A capital account is a per-owner ledger that tracks each partner’s or LLC member’s equity in the business. It starts with what you put in, goes up when you contribute more or are allocated a share of profits, and goes down when the business allocates you a loss or pays you a distribution. Partnerships and multi-member LLCs keep one of these accounts for every owner because the business itself doesn’t pay federal income tax; profits, losses, and equity all flow through to the people who own it, and each owner needs a separate record of where they stand. Capital accounts in LLCs and partnerships sit at the center of both the books and the federal tax return.
What Changes the Balance
Your opening balance is your initial contribution. Cash goes in at face value. Contributed property is another matter: under federal law, neither you nor the partnership recognizes gain or loss when you contribute property in exchange for an interest.1Office of the Law Revision Counsel. 26 U.S. Code 721 – Nonrecognition of Gain or Loss on Contribution The partnership carries over your original adjusted tax basis in that property, which can be much lower than what the property is worth on the day you hand it over. That gap matters later, when the partnership depreciates or sells the asset.
After the opening entry, four items move the account:
- Additional contributions of cash or property increase the balance.
- Your share of the partnership’s net income for the year increases the balance, even if no cash is distributed to you.
- Your share of net losses reduces the balance.
- Distributions (draws) of cash or property paid to you reduce the balance.
A partner whose account shows $200,000 might have put in $100,000 in cash, been allocated $130,000 of profits over several years, and taken $30,000 in draws. The ledger tells that story in one number.
The operating agreement or partnership agreement governs the mechanics: required contributions, how profits and losses are split, when distributions can be made, and what happens if a partner leaves. Where the agreement is silent, state default rules and federal tax regulations fill in.
How the Balance Is Calculated
The same partner in the same partnership can have three different capital account balances depending on which accounting framework you use.
Tax Basis Method
The tax basis method ties the account to figures reported on federal returns. Contributed property enters at its adjusted tax basis (roughly what the contributor originally paid, adjusted for depreciation and similar items) rather than fair market value. The IRS now requires partnerships to report each partner’s capital account on Schedule K-1 using the tax basis method.2Internal Revenue Service. Partner’s Instructions for Schedule K-1 (Form 1065)
GAAP Method
Some businesses keep books under Generally Accepted Accounting Principles when lenders or outside investors want a standardized view of financial health. GAAP capital accounts can diverge from tax basis accounts because GAAP has its own depreciation schedules, revenue recognition rules, and asset valuation methods.
Section 704(b) Book Basis
Federal regulations require that profit and loss allocations among partners have “substantial economic effect”: the tax benefits and burdens each partner gets must match the actual economic deal.3eCFR. 26 CFR 1.704-1 – Partner’s Distributive Share Meeting that standard means maintaining capital accounts under specific rules: crediting contributions at fair market value, adjusting for allocated income and loss, and reducing for distributions. If the IRS decides an allocation lacks substantial economic effect, it can reallocate profits and losses among the partners, which can produce tax bills nobody planned for.
Book basis accounting also allows revaluation. When a new partner joins, or an existing partner is bought out in part, the partnership can revalue all its assets to current fair market value and adjust every partner’s capital account accordingly. This “book-up” or “book-down” keeps new partners from sharing in gains or losses that accrued before they arrived.
Why the Method Matters
Contribute a building worth $500,000 with a tax basis of $200,000, and your 704(b) book capital account shows $500,000 while your tax basis capital account shows $200,000. The two accounts continue to drift apart as depreciation and gains are computed differently under each framework. Before you request a distribution, sell your interest, or read too much into a Schedule K-1 number, you need to know which method your partnership uses and what your balance represents under it.
Allocated Income Is Not the Same as Cash
At year end, the partnership allocates its net income or loss among the partners, usually by percentages fixed in the operating agreement. A 60/40 split of $100,000 in profit means the majority partner’s account goes up $60,000 and the minority partner’s goes up $40,000, whether or not either partner sees a dime.
This trips up new partners. You can owe tax on $60,000 of allocated income while receiving nothing, because the partnership reinvested every dollar it earned. The reverse also happens: a large cash distribution in a break-even year reduces your capital account without creating taxable income, provided the distribution doesn’t exceed your outside basis.
Guaranteed payments work differently. These are fixed amounts paid to a partner for services or the use of capital, whether or not the business is profitable. The partnership deducts them as an expense, which shrinks the net income allocated to all partners. The partner who receives the guaranteed payment reports it as ordinary income, separate from their distributive share of profits. Guaranteed payments come out of the pie before it’s sliced.
Capital Account vs. Outside Tax Basis
The single most common source of confusion for partnership owners is the difference between the capital account balance and outside tax basis. They are two different numbers, and confusing them can trigger tax you didn’t plan for.
