Introduction

You are about to learn how to move assets into a corporation without an immediate tax bill.

This article covers the strategy known as a Section 351 exchange and shows you where it shines and where it doesn’t.

I have spent three decades guiding entrepreneurs, executives, and high-net-worth families through IRS rules that affect real money decisions.

What follows comes from that work and from patterns I have seen repeatedly in the field.

Here is what you will take away today.

• What a Section 351 exchange is and why it exists.
  • The requirements that must be met and how to confirm them.
  • Where people trip up and how to avoid the traps.
  • Practical examples, basis math, and timing tips.
  • Advanced planning ideas including QSBS, partnership conversions, and family wealth moves.
  • A step-by-step checklist you can use with your CPA and attorney.

Read with a pen in hand.

If you run a company in Austin or invest in private deals, you will likely use this at some point.

Section 351 can also help you diversify appreciated public stock positions, so if you are interested in learning more, check out our blog on Section 351 and Exchange Traded Funds Blog

Section 351 in plain English

A Section 351 exchange lets one or more people transfer property to a corporation and receive stock while deferring tax on any built-in gain.

The IRS treats this as a change in form rather than a sale when three conditions line up.

Property is contributed.

Stock is the only thing received back.

The contributors as a group control at least 80 percent of the corporation immediately after the transfer.

Think of it like rearranging the shelves in your own pantry.

The food did not change hands.

You simply organized it in a new way that is better for growth, investment, or liability protection.

That is the policy goal.

Congress wanted owners to build businesses without a toll charge each time they placed assets inside a corporate wrapper.

The law is short.

The planning is not.

Every detail matters because small changes in structure or timing can turn a deferral into a taxable sale.

Why this matters in Austin right now

Austin’s economy is full of startup founders, bootstrapped family operators, tech executives with side ventures, and real estate investors.

Many want to protect personal assets, admit partners, raise capital, or prepare for a sale.

A Section 351 move often sits at the first step of those plans.

I recently helped a local founder incorporate an IP portfolio before a seed round.

We contributed patents for stock, documented valuations, and kept all service-based shares separate.

That one decision deferred seven figures of built-in gain while setting the cap table up for QSBS treatment.

The next financing closed cleanly because the groundwork was done right.

If you know the rules, you can capture similar benefits.

If you ignore them, the IRS can treat the event as a sale and tax the gain even though no cash came in the door.

The three pillars you must satisfy

You will see these again and again.

• Property.
• Stock only.
• Control of at least 80 percent immediately after.

What counts as property

Cash, equipment, inventory, real estate, patents, trademarks, customer lists, code, domain names, partnership or corporate stock of another company, and similar rights.

Services do not count.

Stock for services is taxable compensation and does not help you meet the test.

What stock means here

Common or traditional preferred shares.

Voting or nonvoting shares both qualify.

Certain debt-like preferred shares are treated as property other than stock, which turns them into taxable boot.

Keep formation stock plain and clean unless you have a strong business reason to complicate it.

What control means

The transferors together must own at least 80 percent of the voting power and at least 80 percent of each class of nonvoting shares immediately after the exchange.

This can be a group of founders acting together.

It can also include new investors as long as they are contributors of property in the same transfer.

Fail any one pillar and the transfer is taxable.

Meet all three and you defer gain.

Your basis in the stock carries over from the property you contributed, and the corporation takes a carryover basis in the assets.

The boot problem and why it surprises people

The transfer must be solely for stock to be fully tax-deferred.

If you receive anything else, that extra value is called boot.

Boot triggers current gain up to the value of what you received.

Cash is obvious.

A corporate note is boot as well.

Property other than stock received back is boot.

Debt that the corporation assumes is usually not boot, but there are two big exceptions that blow up many deals.

If liabilities are taken to avoid tax or without a business purpose, the assumption is treated as boot.

If liabilities exceed your basis in the property transferred, you must recognize gain equal to the excess.

That second rule is the silent killer in real estate and leveraged businesses.

Owners often have large mortgages and low basis after years of depreciation.

They move a property into a corporation that assumes the mortgage and then learn they owe tax even though no cash changed hands.

A little planning before the transfer can often prevent that result.

A quick tour of basis math you can use

Basis is your scorecard.

Get these equations right and you will understand how much gain is deferred, how much is recognized, and what your stock is worth for tax purposes.

Shareholder stock basis after the exchange equals the basis of property contributed plus any gain recognized minus any boot received minus liabilities assumed by the corporation that are treated as boot under the special rules.

In many cases liabilities are not boot, yet they still reduce basis down to zero.

You cannot have negative basis in stock.

If the math goes below zero, the excess is recognized as gain.

Corporate basis in an asset received equals the transferor’s basis plus any gain the transferor recognized on that asset.

Holding periods generally carry over as well.

That affects later capital gain treatment when the corporation sells the asset.

Run this math before you sign anything.

It is the difference between a clean deferral and an accidental tax bill.

How to structure a clean founder formation

Here is a structure we use often for new corporations in Austin.

