Capital Account vs Outside Basis: Why Are the Numbers Different?
A partner's capital account measures an ownership-accounting concept. Outside basis is the partner's tax basis in the partnership interest.
Capital account
The capital account tracks the partner's economic or tax capital under the applicable reporting method and partnership records.
Outside basis
Outside basis is the partner's tax basis in the partnership interest and drives tax consequences for losses, distributions, and disposition.
Liabilities
A partner's share of partnership liabilities can increase outside basis without producing the same capital-account effect.
Why the distinction matters
Using the wrong balance can cause incorrect answers for deductible losses, tax-free distributions, and gain recognition.
The takeaway
Do not use capital account as a substitute for outside basis. Liabilities and tax-specific adjustments can make the two numbers materially different.
Related Summit guides
FAQ
Are capital account and outside basis always equal?
No.
Can partnership liabilities increase outside basis?
Yes.
Which amount matters for loss limitations?
Outside basis is a key tax limitation.