Additional capital contributions to an LLC, partnership, or corporation are generally tax-free under the Internal Revenue Code, but whether you can be forced to make one, and what it does to your ownership and tax basis, depends on the entity’s governing agreement and on a handful of rules that catch owners off guard when property, debt, or quick cash-outs are involved.
The short version: cash in is clean. Property in is complicated. And missing a required contribution can cost you a disproportionate share of the company.
Who Can Require You To Put In More Money
The legal authority to demand additional capital comes from the entity’s foundational contract. For an LLC that’s the Operating Agreement; for a partnership, the Partnership Agreement. If the agreement is silent on additional contributions, no member or partner can be compelled to put in more money.
Well-drafted agreements separate two situations. Mandatory contributions, usually called capital calls, legally require owners to contribute a specified amount when certain conditions are met. Voluntary contributions happen when an owner chooses to inject capital without being obligated, typically in exchange for increased ownership or preferential terms on future distributions.
For either type, the agreement should spell out who can trigger a call (often a supermajority vote), how much notice owners get, how property contributions are valued, and what happens to ownership percentages when contributions are disproportionate. Default penalties only work if they were written in advance. Courts generally won’t impose consequences the agreement didn’t contain when the entity was formed.
How a Capital Call Actually Runs
A capital call clause compels contributions when a triggering event occurs: hitting a specified debt-to-equity ratio, funding a pre-approved expansion, covering an operational shortfall, or meeting a regulatory capital requirement. The agreement defines both the trigger and the mechanics.
Once triggered, the entity issues a formal notice identifying the total amount being called, each owner’s share based on their commitment percentage, how the funds will be used, payment instructions, and the funding deadline. Most agreements give owners 10 to 14 days from the notice.
Proportionality is the point to watch. When every owner contributes in proportion to their existing ownership, the equity structure holds steady. When contributions are disproportionate, because one owner puts in more or another puts in nothing, the agreement’s recalculation formula changes ownership percentages, and that change flows through to profit and loss allocations, distribution rights, and voting power going forward.
Tax Treatment for Partnerships and LLCs
A contribution to a partnership, or to an LLC taxed as a partnership, is generally a non-taxable event. Section 721 provides that no gain or loss is recognized when property is contributed to a partnership in exchange for a partnership interest.1Office of the Law Revision Counsel. 26 U.S. Code 721 – Nonrecognition of Gain or Loss on Contribution That covers cash, real estate, equipment, intellectual property, and virtually anything else classified as property under the tax code.
Services are the big exception. Services aren’t “property” for Section 721 purposes, so an owner who receives a partnership interest in exchange for work rather than cash or assets is taxed on the fair market value of that interest as ordinary income. Sweat equity and cash equity do not get the same treatment.
How Your Basis Changes
Every contribution adjusts the contributing owner’s outside basis, which is the individual tax basis in the partnership interest itself. Under Section 722, outside basis increases by the cash contributed plus the adjusted basis of any property contributed.2Office of the Law Revision Counsel. 26 U.S. Code 722 – Basis of Contributing Partners Interest The partnership takes a carryover basis in the property under Section 723, equal to the contributor’s adjusted basis at the time of contribution.3Office of the Law Revision Counsel. 26 U.S. Code 723 – Basis of Property Contributed to Partnership The asset doesn’t get stepped up to fair market value just because it changed hands.
Outside basis matters for two reasons. It caps the partnership losses you can deduct in a given year: under Section 704(d), your share of losses is deductible only to the extent of your adjusted basis at year end, with the excess carried forward.4Office of the Law Revision Counsel. 26 U.S. Code 704 – Partners Distributive Share And it determines the taxable gain or loss when you eventually sell or liquidate your interest. Higher basis, lower exit tax.
Property Contribution Traps
Cash contributions are straightforward. Property contributions pull in three sets of rules that routinely surprise owners.
Built-In Gain Follows You
When you contribute property worth more than your tax basis in it, the built-in gain doesn’t disappear. Section 704(c) requires the partnership to allocate any pre-contribution gain or loss back to the contributing partner when the asset is eventually sold, so that gain isn’t shifted to partners who had nothing to do with the appreciation.5eCFR. 26 CFR 1.704-3 – Contributed Property Contribute a building with a $200,000 basis and $500,000 fair market value, and the $300,000 of built-in gain stays assigned to you.
Encumbered Property Can Trigger Tax
Contributing property with a mortgage or other debt creates a quieter problem. When the partnership takes on the liability, the contributing partner’s personal debt goes down. Under the Section 752 regulations, that decrease in individual liabilities is treated as a deemed distribution of money to the partner.6eCFR. 26 CFR 1.752-1 – Treatment of Partnership Liabilities If the deemed distribution exceeds your outside basis, the excess is taxable gain. A contribution meant to be tax-free generates a tax bill.
Disguised Sales
Contribute property to a partnership, then receive cash or other property back within a short period, and the IRS may recharacterize the whole thing as a taxable sale. Section 707(a)(2)(B) treats related transfers between a partner and the partnership as a sale when the pattern looks more like a purchase than an unrelated contribution followed by an unrelated distribution.7Office of the Law Revision Counsel. 26 U.S. Code 707 – Transactions Between Partner and Partnership
The regulations are blunt about it. If the contribution and the distribution both happen within two years, they’re presumed to be a disguised sale unless the facts clearly establish otherwise.8eCFR. 26 CFR 1.707-3 – Disguised Sales of Property to Partnership Reasonable guaranteed payments for capital and normal operating cash flow distributions are excluded, but the baseline presumption works against you.
