When a company’s deductible expenses exceed its income, generally a net operating loss (NOL) occurs. If when filing your 2017 income tax return you found that your business had an NOL, there is an upside: tax benefits. But beware — the Tax Cuts and Jobs Act (TCJA) makes some significant changes to the tax treatment of NOLs. Pre-TCJA law Under pre-TCJA law, when a business incurs an NOL, the loss can be carried back up to two years, and then any remaining amount can be carried forward up to 20 years. The carryback can generate an immediate tax refund, boosting cash flow. The business can, however, elect instead to carry the entire loss forward. If cash flow is strong, this may be more beneficial, such as if the...