Partnership Basis: Inside vs Outside Basis (CPA REG)
Partnership Basis: Inside vs Outside Basis Explained (CPA REG)
Outside basis limits a partner's deductible losses and controls distribution gains; inside basis tracks the partnership's own assets. The rule that separates partnerships from every other entity on REG is that a partner's outside basis includes a share of partnership liabilities.
Area V · 23–33% Application & Analysis IRC §704 · §722 · §752Quick answer: Outside basis is a partner's tax basis in their partnership interest; inside basis is the partnership's basis in its assets. Outside basis begins with cash contributed plus the carryover basis of property contributed plus the partner's share of partnership liabilities under IRC §752. It rises with the partner's share of income (including tax-exempt income) and any increase in liabilities, and falls with distributions, the share of losses and non-deductible expenses, and any decrease in liabilities — never below zero. A partner deducts losses only up to outside basis.
Inside basis versus outside basis
Inside and outside basis measure two different things, and keeping them apart is half the battle. Outside basis is what the partner owns — their tax basis in the partnership interest. Inside basis is what the partnership owns — its tax basis in each asset it holds. When a partnership is formed with contributed property, the two are usually equal in aggregate, because the partnership takes the property at the partner's carryover basis. They drift apart later — for example when an interest is sold, a partner dies, or the partnership makes an IRC §754 election to adjust inside basis for a new partner.
How outside basis is built
A partner's opening outside basis is the cash contributed plus the adjusted basis — not the fair market value — of any property contributed. That carryover basis brings the partner's original holding period with it. From there, outside basis moves every year with the partnership's activity and its debt.
| Increases outside basis | Decreases outside basis |
|---|---|
| Cash and carryover basis of property contributed | Cash and property distributed (at partnership basis) |
| Share of taxable income and tax-exempt income | Share of losses (including capital losses) |
| Increase in the partner's share of liabilities (§752) | Decrease in the partner's share of liabilities (§752) |
| Excess depletion deductions | Share of non-deductible, non-capital expenditures |
The §752 mechanic. An increase in a partner's share of partnership liabilities is treated as a deemed cash contribution and adds to outside basis. A decrease — including the partnership paying down debt, or another partner assuming a liability — is a deemed cash distribution that reduces outside basis. Recourse debt is generally allocated by the loss-sharing ratio; a partner gets no basis for liabilities on which they bear no economic risk.
Worked example. Arjun contributes $20,000 cash and equipment with a $30,000 adjusted basis and a $50,000 fair market value for a 25% interest.
· Opening outside basis = $20,000 + $30,000 carryover = $50,000 (not $70,000 — fair market value is irrelevant here).
· The partnership carries the equipment at $30,000 inside basis (carryover under §723).
· The partnership then takes on $100,000 of recourse debt; Arjun's 25% share adds $25,000 under §752.
· Outside basis = $50,000 + $25,000 = $75,000.
If the partnership later repays that debt, Arjun's $25,000 share reverses as a deemed distribution, reducing his outside basis — and if it falls below zero, he recognises gain.
The loss limitation
A partner may deduct a distributive share of partnership loss only up to outside basis. Because outside basis includes the partner's share of liabilities, a partner can often deduct more loss than they contributed in cash — one reason partnerships are attractive for loss pass-through. Losses beyond basis are suspended and carried forward until basis is restored. As with S corporations, the basis limit is applied first, then the at-risk rules, then the passive activity loss rules. For a limited partner, liabilities on which they bear no personal risk do not build the basis that absorbs losses.
The distinction examiners set traps on: partners add their share of partnership liabilities to outside basis under §752; S corporation shareholders never get basis for the corporation's debt unless they lend the money directly. The same $100,000 bank loan that raises a partner's basis does nothing for an S corporation shareholder. Any question that gives you an entity with debt is usually testing whether you know which entity you are in.
Contributions of services and appreciated property
Contributing property for a partnership interest is generally tax-free under IRC §721 — no gain or loss to the partner or the partnership. Two exceptions recur on the exam. First, a partner who receives a capital interest for services recognises ordinary income equal to the fair market value of that interest. Second, if the partnership distributes a partner's contributed appreciated property to a different partner within seven years, the contributing partner must recognise the pre-contribution built-in gain.
Outside basis = cash + carryover basis of property + share of liabilities, adjusted for income, losses, and distributions. The liability share is the single rule that most cleanly separates partnership taxation from S corporations.
Frequently asked questions
Is outside basis the fair market value of what I contributed?
No. Contributed property carries over at the partner's adjusted basis, not fair market value, under IRC §722 and §723. Using fair market value is one of the most common wrong answers on partnership formation questions.
Why does partnership debt increase my basis but S corporation debt does not?
Partners bear economic risk for partnership liabilities, so §752 treats a share of that debt as a deemed cash contribution that raises outside basis. S corporation shareholders are shielded by the corporate form and get debt basis only from loans they make directly to the corporation.
Do I recognise gain on a cash distribution?
Only when the cash distributed exceeds your outside basis. Up to basis, a cash distribution is a tax-free return of capital that simply reduces basis. Property distributions generally carry over the partnership's basis and rarely trigger immediate gain.
When do inside and outside basis diverge?
They start equal at formation but separate when an interest changes hands — for instance a partner buys in at fair market value while the partnership keeps historical asset basis. A §754 election lets the partnership adjust inside basis to re-align the two for the incoming partner.
Surgent CPA Review, available through Eduyush for ₹32,000, walks partnership basis and §752 allocations through worked simulations — part of 9,000+ MCQs and 500+ simulations, with ReadySCORE flagging when your Area V mechanics are exam-ready.
Explore the CPA courseDeciding which state board, review course, or exam order fits your timeline? Talk to the Eduyush team on WhatsApp at +91 96433 08079.
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