Your capital account tracks equity inside the partnership: contributions, plus allocated income, minus distributions and allocated losses. Your outside tax basis includes all of that plus your share of the partnership’s liabilities.4Internal Revenue Service. Partners – Outside Basis Section 705 of the Internal Revenue Code governs the calculation, increasing basis for your share of taxable income and certain other items and decreasing it for distributions and allocated losses.5Office of the Law Revision Counsel. 26 USC 705 – Determination of Basis of Partner’s Interest
The practical impact lands in two places:
- Distributions. You don’t owe tax on a cash distribution unless it exceeds your outside basis, not your capital account. Because basis includes your share of partnership liabilities, your tax-free ceiling is often higher than the capital account suggests.6Office of the Law Revision Counsel. 26 U.S. Code 731 – Extent of Recognition of Gain or Loss on Distribution
- Loss deductions. You can deduct partnership losses only up to your outside basis at year end. Losses beyond that limit carry forward and become deductible in a later year when basis rises.7Office of the Law Revision Counsel. 26 U.S. Code 704 – Partner’s Distributive Share
Say your K-1 shows a tax basis capital account of $50,000 and your share of partnership liabilities is $25,000. Your outside basis is roughly $75,000. A $60,000 cash distribution produces no taxable gain, because $60,000 is still under $75,000, even though the distribution exceeds your capital account. Rely on the capital account alone and you might pass up a tax-free distribution you could have taken, or accept an $80,000 distribution and get taxed on the $5,000 that exceeds basis.4Internal Revenue Service. Partners – Outside Basis Any gain that does result from an excess distribution is treated as a capital gain.8Internal Revenue Service. Topic No. 409, Capital Gains and Losses
When the Account Goes Negative
A capital account can drop below zero when accumulated losses and distributions outstrip contributions and allocated income. A negative balance isn’t automatically a problem, but it comes with obligations.
Many partnership agreements contain a “deficit restoration obligation”: a partner with a negative capital account must contribute cash to zero it out on liquidation. This isn’t just paperwork. It’s one of the tests for whether the allocations that produced the deficit have substantial economic effect in the first place.3eCFR. 26 CFR 1.704-1 – Partner’s Distributive Share Without one, the IRS may refuse to respect the loss allocation to that partner.
Outside tax basis, unlike the capital account, cannot go below zero.4Internal Revenue Service. Partners – Outside Basis A partner can have a negative capital account and still hold positive basis because their share of partnership debt keeps basis afloat. Once basis hits zero, no further losses are deductible until it is rebuilt through contributions, allocated income, or an increased share of liabilities.
What the Partnership Has to Report
Partnerships file Form 1065 annually and issue a Schedule K-1 to each partner. Item L of the K-1 reports each partner’s beginning and ending capital account balances on the tax basis method, along with contributions during the year, the partner’s share of net income or loss, and distributions received.2Internal Revenue Service. Partner’s Instructions for Schedule K-1 (Form 1065)
Schedule M-2 of Form 1065 reconciles the total of all partners’ capital accounts from year beginning to year end, showing what caused the change.9Internal Revenue Service. Instructions for Form 1065 The ending Schedule M-2 total should equal the sum of ending Item L balances across all K-1s.
Reporting errors carry penalties. For returns due in 2026, each incorrect or late Schedule K-1 costs $60 if corrected within 30 days, $130 if corrected by August 1, and $340 if filed after August 1 or not at all.10Internal Revenue Service. Information Return Penalties Intentional disregard raises the per-return penalty to $680. Multiply by the number of partners and the numbers get serious.
Selling an Interest or Dissolving the Business
When a partner sells their interest, the seller’s capital account doesn’t transfer to the buyer at face value. The buyer’s initial outside basis equals what they paid (cash plus assumed liabilities), not the seller’s old capital account balance. The capital account tracks equity in the books; basis tracks the buyer’s tax investment. They serve different jobs, and the buyer’s tax picture is set by the purchase, not by what the seller’s ledger said.
Dissolution puts capital accounts front and center. In liquidation, each partner generally receives assets equal to their positive capital account balance. Partners with negative balances may owe cash back under a deficit restoration obligation.
A liquidating distribution isn’t automatically taxable. Gain is recognized only to the extent cash distributed exceeds the partner’s outside basis immediately before the distribution.6Office of the Law Revision Counsel. 26 U.S. Code 731 – Extent of Recognition of Gain or Loss on Distribution Property received in liquidation generally takes a basis equal to the partner’s remaining outside basis, which can differ from the property’s fair market value. A loss is recognizable only when the partner receives nothing but cash, unrealized receivables, or inventory, and only to the extent outside basis exceeds what was received.11Internal Revenue Service. Liquidating Distribution of a Partner’s Interest in a Partnership
Because dissolution puts both the capital account and outside basis in play at once, reconcile both figures well before the final distribution. That’s where surprises live.