First, each founder contributes property that has economic substance.

That can be cash, code, patents, trademarks, or a domain.

If someone’s contribution is services, handle that separately as compensation or as an option or RSU that vests over time.

Second, contribute on the same day or under a binding plan that treats the founders as a single transfer group.

That helps meet the immediate control test.

Third, use plain common stock unless there is a pressing reason to add classes.

If you add nonvoting classes, be sure the founders as a group hold at least 80 percent of each class immediately after the transfer.

Fourth, avoid any cash paid back to balance differences.

Balance using stock percentages instead.

If you must deliver cash to a contributor, accept that the cash portion will be taxable boot and plan for it.

Fifth, document valuations and business purpose.

Keep a file with a short memo explaining what each person contributed, how you valued it, and why the corporation needs it.

If reviewed in an audit, that file pays for itself.

I recently formed a Texas C-corp where two founders brought in IP and one brought cash.

We timed the transfers as a single event, issued common shares, and tracked basis carefully.

The founders met the 80 percent test as a group and walked away with a clean deferral and a cap table ready for outside money.

Partnership or LLC to corporation without drama

Many operating companies in Central Texas begin as LLCs taxed as partnerships.

As the business grows, owners may want corporate stock for equity plans, acquisitions, or a later S-corporation election.

A Section 351 plan makes that possible.

There are several methods to incorporate a partnership.

The most common is the assets-over method.

The partnership transfers all assets and liabilities to a newly formed corporation in exchange for stock.

The partnership then distributes that stock to the partners and dissolves.

This sequence qualifies for deferral when planned correctly because the partnership had control immediately after the asset transfer.

Each partner ends up with corporate stock that reflects prior basis and holding period.

Here is where deals derail.

Partnership debt can be large and basis for some partners can be small.

When the corporation assumes liabilities, compare each partner’s share of liabilities with the basis of property that partner is treated as contributing.

If liabilities exceed basis, that excess triggers gain at the partnership level that flows through.

We often solve this by contributing additional cash, refinancing, or moving certain assets first to adjust basis.

I worked with a Hill Country restaurant group that needed to convert to a C-corp before selling a minority stake to a private investor.

We mapped out debt sharing, contributed extra cash to lift basis above liabilities, and kept the transfer within the safe zone.

The investors got the equity they wanted.

The owners avoided a surprise tax bill.

How to welcome a new investor and still keep deferral

Owners sometimes want to bring in a new investor at the same time they incorporate.

That can work, but coordination is key.

If the founder and the investor both contribute property in the same transaction and together hold at least 80 percent immediately after, you can still qualify for deferral.

Cash contributed by the investor counts as property.

The founder’s appreciated assets go in at the same time for stock.

Where people run into trouble is mixing cash to the founder with the investor’s contribution.

If the corporation hands cash to the founder as part of that exchange, that cash is boot and taxable up to the gain.

That might be fine if the founder wants a partial cash-out.

Just do the math and plan for the tax.

If the founder wants to keep full deferral and still admit a new investor, consider this flow.

Complete the founder’s Section 351 transfer first so the founder holds control.

After a suitable interval and without any binding pre-arrangement, have the corporation issue new shares to the investor for cash in a separate transaction.

This avoids the step-transaction risk that can otherwise collapse the events into one taxable exchange.

I advised a manufacturing client near Round Rock who wanted to admit a strategic investor during formation.

We staged the events.

First we formed the corporation and made the founder’s contribution.

After board minutes and clean books were in place, the company raised capital and issued shares to the investor.

The founder preserved deferral.

The investor got the equity stake.

Both sides left happy.

Services ruin the test unless handled with care

A common trap appears when a cofounder receives shares for services with little or no property contributed.

Those shares do not count toward the group’s 80 percent control, and the recipient owes ordinary income tax on the value of the shares.

There are two clean solutions.

Issue service-based equity as compensation after the Section 351 event is complete.

Or ask the service founder to contribute meaningful property as part of the transfer.

Meaningful usually means at least ten percent of the value of the shares that person is receiving.

Five percent is risky.

A token amount is very risky.

I once reviewed a startup that had issued half its shares to a service founder at formation with only a nominal cash contribution.

The other founder had contributed valuable IP and equipment.

That structure failed the control test.

We unwound the issue before the return was filed by re-papering the cap table, increasing the property contribution, and placing the service portion under a vesting agreement with tax handled as compensation.

Clean equity beats creative equity every time.

How this connects to Qualified Small Business Stock

Many Austin companies hope for a future exit.

If the corporation is a domestic C-corp in a qualifying industry and the stock is issued for money or property, founders may qualify for the QSBS exclusion after holding the shares for the required period.

That exclusion can remove a large amount of gain from federal tax.

A Section 351 formation pairs well with that goal because founder shares issued for property count for QSBS purposes, while shares issued for services do not.

Keep clean records at formation that show what each founder contributed and how the stock was valued.

Stay mindful of excluded industries and the gross asset test.

If you think an exit is possible, discuss QSBS early so your structure supports it.

