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Accounting Fundamentals5 min read16 March 2026

How to Document Accounting Policies Without Overcomplicating It

Accounting policy documentation does not need to be a 50-page manual. Here is how to write clear, useful policies that your team will actually follow.


Most small-to-mid-sized finance teams have accounting policies — but they exist in someone's head, not in writing. When that person leaves, the policies go with them. When a new team member joins, they make different judgment calls. When an auditor asks how you treat a particular item, no one can answer with confidence.

What Accounting Policies to Document

Start with the decisions that require the most judgment or that are made differently by different team members. Common candidates include:

  • Prepayment capitalisation threshold and amortization methods by category
  • Accrual estimation methodology for recurring items (utilities, professional fees)
  • Revenue recognition policy — when is a sale recognised?
  • Fixed asset capitalisation threshold and depreciation methods
  • Bad debt provision methodology
  • Intercompany transaction treatment

Keep It Short and Usable

A policy that is too long will not be read. Each policy should answer three questions: what does this policy apply to, what is the rule, and what are the exceptions? Two to three paragraphs is usually enough. If it takes longer to explain the rule than to apply it, the policy is probably too complex.

Good policy: "Payments for goods or services with a coverage period extending beyond the current month and exceeding £500 must be set up as prepayments and amortized over the coverage period using the straight-line monthly method, unless a custom schedule is required."

Version Control and Review

Policies should be dated, versioned, and reviewed at least annually. When a policy changes, the old version should be archived — not deleted — so you can see what the rule was in a prior period. This matters when auditors ask why something was treated differently two years ago.

Further Reading

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