Inside Basis

What is inside basis?

Inside basis is the partnership's tax basis in the assets it owns. Outside basis measures what a partner has in their interest; inside basis measures what the firm has in its property. The two normally start equal and drift apart when interests change hands. That gap is the reason certain elections and adjustments exist, and it matters most when a partner is bought out or admitted.

How the inside and outside gap opens

When a partner sells their interest to someone new, the buyer's outside basis equals what they paid. The partnership's inside basis in its assets does not change. If the firm's assets appreciated, the new partner now holds basis in their interest that is not reflected in the assets, so they could be taxed again on gain already paid for. Death of a partner creates the same mismatch when the heir receives a stepped-up interest.

Closing the gap with a 754 election

A Section 754 election lets the partnership adjust inside basis for the incoming partner, aligning their share of asset basis with what they paid. Without it, the mismatch sits there until the assets are sold. For a service firm with few hard assets the dollars may be small, but firms holding real estate, equipment, or significant intangibles should always examine the election when an interest changes hands.