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What Is a Contingent Liability?

A contingent liability can be defined as a potential future obligation or responsibility that may arise depending on uncertain future events. This information is generally disclosed in the notes to an organisation's financial statements, because it does not represent a fixed amount that the entity has already incurred as of the reporting date. 

Because the obligation is not yet probable, or its amount cannot be reliably estimated, it is not recognised as a liability. If new information later makes the obligation both probable and measurable, it moves from disclosure to a recognised liability: a provision. 

Examples of Contingent Liabilities

  • Loan guarantees. If a business guarantees a loan on behalf of another party, such as a subsidiary or a director, it becomes liable for repaying the loan only if the original borrower defaults. Until then, it is a contingent liability, not a debt on the guarantor's own books.
  • Disputed tax assessments. If HMRC raises an assessment a business disagrees with, such as a VAT or corporation tax dispute under appeal, the amount isn't recognised as a liability while the outcome remains uncertain. It stays a contingent liability until the appeal is resolved or a tribunal decision is reached, at which point it either falls away or converts into an actual tax liability on the balance sheet. 
  • Pending lawsuits. If a business is being sued, the outcome is uncertain until the case is settled or decided in court. If payment is possible but not probable, or the amount cannot yet be reliably estimated, it is treated as a contingent liability rather than an actual liability.
  • Warranty claims. A business that sells products with a warranty knows some proportion of them will need repair or replacement, even without knowing which specific units. Warranty costs are usually estimable enough from past claims data to be recognised as a provision. But where there's no reliable claims history (for example, a newly launched product line), the cost stays a contingent liability instead.   

When Does a Contingent Liability Need to Be Disclosed?

A contingent liability is disclosed when the possibility of an outflow of economic benefit is possible but not probable. Disclosure is only omitted where the possibility of any outflow is remote. In the UK, this is outlined in FRS 102, Section 21, which governs the accounting treatment of provisions and contingent liabilities.

Contingent Liability vs Provision 

The key difference comes down to certainty. A provision is recognised in the financial statements because the outflow is both probable and can be reliably estimated, so it's treated as a real liability. A contingent liability is disclosed in the notes rather than recognised because one of those two conditions isn't met: the outflow is only possible, or it's probable, but the amount can't yet be pinned down. 

Contingent Liability Treatment at a Glance 

Likelihood of outflow 

Accounting treatment 

Probable and reliably measurable 

Recognise as a provision in the financial statements 

Possible, or probable but not reliably measurable 

Disclose as a contingent liability in the notes 

Remote 

No disclosure required 

Why Contingent Liabilities Matter

Contingent liabilities are crucial because they depict risks that have not yet been counted against the company's profits or the company's level of debt. When analysing a business, lenders, investors and possible buyers will take contingent liabilities into consideration even if the amounts are not yet agreed or may never be paid in reality.