To record a capital contribution, debit the asset account that received the money or property and credit the equity account for the owner who put it in. The accounts you use, and how the credit gets split, depend on whether the business is a sole proprietorship, a partnership or multi-member LLC, or a corporation. The entry looks like bookkeeping, but it sets each owner’s tax basis, and basis controls how much loss you can deduct and how much tax you owe when you sell or wind the business down.
Sole Proprietorships and Single-Member LLCs
The entry here uses two accounts. Debit the asset that came in (Cash, Equipment, Vehicle) and credit an Owner’s Capital account labeled with the owner’s name, such as “J. Smith, Capital.”
A $10,000 cash contribution posts as a $10,000 debit to Cash and a $10,000 credit to Owner’s Capital. A non-cash contribution works the same way: debit the specific asset at its fair market value and credit Owner’s Capital for the same amount. That capital account is a running total. Net income, net losses, and personal draws all flow through it during the year.
The common mistake is booking a personal cash transfer as business revenue. Revenue is taxable income and ends up on Schedule C. A capital contribution is not income. It’s an equity investment that increases your basis. A $5,000 personal transfer miscoded as “Other Income” creates a phantom tax bill. Every personal-to-business transfer belongs in an equity account, never a revenue account. A separate business bank account, with each transfer labeled “owner contribution,” makes the misclassification easy to catch during reconciliation.
Partnerships and Multi-Member LLCs
The mechanics are the same, debit the asset and credit equity, but each partner or member gets their own equity account. A contribution posts only to the contributing owner’s account.
If Partner A contributes $50,000 in cash and Partner B contributes equipment appraised at $30,000, the entries are:
- Partner A: Debit Cash $50,000; Credit Partner A, Capital $50,000
- Partner B: Debit Equipment $30,000; Credit Partner B, Capital $30,000
Each partner’s capital account balance should reflect the fair market value of what they contributed, plus their share of income, minus distributions and their share of losses. That book capital account drives the economic deal between the partners: who gets what if the partnership liquidates, and how profits and losses split.
The Capital Account Is Not the Same as Tax Basis
A partner’s capital account and their tax basis (called “outside basis”) are related but different numbers, and confusing them is where partnerships get into trouble. Outside basis starts with the cash the partner contributed plus the adjusted tax basis of any property they contributed, not the property’s current fair market value. It then increases by the partner’s share of partnership liabilities and their allocated share of income, and decreases with distributions and allocated losses.
The IRS calculates outside basis roughly as the partner’s tax-basis capital account, plus their share of partnership liabilities, plus any special basis adjustments the partnership has elected.1Internal Revenue Service. Partner’s Outside Basis This matters because a partner can only deduct losses up to their outside basis at year-end. Losses over basis carry forward until the partner has enough basis to absorb them.2Internal Revenue Service. New Limits on Partners’ Shares of Partnership Losses Frequently Asked Questions
A separate “at-risk” limit further restricts deductions. A partner’s at-risk amount generally includes their cash investment plus amounts they’ve personally borrowed and are liable for. Nonrecourse debt, where no partner is personally on the hook, generally doesn’t increase the at-risk amount, with a narrow exception for certain real estate debt. Making an additional capital contribution is the most direct way to restore both outside basis and the at-risk amount, unlocking suspended losses from prior years.
What the Operating Agreement Should Cover
The partnership or operating agreement should spell out how non-cash contributions get valued, whether independent appraisals are required, and how capital accounts adjust when a new partner joins. Without that clarity, disputes are almost inevitable, especially when one partner contributes cash and another contributes property they believe is worth more than the other partners agree.
Corporations
Corporate contributions involve issuing stock, and the credit side splits between two equity accounts based on par value.
Par value is a nominal amount, often $0.01 or $1.00 per share, set in the corporate charter. It has almost no economic meaning today, but it still dictates how you split the entry. If a corporation issues 1,000 shares with a $1.00 par value at $10.00 per share:
- Debit Cash $10,000
- Credit Common Stock $1,000 (1,000 shares × $1.00 par value)
- Credit Additional Paid-In Capital $9,000 (the amount above par)
Common Stock captures the legal minimum capital. Additional Paid-In Capital (APIC) captures the premium investors paid above that floor. Both sit within Shareholders’ Equity, and together they represent total contributed capital.
