Coordinating Your Traditional, Roth, and Non-Qualified Investments
Most people think about their investments one account at a time. Their TSP here. Their brokerage account there. Maybe a Roth IRA on the side. Each account gets evaluated on its own merits, managed in its own lane, and ignored in relation to the others.
That’s a mistake. A potentially expensive one as we will illustrate below.
True investment optimization requires you to zoom out and see all your accounts together, with an awareness of each account’s taxation (which I explain in the footnote below1) and growth orientation (ie. Aggressive vs Conservative). Understanding how each one works, and how they interact, is the difference between a good portfolio and a great one.
1.Here’s a brief description of the taxation of your various accounts:
Traditional (Pre-Tax) Accounts Your Traditional TSP and traditional IRA let you contribute pre-tax dollars. This allows you to lower your taxable income now, meaning you pay less tax today, but in the future when you withdraw it in retirement you will pay tax on and everything - contributions and growth – at ordinary income rates.
Roth (Post-Tax) Accounts Your Roth TSP and Roth IRA are funded with after-tax dollars. There’s no upfront tax break, but the withdrawals in retirement are completely tax-free. That means you pay zero tax on any growth in your Roth.
Non-Qualified (Taxable) Accounts With non-qualified accounts you pay ordinary income taxes on contributions now (like a Roth), and you also pay taxes on gains (unlike a Roth). But the tax on the gains depends on the type of gain:
- Short-term capital gains (meaning, gains that were realized in less than a year) are taxed similar to ordinary income.
- Long-term capital gains (meaning, gains that were realized after a year) are taxed more favorably at long-term capital gains rates – usually between 0% - 15% for most investors. This is a significantly lower rate than what you’d pay on Traditional withdrawals.
- Bond interest is taxed as ordinary income.
- An unrealized gain left to an heir has 0% tax (like a Roth), because of the stepped-up cost basis at death.
- Capital Losses can be realized, and used to offset gains and income (with some limits).
What goes wrong when accounts aren’t coordinated
Real damage happens when people treat their accounts as separate universes instead of one connected portfolio. Here’s what that costs them:
1. Over-taxation on the gains in your stocks.
When stocks grow inside a Traditional account like your TSP, all those gains eventually get taxed as ordinary income — even though they would have qualified for lower capital gains rates in a non-qualified account, or no tax at all in a Roth.
2. Unnecessary taxation of bond interest.
Bonds generate interest payments whether you need the income or not. In a non-qualified account, that interest is taxable every year. In a TSP, it isn’t taxed until you actually take a distribution.
3. Required Minimum Distributions (RMDs) from a volatile account.
Your Traditional TSP requires RMDs. Your Roth and Non-qualified account do not. If your TSP is loaded with volatile stock holdings, you could be forced to withdraw money at exactly the wrong time — right after a market drop. Bonds are more stable, making them better-suited to sit in an account that mandates distributions.
4. Lost capital loss harvesting.
When investments lose value in a non-qualified account, you can use those losses to offset gains elsewhere or reduce your taxable income. That’s not possible inside a Roth or Traditional.
5. Missed step-up in basis for heirs.
If you hold stock in your non-qualified account and leave it to your family when you die, they receive it with a stepped-up basis — meaning all the gains accumulated during your lifetime are forgiven. That benefit doesn’t exist inside a Traditional TSP or IRA.
Client example #1: $1 million uncoordinated, fixed with a simple switcheroo
An illustration may help.
A prospective client came in for a consultation with about $1 million in investments: $500,000 in her TSP and $500,000 in a non-qualified brokerage account. Each account was invested 50% stocks and 50% bonds. Looks well-balanced, right?
Not quite.
The stock holdings inside her TSP were a problem. When those stocks grew over time, all those gains would eventually be taxed as ordinary income - not at the lower capital gains rate they would have earned in her non-qualified account. Meanwhile, the bonds in her non-qualified account were generating taxable interest income every year that she wasn’t even using.
The fix was a simple switcheroo:
- Move the stocks from the TSP to the non-qualified account.
- Move the bonds from the non-qualified account into the TSP.
Her overall portfolio stays exactly the same - still 50% stocks, 50% bonds, still $1 million. But now the stocks are where they can benefit from capital gains tax treatment, and the bonds are sheltered from annual interest taxation inside the TSP.
