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newSchoolWorks.com › VoTechWorks › Business & Cross-Cutting › Bookkeeping / Office Administration › Payroll: Calculation, Compliance, and Processing › Lesson 10
BUS-BOOK55-03 · Lesson 10 · 11.5 clock hours · practice

Payroll Audit, Error Correction, and Compliance Review

Objective. Students will identify and correct common payroll errors — including misclassified workers, missed overtime, and incorrect withholding — and demonstrate understanding of record retention and audit-readiness requirements.

⚠ Pending professional review

This lesson, its worked examples and its practice questions has not yet been verified by a credentialed professional in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.

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Payroll Audit, Error Correction, and Compliance Review

Payroll errors are costly. They can trigger IRS penalties, Department of Labor (DOL) investigations, employee lawsuits, and damaged trust. A disciplined bookkeeper treats every payroll run as a document that must be auditable on demand. This lesson walks through the most common payroll errors, how to correct them, and how to keep records that survive an audit.

Why Payroll Audits Happen

Audits are triggered by employee complaints, mismatched tax filings, random IRS selection, or industry-wide compliance sweeps. An internal payroll review — done by you before any agency knocks — is called a self-audit or compliance review. Performing one regularly is a best practice that catches problems while they are still inexpensive to fix.

The Five Most Common Payroll Errors

1. Overtime miscalculation. The Fair Labor Standards Act (FLSA) requires that non-exempt employees receive at least 1.5 times their regular rate of pay for all hours worked beyond 40 in a workweek. A common error is applying overtime only to hours beyond 8 in a day, or using a different base rate than the true "regular rate," which must include non-discretionary bonuses when applicable.

2. Wrong FICA rate applied. FICA taxes fund Social Security and Medicare. Both the employee and employer each pay their share. Applying an incorrect percentage — for example, using the wrong Social Security wage base cutoff or forgetting the Additional Medicare Tax that applies to high earners — will produce incorrect withholding and employer tax entries. Always verify current rates and wage bases from IRS Publication 15 (Circular E) for the applicable year.

3. Garnishment not deducted. When a court or agency issues a wage garnishment order — such as for child support, student loans, or a tax levy — the employer is legally required to deduct it from the employee's paycheck beginning with the very next pay period after receipt. Missing a garnishment exposes the employer to liability.

4. Wrong filing status from the W-4. The employee's Form W-4 drives federal income tax withholding. If the bookkeeper keys in "Single" when the W-4 says "Married filing jointly," or misreads a dependent allowance, federal income tax will be withheld at the wrong rate. The correction requires both a payroll adjustment and — if the error spans a tax period that has already been filed — a corrected Form 941-X.

5. Missing employer FUTA entry. Federal Unemployment Tax Act (FUTA) tax is paid entirely by the employer, not the employee. It is easy to omit because it does not appear on the employee's pay stub. Forgetting to record the employer's FUTA liability means the general ledger understates tax expense and the deposit obligation.

How to Write a Correcting Journal Entry

When an error is found, do not delete the original entry. Instead, write a correcting entry that reverses the incorrect amount and records the correct amount. Label the entry with a memo that identifies the original pay date, the nature of the error, and your name as preparer. This creates a clear audit trail. For example, if overtime pay was understated by a certain dollar amount, you would debit Wages Expense for the additional amount and credit Accrued Payroll Liability (or Cash, if already paid), then document the calculation in full.

Worker Classification: Employee vs. Independent Contractor

Misclassifying a worker as an independent contractor when the IRS common-law rules indicate they are an employee is one of the most serious payroll compliance errors. The IRS uses a multi-factor test grouped into three main categories: behavioral control (does the company control how the work is done?), financial control (does the company control the business aspects, such as how the worker is paid and whether expenses are reimbursed?), and type of relationship (are there written contracts, employee benefits, and is the relationship permanent?). No single factor is automatically decisive; the full picture matters.

