You can only deduct losses from an S corporation, partnership or LLC if you “materially participate” in the business. If you don’t, your losses are generally “passive” and can only be used to offset income from other passive activities. Any excess passive loss is suspended and must be carried forward to future years.
When the deductible expenses of a business exceed its income, a net operating loss (NOL) generally occurs. If you’re planning ahead or filing your income tax return after an extension request and you find that your business has a qualifying NOL, there’s some good news: The loss may generate some tax benefits.
The top alternative minimum tax (AMT) rate is 28%, compared to the top regular ordinary-income tax rate of 39.6%. But the AMT rate typically applies to a higher taxable income base and will result in a larger tax bill if you’re subject to it.