Chapter 18: Accounting for Income Taxes

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You know, we often hear that quote, Benjamin Franklin's line,

nothing is certain except death and taxes.

Right, classic.

Yeah, but when you look into corporate accounting, well, even taxes aren't quite that simple, are they?

There's a whole lot going on beneath the surface.

Oh, absolutely.

Gets pretty intricate.

So today we're really going to dig into accounting for income taxes.

We're drawing directly from a key chapter in Kiso, Wagant, and Warfield's Intermediate Accounting Textbook.

A cornerstone text for this topic.

Definitely.

And our goal here is, well, to cut through that complexity.

Make corporate income accounting clear,

practical,

and really relevant for you.

We want to give you that shortcut to understanding the what, the why, and the how.

Focusing on how it actually plays out in the real world in financial reports.

Exactly.

So let's start right there.

Why?

Why is this such a big deal for companies?

I mean, isn't it just earn money, pay tax?

You'd think so, wouldn't you?

But it's often one of the single largest cash payments a company makes each year.

And the why it's complicated boils down to a fundamental conflict.

Conflict?

How so?

Well, you've got financial statements, right?

Based on gap.

They're for investors, creditors, stakeholders.

They use the accrual basis to show performance matching revenues and expenses when they happen, not just when cash changes hands.

Okay.

So that's the investor view.

Right.

Then you've got tax returns.

They're for the government, specifically the IRS and the U .S.

Their main goal is revenue generation.

And their rules, the tax code, often lean more towards a cash basis, or at least have very specific timing rules that differ from gap.

Ah, so different purposes, different rules makes different income numbers.

Precisely.

The income reported on the financial statements often doesn't match the taxable income reported to the IRS in the same year.

And these aren't trivial differences, I imagine.

The source mentioned proctor and gamble.

Yeah, that's a striking example.

PNG actually paid $3 .5 billion in taxes one year.

But on their gap income statement, the reported income tax expense was only $2 .7 billion.

Wow, that's an $800 million gap.

That's that's not small change.

That's a serious puzzle.

It's a huge puzzle.

Yeah.

And that $800 million difference is exactly what this accounting tries to explain and manage.

It really comes down to two main types of differences causing this gap.

Permanent differences and the really crucial ones, temporary differences.

Okay, permanent and temporary.

Yeah.

And it's those temporary differences that create what we call deferred tax assets and deferred tax liabilities.

That's really the heart of it.

All right, let's focus on those temporary differences then.

They sound like the key to unlocking that PNG mystery.

What exactly are they?

So a temporary difference is basically a gap.

It's the difference between the value of an asset or liability according to tax rules, its tax basis, and its value on the company's books under gap, its carrying value.

Okay, a gap between book value and tax value.

Exactly.

And the key word is temporary.

These differences arise because of timing and they will reverse in future years.

Eventually the accounting catches up, so to speak.

Okay, timing differences that reverse.

Make sense.

We can split them into two main types.

First, you have differences that lead to future taxable amounts.

These create deferred tax liabilities or DTLs.

Future taxable amounts.

DTLs.

How does that happen?

This happens when a company recognizes income on its financial statements before it recognizes that same income on its tax return.

Think accrual versus cash sometimes.

Like recognizing revenue when earned, but only paying tax when the cash arrives.

Precisely.

The book example, Chelsea Inc, is good here.

Let's say they use accrual for their books, recognizing $130 ,000 revenue annually.

But for taxes, maybe they use cash basis.

So taxable income fluctuates based on collections, say $100 ,000 one year, $150 ,000 of the next.

So Chelsea might report, say, $70 ,000 pre -tax financial income every year consistently, but their taxable income bounces around.

That difference, maybe accounts receivable sitting there at year end from revenue they've booked but haven't collected cash for yet.

That income has been counted for gap, but not yet taxed.

It represents a future taxable amount.

Ah, okay.

So because they've booked the income but haven't paid tax on it yet, they effectively owe tax on it in the future when the cash comes in.

Exactly right.