If a worker is an employee, the employer withholds and matches FICA, withholds federal and state income tax, pays FUTA and SUTA, and issues a Form W-2 at year end. If a worker is an independent contractor, the employer does not withhold taxes, does not pay FICA or FUTA on their behalf, and issues a Form 1099-NEC if payments meet the IRS reporting threshold in a calendar year.

Misclassification as a contractor when the person is actually an employee means back taxes, interest, and potentially substantial penalties.

Record Retention Requirements

Two main authorities set retention rules for payroll records.

IRS requirements generally call for keeping employment tax records for at least four years after the tax is due or paid, whichever is later. This includes copies of W-2s, W-4s, Forms 941, payroll registers, and records of tax deposits.

FLSA (DOL) requirements generally require employers to keep payroll records — including time sheets, rate of pay, and total wages — for at least three years, and records used to compute wages (such as time cards) for at least two years.

A practical retention checklist should include: completed W-4s, payroll registers for each pay period, time and attendance records, garnishment orders and deduction logs, proof of tax deposits, Forms 941 and 940, W-2 copies, and any correcting entries with supporting documentation.

Audit-Readiness Habits

Keep files organized by year and document type. Use consistent naming conventions in digital folders. Restrict access to payroll records to authorized personnel only — this is both a confidentiality and an internal-control requirement. Before each payroll run, reconcile employee counts, verify deduction tables are current, and confirm tax rates against the current IRS Circular E. After each run, reconcile the payroll register total to the cash disbursement.

A Note on Safety and Confidentiality

Payroll records contain sensitive personal information — Social Security numbers, bank account details, and wage data. Treat access as you would treat a safety hazard: limit exposure, lock electronic files with strong passwords, shred paper documents that are past retention periods rather than simply discarding them, and follow your employer's data-security policy. A breach of payroll data can harm employees and expose the business to legal liability.

Key terms10

FICAFederal Insurance Contributions Act taxes that fund Social Security and Medicare; both the employee and employer each pay their respective share, calculated on the employee's wages up to applicable wage bases.
FUTAFederal Unemployment Tax Act; a federal tax paid solely by the employer — not withheld from the employee — that funds the federal portion of the unemployment insurance system.
Correcting journal entryAn accounting entry written after an error is discovered that reverses the incorrect amount and records the correct amount, preserving the original entry and creating a clear audit trail.
Worker classificationThe IRS determination of whether a worker is an employee or an independent contractor, based on behavioral control, financial control, and the type of relationship; the classification drives which payroll taxes apply.
IRS common-law rulesThe multi-factor test used by the IRS to determine worker classification, grouped into behavioral control, financial control, and type of relationship categories; no single factor is automatically decisive.
Form W-4The IRS form completed by an employee to tell the employer how much federal income tax to withhold from each paycheck, based on filing status, dependents, and other adjustments.
Form 941-XThe IRS form used to correct errors on a previously filed Form 941 (Employer's Quarterly Federal Tax Return), used when a withholding or tax deposit error is discovered after the original return was submitted.
GarnishmentA legally mandated deduction from an employee's paycheck — ordered by a court or government agency — for obligations such as child support, tax levies, or debt repayment; employers are legally required to comply.
Record retentionThe legally required minimum time period that payroll and employment records must be kept; the IRS and DOL/FLSA set separate, overlapping retention periods for different document types.
Regular rate of payUnder the FLSA, the rate used as the basis for calculating overtime; it must include the employee's base hourly rate plus any non-discretionary bonuses and other required compensation, divided by total hours worked.