I worked with a software company near the Domain that had strong growth prospects.

We cleaned up the formation, verified the stock qualified, and maintained records across each financing.

When a partial secondary sale occurred later, the owners had a clear file to support their position.

Check out our blogs on Qualified Small Business Stock

Real-world vignettes you can model

A practical checklist you can use this week

• Confirm that each contributor is delivering property. Separate any service equity.
• Map ownership after the transfer and confirm the group exceeds the 80 percent test for voting power and for each nonvoting class.
• Avoid boot. If someone needs cash, accept that portion as taxable and model it.
• Test liabilities against basis for each contributor. Add cash or restructure if liabilities exceed basis.
• Keep the stock plain. If preferred is needed, review terms to avoid debt-like features.
• Set a tight schedule. Document that the transfers are part of one plan.
• Prepare a short valuation memo. List assets, basis, and fair value.
• Track basis at both shareholder and corporate levels in a schedule that will live with the company.
• File any required statements with tax returns.
• Revisit the plan before any near-term investor sale to avoid step-transaction risk.

A guide to timing and documentation

Timing

Group contributions within a tight window.

Use board resolutions that reference one integrated plan.

Avoid any binding commitment to sell founder stock to outsiders before the transfer closes.

Documentation

Prepare a one-page term sheet for the exchange.

List contributors, property, basis, fair value, liabilities assumed, and stock issued.

Attach any appraisals or valuation memos.

Keep schedules that show carryover bases for both shareholders and the corporation.

After the transfer

Open corporate bank accounts.

Move contracts and IP assignments into the corporation.

Sign officer and board agreements.

If an LLC elected corporate status for the transfer, keep the election in the minute book.

This level of discipline pays off when you raise capital, grant options, or face due diligence during a sale.

Advanced planning ideas for high-net-worth families

Family business recapitalization

A Section 351 step can move an operating business into a corporation.

Later, a recapitalization can create voting and nonvoting classes to separate control from economics.

Senior generation can retain voting shares and gift nonvoting shares to trusts for children.

The initial deferral makes the move painless from an income tax standpoint while opening estate planning options.

QSBS stacking within legal limits

Where appropriate, families sometimes fund non-grantor trusts at formation or shortly after.

Each qualifying taxpayer may be able to claim a separate QSBS exclusion on a later sale.

Work closely with counsel on substance and timing.

Make sure shares were issued for property or cash, not services.

Operating company and property company split

If you operate a business and own the building, you may place the building in a separate corporation and lease it to the operating company.

A Section 351 move can get the real estate into the property company without current tax.

This isolates risk and creates clean economics for buy-sell planning.

Watch the liability and basis math first.

Holding company creations

Owners sometimes create a holding company above an existing corporation to organize multiple lines of business or prepare for financing.

Shareholders of the existing corporation contribute their shares to the new parent and take parent stock in return.

When done with proper control, this qualifies for deferral.

Keep the ownership the same immediately after and maintain records of basis and holding period.

Planned recognition at low rates

Occasionally clients want to recognize some gain during a year with lower expected rates or large capital losses.

In that case we purposely accept boot or structure the event in a way that does not meet all requirements.

This calls for careful modeling and an honest discussion about risk and reward.

The point is that Section 351 is a rule to apply, yet planning remains flexible.

Pitfalls checklist with fixes you can apply today

• Boot slips in through cash equalization, a company IOU, or property outside the stock.
  Fix with stock-only consideration or accept a planned taxable portion.
• Liabilities exceed basis.
  Fix with additional cash or asset contributions before the transfer or refinance debt.
• Control fails because of service-only shares or outside investors.
  Fix by separating compensation, increasing property contributions, or re-sequencing events.
• Debt-like preferred stock is used at formation.
  Fix by using plain common stock or adjusting terms to make the preferred equity-like.
• Investment company concerns due to pooled securities.
  Fix by using an LLC taxed as a partnership or by holding those assets outside a corporation.
• Documentation is thin.
  Fix by creating a file with resolutions, valuation support, and basis schedules.

Who benefits most from Section 351

• Founders forming a corporation for the first time.
• Owners converting a partnership or LLC to a corporation.
• Families moving an operating business into a corporate structure for estate planning.
• Companies creating a holding company above existing subsidiaries.
• Real estate investors separating operations from property ownership.
• Any owner bringing in a partner or investor who wants deferral where possible.

If you see yourself on that list, put Section 351 on the agenda for your next planning meeting.

Conclusion

Section 351 lets you change the form of ownership without an immediate tax bill when you contribute property for stock and keep control.

Plan the exchange as a single integrated event, keep compensation separate, verify basis versus liabilities, and document values.

You learned how the three requirements work, how boot creates current tax, how to compute basis, and how to structure founder formations, partnership conversions, and investor admissions.

You saw advanced ideas for QSBS, family planning, and holding companies.

You also received a checklist and a data table you can use with your team.

If you are forming a new venture, converting an LLC, or preparing for an investment, schedule a call.