1Initial StructurePropertyFMV = $10,000Basis = $4,000Subject to Mortgageof $2,000APartnersPartnership2ContributionPropertyworth $10,000(net valueof $8,000)20% interestin partnership& assumptionof liabilityAPartnersPartnership3Ending PointAPartnersPartnershipBasis of A's interest in the partnership = $2,400Adjusted basis to A of property contributed$4,000Less portion of mortgage assumed by other partners treated as a distribution (80 percent of $2,000)1,600Basis of A’s interest2,400LegendOwnership / structural holdingTransfer of stock / cash / assets

Contributed Property Subject to Debt Explained

A acquires a 20-percent interest in a partnership by contributing property to it. At the time of the contribution the property has a fair market value of 10,000, an adjusted basis to A of 4,000, and is subject to a mortgage of 2,000. The partnership assumes payment of the mortgage, so A contributes property with a net value of 8,000.

Under section 722, a contributing partner’s basis in the partnership interest generally equals the adjusted basis of the contributed property. That starting basis is 4,000. But when the partnership assumes a liability of the contributing partner, section 752(b) treats the portion of the debt shifted to the other partners as a deemed cash distribution to the contributing partner, which reduces basis under section 733.

Here the other partners bear 80 percent of the 2,000 mortgage — the 80-percent share of partnership liabilities held by the noncontributing partners. That 1,600 is treated as a distribution of money to A. Subtracting the 1,600 deemed distribution from the 4,000 carryover basis leaves A with a basis in the partnership interest of 2,400.

Key Takeaways

Start with carryover basis

Under section 722, A’s basis in the partnership interest begins as the adjusted basis of the contributed property — 4,000 — not its 10,000 fair market value.

Assumed debt is a deemed distribution

When the partnership assumes A’s 2,000 mortgage, the portion of the liability shifted to the other partners is treated under section 752(b) as a distribution of money to A.

Only the other partners’ share reduces basis

The other partners bear 80 percent of the 2,000 mortgage, so 1,600 is treated as a distribution to A; A’s own 20-percent share of the debt does not reduce basis.

Resulting interest basis is 2,400

Subtracting the 1,600 deemed distribution from the 4,000 carryover basis leaves A with a 2,400 basis in the 20-percent partnership interest.