When “Stable” Earnings Are Not Stable

Earnings can look simple on paper until the pay structure is examined more closely. A person may have a steady job title, regular paychecks, or a full-time schedule, but that does not always mean the earnings pattern is stable.

In vocational and damages analysis, this distinction matters. A single annual wage figure may not capture a ramp-up period, probationary pay, seasonal swings, commission variability, overtime changes, or the difference between early-stage and mature earnings. If those issues are missed, the analysis may overstate or understate earning capacity.

The question is not just what the person earned. The question is whether those earnings represent a reliable baseline.

Why “stable” earnings can be misleading

Stable employment and stable earnings are related, but they are not the same.

A worker may remain with the same employer while compensation changes significantly over time. A salesperson may have a low base salary and fluctuating commission income. A construction worker may earn substantially more in certain months than others. A new employee may start at a training wage before moving into a higher regular rate.

In those situations, using one pay period, one W-2, or one calendar year can create a distorted picture.

The stronger analysis asks what the earnings pattern actually shows. That may require looking at time, structure, and context rather than relying on the most convenient number.

Ramp-up periods

Many jobs do not reach full earning potential immediately. A person may begin with lower productivity, fewer accounts, reduced hours, training pay, or limited access to commissions until they become established.

This is common in roles involving:

• sales and business development
• skilled trades and apprenticeships
• professional services
• route-based work
• commission or bonus structures
• self-employment or new business activity

A ramp-up period does not automatically mean the person’s lower earnings are the right measure of long-term earning capacity. But it also does not automatically justify assuming the highest possible future earnings. The analysis should consider whether the person was still building toward a more representative level.

What to examine

Useful records may include prior earnings, pay plans, employer statements, commission histories, production reports, offer letters, and performance benchmarks. The key question is whether the person’s earnings were still developing or had reached a reasonably representative pattern.

If the evidence shows a normal progression toward higher compensation, that may affect the earnings baseline. If the evidence is speculative or unsupported, the projection should be treated more cautiously.

Probationary pay and introductory rates

Some jobs begin with probationary pay, training wages, or temporary introductory rates. These early rates may last 30, 60, 90, or 180 days, depending on the employer and position.

If a damages analysis uses only that introductory rate, it may understate the person’s expected earnings. On the other hand, assuming a future increase without documentation can create its own problem.

The issue is whether the pay change was expected, documented, and tied to ordinary employment progression.

A stronger analysis may consider:

• whether the probationary period was defined in writing
• whether a wage increase was automatic or discretionary
• whether similarly situated employees received increases
• whether the employee was on track to complete the probationary period
• whether any performance or attendance issues affected the expected increase

This is a good example of why earnings analysis often requires more than tax records. The tax record may show what was paid. It may not explain what the pay was expected to become.

Commissions and variable compensation

Commission income can be one of the most difficult earnings issues to evaluate because the amount may vary for reasons unrelated to work capacity. Market conditions, territory, season, lead flow, pricing, customer base, employer policy, and economic conditions can all affect results.

A single strong commission year may not represent long-term earning capacity. A weak early year may not represent it either.

For commission-based workers, the analysis usually benefits from a broader view:

The goal is not to smooth away every fluctuation. The goal is to understand whether the fluctuations are normal, temporary, or tied to a change in earning capacity.

Seasonal income

Seasonal income can appear unstable even when it is highly predictable. A worker may earn most income during a busy season and little or no income during the off-season. That pattern can be normal for the occupation.

This may arise in construction, landscaping, tourism, education-adjacent work, agriculture, certain transportation roles, and other seasonal industries.

The risk is that the analysis may focus on the wrong time period. Looking at only the off-season may understate earnings. Looking only at the peak season may overstate them. A full-year view, or sometimes a multi-year view, is often more useful.

Practical example

A landscaping employee may earn substantial overtime in spring and summer and lower wages in winter. That does not necessarily mean the worker had inconsistent earning capacity. It may mean the earnings pattern was seasonal and should be evaluated across a complete cycle.

The same principle applies in reverse. A short period of high earnings during a peak season may not support an annualized projection unless the seasonal pattern is documented.

Overtime, bonuses, and premium pay

Stable base wages can still produce unstable total earnings if overtime, bonuses, or premium pay are significant.

For example, two workers with the same hourly rate may have very different annual earnings if one regularly works overtime and the other does not. A bonus may be expected in some positions and purely discretionary in others. Shift differentials, hazard pay, travel pay, and per diem arrangements can also affect the analysis.

The key question is whether these forms of compensation were regular enough to include in the earning capacity picture.

That does not always require treating them as guaranteed. It may require analyzing the pattern, the employer’s practices, and the likelihood that the compensation would have continued.

New jobs and short earnings histories

A short earnings history can be especially difficult to interpret. If a person had recently changed jobs, received a promotion, entered a new occupation, or started a business, the available records may not show a settled pattern.

That does not mean the analysis should ignore the new opportunity. It also does not mean the highest anticipated earnings should be accepted without scrutiny.

A careful review may consider:

• the person’s prior earnings trajectory
• the reason for the job change
• the compensation structure of the new role
• whether the position was permanent or trial-based
• whether earnings had begun to stabilize
• whether the person had the skills and experience to succeed in the role

In these cases, documentation becomes especially important. Offer letters, employment agreements, wage schedules, commission plans, and employer testimony may be more useful than a partial year of earnings alone.

Why averaging can help, and where it can mislead

Averaging is often used to address variable income, but it should not be automatic.

A multi-year average may be helpful when earnings fluctuate within a mature, recurring pattern. It may be misleading when the person was in a ramp-up period, changed careers, lost a major account, moved to a new pay plan, or experienced a one-time disruption.

The question is whether the average reflects the person’s likely earning capacity or simply compresses different realities into one number.

Averages can be useful, but only when the time period and context are appropriate.

What documentation helps clarify the picture

The best earnings analysis usually depends on more than one document. Tax returns and W-2s are helpful, but they often need context.

Useful documentation may include:

• paystubs showing year-to-date earnings
• W-2s, 1099s, and tax returns
• offer letters or employment agreements
• union wage schedules or apprenticeship progression documents
• commission plans and sales reports
• employer payroll records
• bonus policies
• seasonal work histories
• job descriptions and promotion records
• comparable earnings information where appropriate

The purpose is not to collect documents for volume. The purpose is to understand what the earnings record actually means.

Questions attorneys should ask

When earnings are described as stable, attorneys should consider whether that label is doing too much work.

Helpful questions include:

• Was the person still in a ramp-up or training period?
• Was the pay rate probationary, introductory, or temporary?
• Did commissions, overtime, or bonuses materially affect total income?
• Was the income seasonal?
• Is the available earnings history long enough to be representative?
• Did the person recently change jobs, territories, industries, or pay plans?
• Would a multi-year average clarify the issue or obscure it?
• What documentation supports the assumed baseline?

These questions can help determine whether the earnings figure being used is a reliable measure of earning capacity or just the easiest number to find.