Leaving money to your children may sound simple. You save throughout your life, build a portfolio, and eventually pass what remains to the next generation.
But when a large portion of that wealth is held inside a traditional IRA, the inheritance may come with a tax bill that many families do not fully anticipate.
A traditional IRA is not just an asset. It is also a tax obligation waiting to be paid.
That matters because traditional IRA withdrawals are generally taxed as ordinary income. If children inherit a sizable IRA during their own peak earning years, those withdrawals may be stacked on top of salaries, bonuses, business income, or other earnings. In other words, the heirs may be forced to recognize taxable income at a time when they are already in a high tax bracket.
Consider a simple example. Imagine a retired couple in their late 60s with a $1 million traditional IRA. Their two adult children are doing well professionally and are in a higher federal tax bracket than their parents.
If the parents simply leave the IRA to their children, the children may eventually have to withdraw the inherited funds during their own high-income years. Under current rules, many non-spouse beneficiaries must fully distribute inherited retirement accounts within 10 years. If the children withdraw the inherited IRA while they are in a 35% federal tax bracket, a $1 million IRA could create roughly $350,000 in federal taxes, leaving about $650,000 after tax.
Now compare that with a different approach.
Instead of waiting, the parents could intentionally withdraw IRA money during retirement, while they are in a lower tax bracket. If they withdraw that same $1 million over time at a 22% federal tax rate, they may pay about $220,000 in federal taxes, leaving roughly $780,000 available to give to children or grandchildren.
Same IRA. Same family. Very different result.
By shifting taxable IRA income from higher-bracket children to lower-bracket parents, the family may preserve an additional $130,000 in this simplified example. That is the basic idea behind IRA bracket arbitrage: recognizing taxable income at a lower rate today rather than leaving heirs to recognize it at a higher rate later.
The after-tax dollars can then be transferred in several ways. Parents may use annual exclusion gifts to give gradually during life. They may help with a home down payment, contribute to a grandchild’s 529 college savings plan, or, in some cases, pay certain education or medical expenses directly to the institution or provider.
Another option is a Roth conversion. Instead of gifting the money immediately, parents may convert portions of a traditional IRA to a Roth IRA during lower-income retirement years. They still pay tax now, but potentially at a lower rate, while reducing the size of the future taxable IRA and leaving heirs a more tax-efficient asset.
Of course, this strategy is not automatic. Parents should never give away money they may need for their own retirement. Extra IRA withdrawals can also affect Medicare premiums, Social Security taxation, state taxes, and the broader financial plan.
Family dynamics matter, too. Should each child receive the same amount? Should gifts be based on need? Should grandchildren be included? Should the estate plan be updated to reflect lifetime gifts?
These are not just tax questions. They are planning questions.
For some families, preserving assets and passing them through an estate plan may still be the right answer. But for others, especially when a large traditional IRA is involved, waiting may be more expensive than they realize.
Sometimes the question is not just, “What will our children inherit?”
It is, “Who will pay the tax bill — and at what rate?”