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Glossary term

Deferred Tax Liability

A deferred tax liability is the future tax obligation created when book treatment and tax treatment differ in timing. In M&A, buyers review deferred tax liabilities to understand whether recorded balances, valuation assumptions, and purchase accounting implications match the underlying economics of the target.

Quick take

Deferred taxes are timing issues today that can become cash-tax issues later.

Why it matters

Deferred tax balances can signal hidden timing differences, aggressive accounting assumptions, or future cash-tax consequences that matter to valuation and structuring.

Author byline

Sorai Editorial

Reviewed by Sorai’s diligence research and workflow design team.

Financial, tax, legal, and transaction process terminology for investor-facing diligence workflows.

Key points

  • Arises when book and tax recognition happen in different periods.
  • Often relates to depreciation, amortization, revenue timing, or reserves.
  • Needs reconciliation to supporting schedules and return positions.
  • Can affect purchase accounting and post-close tax planning.
  • Should be reviewed together with valuation allowances and tax attributes.

Related terms

Related resources

Frequently asked questions

What is a deferred tax liability?

It is the future tax obligation created when book income and taxable income are recognized in different periods.

Why do buyers review deferred tax liabilities?

Because those balances can affect valuation, purchase accounting, and the target's future cash-tax profile.

Is a deferred tax liability always bad?

Not necessarily. It is often a normal timing difference, but buyers need to confirm the balance is accurate and economically understood.