That future tax obligation is the deferred tax liability.

It represents the increase in taxes they expect to pay in future years because of these temporary differences that exist today.

So the income tax expense on the income statement isn't just the tax they owe now.

Correct.

Income tax expense includes both the current portion was payable this year and this deferred portion, the change in the DTL.

The DTL itself sits on the balance sheet as a liability, signaling those future cash outflows for taxes.

Got it.

Future taxable amounts lead to deferred tax liabilities.

What's the flip side?

Deferred tax assets.

That's the second type.

Differences leading to future deductible amounts.

These create deferred tax assets or DTAs.

Future deductible amounts.

DTAs.

When do these arise?

This usually happens when taxable income is higher now than financial income, or more commonly, when a company recognizes an expense for book purposes before it can deduct it for tax purposes.

So the expense hits the income statement now, but the tax break comes later.

Exactly.

Think about estimated warranty costs.

Cunningham Inc.

in the book example might accrue, say, $500 ,000 for future warranty expenses.

That hits their financial income now.

Matching principle.

But for tax, they can generally only deduct those costs when they actually pay for the repairs.

So the expense is booked, but the tax deduction is delayed.

That creates a future deductible amount.

Okay, so they'll get to deduct it later.

Yes.

Or look at a hunt company accruing a litigation loss.

They book the loss now, reducing financial income.

But it's not deductible for tax until it's actually paid out.

In both cases, when that expense finally is deductible in the future, their taxable income will be lower than it otherwise would have been.

That's a future tax saving.

So the deferred tax asset represents that future tax saving, a benefit the company expects to receive.

Precisely.

It represents the decrease in taxes payable in future years because of these existing deductible temporary differences.

On the income statement, the change in the DTA often creates a deferred tax benefit, which actually reduces the total income tax for the current period.

It reflects the future savings.

Okay, so DTLs are future payments, DTAs are future savings, and both are just about timing differences that will eventually wash out.

That's the core concept.

They arise because book and tax rules recognize things at different times, and they reverse when those timing differences unwind.

It really is like reconciling two different clocks, isn't it?

The gap clock and the IRS clock.

That's a great way to put it.

Deferred taxes are the mechanism to bridge that timing gap.

Okay, that clarifies temporary differences, but you also mentioned permanent differences.

What are those about?

They sound, well, permanent.

They are.

Unlike temporary differences, permanent differences affect either book income or taxable income, but never both.

And crucially, they never reverse.

Never reverse, so no deferred taxes involved.

Exactly.

Because there's no future reversal, there's no future tax consequence to account for.

They're just permanent gaps between book and tax income.

Can you give examples?

Sure.

A classic one is interest income from municipal bonds.

Company's included in their financial income, right?

But it's generally tax exempt for federal purposes.

So it's income for books, but never for tax.

Okay, that's clear.

Another common one, fines and penalties from violating laws.

There are an expense on the books, but the tax code says, nope, you can't deduct penalties.

Some book expense, but never a tax deduction.

Got it.

Life insurance premiums paid by the company on key employees where the company is the beneficiary or the proceeds received also often create permanent differences.

So these just create a permanent wedge between book income and taxable income.

That's right.

The biotech example in the text shows how you might reconcile pre -tax financial income down to taxable income, adjusting for both temporary differences, like maybe an installment sale and permanent ones, like those non -deductible insurance premiums.

And these differences, they explain why a company's actual tax rate paid isn't always the official statutory rate.

Precisely.

There are major reason why the effective tax rate, the actual tax expense divided by pre -tax financial income,

often deviates from the statutory federal rate, like 21 % currently in the U .S.

Okay, that makes sense.

Now, shifting gears slightly,

what about tax rates themselves?

What if the government changes the tax rate after a temporary difference starts, but before reverses?

That seems like it would complicate things.

Oh, it definitely does.

This is super important.

The rule is companies must use the tax rate that's been enacted into law and is expected to be in effect when the temporary difference reverses.

So you look forward to the rate that will apply when the timing difference unwinds based on current law, not the race when it started.