No-Par-Value Stock
Many states let corporations issue stock with no par value. When that’s the case, the entire amount goes to Common Stock and there is no APIC split. Using the same example, you’d debit Cash $10,000 and credit Common Stock $10,000. Some companies issuing no-par stock assign a “stated value” set by the board, which functions like par value for accounting purposes. The stated-value portion credits Common Stock and the excess credits APIC.
Authorized Share Limit
A corporation can only issue shares up to the maximum authorized in its articles of incorporation. If a new contribution would push you past that limit, amend the charter before recording the entry. That amendment typically requires a board resolution, a shareholder vote, drafting the formal amendment, and filing it with the state. Skipping the step means the shares were never validly issued, which creates legal exposure for both the company and the investor.
S-Corporation Caution
S-corporations can only have one class of stock, though voting and nonvoting shares are permitted. Contributions that come with special repayment terms, liquidation preferences, or disproportionate distribution rights can inadvertently create what the IRS treats as a second class of stock, terminating the S-election entirely. Shareholder loans that lack genuine debt characteristics (no stated interest rate, no maturity date, no repayment schedule) are particularly dangerous because the IRS may reclassify them as equity with different rights than the existing shares. If your S-corp is accepting contributions beyond straightforward cash-for-common-stock, have the terms reviewed before you record anything.
Property Contributions and the Basis Mismatch
When an owner contributes appreciated property instead of cash, the natural question is whether the contribution triggers a taxable event. For both partnerships and corporations, Congress created nonrecognition rules that let owners defer the tax, but the rules work differently and each has conditions that are easy to miss.
Partnerships: Section 721
No gain or loss is recognized when a partner contributes property to a partnership in exchange for a partnership interest.3Office of the Law Revision Counsel. 26 USC 721 – Nonrecognition of Gain or Loss on Contribution The partner’s outside basis in the partnership interest equals the cash contributed plus the adjusted tax basis of any property contributed, not its fair market value.4Office of the Law Revision Counsel. 26 USC 722 – Basis of Contributing Partner’s Interest The partnership’s basis in the property (its “inside basis”) also carries over from the contributing partner.5Office of the Law Revision Counsel. 26 USC 723 – Basis of Property Contributed to Partnership
This creates a book-tax mismatch that catches people off guard. Say Partner B contributes equipment with a fair market value of $30,000 but an adjusted tax basis of $12,000. The partnership books the equipment at $30,000 for capital account purposes, but the partnership’s tax basis in the equipment is only $12,000. Partner B’s outside basis increases by $12,000, not $30,000. If the partnership later sells the equipment for $30,000, the $18,000 of built-in gain that existed at the time of contribution must be allocated back to Partner B for tax purposes under Section 704(c). The other partners don’t share pre-existing gain.
Corporations: Section 351
The corporate equivalent works similarly but has a stricter qualifying test. No gain or loss is recognized when property is transferred to a corporation, but only if the people transferring property collectively own at least 80% of the corporation’s stock immediately after the exchange.6Office of the Law Revision Counsel. 26 USC 351 – Transfer to Corporation Controlled by Transferor A single founder who incorporates a new company and contributes startup assets for 100% of the stock clears the 80% test easily. It gets tricky when a new investor contributes property to an existing corporation without the prior shareholders also transferring property in the same exchange. The new investor alone may not clear 80%, making the contribution taxable.
When Section 351 applies, the shareholder’s basis in the stock received equals the adjusted basis of the property they gave up.7Office of the Law Revision Counsel. 26 USC 358 – Basis to Distributees The corporation’s basis in the property equals the transferor’s old adjusted basis as well.8Office of the Law Revision Counsel. 26 USC 362 – Basis to Corporations Both sides carry over the old tax basis, and the deferred gain stays embedded in the property and the stock until a future sale triggers it.
One limitation: services, certain debt of the corporation, and accrued interest do not count as “property” for Section 351 purposes. Stock issued for services is taxable compensation to the recipient, even when everyone else in the same transaction qualifies for nonrecognition.6Office of the Law Revision Counsel. 26 USC 351 – Transfer to Corporation Controlled by Transferor
Valuing What Came In
You need a defensible fair market value to record the entry. For everyday business property (a used vehicle, office furniture, standard equipment), comparable sales data and depreciation schedules are usually enough documentation. For real estate, closely held business interests, intellectual property, or anything where value isn’t obvious from a quick market search, get a qualified independent appraisal. The cost is trivial compared to the IRS later rejecting your stated value and recalculating everyone’s basis.