Worked examples4

1. An employee worked 45 hours in a workweek. Their regular hourly rate is $18.00. The payroll register shows total gross pay of $810.00 (45 × $18.00). Identify the error and calculate the correct gross pay.
  1. Step 1 – Identify the error: The register multiplied all 45 hours at $18.00, ignoring overtime premium. FLSA requires 1.5× the regular rate for hours over 40.
  2. Step 2 – Calculate straight-time pay for 40 hours: 40 × $18.00 = $720.00.
  3. Step 3 – Calculate the overtime rate: $18.00 × 1.5 = $27.00 per hour.
  4. Step 4 – Calculate overtime pay for 5 hours: 5 × $27.00 = $135.00.
  5. Step 5 – Calculate correct gross pay: $720.00 + $135.00 = $855.00.
  6. Step 6 – Calculate the correction amount: $855.00 − $810.00 = $45.00 understated.
  7. Step 7 – Write the correcting entry: Debit Wages Expense $45.00; Credit Accrued Wages Payable $45.00 (or Cash if already paid). Add a memo: 'Correction of overtime error — pay period ending [date], employee [name], additional 5 OT hours at $27.00.'
Answer: Correct gross pay is $855.00. The payroll register understated wages by $45.00. A correcting entry debiting Wages Expense and crediting Accrued Wages Payable (or Cash) for $45.00 is required.
2. A payroll register shows that an employee earned $1,200.00 in gross wages for the pay period and had $0 deducted for a court-ordered child-support garnishment of $150.00 per pay period. The garnishment order was received two pay periods ago. Describe the error and prepare the correcting payroll entry for this period.
  1. Step 1 – Identify the error: The garnishment was not deducted in the current period (and apparently in the prior period as well). Employers are required to begin deducting in the first pay period after receiving a garnishment order.
  2. Step 2 – For this period's correcting entry, record the garnishment that should have been withheld: Debit Wages Payable $150.00; Credit Garnishment Payable $150.00.
  3. Step 3 – Note that the prior missed period is a separate error requiring its own review — consult the garnishment order and applicable state law for guidance on catch-up deductions, as rules vary and there are federal limits on total garnishment amounts.
  4. Step 4 – Remit the $150.00 to the issuing agency by the deadline specified in the order.
  5. Step 5 – Document the correction with a memo referencing the court order number, the pay dates affected, and the preparer's name.
Answer: The correcting entry for the current period is: Debit Wages Payable $150.00; Credit Garnishment Payable $150.00. The bookkeeper must also review the prior missed period separately and follow the garnishment order's remittance instructions.
3. A bookkeeper entered an employee's filing status as Single when the current W-4 on file shows Married Filing Jointly. As a result, federal income tax was over-withheld by $62.00 this pay period. The payroll has already been processed and the funds disbursed. What correction is needed?
  1. Step 1 – Identify the error: The wrong filing status was keyed, causing excess federal income tax withholding of $62.00.
  2. Step 2 – Write a correcting journal entry to reverse the over-withholding: Debit Federal Income Tax Payable $62.00; Credit Wages Payable (or a payroll correction payable account) $62.00, reflecting the amount owed back to the employee.
  3. Step 3 – Reimburse the employee $62.00 on the next paycheck or via a separate payment, and document the reason on the pay stub.
  4. Step 4 – If this error occurred in a quarter that has already been closed and Form 941 filed, prepare a corrected return using Form 941-X to adjust the federal income tax withholding reported.
  5. Step 5 – Update the payroll system to reflect the correct filing status from the W-4 immediately to prevent recurrence.
  6. Step 6 – Retain the original W-4 and a copy of the correcting entry in the employee's payroll file.
Answer: Correct the current-period entry by debiting Federal Income Tax Payable $62.00 and crediting Wages Payable $62.00. Reimburse the employee $62.00. If the quarter is closed, file Form 941-X. Update the payroll system with the correct filing status.
4. A part-time employee earned $1,500.00 this quarter. The bookkeeper recorded the employee FICA Social Security withholding correctly but made no employer FUTA entry for this employee. Assuming the FUTA taxable wage base and current rate apply to this employee's wages in full, describe what entry is missing (use a general approach without inventing the exact current rate).
  1. Step 1 – Identify the error: FUTA tax is an employer-only expense. The bookkeeper recorded no FUTA liability, so both the expense and the liability are understated on the general ledger.
  2. Step 2 – Determine the FUTA taxable wages: Confirm whether the employee's year-to-date wages have exceeded the FUTA taxable wage base. If not, the full $1,500.00 is subject to FUTA.
  3. Step 3 – Calculate FUTA tax owed: Multiply $1,500.00 by the applicable FUTA rate (net of any FUTA credit for state unemployment taxes paid, per current IRS guidance). Record this as the FUTA tax expense amount.
  4. Step 4 – Write the missing entry: Debit FUTA Tax Expense [calculated amount]; Credit FUTA Tax Payable [same amount].
  5. Step 5 – Verify that FUTA deposits are made on time per IRS deposit schedule rules to avoid penalties.
  6. Step 6 – Confirm the same wages were also reported on Form 940 at year end.
Answer: The missing entry is: Debit FUTA Tax Expense [amount based on current IRS rate applied to $1,500.00]; Credit FUTA Tax Payable [same amount]. The exact dollar amount depends on the current net FUTA rate; always verify with the current IRS Circular E or Publication 15.

