Most business owners know about income tax. Many know about capital gains tax. But there’s another tax quietly sitting in the background that catches a lot of successful people by surprise. It’s called the Net Investment Income Tax, or NIIT. And for many business owners, it adds an extra 3.8%

A tax planning professional detailing the six hidden taxes business owners pay, including capital gains, NIIT, and self-employment taxes.

If you ask most business owners what taxes they pay, the answer is usually the same: And while those are certainly real, they are only part of the picture. In reality, successful business owners face six different taxes that can erode their wealth over time. Some show up every year.

A wealth advisor explaining behavioral finance and the hidden costs of emotional financial decisions to a business owner.

Most business owners worry about the wrong taxes. They spend time trying to minimize income tax.They ask their CPA about capital gains rates.They worry about estate taxes decades down the road. All of those taxes matter. But the biggest tax I see business owners pay isn’t on their tax return.

A wealth advisor discussing why small business valuations are often lower than an owner's expectations.

Most business owners believe their business will fund their retirement. Most are wrong. That’s not an insult. It’s math. When discussing exit planning and business valuation, asking owners what their company is worth usually results in one of three answers: Very rarely do I get a number grounded in real

Stephen Nelson of Mills Wealth Advisors discussing the financial questions every business owner must answer before selling their business.

If your financial plan starts with “max your 401(k),” you probably don’t have a business owner plan. You have an employee plan. And that’s the problem. There are more employees than business owners. So most financial advice is built around steady paychecks, predictable taxes, and simple retirement structures. Then that

Business owner discussing a management buyout and exit strategy with a key employee in Southlake, Texas.

When most business owners think about selling, they picture an outside buyer—a competitor, a private equity firm, or a strategic acquirer. But one of the most rewarding and often overlooked exit paths is right under your nose: selling your business to a key employee or a small group of employees

"Financial advisor discussing 529 plan college savings questions with parents in Southlake, Texas.

Saving for your child’s education is one of the most thoughtful financial gifts you can give. A 529 plan offers real advantages — tax-free growth, tax-free withdrawals for qualified education expenses, and in many states, a deduction on your state income taxes. It’s a powerful tool. At a Glance Before

Wealth advisor discussing overlooked estate planning strategies, including 529 plans, with a high-net-worth family.

When people think about estate planning, they think about trusts. Irrevocable trusts.Dynasty trusts.SLATs.GRATs. Complex structures with legal language most families don’t fully understand. Very few people think about 529 plans. And that’s a mistake. Because for high-net-worth families, a 529 plan can be far more than a college savings account.

Luxury home in Southlake Texas being considered for short-term rental during the 2026 World Cup.

Airbnb is offering a $750 bonus to new hosts in DFW ahead of the 2026 FIFA World Cup. That’s headline-worthy. But the $750 isn’t the story. The story is what a short-term rental during a global event could actually mean for a Southlake homeowner. Why Southlake Is in a Unique

Chart showing the difference between marginal and effective tax rates over a 30-year retirement timeline.

Most people obsess over this year’s tax bill. That’s tactical. High-level tax planning is strategic. The real objective is not minimizing taxes this year. It is minimizing your lifetime effective tax rate. When you zoom out and coordinate contributions, deductions, and conversions across decades, the math becomes powerful. Done properly,