Remember the split: the journal entry uses fair market value, but the contributing owner’s tax basis and the entity’s tax basis in the property are the adjusted carryover basis under Sections 722/723 or 358/362. This book-tax difference is permanent and needs to be tracked, especially in partnerships where 704(c) allocations depend on it.
Sweat Equity Is Not Recorded Like Property
Founders and early employees sometimes receive ownership interests for their labor rather than cash. The treatment diverges sharply from property contributions.
In a partnership or LLC, receiving a “capital interest” (a share of proceeds if the business liquidated immediately) in exchange for services is not protected by Section 721’s nonrecognition rule. The fair market value of that interest is taxable compensation to the recipient under Section 83.9Internal Revenue Service. Revenue Ruling 2004-37 The partnership records the compensation expense and the service provider picks up income.
A “profits interest,” which only entitles the recipient to a share of future growth, generally receives friendlier treatment. Under IRS guidance, receiving a profits interest for services typically is not a taxable event at grant, provided certain conditions are met (notably, the interest isn’t disposed of within two years and isn’t tied to a substantially certain income stream). The distinction between capital interests and profits interests is one of the more consequential structuring decisions for startups using LLC structures.
In a corporation, stock issued for services is always taxable compensation at fair market value. There is no equivalent to the profits-interest safe harbor. The recipient reports ordinary income and the corporation gets a corresponding compensation deduction. The entry credits Common Stock and APIC as with any stock issuance but debits Compensation Expense rather than an asset account.
Loan or Contribution
When an owner puts money in, whether it’s a loan or a contribution has real tax consequences. A capital contribution increases the owner’s equity basis dollar-for-dollar. A loan increases the business’s liabilities, and the owner’s basis only to the extent of their share of that liability (which varies by entity type). If the money is a loan, the business can deduct interest paid, and the owner reports the interest as income.
Trouble starts when owners call something a loan but treat it like a contribution: no promissory note, no fixed repayment schedule, no interest rate, and repayment only when the business feels like it. Under Section 385, the IRS can recharacterize the arrangement as equity, wiping out claimed interest deductions and potentially reclassifying prior “interest payments” as taxable distributions or guaranteed payments. The factors that push toward recharacterization include the absence of a written promise to pay, thin capitalization, owner “loans” made in exact proportion to ownership, subordination to every outside creditor, and convertibility into stock. No single factor decides it, but stacking several bad facts makes recharacterization far more likely.
If you intend a transfer to be a loan, document it like one. Execute a promissory note, set a market interest rate, establish a realistic repayment schedule, and actually make the payments. The paper trail is what saves you if the IRS questions the classification.
The stakes are higher for S-corporations. If the IRS reclassifies a shareholder loan as equity and the reclassified interest has different distribution or liquidation rights than the existing stock, it can be treated as a second class of stock, terminating the S-election retroactively.
Documentation Behind the Entry
The journal entry is only half the job. Without supporting documentation, the numbers in your ledger have no legal weight.
For corporations, the board should formally approve each stock issuance by resolution recorded in the meeting minutes. The resolution should specify the number of shares issued, the price per share, the identity of the recipient, and the valuation basis for any non-cash assets received. Maintain a stock register, a running record of every share issued, transferred, or canceled, as the definitive ownership record.
For partnerships and LLCs, the partnership agreement or operating agreement should document what was contributed, its agreed value, and how it affects the contributing member’s capital account and ownership percentage. A capital account ledger that tracks contributions, distributions, and allocated income or loss for each owner is essential for year-end tax reporting and for resolving disputes if the business dissolves.
Across all entity types, keep the underlying evidence: bank statements showing the deposit, appraisal reports for non-cash assets, signed promissory notes for anything intended as a loan, and copies of amended organizational documents such as updated articles of incorporation reflecting new authorized shares. These are what you produce if the IRS challenges a claimed basis, and reconstructing them years after the fact is rarely possible.