Working With Restrictions but Earning Less? Illinois TPD Benefits

By Workers’ Compensation Attorney Matthew C. Jones

If you return to work with temporary restrictions after an Illinois work injury and earn less, you may qualify for temporary partial disability benefits, or TPD. The pay loss can come from a lower hourly rate, fewer hours, or lost overtime. Returning to work does not necessarily mean your workers’ compensation wage benefits should stop completely.

For injuries on or after June 28, 2011, the general calculation is two-thirds of the qualifying difference between what you could earn performing your pre-injury duties and what you currently earn in gross wages. The proper comparison requires more than checking your hourly rate or the amount deposited in your bank account.

This article focuses on the worker who is back on the job but bringing home less because of temporary restrictions. Our guide to how much Illinois workers’ comp pays covers the other major benefit categories.

What Is Temporary Partial Disability in Illinois?

TPD addresses a temporary loss of earnings while an injured employee is working during recovery. Section 8(a) of the Illinois Workers’ Compensation Act provides for TPD when a worker performs light duty, whether part time or full time, and earns less than the worker could earn performing the original job at full capacity.

For example, a warehouse employee might be medically limited to shorter shifts. A construction worker might be placed in a lower-paying modified job. A worker who normally earns overtime might be assigned a restricted schedule without those hours.

The question is whether the work injury and temporary work arrangement produce a qualifying earnings loss. A smaller paycheck alone does not establish the entire claim. The medical restrictions, available work, wage evidence, and reason for the reduction need to be considered together.

Read our Illinois light-duty guide for disputes over whether the offered duties actually fit your doctor’s restrictions.

How Are Illinois TPD Benefits Calculated?

For injuries on or after June 28, 2011, the statutory earnings comparison uses:

1. The average amount you would be able to earn fully performing the duties of your pre-injury occupation.
2. The gross amount you are earning in the modified job or other job you are working.

Subtract the second amount from the first, then multiply the qualifying difference by two-thirds:

Illustrative weekly TPD = (supported full-duty weekly earnings − current gross weekly earnings) × ⅔.

“Gross” means before payroll deductions. Use the gross earnings shown on the pay stub, rather than take-home pay after taxes, insurance, or other deductions. Older injuries require separate review: the IWCC Handbook explains that injuries before June 28, 2011 use a different net-earnings comparison, and TPD eligibility began with injuries on or after February 1, 2006.

The figures also must cover comparable periods. When earnings vary, preserve the underlying weekly hours and earnings instead of assuming that half of a two-week paycheck accurately represents each week.

Examples: a lower rate, fewer hours, and lost overtime

These examples assume the wage evidence supports the full-duty earnings, the restricted work causes a qualifying pay loss, and no applicable statutory limit or other adjustment changes the amount.

In the first example, the worker receives $800 in gross wages and approximately $266.67 in TPD, for a combined $1,066.67 before considering the different treatment of wages and benefits. TPD generally replaces two-thirds of the qualifying gap; it does not necessarily bring the worker back to 100% of the original gross earnings.

Can I Receive TPD if My Hourly Rate Stays the Same?

Yes, potentially. Weekly earnings can fall even when the hourly rate does not change.

Suppose your full-duty job provides 40 hours at $30 an hour, or $1,200 per week. While recovering, the available work within your restrictions provides only 20 hours at the same $30 rate. Your current gross earnings are $600. If the evidence establishes that qualifying reduction, the illustrative TPD is $400 per week.

The employer cannot resolve the wage-benefit question just by saying, “We kept your hourly rate the same.” The hours and total earnings also matter.

Keep proof explaining why the hours changed. A restricted-duty schedule, a doctor’s limit on shift length, and an email saying the employer has only a certain amount of suitable work can help establish the connection. An unrelated company-wide slowdown or voluntarily choosing fewer hours can raise different questions.

What if Light Duty Has a Lower Hourly Pay Rate?

A lower-paying temporary assignment can create a TPD issue even if you work a full week. Compare the supported full-duty earnings with the gross earnings from the modified job.

For example, 40 hours at $30 produces $1,200, while 40 hours at $20 produces $800. The qualifying difference would be $400, with illustrative TPD of $266.67.

A possible entitlement to TPD does not resolve every question about whether a proposed assignment is appropriate. The duties, medical restrictions, location, and employment terms still need review.

Can Lost Overtime Be Part of a TPD Claim?

It can be. A worker might return to a 40-hour restricted schedule but lose overtime that would have been available in the original job. That loss deserves review rather than being dismissed merely because the worker is still working full time.

The evidence should address whether you could have earned that overtime performing your original duties and whether the injury-related work arrangement prevented you from doing so. Useful records include pre-injury schedules, time cards, pay stubs, overtime assignments, and messages explaining why restricted employees cannot work the additional hours.

Do not assume that any occasional extra shift would necessarily have continued. The earnings comparison should be supported by the actual job and available work.

The overtime question for TPD is different from the overtime question for average weekly wage. Section 10 governs AWW, including its overtime rules. Section 8(a) governs the TPD earnings comparison. An overtime exclusion used in an AWW calculation should not automatically be imported into a TPD calculation without analyzing the separate provision.

