Source Documents, Explained: The Invoices, Receipts, and Bank Statements Your Books Stand On
The IRS requires proof behind every deduction — an invoice, receipt, or bank statement. Vouching tests entries against documents; tracing tests the reverse.
#internal-controls
Internal Controls
Systems and procedures that safeguard assets, ensure accurate records, and prevent fraud
Balance Sheet Reconciliation, Explained: How to Reconcile Every General Ledger Account Each Month
Every balance sheet balance is a claim — reconciliation proves it against an independent schedule. The five-step monthly routine, per account.
Channel Stuffing, Explained: How Shoving Extra Inventory Onto Distributors Inflates Revenue
Channel stuffing books revenue on shipments distributors cannot sell — watch DSO, receivables outpacing sales, and next-quarter returns.
The COSO Internal Control Framework, Explained: The Five Components and 17 Principles Behind Every Audit
COSO's 2013 framework defines internal control through five components and 17 principles — the criteria behind every SOX 404 audit and most CPA walkthroughs.
What Auditors Actually Test: Management Assertions, Walkthroughs, and Sampling
Auditors test five claims — existence, completeness, valuation, rights, disclosure — through confirmations, observation, and sampling. What each checks.
Credit Memo vs. Debit Memo: When to Shrink an Invoice, When to Grow It, and How Each Moves Accounts Receivable
A credit memo shrinks what a customer owes and a debit memo grows it — both adjust accounts receivable without rewriting the invoice.
The Management Representation Letter, Explained: What Your Auditor Asks You to Sign at Fieldwork's End
Refusing to sign your audit representation letter forces a disclaimer of opinion — learn what AU-C 580 requires you to certify.
Positive Pay, Explained: How Banks Match Every Check You Issue — and Why the Details Decide Whether It Saves You
Positive Pay matches every check against your issue file and holds mismatches for a same-day pay-or-return decision — add payee matching and cover ACH too.
Ghost Cards Explained: How One Shared Card Number Covers Travel, Ad Spend, and Subscriptions
A ghost card is a corporate card number assigned to a purpose, not a person — MCC limits and Level 3 data make it reconcilable.
Flux Analysis, Explained: How Comparing Account Balances Across Periods Catches Errors, Variance, and Fraud Before the Books Close
Flux analysis compares each account to last period and demands a reason for every material move — catching misposts, stale accruals, and fraud before the close.
Perpetual vs. Periodic Inventory: When Real-Time Tracking Beats Count-and-Calculate
Perpetual inventory updates stock and COGS with every sale; periodic backs COGS out of a physical count — pick by SKU count, volume, and margin.
ABC Inventory Analysis: How Ranking Every SKU by Annual Value Tells You What to Count Weekly, What to Reorder Automatically, and What to Stop Stocking
ABC analysis ranks every SKU by annual consumption value, so A items earn weekly counts and lean stock while the C tail coasts on bulk autopilot.