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The $250K Mistake Dentists Make When Buying a Building

by PracticeCFO | May 13, 2026

There’s a moment every dentist looks forward to, and it feels like a real milestone in your career. You finally step into ownership, not just of your dental practice, but of the building itself. No more rent payments going to someone else. No more uncertainty about lease renewals or rising costs dictated by a landlord. It feels like you have reached stability, control, and long-term financial maturity all at once.

But what most dentists do not realize in that moment is that this decision carries more weight than it appears on the surface. Because while ownership feels like progress, the structure behind that ownership determines whether it becomes a wealth-building asset or a long-term financial burden.

And this is where the $250K mistake quietly begins.

Why This Mistake Happens So Easily

The journey usually starts with good intentions. You ask how to set everything up properly, and the answer you often receive sounds simple and logical. Keep everything in one entity, reduce complexity, avoid unnecessary costs, and just operate under your S corporation.

At first, this advice feels right. It checks all the emotional boxes that matter in the early stage of ownership.

  • Fewer filings
  • Lower accounting costs
  • Simpler management
  • One tax ID to deal with

It feels efficient, clean, and easy to maintain.

But what is rarely explained is that simplicity in structure today often creates complexity in the future. Your dental practice and your real estate are not the same type of asset. They function differently, carry different risks, and should never be forced into the same financial container.

When they are combined, you lose flexibility without realizing it.

The Tax Shock That Comes Years Later

Now fast forward ten years. Your building has appreciated significantly. Your practice has grown. You are finally thinking about transitioning, maybe selling the practice while keeping the real estate as a long-term income source.

This is where the hidden issue surfaces.

If your building is held inside your S corporation, you cannot simply separate it without consequences. The IRS treats that separation as a taxable event based on fair market value at the time of transfer.

Let’s break it down with a simple example.

  • Original purchase price: $1,000,000
  • Current market value: $1,500,000
  • Built-in gain: $500,000

That $500,000 is not just a number on paper. It can translate into a real tax bill that easily reaches $200,000 or more, depending on depreciation and timing. And the most important part is this, it is not optional or avoidable at that stage. It is triggered by the structure itself.

This is the moment where many dentists pause and realize the decision that felt harmless years ago has now become extremely expensive.

Why Delaying the Fix Makes It Worse

Once dentists see the tax impact, the natural reaction is often hesitation. The thought becomes, maybe I will deal with it later, maybe it is not urgent, maybe I can find a workaround in the future.

But the reality is that delay makes the situation more expensive, not easier.

Because over time:

  • The property continues to appreciate
  • The taxable exposure continues to grow
  • Restructuring options become more limited
  • Professional flexibility starts to shrink

What once felt like a small structural shortcut slowly turns into a long-term financial restriction. And the longer it stays unchanged, the fewer options you have without cost.

The Risk That Most Dentists Never Consider

Taxes are only part of the story. There is another layer that often goes unnoticed until something goes wrong.

When your building is tied directly to your dental practice entity, it becomes exposed to the risks of that business operation.

That includes:

  • Malpractice claims
  • Employee disputes
  • Contract or lease issues
  • Operational liabilities

Your building, which should ideally be a stable, protected asset, becomes connected to day-to-day business risk.

This is not always obvious at first, because nothing may go wrong for years. But structure is not about what is happening today. It is about what could happen tomorrow.

Financing Becomes More Complicated

Another hidden consequence shows up when you interact with lenders. Banks and financial institutions do not evaluate real estate and business operations in the same way.

Real estate is typically treated as an asset-backed investment, while dental practices are evaluated based on cash flow and business performance.

When both are combined into one entity, it creates confusion in underwriting.

This can lead to:

  • Less favorable loan structures
  • Reduced refinancing flexibility
  • Higher friction in approvals
  • Limited future borrowing options

A clean separation between practice and property makes financing smoother and more predictable. A combined structure does the opposite.

The Structure That Actually Works Better

A more strategic approach separates responsibilities clearly instead of combining them.

  • Your S corporation operates the dental practice
  • A separate LLC owns the real estate
  • The practice pays rent to the LLC under a formal agreement

This structure creates clarity between income generation and asset ownership.

Your dental practice focuses on producing revenue and serving patients. Your real estate entity focuses on holding and growing long-term value.

Each entity has a defined role, which reduces confusion and improves flexibility.

Why Paying Yourself Rent Matters

At first, paying rent to your own entity may feel unnecessary or even circular. But in structured planning, this movement of money has a purpose.

When your practice pays rent:

  • It reduces taxable income inside the business
  • It shifts income into the real estate entity
  • It opens opportunities for depreciation planning
  • It improves long-term tax efficiency

Instead of sending rent to a third-party landlord, you are keeping that economic flow within your own system. That is where long-term wealth begins to compound.

Long-term Wealth Starts With Structure

Owning a dental building is not just about eliminating rent expense. It is about building a long-term financial asset that works alongside your practice.

When structured correctly, your building can:

  • Generate consistent rental income
  • Appreciate in market value over time
  • Offer meaningful tax advantages
  • Provide flexibility during future transitions or sales

When structured incorrectly, it becomes rigid, expensive to fix, and restrictive when you need options the most.

What You Should Do Now

The most important step is not panic; it is awareness. Take a moment to evaluate your current structure with clarity.

Ask yourself:

  • Where is my building currently held
  • Is it inside my practice entity or separate
  • What would it cost to restructure today
  • Am I exposed to unnecessary legal or tax risk
  • Will this structure help or limit me in five to ten years

These questions often reveal gaps that were never discussed when the structure was first created.

Conclusion

The biggest mistake is not buying the building. The real mistake is owning it the wrong way.

Because in wealth building, it is not just about what you own. It is about how you own it, how it is structured, and how much flexibility it gives you in the future.

And in many cases, that one decision quietly determines whether your building becomes a wealth generator or a costly lesson worth hundreds of thousands.

Listen to Episode 150 of The Dental Boardroom Podcast: https://podcasts.apple.com/us/podcast/150-cost-segregation-tax-strategy-for-dentists-part-2/id1518344747?i=1000760506107

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Disclaimer: The marketing materials presented on this website include testimonials that serve as reviews of PracticeCFO Investments’s products and services. PracticeCFO Investments does not compensate clients for reviews or testimonials, and PracticeCFO Investments does not provide anything of value in exchange for these reviews. PracticeCFO Investments has determined that there are no material conflicts of interest between the firm and the participant, and PracticeCFO Investments has not influenced the statement made by the client(s) appearing on this website.
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