongside the employee deferral limit. Opting for the Mega Backdoor Roth means keeping W-2 wages high and paying corporate payroll taxes (FICA) on distributions just to secure tax-free growth. Shifting to tax-deferred savings allows the owner to optimize their W-2 salary structure, reducing immediate payroll and personal income tax liabilities simultaneously.

Timing the Correct Moves & The Roth Ladder

Broadly speaking, the Redditor should look to pivot toward traditional, tax-deferred accounts to execute a clean Roth conversion ladder. This strategy involves rolling traditional 401(k) funds into a Traditional IRA after leaving work, then systematically converting precise amounts to a Roth IRA each year during early retirement to minimize the tax hit.

Because these converted funds require a five-year holding period before they can be withdrawn penalty-free, an early retiree needs an immediate bridge. This is where the user’s $1,800 per month in real estate passive income and existing taxable brokerage accounts become crucial, serving as the primary cash flow engine during the initial five-year waiting period while the first rungs of the conversion ladder mature.

A common rule of thumb suggests initiating this shift toward tax-deferred accounts around age 35, or once Roth balances hit roughly $500,000. This timeline provides a long enough runway to compound tax-free Roth growth while establishing a substantial pre-tax base to manipulate tax brackets later.

Key Takeaway

Having more money does make life a bit easier, but it also raises a host of questions and a new set of problems that those with lower incomes won’t ever face.

Mae West is reported to have said, “I’ve been rich and I’ve been poor, and rich is better.” It is also more complicated. Navigating the complex labyrinth of the tax code is not for the faint of heart. Assembling a competent team of financial planners, tax professionals, and even lawyers is essential to avoid the pitfalls of having mo’ money.

Editor’s Note: This article has been updated to reflect the 2026 IRS contribution thresholds, including the $7,500 IRA limit and the $72,000 Solo 401(k) annual addition limit. New analytical sections have been added to detail the tax arbitrage benefits of filling lower brackets during early retirement, the impact of S-corporation salary structures on retirement contributions, and the exact operational timeline of a five-year Roth conversion ladder utilizing real estate cash flow as a temporary bridge. Technical naming conventions surrounding Solo 401(k) accounts and Mega Backdoor Roth mechanisms have also been corrected throughout the text.