Journal Voucher — The Dollar Dictionary

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Accounting

Journal Voucher

A document that authorizes and records a journal entry in an accounting system, providing the supporting evidence and approval trail for non-routine financial transactions.

A journal voucher typically contains: the date of the entry, a unique reference number, the accounts debited and credited, the amounts, a clear description of why the adjustment is necessary, the name and signature of the preparer, and the name and signature of the approver (who must be different from the preparer — this segregation of duties is a fundamental internal control).

The volume of journal vouchers a company processes, and the size of those entries, is a key audit risk indicator. Auditors specifically scrutinize large or unusual journal entries made near period-end — these are the most common vehicle for earnings manipulation. Modern accounting software creates automatic audit trails, but manual journal entries that override system-generated entries require heightened scrutiny precisely because they're the vector most commonly exploited in financial statement fraud.

A journal voucher is the paper trail that proves an accounting entry wasn't just made up. Every adjustment to the books — especially manual entries that bypass normal transaction processing — needs a voucher explaining why the entry was made, who approved it, and what documentation supports it. Without vouchers, auditors can't distinguish legitimate corrections from fraud.

Real world: When WorldCom committed the largest accounting fraud in U.S. history — inflating earnings by $11 billion — they did it primarily through improper journal entries that capitalized expenses as assets. Had their internal controls required proper journal vouchers with supporting documentation and independent approval for large entries, the fraud would have been much harder to execute and far more likely to be caught earlier.

💡 A journal voucher is the accountability mechanism for manual accounting entries — without documented approval trails, it's impossible to distinguish legitimate corrections from fraudulent manipulation.

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