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How to Document Wage Theft and Unpaid Overtime

If your paycheck does not match your hours, you need more than a memory — you need a verified, timestamped record of your labour. This guide tells you exactly what to document, how to calculate what you are owed, and what mistakes erase otherwise valid wage recovery claims.

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Wage theft is the most common crime against workers — and the most under-reported. Off-the-clock work, shaved hours, forced unpaid breaks, and misclassification cost workers billions every year. The workers who recover their money are almost always the ones who documented it.

This guide covers the complete documentation process for wage theft and unpaid overtime — from building a personal hours log and identifying what type of wage theft you are experiencing, through preserving the specific records labour boards and courts need, and avoiding the mistakes that routinely cause valid claims to be dismissed or underpaid. For workplace harassment documentation, see the companion guide: How to Document Harassment at Work.

Common Patterns of Wage Theft

Wage theft rarely looks like what the name implies. It is usually structured to be deniable — framed as a policy, a rounding practice, or a classification decision — rather than an overt refusal to pay. Recognising the pattern you are experiencing is the first step to documenting it correctly, because each type requires different evidence.

Building Your Personal Hours Log

A personal hours log is the foundation of any wage theft claim. When employer records are inaccurate, incomplete, or simply do not exist, a contemporaneous personal log — one kept in real time, not reconstructed — is accepted as evidence by labour boards and courts across every jurisdiction covered here. The key word is contemporaneous: a log written each day as you work it carries legal weight that a log reconstructed from memory does not.

What to record in every entry

Storage rules

"A log written the evening of each shift is direct evidence. A log reconstructed from memory three months after a dispute begins is testimony. Tribunals treat them very differently."

Calculating What You Are Owed

A documented hours log only becomes a wage recovery case when you translate it into a dollar figure with enough precision for a labour board or court to act on it. The calculation has several components that must each be correct.

Step 1 — Establish your correct hourly rate

Your base rate must be at least minimum wage for your jurisdiction, applied to every compensable hour including all those you were not paid for. If you were misclassified, the applicable rate is also determined by your jurisdiction's employment standards — not the rate in a contractor agreement that the law may disregard. If tips form part of your compensation, confirm whether your jurisdiction allows tip credits to reduce the cash wage below minimum, and if so, whether those credits were properly applied.

Step 2 — Identify your overtime threshold and rate

Overtime thresholds and rates vary by jurisdiction. In the United States, federal law requires 1.5x pay for hours over 40 per workweek; some states set lower thresholds or higher multipliers. In most Canadian provinces, the threshold is 44 hours per week, though it varies. In the United Kingdom, there is no statutory overtime premium — but the total pay for all hours worked must not fall below the National Minimum Wage. In Mexico, hours worked beyond the standard 8-hour day trigger overtime at 200% (double time) for the first 9 extra hours per week, then 300% (triple time) beyond that.

🇨🇦 Quebec: Under the Act respecting labour standards, overtime is payable at 1.5x for hours beyond 40 per week. The CNESST enforces minimum wage and overtime standards. Confirm the current minimum wage and overtime rules with the CNESST or a labour lawyer before calculating your claim.

🇲🇽 Mexico: Under the Ley Federal del Trabajo, daily overtime beyond 8 hours is compensated at 200% for the first hour and 300% beyond that within the week. Weekly rest day work triggers additional premiums. Confirm applicable rates and thresholds with counsel familiar with your specific state and sector.

Step 3 — Build a week-by-week comparison table

For each workweek in the recovery period, create a row showing: total hours actually worked (from your personal log); total hours paid (from your pay stubs); the difference; the dollar value of straight-time pay owed for any unpaid regular hours; the dollar value of overtime premium owed for any unpaid or miscalculated overtime hours; and any applicable deductions that were unlawful. The table is what you hand to the labour board or a lawyer — it converts raw logs into a concrete claim.

Step 4 — Identify the recovery period

Labour standards limitation periods determine how far back your claim can reach. In the U.S., the Fair Labor Standards Act allows a 2-year recovery period (3 years for willful violations). In most Canadian provinces, the recovery period ranges from 1 to 2 years under employment standards legislation, with longer periods possible in civil court. In Quebec, the recovery period under the Act respecting labour standards is 3 years. In Mexico, the JFCA limitation period for wage claims is generally 1 year from when wages were owed. In the UK, unlawful deductions from wages claims must be brought within 3 months of the last deduction. Calculate your total claim from the furthest date your jurisdiction permits.

What Evidence to Preserve — and Where to Find It

A personal hours log is necessary but rarely sufficient on its own. The strongest wage theft claims pair a personal log with objective, employer-generated records that the employer cannot easily dispute without contradicting their own systems. Here is what to collect and where to find it.

