allocated to him. Immediately prior to the disposition of common units, a unitholders tax basis in such common units will be increased by the amount of any excess business interest that has not been deducted by him due to applicable limitations. Please read —Limitations on Interest Deductions below. A unitholder will have a share of our nonrecourse liabilities generally based on Book-Tax Disparity (as described in —Allocation of Income, Gain, Loss and Deduction) attributable to such unitholder, to the extent of such amount, and thereafter, such unitholders share of our profits. Please read —Disposition of Common Units—Recognition of Gain or Loss.
Limitations on Deductibility of Losses
The deduction by a unitholder of his share of our losses will be limited to the lesser of (1) the unitholders tax basis in his common units and (2) the amount for which the unitholder is considered to be at risk with respect to our activities. A unitholder subject to these limitations must recapture losses deducted in previous years to the extent that distributions cause the unitholders at risk amount to be less than zero at the end of any taxable year. Losses disallowed to a unitholder or recaptured as a result of these limitations will carry forward and will be allowable as a deduction in a later year to the extent that the unitholders at risk amount is subsequently increased, provided such losses do not otherwise exceed the unitholders tax basis in his common units. Upon the taxable disposition of a common unit, any gain recognized by a unitholder can be offset by losses that were previously suspended by the at risk limitation but may not be offset by losses suspended by the basis limitation. Any loss previously suspended by the at risk limitation in excess of that gain is no longer utilizable.
In general, a unitholder will be at risk to the extent of the tax basis of his common units, excluding any portion of that basis attributable to his share of our nonrecourse liabilities, reduced by (1) any portion of that basis representing amounts otherwise protected against loss because of a guarantee, stop loss agreement or other similar arrangement and (2) any amount of money the unitholder borrows to acquire or hold his common units, if the lender of those borrowed funds owns an interest in us, is related to another unitholder, or can look only to the common units for repayment. A unitholders at risk amount will increase or decrease as the tax basis of his common units increases or decreases, other than tax basis increases or decreases attributable to increases or decreases in his share of our nonrecourse liabilities.
In addition to the basis and at risk limitations on the deductibility of losses, the passive loss limitations generally provide that individuals are permitted to deduct losses from passive activities, which are generally trade or business activities in which the taxpayer does not materially participate, only to the extent of the taxpayers income from those passive activities. The passive loss limitations are applied separately with respect to each publicly traded partnership. Consequently, any passive losses we generate will only be available to offset our passive income generated in the future and will not be available to offset income from other passive activities or investments, including our investments or the unitholders investments in other publicly traded partnerships, or a unitholders salary or active business or other income. Passive losses that are not deductible because they exceed a unitholders share of income we generate may be deducted in full when the unitholder disposes of his entire investment in us in a fully taxable transaction with an unrelated party. The passive activity loss limitations are applied after other applicable limitations on deductions, including the at risk rules and the basis limitation.
A unitholders share of our net income may be offset by any of our suspended passive losses, but it may not be offset by any other current or carryover losses from other passive activities, including those attributable to other publicly traded partnerships.
For taxpayers other than corporations in taxable years beginning after December 31, 2017, and before January 1, 2026, an excess business loss limitation further limits the deductibility of losses by such taxpayers. An excess business loss is the excess (if any) of a taxpayers aggregate deductions for the taxable year that are attributable to the trades or businesses of such taxpayer (determined without regard to the excess business loss limitation) over the aggregate gross income or gain of such taxpayer for the taxable year that is attributable to such trades or businesses plus a threshold amount. The threshold amount is equal to $250,000, or $500,000 for taxpayers filing a joint return. Disallowed excess business losses are treated as a net operating loss carryover to the following tax year. Any losses we generate that are allocated to a unitholder and not otherwise limited by the basis, at risk, or passive loss limitations will be included in the determination of such unitholders aggregate trade or business deductions. Consequently, any losses we generate that are not otherwise limited will only be available to offset a unitholders other trade or business income plus an amount of non-trade or business income equal to the applicable threshold amount. Thus, except to the extent of the threshold amount, our losses that are not otherwise limited may not offset a unitholders non-trade or business income (such as salaries, fees, interest, dividends and capital gains). This excess business loss limitation will be applied after the passive activity loss limitation.