Banking a Loss to Use Against a Future Profit
A company that loses money can carry the loss forward to offset future profits, reducing tax when it eventually earns. This smooths taxes over time and makes past losses a valuable asset.
A Loss That Is Worth Something Later
When a company loses money, it pays no tax that year, since there is no profit to tax. But the loss can be worth something beyond that: through a net operating loss carryforward, the company can carry the loss forward to future years and use it to offset future profits, reducing the tax it pays when it eventually earns.
This turns a past loss into a valuable asset. A company that lost money and then becomes profitable can use its banked losses to shelter the later profits from tax, paying less tax than a company that had always been profitable. The carryforward smooths taxes over time, recognizing that a company profitability should be measured over years, not a single year, and it makes past losses an asset that reduces future taxes.
The loss is not just a bad year. It is a stored deduction, an asset that waits to shelter future profits, which is why a company's accumulated losses can be genuinely valuable.
Why It Makes Sense
The carryforward exists because taxing a single year in isolation would unfairly penalize companies with volatile income compared to those with steady income. Consider two companies that earn the same total profit over two years: one earns steadily, the other loses money then earns a lot.
| Company | Year 1 | Year 2 | Total |
|---|---|---|---|
| Steady | Profit | Profit | Same total |
| Volatile | Loss | Large profit | Same total |
Without a carryforward, the volatile company would pay tax on its large second year profit while getting no benefit from its first year loss, paying more total tax than the steady company despite the same total profit. The carryforward corrects this by letting the volatile company use its loss to offset the later profit, equalizing the tax over time. This makes the tax system fairer across companies with different income patterns, recognizing that a loss in one year genuinely offsets profit in another, and it is why the carryforward is a standard feature of tax systems.
The Value as an Asset
Because carryforwards reduce future taxes, they are a genuine asset, and companies record them on their balance sheets as deferred tax assets, reflecting the future tax savings the losses will provide. A company with large accumulated losses has a valuable asset in the form of the future taxes those losses will shelter, provided it becomes profitable enough to use them.
This value depends on the company earning future profits to offset, since a carryforward is only useful if there is future profit to apply it against. A company that never returns to profit cannot use its carryforwards, so their value depends on the prospect of future profits. Companies also often face limits on how long losses can be carried forward and how much can be used per year, which affects their value. The carryforwards are recorded as assets to the extent they are expected to be usable, and a company that doubts it will earn enough to use them must reduce the recorded asset, reflecting that the value depends on future profitability.
The Acquisition Angle
Because carryforwards are valuable, they can make a loss making company attractive to acquire, since a profitable acquirer might use the target accumulated losses to shelter its own profits. This created a temptation to buy companies mainly for their tax losses, acquiring a loss maker to use its carryforwards against the buyer profits.
Tax authorities restrict this, however, with rules that limit the use of carryforwards after a company changes ownership, precisely to prevent acquisitions made mainly to capture tax losses. These rules limit how much of an acquired company losses the buyer can use, reducing the incentive to buy companies for their losses alone. The restrictions reflect the tax authorities view that carryforwards should shelter the profits of the business that generated the losses, not be traded to shelter unrelated profits, so the value of carryforwards to an acquirer is limited by these rules, which prevent the losses from being freely transferable tax assets.
The Bottom Line
Net operating loss carryforwards let a company carry a loss forward to offset future profits, turning a past loss into a valuable asset that reduces future taxes and smooths taxes over time. The provision makes the tax system fairer by equalizing taxes across companies with volatile and steady income that earn the same total, recognizing that losses genuinely offset later profits. The carryforwards are recorded as assets to the extent they are expected to be used, their value depending on future profitability, and their use after an ownership change is restricted to prevent companies being acquired mainly to capture their tax losses.