Income taxes II: losses, valuation, uncertainty and presentation

Lesson 7 assumed that Northlake was profitable every year, so every deferred tax asset would be used. Real companies make losses, take tax positions that tax authorities may challenge, and operate in several jurisdictions with different rates. This lesson covers the accounting for tax losses, the recognition and valuation of deferred tax assets, uncertain tax positions, the reconciliation of statutory and effective rates and other disclosures, the global minimum tax, and the simpler taxes payable method available to Canadian private enterprises.

Tax losses: carrybacks and carryforwards

When a company's deductions exceed its income, it has a tax loss. Canadian tax law allows a non-capital loss to be carried back three years, generating a refund of tax paid on income in those years, or carried forward twenty years to reduce future taxable income. A carryback produces a current tax asset (a receivable for the refund) because the refund is certain once claimed. A carryforward produces a deferred tax asset, because its benefit depends on future taxable profit. Net capital losses can be carried back three years and forward indefinitely, but only against taxable capital gains.

Recognizing deferred tax assets

IAS 12 recognizes a deferred tax asset for deductible temporary differences and unused losses and credits only to the extent that it is probable (more likely than not) that taxable profit will be available against which they can be used. Sources of such profit include the reversal of existing taxable temporary differences, expected future taxable profit and tax planning opportunities. When an entity has a history of recent losses, IAS 12 requires convincing other evidence before recognizing an asset for unused losses. The carrying amount of deferred tax assets is reviewed at each reporting date and reduced, or previously unrecognized assets recognized, as circumstances change. IFRS presents only the recognized net amount; it has no separate allowance account.

Both frameworks reach similar answers in most cases, but presentation differs: a US company discloses a gross deferred tax asset and a valuation allowance, while an IFRS company reports only the net amount it recognizes, with the unrecognized amount disclosed in the notes. Readers should watch for changes in these amounts. A company that reverses a large valuation allowance, or recognizes previously unrecognized losses, can report a tax benefit that makes net income look far better than operating results. Conversely, recording a new allowance signals that management has lost confidence in future profits.

Uncertain tax positions

Tax law is complex, and companies often take positions on their returns, such as the deductibility of an expense or the pricing of transactions between related companies in different countries, that a tax authority may challenge. The question for financial reporting is how much of the benefit of such a position to recognize before it is settled.

IFRIC 23, Uncertainty over Income Tax Treatments, effective since 2019, requires an entity to assume the tax authority will examine every position with full knowledge. If it is probable that the authority will accept the treatment, the entity reflects it as filed. If not, the entity reflects the uncertainty using either the most likely amount or the expected value, whichever better predicts the resolution. Uncertain treatments may be considered individually or together. The resulting liability is a current or deferred tax liability, not a provision under IAS 37.

# Uncertain tax position: a deduction worth $250,000 of tax if fully sustained
outcomes = [   # (tax benefit sustained, probability)
    (250_000, 0.30),
    (150_000, 0.30),
    (100_000, 0.20),
    (      0, 0.20),
]
expected = sum(b * p for b, p in outcomes)
print(f"Expected value of the benefit: {expected:,.0f}")
most_likely = max(outcomes, key=lambda o: o[1])
print(f"Highest single probability: {most_likely[1]:.0%} (ties possible)")

# ASC 740: largest amount with cumulative probability above 50%
cum = 0
for benefit, p in sorted(outcomes, reverse=True):
    cum += p
    print(f"  benefit {benefit:>8,}  cumulative probability {cum:.0%}")
    if cum > 0.5:
        print(f"ASC 740 measures the benefit at {benefit:,}; unrecognized tax benefit {250_000 - benefit:,}")
        break

Expected value of the benefit: 140,000
Highest single probability: 30% (ties possible)
  benefit  250,000  cumulative probability 30%
  benefit  150,000  cumulative probability 60%
ASC 740 measures the benefit at 150,000; unrecognized tax benefit 100,000

Northlake's lawyers think there is only a 30 per cent chance the full $250,000 benefit will survive an audit, so acceptance is not probable under IFRIC 23. With several possible outcomes, the expected value of $140,000 better predicts the result than any single outcome, so Northlake recognizes a benefit of $140,000 and a tax liability of $110,000 for the difference. A US GAAP reporter, applying the cumulative-probability test, would recognize $150,000, the largest amount with more than a 50 per cent cumulative likelihood. The two answers are close here but can differ substantially.

The rate reconciliation and other disclosures

Tax disclosures explain why the effective tax rate differs from the statutory rate. The rate reconciliation starts with pre-tax profit times the statutory rate and lists the effects of permanent differences, different rates in other jurisdictions, changes in tax rates, changes in valuation allowances or unrecognized assets, and adjustments for prior years. Readers use it to judge whether a low tax rate is sustainable: a rate held down by tax credits for research may persist; one held down by releasing a valuation allowance will not.

IAS 12 requires the major components of tax expense, the tax relating to items of other comprehensive income, an explanation of the relationship between tax expense and accounting profit (either a numerical reconciliation of tax amounts or of rates), and, for each type of temporary difference and unused loss, the deferred tax assets and liabilities recognized. It also requires disclosure of deductible temporary differences and unused losses for which no deferred tax asset is recognized.

The global minimum tax

The OECD's Pillar Two rules impose a 15 per cent minimum effective tax rate on large multinational groups with consolidated revenue of at least €750 million, through a top-up tax collected in the jurisdictions where profits are taxed below 15 per cent. Canada enacted the Global Minimum Tax Act in June 2024, effective for fiscal years beginning on or after 31 December 2023. In May 2023 the IASB amended IAS 12 to provide a temporary mandatory exception from recognizing and disclosing deferred taxes related to Pillar Two top-up taxes; instead, entities disclose current top-up tax expense and information about their exposure. Northlake is far too small to be affected, but its larger competitors are.

The taxes payable method under ASPE

ASPE Section 3465 lets a private enterprise choose between the future income taxes method, broadly the same as IAS 12's liability method, and the taxes payable method. Under the taxes payable method, tax expense is simply the current tax for the year, with no deferred taxes recognized; the entity discloses a reconciliation of its effective rate to the statutory rate and, if it recognized any tax on items outside profit, explains it. Many small owner-managed companies choose this method because their statements are used mainly by owners, bankers and the CRA, and computing deferred taxes adds cost without much benefit. A company that chose the taxes payable method would report Northlake's 2027 tax expense as $1,362,100 rather than $1,600,600.

Reading a tax note: a short case

Suppose a competitor's notes show pre-tax income of $40 million, tax expense of $6 million and an effective rate of 15 per cent against a statutory rate of about 25 per cent. The rate reconciliation lists three items: research and development tax credits worth 3 percentage points, lower rates in foreign jurisdictions worth 2 points, and the release of a valuation allowance (or recognition of previously unrecognized losses) worth 5 points. The deferred tax note shows that the released amount related to losses in a subsidiary that has now been profitable for two years. A careful reader would conclude that the credits and foreign rates may persist, but the 5-point benefit is a one-time event. A normalized effective rate is about 20 per cent, and normalized net income is about $32 million rather than $34 million.

The same reader would check the unrecognized deductible differences and losses disclosed under IAS 12, which signal future benefits that may be recognized when profitability is established, and the amount and timing of tax loss expiries. Canadian companies with losses also disclose the years in which non-capital losses expire, since twenty-year carryforwards from the 2000s and 2010s begin to lapse. Finally, the reconciliation of liabilities for uncertain tax treatments, and any disclosures about tax audits under way, show where the tax authority might reach a different conclusion. Taken together, these notes let an analyst separate recurring tax costs from accounting events.