What Is a Net Operating Loss (NOL)

For income tax purposes, a net operating loss (NOL) is the result when a company's allowable deductions exceed its taxable income within a tax period. The NOL can generally be used to offset the company's tax payments in other tax periods through an Internal Revenue Service (IRS) tax provision called a loss carryforward.

Key Takeaways

  • A net operating loss (NOL) exists if a company's deductions exceed taxable income.
  • A NOL can benefit a company by reducing taxable income in future tax years.
  • The Tax Cuts and Jobs Act made significant changes to NOL rules for tax years beginning in 2018.
  • NOLs may now be carried forward indefinitely until the loss is fully recovered, but they are limited to 80% of the taxable income in any one tax period.
  • Section 382 limits the carryforward a company can use if it acquires another company with a previous NOL.

How a Net Operating Loss (NOL) Is Used

A net operating loss (NOL) may be carried forward to offset taxable income in future years in order to reduce a company's future tax liability. The purpose behind this tax provision is to allow some form of tax relief when a company loses money in a tax period. The IRS recognizes that some companies' business profits are cyclical in nature and not in line with a standard tax year.

For example, a farming business may have significant profits and a large tax payment in one year, then incur a NOL in the next, followed by another profitable year. In order to smooth the tax burden, the loss carryforward provision allows for the NOL in the second year to offset taxes due in the third year.

Requirements for a Net Operating Loss Carryforward

Prior to the implementation of the Tax Cuts and Jobs Act (TCJA) in 2018, the Internal Revenue Service (IRS) allowed businesses to carry net operating losses (NOL) forward 20 years to net against future profits or backwards two years for an immediate refund of previous taxes paid. Because the time value of money shows that tax savings in the present are more valuable than in the future, the carryback method was the more beneficial choice. After 20 years, any remaining losses expired and could no longer be used to reduce taxable income.


The Tax Cuts and Jobs Act has removed the two-year net operating loss (NOL) carryback provision, but now allows for an indefinite NOL carryforward period.

For tax years beginning January 1, 2018 or later, the TCJA has removed the two-year carryback provision, except for certain farming losses, but now allows for an indefinite carryforward period. However, the carryforwards are also now limited to 80% of each subsequent year's net income. If a business creates NOLs in more than one year, they are to be drawn down completely in the order that they were incurred before drawing down another NOL. Losses originating in tax years beginning prior to January 1, 2018 are still subject to the former tax rules and any remaining losses will still expire after 20 years.

NOL carryforwards are recorded as an asset on the company's general ledger. They offer a benefit to the company in the form of future tax liability savings. A deferred tax asset is created for the NOL carryforward, which is offset against net income in future years. The deferred tax asset account is drawn down each year, not to exceed 80% of net income in any one of the subsequent years, until the balance is exhausted.

Limitation of Net Operating Loss Carryforwards

A net operating loss (NOL) is a valuable asset because it can lower a company’s future taxable income. For this reason, the IRS restricts using an acquired company simply for its NOL’s tax benefits. Section 382 of the Internal Revenue Code states that if a company with a NOL has at least a 50% ownership change, the acquiring company may use only part of the NOL in each concurrent year. However, purchasing a business with a substantial NOL may mean a larger sum of money going to the acquired company’s shareholders than if the acquired company possessed a smaller NOL.

Example of a Net Operating Loss Carryforward

Imagine a company had an NOL of $5 million one year and had taxable income of $6 million the next. The carryover limit of 80% of $6 million is $4.8 million. The full loss from the first year can be carried forward on the balance sheet to the second year as a deferred tax asset. The loss, limited to 80% of income in the second year, can then be used in the second year as an expense on the income statement. It lowers net income, and therefore the taxable income, for the second year to $1.2 million ($6 million - $4.8 million). A $200,000 deferred tax asset will remain on the balance sheet to be carried into the third year.