Deferred tax is essentially a tax that a company expects to pay or save in the future but has been recorded on its current financial statements. Think of it as an accounting IOU between a company and the tax authorities. It arises because the rules for reporting profits to investors (GAAP in the U.S. or IFRS internationally) are different from the rules for reporting taxable income to the government (like the IRS in the U.S.). For example, a company might tell its shareholders it earned $10 million, but due to different tax rules, it only tells the taxman it earned $7 million for the year. The tax on that “missing” $3 million doesn't just disappear; it gets recorded as a deferred tax liability, a bill that will likely come due in a future period. This mismatch is temporary, but for growing companies, these “temporary” differences can persist for many years, making deferred tax a fascinating and crucial area for investors to understand.
The entire concept of deferred tax boils down to one thing: timing. Companies effectively keep two sets of books—one for you, the investor, and one for the tax collector. The differences between these two sets of books create either a future tax bill (a liability) or a future tax refund (an asset).
The most common source of deferred tax is Depreciation. Imagine a company buys a new machine for $1 million with a useful life of 10 years.
In Year 1, the company reports a higher profit to investors (only $100k depreciation expense) but a lower profit to the tax office ($200k depreciation expense). This means it pays less tax today than what its investor-facing profit figures would imply. That tax saving isn't a gift; it's a loan from the government. The company records this future obligation as a Deferred Tax Liability on its Balance Sheet.
Deferred taxes can cut both ways.
Understanding deferred tax isn't just an accounting exercise; it offers deep insights into a company's quality and true earning power.
This is where the value investing perspective gets interesting. Legendary investor Warren Buffett has pointed out that for a consistently growing company, a Deferred Tax Liability can function more like a permanent, interest-free loan from the government than a true debt that must be repaid. Why? A growing company is always buying new assets. As the old assets' deferred taxes come due, the company is already generating new and larger deferred taxes from its new investments. The result is that the total DTL balance on the balance sheet may never shrink—in fact, it often grows! In this scenario, the DTL is a fantastic source of interest-free capital that the company can use to fund its growth. However, for a stagnant or shrinking business, this liability is very real and can result in significant cash outflows as the timing differences reverse without new ones to replace them.
Don't just look at the total DTL or DTA on the balance sheet. The real gold is in the footnotes of the company's annual report (like the 10-K in the US). Here, the company must break down the sources of its deferred tax items.
To wrap it up, here's the bottom line for investors: