Auditoria de Cuentas de Activo - Guía de Estudio

Concept, Content, and Financial Reporting Standards (NIF) of Asset Items

The asset rubrics of an entity are governed by specific Financial Reporting Standards (Normas de Información Financiera or NIF) that dictate their accounting treatment and presentation. Effective resources, according to NIF C-1, represent monetary resources immediately available to the entity to fulfill its obligations and carry out operations. This typically includes accounts such as Cash (Caja) and Banks (Bancos). For example, a firm might maintain $20,000$ in Cash and $283,735$ in Bank accounts.

Accounts Receivable, governed by NIF C-3, represent the entity's enforceable rights to receive cash or other goods resulting from credit sales or similar operations. This rubric includes Customers (Clientes), Notes Receivable (Documentos por cobrar), and Sundry Debtors (Deudores diversos). A practical instance of this is an enterprise presenting a balance in the Customers account of $1,875,500$.

Prepaid Expenses, under NIF C-5, are amounts paid in advance for goods or services to be received in the future. Specific examples include Prepaid Insurance (Seguros pagados anticipadamente), Prepaid Rents (Rentas anticipadas), and Prepaid Advertising (Publicidad anticipada). An example would be a company paying $12,000$ for an annual insurance policy that covers the entire fiscal year.

Inventories, regulated by NIF C-4, consist of goods owned by the entity intended for sale or for the production of goods to be sold. This includes Raw Materials (Materia prima), Work in Progress (Producción en proceso), and Finished Goods (Productos terminados). A typical scenario involves an entity holding warehouse inventory of finished products valued at $500,000$.

Property, Plant, and Equipment (PPE), governed by NIF C-6, are tangible assets used in business operations with a useful life exceeding one year. This category includes Land (Terrenos), Buildings (Edificios), Machinery (Maquinaria), Transport Equipment (Equipo de transporte), and Furniture and Office Equipment (Mobiliario y equipo). For instance, a firm may possess furniture and office equipment recorded at $200,000$.

Deferred Charges, which are currently categorized within other assets or amortizable expenses and relate to NIF C-8 for Intangible Assets, represent expenses that will generate economic benefits across multiple future periods. Organization Expenses (Gastos de organización) are a primary example, such as an entity presenting $150,000$ in organization costs.

Audit Objectives and Risks by Asset Category

For the Effective/Cash rubric, the primary audit objective is to verify the physical existence and immediate availability of cash, ensuring it is correctly recorded. Audit procedures include cash counts (arqueos) and the review of bank reconciliations. The inherent risk is high for theft or fraud because the money is readily available. Control risks involve a lack of segregation of duties between those who receive, record, and deposit cash, while detection risks arise if the auditor fails to perform adequate counts or reconciliation reviews.

Regarding Accounts Receivable, auditors aim to prove that collection rights are real, recoverable, and correctly valued. A common procedure is sending selective confirmations for the $1,875,500$ balance so customers can acknowledge the debt. Inherent risks include the registration of fictitious sales or uncollectible accounts. Control risks involve the failure to review the aging of balances (antigüedad de saldos) or credit authorizations, and detection risks occur if the auditor ignores balance confirmations or uncollectible account analysis.

Prepaid Expenses objectives include verifying that payments represent future benefits and are correctly amortized. Auditors may recalculate the amortization of a $12,000$ insurance policy. The inherent risk is recording expenses belonging to the current period as assets. Control risks stem from a lack of control in the amortization process, while detection risks involve failing to inspect contracts or amortization calculations.

For Inventories, the goal is to confirm physical existence, ownership, and proper valuation. This is achieved through the physical observation of an inventory valued at $500,000$. Inherent risks include losses, theft, obsolescence, or overvaluation. Control risks involve deficiencies in warehouse controls or movement records (entries/exits), and detection risks include failing to observe physical counts or conduct selective tests.

Property, Plant, and Equipment (PPE) objectives are to verify existence, ownership, and valuation according to NIF. An auditor might physically inspect furniture recorded at $20,000$ and review its purchase invoice. Inherent risks include registering non-existent assets or incorrect valuations. Control risks involve inadequate asset records or lack of physical inventories, and detection risks arise if the auditor does not inspect assets physically or fails to review purchase documentation.

Deferred Charges objectives revolve around confirming that these represent future benefits and are correctly amortized. Auditors recalculate the amortization of organization expenses totaling $150,000$. The inherent risk is capitalizing expenses that do not generate future benefits. Control risks follow from poor amortization oversight, and detection risks occur if the auditor does not review amortization criteria or support documentation.

Internal Control Evaluation and Analytical Procedures

Internal control evaluation methods include Questionnaires (using specific questions for each rubric), Graphic Methods (using flowcharts for processes like Receipt → Accounting Entry → Deposit → Reconciliation), and Descriptive Methods (narratives describing how a cashier receives money and accounting records it). Key control attributes to verify include custody and registration of cash, credit authorization and tracking for accounts receivable, and the authorization of entries and exits for inventory.

Analytical procedures involve evaluations of financial information via relationships between financial and non-financial data. Per NIA 520, this includes investigating variations that are inconsistent with expectations. For Cash, auditors compare levels against industry averages and analyze year-over-year increases or decreases, using liquidity ratios ($Cash / Short-term Liabilities$). For Accounts Receivable, they compare average collection periods and turnover ratios. For Prepaid Expenses, they analyze the relationship between prepayments and current period expenses. For Inventories, they calculate inventory turnover and days in warehouse. For PPE, they evaluate the relationship between depreciation and asset value. Finally, for Deferred Charges, they review the relationship between the total charge and the recorded amortization.

Substantive Procedures and External Confirmations according to NIA 505

Substantive tests focus on assertions or claims regarding the financial data. For Cash, the assertion is real existence, tested through cash counts and bank reconciliation reviews. For Accounts Receivable, the focus is on rights being real and recoverable, tested by sending customer confirmations and inspecting credit sale documents. For Prepaid Expenses, the auditor inspects policies (like insurance) and recalculates monthly amortization. For Inventories, physical observation is compared against accounting records. For PPE, physical inspection and invoice review are coupled with the recalculation of depreciation.

External confirmations, as per NIA 505, are highly reliable when obtained from independent external sources and sent directly to the auditor. There are four main types. A Positive Confirmation occurs when the third party indicates agreement or disagreement with the balance; for example, a customer responding "Yes, the balance is correct," which serves as reliable evidence. A Negative Confirmation is when the third party responds only if they disagree; this is less reliable and used for non-material balances. If there is No Response (Sin contestación), the auditor must apply supplementary procedures like reviewing subsequent events or bank reconciliations. In cases of Disconformity (En disconformidad), where a third party reports a different balance (e.g., $70,000$ instead of $80,000$), the auditor must investigate the difference and apply additional tests.

Audit Working Papers (Cédulas de Auditoría) and Documentation

Audit working papers (cédulas de auditoría) are the material proof of the auditor's work, providing evidence of the professional quality and the depth of the tests performed. These can be physical papers or electronic records. According to NIA 230, electronic records do not change the concept of ownership, responsibility, or classification of working papers. They are categorized by use: Continuous Use (Permanent file containing the founding charter, long-term contracts, organization charts) and Temporary Use (Exercise-specific files containing bank reconciliations or balance confirmations for a specific date).

By content, they are classified as: Working Sheets (Hoja de trabajo) showing groups/rubrics for financial statements; Summary Sheets (Cédulas sumarias) showing General Ledger accounts forming a rubric; Detail Sheets (Cédulas de detalle) relating items within a General Ledger account; and Analytical or Calculation Sheets (Cédulas analíticas) used to verify the correctness of an operation. Working papers must contain the company name, fiscal year-end date, a brief title, date of preparation, name of the preparer, source of data, a concise description of work, and a conclusion.

Indexing facilitates the location of papers within the file. A common alphanumeric system uses single letters for Assets and double letters for Liabilities and Capital. For instance: A = Cash and Banks; B = Accounts Receivable; C = Inventories; U = Fixed Assets; W = Deferred Charges; AA = Notes Payable; BB = Accounts Payable; EE = Taxes Payable; HH = Long-term Debt; SS = Capital. Pyramid-style sub-indexing for Cash would look like: A (Summary), A-1 (Cash Fund Detail), A-1-1 (Cash Count), A-2 (Banks Detail), A-2-1 (Bank Reconciliation). Crossing references (cruce de cédulas) allows auditors to link data across papers, such as referencing the source of depreciation calculations in the PPE summary.

Audit Marks are standard symbols used to simplify work. Common marks include: "@" for Comparison against last year's audit; "=" or "C=" for Correct calculations; and other symbols identifying figures checked against General Ledgers, auxiliary records, physical verification, or documents with fiscal requirements. These are usually applied in red or blue ink for immediate identification.

Specific Procedures for Historical and Physical Inventory (NIA 501)

Historically, auditors did not physically verify inventories until the McKesson & Robbins fraud in 1938, which forced the accounting profession to assume direct responsibility for existence. NIA 501 establishes that if inventory is material, the auditor must obtain sufficient evidence through presence at the physical count. The objectives are to confirm Integrity (everything exists and is recorded), Accuracy (quantities are correct), Existence (physical presence), and Condition (valuation/state).

Before the count, the auditor reviews instructions, training, and the identification of third-party or obsolete merchandise. During the count, the auditor observes the application of procedures, performs test counts, and compares them with perpetual records. After the count, the auditor reconciles physical inventory with book inventory, checks cut-off dates (entradas/salidas), and prepares a report for administration. If physical attendance is not feasible, alternative procedures must be executed, or the audit opinion may be limited as per NIA 705. For inventory in the custody of third parties, the auditor must request direct confirmation or perform a physical inspection at the third party's location.

Audit of Intangible Assets and Valuation Rules

Intangible assets fall into two classes: (a) items representing the use of services or consumption of goods that are deferred because they will produce future income, such as organization expenses or debt issuance discounts; and (b) incorporeal assets like patents, licenses, and trademarks. To be capitalized, there must be reasonable certainty that they will generate sufficient future utility to absorb their cost through amortization. If an intangible only reduces losses or generates utility less than its cost, it should not be capitalized.

Valuation for intangibles follows the original historical cost principle, including all acquisition and development expenses like legal fees and experimentation costs. Amortization must be systematic and consistent over the estimated useful life. On the balance sheet, intangibles are presented as the last group of assets. If an intangible loses its economic value, the entire unamortized amount must be charged to the current period's results, with disclosure in the notes. Audit objectives for intangibles include checking property, existence, valuation (value in use), and consistency in capitalization and amortization policies.", "title": "Comprehensive University Study Guide: Audit of Assets and NIA Framework"}