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Net Operating Loss (NOL)

Step-by-Step Guide to Understanding the Net Operating Loss (NOL) Concept

Last Updated December 31, 2023

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Net Operating Loss (NOL)

How to Calculate Net Operating Losses (NOLs)

NOLs are tax credits carried forward to offset positive taxable profits, which reduces future income taxes.

A net operating loss (NOL) is created when the allowable tax-deductible expenses of a company exceed its pre-tax income (earnings before taxes, or “EBT”).

If the company becomes profitable later down the road, the NOLs can be “carried forward” to reduce the tax burden in upcoming profitable periods.

Since the IRS can neither force unprofitable companies to pay taxes nor compensate them for their losses, the IRS allows for NOLs to be recorded, which can then be applied against future taxable income.

Note that an NOL carry-forward is typically more profitable when used sooner rather than later due to the “time value of money” concept, as the tax savings hold more value earlier than in later periods.

NOLs and Deferred Tax Assets (DTAs)

The cumulative losses incurred by a company and the tax credits received form the concept behind net operating losses (NOLs).

If NOLs are “carried forward,” a new line item is created on the balance sheet called deferred tax assets, or “DTAs.”

Since the company has been operating at a loss historically, it can now reduce its cash taxes using NOLs in the future.

However, the tax benefit — i.e., the NOLs offset some of the taxes in the future — is not realized until the company actually turns a profit.

Deferred Tax Assets (DTA) = Net Operating Loss (NOL) × Tax Rate (%)
  • DTA Increase → On the balance sheet, if the DTA line item increases, that means the accumulated NOLs balance has increased due to further losses.
  • DTA Decrease → If the DTA balance decreases on the B/S, the company reaps the benefits of NOLs and uses them to reduce its taxes, which increases its free cash flows (FCFs).
NOLs vs. DTAs: What is the Difference?

One misconception is that NOLs and DTAs are interchangeable terms with equivalent values.

Instead, the DTA captures the potential tax savings from NOLs while the NOL is multiplied by the tax rate.

Net Operating Losses (NOLs) — TCJA CARES Act (2020)

The CARES Act, enacted in March 2020 for economic relief related to COVID-19, provided a temporary five-year NOL carry-back for certain taxpayers, resulting in tax refunds.

However, the Tax Cuts and Jobs Act of 2017 (TCJA) prohibited the carryback of NOLs, but in return, taxpayers were allowed to carry forward NOLs indefinitely.

Prior to the TCJA, taxpayers could carry back NOLs for two years, carry forward NOLs for 20 years maximum, and use NOLs to offset up to 100% of taxable income — but following TCJA guidance, the ceiling was capped at 80% of taxable income.

As of 2021, NOLs arising in the tax years between 2018 and 2020 can be carried back for five years and carried forward indefinitely.

Net Operating Losses (NOLs) Pre-TCJA TCJA CARES Act
NOL Carry-Backs
  • 2 Years
  • Prohibited
  • NOLs Incurred Between 2018 to 2020 → Five Years
NOL Carry-Forwards
  • 20 Years
  • Indefinite
  • Indefinite
Limitations on NOL Deductions
  • 100% of Taxable Income
  • 80% of Taxable Income
  • NOLs from 2018 to 2020 → 100% of Taxable Income
  • NOLs Post-2020 → 80% of Taxable Income
What is the Role of NOLs in M&A?

Contingent on how the deal was structured, the acquirer typically assumes the NOLs belong to the target. The monetary benefits to the acquirer are capped at an annual limit, which is a function of the purchase price multiplied by the long-term tax-exempt rate.

Target NOLs can be used to offset the seller’s gain on sale since the 2017 Tax Reform has been set at 80% of the target’s taxable income (TCJA).

Net Operating Loss Calculator (NOL)

We’ll now move to a modeling exercise, which you can access by filling out the form below.

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Net Operating Losses Calculation Example (NOLs)

For our illustrative modeling exercise, our company has the following assumptions.

  • Taxable Income 2017 to 2018 = $250k
  • Taxable Income in 2019 = Negative $1m
  • Tax Rate = 21%

From these assumptions, the NOLs are equal to $1m in 2019 since the NOLs carry-back is calculated as the sum of the taxable incomes from the prior two years.

  • NOLs Carry-Back = $250k + $250k = $500k

Furthermore, the tax savings can be calculated by multiplying the sum of the NOL carry-back and carry-forward by the tax rate assumption.

Net Operating Losses (NOLs) Calculation Example

For each fiscal year, the ending balance of the NOLs can be calculated from the following steps:

  • NOLs Beginning Balance
  • Plus: NOLs Generated (Current Period)
  • Less: NOLs Carry-Back
  • Less: NOLs Carry-Forward
  • NOLs Ending Balance

In 2019, the NOLs carry-back equals $500k, which is calculated by adding up the taxable income balances from the prior two years.

For the remaining operating assumptions, the taxable income is held constant at $200k from 2020 to 2022.

The NOLs carry-forward amounts are calculated using the following formula in Excel.

NOL Carry Forward Schedule

For each period, we add up the beginning NOLs balance, NOLs generated in the current period, and the NOLs carry-back amount to calculate the ending NOLs balance.

In conclusion, we can see the tax benefits gradually decline following the period of unprofitability in 2019. By 2022, the NOL ending balance reverses (i.e., returns to zero) as the tax savings from the NOLs decline from $105k in 2019 to $21k.

Net Operating Loss Calculator

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