High-Income Years Are Your Best Tax Planning Opportunity

Here is a scenario that plays out in many households: Someone has a high-income year. Maybe they received a bonus. Maybe they exercised stock options. Maybe their business had an exceptional year. Maybe they had an unusually large investment gain. Their income for that year is significantly higher than normal. They pay taxes on it, and then — usually without much deliberation — they move on. That would be a mistake. A high-income year is actually a planning gift. It is a time-limited opportunity to do things that you normally cannot do, or that normally do not make sense. Understanding these opportunities and acting on them can save you substantial taxes in future years.

The Backdoor Roth Conversion This is the most common strategy, and it is particularly valuable in a high-income year. If your income is too high to directly contribute to a Roth IRA (income limits apply), you might be unable to use a Roth in other years. But in a high-income year, you are already paying high taxes. Executing a backdoor Roth — contributing to a traditional IRA and then immediately converting it to a Roth — lets you get money into a Roth even though your income is high. You will pay taxes on the conversion (though if you have low-basis traditional IRA money, there is a pro-rata rule that can complicate this), but you are essentially paying those taxes at your current high rate to lock in tax-free growth going forward. In lower-income years after you retire, you cannot do a backdoor Roth effectively because your income is already lower. But in a high-income year, the tax cost is not incremental — you are paying high taxes anyway. Might as well get the Roth contribution in.

Mega Backdoor Roth Through Your Employer Plan If your employer offers a 401(k) or similar plan with 'after-tax' contribution space (in addition to regular pre-tax and Roth contributions), you may be able to do a 'mega backdoor Roth.' This allows you to contribute substantially more to Roth accounts than you normally could. The specific limits depend on your plan, but you might be able to contribute tens of thousands more. Again, this is most attractive when your income is already high and you will be paying taxes anyway. You are converting dollars you would pay taxes on into tax-free Roth dollars. It is a direct swap, but it locks in the tax-free growth benefit for later years.

Charitable Giving Strategies If you are charitably inclined, a high-income year is the time to accelerate your giving. A Donor Advised Fund (DAF) allows you to make a charitable contribution in a high-income year, get the tax deduction immediately, and then recommend grants from the fund to charities over time. This is useful if you want to be generous in a year when you have extra income, but you do not have specific charities you want to support at that moment. You can fund the DAF, get the deduction in the high-income year, and then distribute to charities whenever you decide. For very high-income individuals, a charitable remainder trust or private foundation might also make sense, though these are more complex and costly to set up.

Tax-Loss Harvesting With Discipline High-income years are also good times to be disciplined about tax-loss harvesting. If you have investments with unrealized losses, selling them realizes the losses, which can offset other income. In a high-income year, having tax losses available is valuable. You can harvest those losses and use them to reduce your taxable income. Outside of a high-income year, the loss might be less valuable (you are already in a lower bracket, so the deduction is worth less). Strategically timing harvests to high-income years makes the most of them.

Deferral Strategies Sometimes a high-income year is a good time to voluntarily defer compensation if your employer allows it. If you are expecting an unusually high bonus or commission, you might request to defer receipt to the next year, lowering your current-year income. This is the opposite of what you might do in other years. You would do this only if you expect your income to be significantly lower the next year. But if you know that you are having an unusually high year and will have lower income the next year, deferring some income makes sense.

Equipment Purchases and Business Deductions If you are self-employed or have a business, a high-income year might be a good time to purchase equipment, fund retirement plans more aggressively, or make other business investments. These have tax deductions that reduce taxable income. In a high-income year, those deductions are worth more (they offset higher-bracket income). This has to make business sense — you should not buy equipment you do not need just for the deduction — but if you were planning an equipment purchase anyway, executing it in a high-income year amplifies the tax benefit.

Roth Conversions (General) Beyond the backdoor Roth, you might simply do a large Roth conversion in a high-income year. You convert part of a traditional IRA to a Roth IRA. You pay taxes on the conversion at your current high rate. But again, you are essentially paying those taxes on money you would pay taxes on anyway. The benefit is that in retirement, when your income is lower, you do not have to withdraw as much from your traditional IRA, which means you do not generate as much taxable income. You have essentially pre-paid taxes at a rate higher than you will be in later. This only makes sense if you expect your retirement tax rate to be lower than your current rate. But if you are in a high-income year, that is likely true.

The Planning Conversation The key to making use of a high-income year is to plan for it proactively, not reactively. Ideally, when you know you are going to have a high-income year, you discuss it with your advisor in advance. You model the impact on your taxes. You identify which of these strategies make sense for your situation. You execute them during the year. By the time tax season arrives, you have already optimized. You are not trying to figure out what you should have done.

For Tampa Bay Pre-Retirees If you are approaching retirement and you have control over your income — you can choose to take a bonus in one year or another, or you can defer some income — use that control. Bunch your high income into one or two years while you still have the capability, execute tax planning strategies in those years, and then transition to a lower-income retirement. For someone with significant retirement savings, this transition period is a planning goldmine. You have the opportunity to do things in these final high-income years that will benefit you for decades.