Labor rate variance

Labor rate variance

The labor rate variance is the difference between the standard labor rate and the actual labor rate for the actual hours incurred by production. This variance is typically the responsibility of the HR or personnel manager, as they oversee labor cost management, including wage negotiations, hiring practices, and workforce planning. While external factors such as economic changes, labor market conditions, and inflation can influence wage rates, the HR or personnel manager plays a crucial role in negotiating pay rates, managing labor contracts, and ensuring that wages align with company standards and budgets. By effectively controlling these factors within their scope, they help minimize unfavorable labor rate variances.

The formula for calculating labor rate variances is:

$$\text{Labor rate variance}=\text{Standard costs of actual labor hours}-\text{Actual cost of labor}$$

It can also be expressed in terms of the formulas:

$$\begin{array}{rl}\text{Labor rate variance}& =(\text{SR}\times \text{ AH})-(\text{AR}\times \text{AH})\\ & =(\text{SR}-\text{AR})\times \text{AH}\end{array}$$

Where:

• $\text{AR}$ is the actual labor rate
• $\text{SR}$ is the standard labor rate
• $\text{AH}$ is the actual number of labor hours incurred in production

Example: Labor rate variance

A company’s standard labor rate is $20 per hour, and production used 1,000 actual hours. The actual labor rate paid was $21 per hour. What is the labor rate variance?

Labor rate variance = ($20 − $21) × 1,000 = −$1,000

Answer: $1,000 unfavorable. The actual rate exceeded the standard rate, so labor costs were higher than expected, which lowers operating income by $1,000.

A positive variance indicates a favorable outcome, meaning actual labor costs were lower than expected, while a negative variance signifies an unfavorable outcome, where actual labor rates exceeded the standard rate.

Common causes of a labor rate variance include unplanned wage increases or new union contracts, overtime or shift premiums, assigning more-skilled (higher-paid) or less-skilled (lower-paid) workers than the standard assumes, and using temporary or agency labor. Typical corrective actions include renegotiating labor contracts, improving scheduling to reduce overtime, matching worker skill levels to tasks, and updating an outdated standard rate.