Exactly.

You use the future enacted rate.

The SolarCity example illustrates this well.

If a temporary difference reverses over, say, three years and Congress has already enacted different rates for those future years, you have to apply each specific future rate to the portion of the difference reversing in that specific year.

That sounds complex to track.

It can be.

And we saw a massive real -world example of this impact with the Tax Cuts and Jobs Act of 2017, the TCJA.

Right, that was huge.

It dropped the corporate rate from 35 % down to 21%.

How did that affect these deferred accounts?

Well, it was fascinating and kind of counterintuitive for some.

Companies that had large deferred tax assets suddenly saw the value of those assets plummet.

Wait, lower tax rates hurt companies with DTAs.

Why?

Because a DTA represents future tax savings from deductions.

If the tax rate drops,

those future deductions save you less money.

Citigroup, for example, took a massive charge, like $19 billion.

General Motors, about $7 billion.

Their expected future tax benefits literally shrank overnight because the rate at which they'd be realized went down.

Wow.

Okay, so lower rates are bad for DTAs.

What about DTLs?

Companies with large deferred tax liabilities, meaning large future tax payments, expected actually saw gains.

Wells Fargo reported a huge gain, something like $3 .9 billion.

Because the tax they expected to pay in the future when those temporary differences reversed was now going to be calculated at the lower 21 % rate instead of 35%.

Their future obligation decreased.

It really drove home how sensitive company valuations can be to tax law changes and these deferred balances.

Tax planning is critical.

Absolutely critical.

Okay, let's talk about losses.

What happens when things go wrong and a company has a net operating loss and a well, you know, tax deductions are greater than taxable revenues.

Obviously no tax paid that year.

But is there any other relief?

Yes.

NOLs are a really important area.

So year of the loss, zero tax payable.

But the tax code provides relief primarily through the loss carry forward.

Carry forward so they can use the loss later.

Exactly.

Under current law, companies can carry the NOL forward indefinitely to offset taxable income in future years.

So a loss this year can reduce taxes payable in future profitable years.

There used to be carry backs to applying losses to pass profits for refunds.

But TCJA mostly eliminated that though the cares act brought it back temporarily during the pandemic.

So the carry forward is the main game now.

How does that look on the books?

Well, that future tax saving potential from the NOL creates a deferred tax asset.

If Grow Inc has a $200 ,000 NOL and the tax rate is say 20%, that NOL represents a potential future tax saving of $40 ,000.

So they record a $40 ,000 DTA.

And that DTA actually helps the bottom line in the loss year.

It does, interestingly.

On the income statement in the year of the loss, you record a deferred tax benefit related to the NOL DTA.

This benefit actually reduces the loss.

It signals to investors, hey, even though we lost money, there's a potential future tax shield here.

Okay, that's the potential benefit.

But what if the company isn't sure it will actually have enough future taxable income to use that NOL carry forward?

How certain do they need to be?

Ah, now you've hit on a really crucial and often the subjective judgment call, the valuation allowance.

Valuation allowance sounds like a reduction.

It is.

So a company initially records the DTA for the full potential benefit of the NOL or other deductible temporary differences.

But they then have to assess whether it's more likely than not a probability threshold slightly above 50 % that they will actually realize some or all of that DTA.

More likely than not.

Okay.

So if it's questionable.

If based on all available evidence, like past losses, future projections, tax planning strategies, it seems more likely than not that they won't generate enough future taxable income to use the DTA, they have to record a valuation allowance.

This allowance is a contra -asset account.

It directly reduces the carrying value of the DTA on the balance sheet.

So it lowers the asset value.

Right.

Take Saris with a DTA from warranty costs.

If they forecast future losses, they might need a valuation allowance against that DTA.

Same for GrowInx NOL.

If realization is uncertain, they book a valuation allowance.

If they conclude it's more likely than not, they'll realize none of the benefit.

The valuation allowance would completely offset the DTA.

And what does that do to the income statement in the loss year?