Before this change, $250,000 of her non-qualified account was being taxed more than necessary. She hadn’t made a single bad investment decision. She’d just never looked at both accounts at the same time.
Also, but implementing this switcheroo, she also was positioned to get the other benefits we described above:
- Stepped up basis to her heirs, now that her stock was in her Non-qualified account.
- Can harvest capital losses, now that her stock was in her Non-qualified account.
- RMDs would come from her stabilized Traditional TSP – not the volatile stock, now that her stock was in her Non-qualified account.
Client example #2: $1.5 million across three accounts, fixed with a smarter switcheroo
Here’s an expanded illustration involving all three types of accounts.
A second client came in with $1.5 million spread across three accounts: $750,000 in a Traditional TSP, $375,000 in a Roth TSP, and $375,000 in a non-qualified brokerage account. Every account was invested the same way - 50% stocks and 50% bonds. Balanced across the board. Looks solid, right?
Not quite.
The stocks in the Traditional TSP were the first problem. The most growth-oriented asset class in the portfolio was locked inside the account with the worst tax treatment for gains. All that growth - years of compounding gains - would eventually be taxed as ordinary income upon withdrawal.
The bonds in the Roth and non-qualified accounts were the second problem. Roth favors growth. There is 0% tax on all the growth in your Roth. Bonds are not as growth oriented as stock. If you’re going to have bonds in your portfolio and have to choose which account to place those bonds, the Roth would be your last choice!
And bonds sitting in the non-qualified account were generating taxable interest income every year that he wasn't even using.
The fix was a slightly-more-sophisticated switcheroo:
- Move the $375,000 in stocks out of the Traditional TSP and into the Roth and non-qualified accounts — $187,500 into each.
- Move the $187,500 in bonds out of the Roth and the $187,500 in bonds out of the non-qualified account into the Traditional TSP.
His overall portfolio stays exactly the same — still $1.5 million, still 50% stocks and 50% bonds. But now the Traditional TSP holds 100% bonds, and the Roth and non-qualified accounts each hold 100% stocks.
But now the stocks are where their gains can benefit from either 0% tax (Roth) or lower capital gains tax (non-qualified), and the bonds are sheltered from annual interest taxation inside the TSP.
Also, by implementing this switcheroo, he also was positioned to get the other benefits we described above:
- Stepped up basis to his heirs, now that his Non-qualified account was entirely growth oriented.
- Can harvest capital losses, now that his Non-qualified account was entirely growth oriented.
- RMDs would come from his stabilized, bond-filled Traditional TSP – not the volatile stock, which was moved out of the Traditional TSP into Roth and Non-qualified.
After the switcheroo, each asset class is in the right home. Stocks are sitting in accounts where gains get favorable tax treatment and there's no forced selling during downturns. Bonds are in the Traditional TSP, where their modest, predictable growth is sheltered until withdrawal, and where their stability makes mandatory distributions far less stressful.
Where stocks belong (and where they don’t)
With the above in mind, we can actually argue that if your portfolio contains a mix of stocks and bonds2, the stocks are best held in Roth and non-qualified accounts — not in a Traditional account like your TSP.
2.If your portfolio is entirely stock, or entirely bonds, then this argument doesn’t apply to you.
Why? Because stocks are where the big gains, and big losses, happen. And Roth and non-qualified accounts are simply better equipped to handle both.
Let’s explain.
The tax treatment on gains is superior in the Roth and Non-Qualified than in the Tradtional.
In a Traditional account, every dollar you withdraw is taxed as ordinary income. In a Roth, qualified withdrawals are 0% tax. In a non-qualified account, long-term gains are taxed at the lower capital gains rate, which for many people is also 0% or 15%.
The Non-Qualified also gives your heirs the step-up in basis, meaning they inherit them with no tax owed on any of the gains you built up during your lifetime. That’s effectively 0%, similar to the Roth.
Historically, stock growth has significantly outpaced bond growth. If your Roth offers you 0% tax on your growth, what kind of growth do you want in your Roth? Would you want small growth like bonds, or would you like large growth like stock? Obviously, the large stock growth will be ideal for the Roth.
Same argument is true of the growth in Non-Qualified accounts. It’s not 0% tax, but it’s still a lower rate of taxation than the Traditional. As such, you’d want growth in your Non-Qualified to enjoy the lower Long Term Capital gains tax rate.
Putting stocks in a Traditional account means subjecting all of that growth to ordinary income tax rates — the worst possible tax treatment for the best-performing part of your portfolio.
No RMDs means a higher tolerance for volatility.
Stocks are volatile. Their value swings up and down, and that’s fine — as long as you’re not forced to sell at the wrong time. Traditional accounts (including your TSP) require RMDs starting at a certain age3. That means you must take money out on a fixed schedule, whether the market is up or down. If your stocks are in your Traditional TSP and the market drops 30%, you still have to take that distribution. You’re selling low and, as such, your investments will be denied the time to recover from a market downturn.
3.If you were born 1960 or later, your RMD age is 75. If you were born before 1960, you RMD age is 73.
Roth accounts and non-qualified accounts have no such requirement. You can let those holdings sit through a downturn and recover before you touch them.
Non-qualified accounts turn volatility into a tax tool.
There’s one more reason stocks specifically belong in a non-qualified account: tax loss harvesting. When a stock position drops in value, you can sell it, realize the loss, and use that loss to offset capital gains or reduce your taxable income.
This only works with assets that actually move — meaning stocks, not bonds. Stocks are prone to losses. Bonds - not so much. So putting stocks in a non-qualified account doesn’t just give you better tax treatment on the gains - it also gives you a tax benefit on the losses.
To summarize the argument:
- Stocks in a Roth: gains are 0% tax, no RMDs, full flexibility to ride out downturns.
- Stocks in a non-qualified account: long-term capital gains rates (potentially 0%), step-up in basis for heirs, no RMDs, and tax loss harvesting on bad years.
- Stocks in a Traditional account: all gains taxed as ordinary income, subject to mandatory distributions, no loss harvesting. The worst of all three options.
Account comparison at a glance
The table below summarizes the tax implications for you, and tax implications for your heirs, tax implications if your investments lose money, as well as considerations for mandatory withdrawals and sensitivity for early-access penalties.
| Traditional | Roth | Non-Qualified | |
|---|---|---|---|
| TSP / IRA | TSP / IRA | Brokerage account | |
| Tax treatment of gains | Ordinary incomeAll withdrawals taxed at your top income bracket | 0% — tax freeAll qualified withdrawals completely tax free | Long-term cap gains0–20% rate, well below ordinary income |
| Tax treatment for heirs | Fully taxableHeirs pay ordinary income tax, and must be liquidated within 10 years | Tax freeHeirs inherit with no income tax owed on distributions | Step-up in basisLifetime gains reset at death — heirs owe 0% on your growth |
| Capital loss harvesting | Not availableLosses cannot offset any gains or taxable income | Not availableLosses cannot offset any gains or taxable income | AvailableRealized losses offset gains and can reduce taxable income |
| Mandatory distributions — tolerance for volatility | RMDs requiredMust withdraw on schedule — low tolerance for volatility | No RMDsHold through downturns — high tolerance for volatility | No RMDsHold through downturns — high tolerance for volatility |
| Penalty-free age of access | Age 59½10% penalty on early withdrawals before 59½ | Age 59½10% penalty on early withdrawals of earnings before 59½ | Any ageNo age restriction or early withdrawal penalty |
Other assets count too
Coordination isn’t just about your TSP and brokerage account. Your full financial picture matters:
- Cash in your bank account — If you’re sitting on significant cash reserves, you may not need any G-Fund exposure in your TSP. Holding both creates unnecessary drag on your portfolio’s growth potential.
- Home equity — If you’re planning to sell your house and access a large chunk of equity in the near future, you may need less bond exposure in your TSP than you think.
- Pension or annuity income — Guaranteed lifetime income changes your risk tolerance. If you already have a stable income stream in retirement, you can afford to be more aggressive with your non-guaranteed investments.
The bottom line
Each of your accounts — Traditional, Roth, and Non-Qualified — has its own tax rules, its own strengths, and its own limitations. If you if you don’t know which assets belong in which account, or how they interact with each other – meaning, if you don’t coordinate them - you’re likely being over-taxed and creating investment inefficiencies. The goal isn’t to have three good accounts. The goal is to have one great financial picture.