The math in this lesson1

Learners recompute gross pay with 1.5× overtime for 5 hours to correct a payroll register error.
7.RP.3
Brush up in the math halls at newSchoolWorks.com:
In class: Review a deliberately error-laden payroll register containing five seeded errors (an overtime miscalculation, a wrong FICA rate applied, a garnishment not deducted, a wrong filing status applied from the W-4, and a missing employer FUTA entry); identify each error, calculate the correct amount, and write a correction entry. · Analyze a worker-classification case study involving a contractor versus employee scenario; apply IRS common-law rules to classify the worker, explain the payroll tax implications of each classification in writing, and state which IRS form would be used for each. · Create a payroll record-retention checklist referencing IRS and FLSA retention requirements, organize a sample set of payroll documents into proper folders (physical or digital), and present the filing system to the instructor in a two-minute walkthrough.
Materials: Error-laden payroll register packet, worker classification case study, IRS Record Retention guidelines (from IRS website), DOL record-keeping fact sheet, blank journal forms, file folders or digital folder simulation
Check: All five errors identified and corrected with accurate correcting journal entries; worker classification memo demonstrates correct application of IRS rules; retention checklist covers all required document types. Pass = 4 of 5 errors correctly identified and fixed, classification memo rated proficient by instructor rubric.

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.

AIPB Certified Bookkeeper — Payroll
1. An employee's payroll register shows 44 hours worked at $20.00/hour, with gross pay recorded as $880.00 (44 × $20.00). What is the correct gross pay under FLSA?
AIPB Certified Bookkeeper — Payroll
2. Which IRS form is used to correct errors discovered on a previously filed Form 941?
AIPB Certified Bookkeeper — Payroll
3. Under IRS common-law rules, which of the following is a factor in the BEHAVIORAL CONTROL category for worker classification?
AIPB Certified Bookkeeper — Payroll
4. A business correctly classified a worker as an independent contractor. Which year-end tax document should the business issue to that contractor if payments exceeded the applicable IRS reporting threshold?
AIPB Certified Bookkeeper — Payroll
5. The FLSA generally requires employers to keep basic payroll records — such as time sheets and rates of pay — for a minimum of how many years?
AIPB Certified Bookkeeper — General Ledger and Financial Statements
6. A bookkeeper discovers that FUTA tax was never recorded for the second quarter. Which correcting entry is correct?
AIPB Certified Bookkeeper — Payroll
7. An employee's W-4 on file shows Married Filing Jointly, but payroll was processed using Single status, resulting in excess withholding. What is the FIRST action the bookkeeper should take?
AIPB Certified Bookkeeper — Payroll
8. Why is it important to restrict access to payroll records to authorized personnel only?
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