If a valuation allowance is needed against an NOL DTA in the year the NOL occurs, it effectively wipes out the deferred tax benefit that would have reduced the net loss.

So the income statement reflects the full loss without any tax relief if realization is doubtful.

Wow.

So seeing a company build up a big valuation allowance is basically management saying, we're not too confident about future profits needed to use these tax assets.

That sounds like a pretty significant signal.

It's a huge signal.

It's very subjective, requires significant judgment, and auditors scrutinize it heavily.

Think about Citigroup.

Their huge $5 .1 billion valuation allowance was flagged as a critical audit matter.

Or Sony writing off $4 .4 billion in DPAs after a tsunami because future prospects dimmed.

It tells you a lot about management's outlook.

Definitely something to watch in the footnotes.

OK, so we've got the concepts.

Temporary versus permanent DTLs, DTAs, valuation allowances.

How does this all come together on the actual financial statements?

Where do we see this stuff?

Good question.

Let's look at presentation.

First, the balance sheet.

Income taxes currently payable show up as a current liability.

Any tax refund currently receivable is a current asset.

Pretty straightforward.

OK.

What about the deferred stuff?

Here's a key simplification from FASD.

All deferred tax assets and liabilities are netted together and classified as a single net current amount.

Even if some temporary differences reverse next year, the resulting DTA or DTL gets lumped into the non -current section.

So just one net number in the non -current section for all deferred taxes.

Yep.

Yellich Company in the book might have DTAs from warranties and DTLs from depreciation, but they'd all be netted into one non -current figure on the balance sheet.

Either a net DTA or a net DTL.

OK, balance sheet simplified.

What about the income statement?

You'll see a line for income before income taxes, then you'll see income tax expense, or sometimes provision for income taxes.

As we discussed, that expense line is generally the sum of two pieces.

The current tax expense, what's payable now, and the deferred tax expense or benefit.

The change in the net DTA detail during the period.

So the total expense reflects both the current bill and the change in future expectations.

Exactly.

It ties the income statement to the changes happening on the balance sheet in the deferred accounts.

But the real details are probably in the notes, right?

Absolutely.

The note disclosure is where you will find the breakdown.

Companies must disclose the total amount of deferred tax liabilities, total deferred tax assets, and the total valuation allowance.

So you can see the gross amounts before netting?

Yes, and you can also see the change in the valuation allowance from year to year, which is important.

Crucially, they also have to disclose the types of temporary differences in carry forwards that give rise to the significant parts of their DTAs and DTLs.

Like what specifically is causing these deferred amounts?

Right.

PepsiCo's note disclosure, for example, might show DTLs related to property, plant, and equipment due to different depreciation methods for a book versus tax.

And DTAs related to NOL carry forwards may be intangible assets or accrued liabilities.

This gives you insight into the underlying business activities driving the deferred taxes.

That sounds incredibly useful for analysis.

What else is key in the notes?

The tax rate reconciliation is vital.

Companies have to show a reconciliation, basically a walkthrough, from the U .S.

federal statutory tax rate, that 21%, to their effective tax rate for the year.

Why do they do that?

It helps users understand why the company isn't paying exactly 21 % or whatever the statutory rate is.

It highlights the impact of permanent differences, tax credits, state taxes, foreign tax rate differences, and sometimes big one -off items like adjustments due to the TCJA.

It helps assess the quality and sustainability of their earnings and tax rate.

Okay.

Explains deviations from the headline rate.

Exactly.

Also important is disclosure about NOL carry forwards.

Companies need to disclose the amounts and expiration dates, if any, of their NOLs.

PepsiCo, again, might disclose having billions in NOLs, some of which might expire in certain years, while others carry forward indefinitely.

This is huge because these NOLs can be very valuable, potentially shielding future income from tax, especially in an acquisition scenario.

Think of historical examples like Yahoo or Kmart, where NOLs were a big factor.

Right.

Valuable assets in themselves.

Anything else major in the notes.

One more complex area, often significant, is uncertain tax positions.