Corporate Contributions
C-Corporations and the 80% Control Test
For a C-corporation, Section 351 provides the parallel nonrecognition rule. No gain or loss is recognized when property is transferred to a corporation solely in exchange for stock, provided the contributing shareholders control at least 80% of the corporation immediately after the exchange.9Office of the Law Revision Counsel. 26 U.S. Code 351 – Transfer to Corporation Controlled by Transferor Control means at least 80% of total combined voting power and at least 80% of all other classes of stock.10Office of the Law Revision Counsel. 26 U.S. Code 368 – Definitions Relating to Corporate Reorganizations
If the contributor receives anything besides stock, like cash or other property (called “boot”), gain is recognized up to the amount of boot. No loss is recognized regardless. The 80% test applies to the transferor group as a whole, so a single shareholder contributing property to a widely held corporation whose contributing group doesn’t hit 80% will recognize gain on the transfer.
S-Corporations: The Loan Guarantee Mistake
S-corp contributions follow basis mechanics that trip up even experienced owners. Like partners, S-corp shareholders can only deduct losses up to adjusted basis. Unlike partners, an S-corp shareholder’s basis comes from two separate buckets: stock basis and debt basis.11Office of the Law Revision Counsel. 26 U.S. Code 1366 – Pass-Thru of Items to Shareholders
Stock basis goes up when you contribute cash or property to the corporation. Debt basis only goes up when you personally lend money to the S-corp. A loan guarantee is not enough. If the corporation borrows from a bank and you personally guarantee the loan, you get zero debt basis from it.12Internal Revenue Service. S Corporation Stock and Debt Basis Owners who guarantee corporate debt and then try to deduct pass-through losses against that “basis” learn the error when the IRS disallows the deduction. The shareholder, not the corporation, has to track basis, and the IRS requires it to be reported on Form 7203.13Internal Revenue Service. About Form 7203, S Corporation Shareholder Stock and Debt Basis Limitations
What Happens If You Don’t Contribute
Missing a mandatory capital call turns an owner into a defaulting partner or non-contributing member, and the penalties are designed to hurt. The most common consequence is aggressive dilution: the non-defaulting owners who cover the shortfall receive equity at a penalty rate, so a $100,000 missed contribution can translate into an equity swing far larger than $100,000.
Other remedies may be written into the agreement:
- Forced sale of the defaulting owner’s interest to the non-defaulting members at a discounted valuation, sometimes as low as 50% to 70% of fair market value.
- Conversion of the unpaid call into a loan to the defaulting member, secured by their ownership interest and carrying an above-market interest rate.
- Loss of non-economic rights, including voting power, book inspection rights, or participation in management decisions, suspended until the default is cured.
Each of these requires explicit documentation in the executed agreement before the default. A penalty clause drafted after the fact, or one vague about mechanics, is far harder to enforce.
When Securities Laws Apply
Capital calls in investment funds and entities with passive investors can trigger federal securities regulations. When an ownership interest qualifies as a security, usually because investors put up money and rely on others to generate returns, the entity has to register the offering with the SEC or qualify for an exemption.
Most private entities rely on Regulation D, particularly Rule 506, which allows unlimited capital to be raised from accredited investors without SEC registration. An accredited investor is an individual with income exceeding $200,000 ($300,000 jointly with a spouse) in each of the two most recent years, or net worth exceeding $1,000,000 excluding the primary residence.14eCFR. 17 CFR 230.501 – Definitions and Terms Used in Regulation D When Regulation D is used, the entity must file Form D with the SEC no later than 15 calendar days after the first sale of securities in the offering.15eCFR. 17 CFR 239.500 – Form D, Notice of Sales of Securities A Private Placement Memorandum disclosing the strategy, management, offering terms, and risk factors should go to investors as well, and state blue sky filings may apply.
For a typical small business LLC where every member is actively involved, capital contributions usually don’t implicate securities laws. The issue arises when some members are passive investors with no operational role, contributing capital purely in exchange for returns. That structure looks much more like a securities offering, and ignoring it exposes the entity and its managers to serious liability.
Documenting the Contribution
Once an additional contribution is agreed, documentation protects everyone. The contributing owner should deliver a written notice stating the amount, the type of asset, and the transfer date. Cash goes directly into the entity’s bank account; personal accounts should never serve as intermediaries. Titled property like vehicles, real estate, or registered intellectual property needs a formal transfer document recorded with the appropriate agency: a vehicle title through the DMV, real estate through a new deed recorded with the county.
Non-cash contributions need a third-party appraisal or another agreed-upon valuation method to establish fair market value. Professional appraisals for business assets typically run several thousand dollars, but skipping the step invites disputes over how much equity the contribution bought. The governing agreement should specify in advance whether valuation will come from a third-party appraiser, an agreed book value method, or something else. Negotiating valuation after the property has already been handed over puts the contributor in a weak position and almost guarantees a fight over the equity adjustment.
The entity’s internal capital schedule, which tracks each owner’s contributions, distributions, and current percentage, has to be updated to reflect the new contribution, and any state filings that changed because of a shift in ownership or control should be completed promptly.