Reporting Internally and Escalating Externally

Before filing a claim with a government labour board, most jurisdictions require or strongly encourage an internal complaint first. Documenting that complaint — and the employer's response to it — is itself part of the wage theft record.

🇨🇦 Quebec: File a wage complaint with the CNESST (Commission des normes, de l'—quit—, de la sant— et de la s—curit— du travail). The CNESST enforces the Act respecting labour standards including minimum wage, overtime, and illegal deductions. The complaint must generally be filed within 3 years of the violation.

🇲🇽 Mexico: File a wage claim with the Junta Federal de Conciliación y Arbitraje (JFCA) or the applicable local labour board. General wage claims have a 1-year limitation period under the Ley Federal del Trabajo. File promptly — do not wait for internal resolution to run its course if the deadline is approaching.

Mistakes That Destroy Wage Theft Claims

Workers with valid, documented wage theft claims regularly lose or recover far less than they are owed because of avoidable errors. Each of the following has ended or severely damaged real claims.

Frequently Asked Questions

Can a personal log really be used as evidence in a wage theft case?

Yes. Labour boards and courts in Canada, the U.S., the UK, and Mexico all accept contemporaneous personal logs as evidence — particularly when the employer's own records are found to be inaccurate, incomplete, or unavailable. The U.S. Supreme Court held in Anderson v. Mt. Clemens Pottery Co. (1946) that when employer records are inadequate, workers may establish hours worked through their own evidence and reasonable estimates. Canadian labour boards apply a similar approach. What makes a personal log legally useful is that it was written in real time, is internally consistent, and can be corroborated by other evidence such as pay stubs or messages.

What is the most common form of wage theft?

Off-the-clock work — being required to perform tasks before the official clock-in or after the official clock-out without compensation — is the most widespread form. It is common in retail, food service, healthcare, warehouse, and hospitality environments. It is usually initiated by verbal instruction or informal culture rather than written policy, which is exactly why a contemporaneous log capturing those instructions — including who gave them and when — is the most important evidence in these cases.

My employer says I am an independent contractor. Does that mean I have no wage rights?

Not necessarily. The label "independent contractor" does not determine your legal status — your actual working conditions do. If your employer controls your schedule, your methods, and your tools; if you work exclusively or primarily for them; and if your work is integral to their regular business, a labour board or court may find that you are an employee regardless of what your contract says. Misclassification cases are often the highest-value wage theft claims because they cover every week of the entire misclassified period. Document your actual working conditions — schedule, supervision, equipment, exclusivity — as thoroughly as your hours.

How far back can I claim unpaid wages?

The recovery period depends on your jurisdiction and how you file. In the U.S., the FLSA provides a 2-year recovery period, extended to 3 years for willful violations. In most Canadian provinces, employment standards claims recover 1 to 2 years; civil court claims may reach further. In Quebec, the Act respecting labour standards provides a 3-year recovery period. In the UK, Employment Tribunal claims for unlawful deductions must be brought within 3 months of the last deduction, with tribunal recovery potentially capped at 2 years in a series of deductions. In Mexico, general wage claims before the JFCA have a 1-year limitation period. Start your log immediately — every week you delay is a week that may fall outside the recoverable period by the time you file.

What if my employer retaliates after I report wage theft?

Retaliation for reporting a wage violation is illegal in every jurisdiction covered here. If you experience any adverse employment action — reduced hours, demotion, schedule changes, discipline, or termination — after making an internal or external wage complaint, document the exact timeline between your complaint and the adverse action. That timeline is the core of a retaliation claim, which is a separate legal claim that compounds your employer's liability. The documentation practices are identical: specific dates, specific names, specific actions, and the causal connection between the complaint and the retaliation.

Do I need a lawyer to file a wage theft claim?

You do not need a lawyer to file a claim with a labour board or employment standards office — these agencies are designed to be accessible to workers without legal representation. However, a lawyer significantly improves your outcome in three situations: your claim is large enough to justify the cost; your employer has legal representation; or your claim involves misclassification, complex overtime calculations, or a retaliation component. Many employment lawyers handling wage claims work on contingency — they take a percentage of what you recover rather than an upfront fee. The free consultation offered by WORKWARS partner firms is specifically designed to help you assess whether legal representation makes sense for your specific claim.

Do Not Wait: Strict Legal Deadlines Apply

Wage records are purged, witnesses leave, and employers destroy evidence. If you miss the filing deadline, even a perfectly documented claim can be legally barred.

🇺🇸 United States2 to 3 Years

(FLSA — 3 years for willful violations)

🇨🇦 Canada1 to 3 Years

(Varies by province — QC: 3 years CNESST)

🇬🇧 United Kingdom3 Months Less 1 Day

(Employment Tribunal — unlawful deductions)

🇲🇽 Mexico1 Year

(JFCA — general wage claims)

*Deadlines vary by claim type and province. Always confirm with legal counsel immediately.

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