This gets into situations where a company has taken a stance on its tax return based on its interpretation of tax law, but it's not 100 % certain that the tax authorities will agree if they audit it.

So, questionable interpretations.

Potentially.

Yeah.

Gap requires companies to evaluate these positions.

If it's not more likely than not that the position would be sustained upon examination, the company cannot recognize the tax benefit in its financial statements.

Instead, they record a liability for this unrecognized tax benefit.

A liability for tax benefits they claimed but aren't confident about keeping.

Precisely.

Apple, for instance, has reported enormous amounts for unrecognized tax benefits, sometimes in the tens of billions.

It's a signal of aggressive tax planning or complex international tax issues where the outcome is uncertain.

It's a liability representing potential future cash outflows if challenged by tax authorities.

Wow.

Okay, so balance sheet, income statement, and especially the notes provide the full picture.

Right.

And the whole framework underpinning this is called the asset liability method.

Its goal is to recognize the current taxes, payable or refundable, and the future tax consequences, the DTAs and DTLs, of temporary differences in carry -forwards, measured using enacted tax laws, and adjusted by valuation allowances where needed.

That's a great summary of the U .S.

Gap approach, but we live in a global world.

How does this compare to International Financial Reporting Standard, IFRS?

Are they on the same page?

Good question.

There are definitely similarities but also some key differences.

The big similarity is that both GAP and IFRS, under IS -12, use the same fundamental asset liability approach for deferred taxes and both classify deferred taxes as non -current on the balance sheet.

So the basic framework is aligned.

Okay.

Coming round, where do they differ?

A major difference is in the philosophy behind deferred tax asset recognition.

IFRS uses what's called an affirmative judgment approach.

You only recognize a DTA to the extent it's probable that future taxable profit will be available against which the deductible temporary difference can be utilized.

Probable is generally seen as a higher threshold than GAP's more likely than not.

So IFRS is more conservative about booking DTAs up front.

You could say that.

GAP, remember, uses the impairment approach.

Recognize the DTA in full first, then assess if a valuation allowance is needed using the more likely than not, just over 50 % threshold.

So GAP recognizes then potentially reduces.

IFRS sets a higher bar for initial recognition.

It's a subtle but significant philosophical difference.

Interesting.

Any other key differences?

Yes.

A couple more.

Regarding tax rate application, IFRS allows using enacted rates or substantially enacted rates, meaning where the remaining steps for enactment are virtually certain.

GAP is stricter.

It requires rates to be fully enacted.

Okay.

Slight difference in timing for rate changes.

Right.

Also, IFRS sometimes requires or permits the tax effects of certain items, like revaluations of assets, to be recognized directly in equity, whereas GAP generally runs most tax effects through the income statement.

And for uncertain tax positions, IFRS generally requires recognizing a liability based on the expected value of the uncertainty without the specific more likely than not threshold that GAP uses for derecognition of benefit.

Measurement can also differ.

So while the core idea is similar, there are definite nuances between GAP and IFRS that could lead to different reported numbers for deferred taxes and tax expense.

Absolutely.

For multinational companies or analysts comparing companies across different reporting standards, those differences can be quite important to understand.

Well, this has been incredibly insightful.

We've really killed back the layers on income tax accounting.

It's clear it's far more than just calculating a simple percentage of profit.

Understanding DTLs, DTAs, NOLs, valuation allowances, it's crucial for getting a true picture of a company's financial health and future prospects.

It really is.

These aren't just arcane accounting rules.

They directly impact reported earnings, balance sheet strength, cash flow forecasts, and ultimately, investment decisions and company valuations.

Even things like tax incentives and government policy rely on how these rules work.

The details really do matter here.

They certainly do.

Thank you so much for walking us through that complexity.

And thank you all for joining us on this deep dive.

We hope you feel better equipped to look at those financial statements and understand the story behind the income tax numbers.

Maybe the next time you see a big deferred tax asset or liability, you'll pause and think about the timing differences and future expectation that represents.

Keep learning and we'll catch you on the next deep dive.