Our article on whether overtime counts in Illinois workers’ comp AWW explains the AWW issue. When your restricted schedule eliminates overtime, ask for a separate TPD review.

Is TPD Always Based on My Original Average Weekly Wage?

No. The TPD comparison should not automatically be reduced to historical AWW minus current wages. AWW is important for benefits such as TTD and many permanent-disability calculations, but Section 8(a) asks what you would be able to earn fully performing the original duties.

The IWCC Handbook illustrates this distinction with a worker whose original job receives a raise during recovery. The full-duty earnings side of the TPD comparison reflects the increased pay for that job, rather than simply reusing the earlier wage figure.

A raise, an applicable contractual pay change, or the supported work schedule may therefore require attention. The proper amount is an evidence question, rather than whichever number is easiest to find in the insurer’s file.

Our guide to calculating average weekly wage in Illinois workers’ comp explains the Section 10 calculation. Reviewing AWW and TPD together can help identify an underpayment, but they remain separate calculations.

What if I Am Sent to a Charity or Nonprofit for Light Duty?

The worksite does not remove the need to review your earnings. An employer-arranged nonprofit assignment may provide less pay or fewer hours than the original job.

Ask who pays the wages, obtain the assignment’s schedule, and keep each pay stub. If the placement creates a qualifying pay gap during recovery, TPD may be owed.

Our article on charity and nonprofit light-duty assignments in Illinois addresses whether you have to report, medical suitability, distant placements, and how these disputes have been treated at pretrial conferences.

What Records Help Prove a TPD Underpayment?

A useful review connects the medical restrictions to the earnings loss. Gather:

• Your doctor’s work-status notes and the dates each restriction applied.
• The written light-duty offer, assignment details, and work schedules.
• Pre-injury payroll records and evidence of the original job’s current pay.
• Pay stubs and time records for each disputed restricted-duty period.
• Messages explaining reduced shifts, lower pay, or unavailable overtime.
• The insurer’s calculation and a record of TPD payments received.

Separate wages from benefit payments so you can identify what was actually paid. A benefits payment may appear separately from the paycheck, but the payment arrangement should be confirmed rather than assumed.

A simple week-by-week record of full-duty earnings, actual gross wages, claimed TPD, and TPD received can make the disputed period much easier to evaluate.

What Should I Do if the Insurer Stops Benefits When I Return?

A return to work may end TTD for the period you are working, but it does not automatically answer whether TPD is owed. Send your lawyer the new work schedule and the first restricted-duty pay stub as soon as they are available.

If you do not have a lawyer, request the insurer’s written explanation of how it evaluated the pay gap. Provide the medical restrictions and wage documents supporting your request, and keep copies.

A disputed TPD claim may require additional payroll evidence, medical clarification, a pretrial conference at the IWCC, or a hearing. A pretrial recommendation is not the same as a binding award.

Our guide to workers’ comp checks that have stopped explains other common reasons for a benefits cutoff.

How Long Can TPD Continue, and What if There Is No Suitable Work?

The IWCC Handbook describes TPD as a benefit during recovery, while the worker earns less in restricted work, until a return to the regular job or maximum medical improvement, often called MMI. Whether benefits are owed for a particular period depends on the work status and earnings evidence.

If your employer has no work within your temporary restrictions, the issue may be TTD rather than TPD. Read what happens when an employer cannot accommodate work restrictions.

If the restrictions become permanent and you cannot return to the original job, the case may involve vocational rehabilitation, maintenance, or a permanent-disability benefit instead. Our overview of Illinois workers’ compensation benefit types explains the differences.

Frequently Asked Questions

Can I receive TPD while working 40 hours a week?

Yes, potentially. Full-time work can still produce a qualifying earnings loss if the temporary assignment has a lower rate or eliminates earnings you could receive performing your original duties.

Does TPD use gross pay or take-home pay?

For injuries on or after June 28, 2011, the current-earnings side of the comparison uses gross pay before deductions. Older injuries require review under the rules applicable to their dates.

Does workers’ comp have to make up my entire pay cut?

TPD generally pays two-thirds of the qualifying earnings difference, subject to the applicable rules and limits. It does not automatically replace the entire reduction.

Do I lose my settlement because I receive TPD?

TPD addresses temporary earnings loss during recovery. A permanent-disability award or settlement concerns a different part of the case. Receiving TPD does not, by itself, eliminate the need to evaluate permanent disability.

Legal Sources

• Illinois Workers’ Compensation Act, Section 8(a), 820 ILCS 305/8(a) — temporary partial disability and the earnings comparison.
• Illinois Workers’ Compensation Act, Section 10, 820 ILCS 305/10 — average weekly wage.
• IWCC Handbook, Section 7 — TPD eligibility, gross-versus-net earnings, and the pay-raise example.
• IWCC benefit information and rate tables — consult the information applicable to the injury date.

Matthew C. Jones is an Illinois workers’ compensation attorney at McHargue & Jones. The examples above illustrate the calculation; actual entitlement and payment amounts depend on the medical and wage evidence and the law applicable to the claim.