Loss of Wage-Earning Capacity (LWEC) is the OWCP benefit for federal employees who are partially disabled — you can work, but not in your old job or at your old pay. Under 5 U.S.C. § 8115, OWCP pays 66⅔% of the wage loss (75% with at least one dependent), calculated using the Shadrick formula. The number that formula produces is built almost entirely on your medical work restrictions, which is why a treating physician’s documentation can determine what you are paid for years afterward.
What loss of wage-earning capacity actually means
OWCP recognizes two kinds of disability. Total disability means you cannot work at all right now, and OWCP replaces your wages through standard wage-loss compensation. Partial disability means you can work — just not your full date-of-injury job. You may be on permanent restrictions, working reduced hours, or in a lighter position that pays less.
LWEC bridges that gap. Rather than paying you nothing because you are working, or full total-disability compensation you are no longer entitled to, OWCP pays a percentage of the difference between what your old job pays today and what you can earn now. The statutory basis is 5 U.S.C. § 8106(a) for partial disability and 5 U.S.C. § 8115 for determining wage-earning capacity. The math comes from a 1953 case, Albert C. Shadrick, and is codified at 20 C.F.R. § 10.403.
LWEC vs. wage-loss compensation vs. a schedule award
Federal workers routinely confuse these three benefits, and the distinction protects real money:
- Total-disability wage-loss compensation replaces income while you cannot work at all. It stops once you can return to some form of work.
- LWEC compensation replaces part of your income when you can work but earn less than your date-of-injury job because of the injury.
- A schedule award pays for permanent impairment of a specific body part — an arm, leg, hand, eye — regardless of whether you are working.
Wage-loss or LWEC compensation and a schedule award are paid consecutively, not concurrently, for the same injury. Many federal workers receive LWEC compensation for reduced earnings first, then pursue a schedule award after reaching maximum medical improvement.
How OWCP calculates your LWEC — the Shadrick formula
The formula compares three pay figures:
- Your pay rate for compensation purposes — what your date-of-injury job paid when your disability began.
- The current date-of-injury pay rate — what that same grade and step earns today, with raises built in.
- Your current earning capacity — either your actual earnings in the job you now hold, or the constructed earnings of a suitable job OWCP determines you could perform.
OWCP first expresses your wage-earning capacity as a percentage by dividing your earnings by the current pay rate for the date-of-injury position, then carries that percentage through to a dollar figure. Worked end to end on illustrative numbers:
| Step | Calculation | Result |
|---|---|---|
| 1. Wage-earning capacity percentage | $780 ÷ $1,300 | 60% |
| 2. Capacity expressed in dollars | 60% × $1,200 | $720/week |
| 3. Loss of wage-earning capacity | $1,200 − $720 | $480/week |
| 4a. Compensation, no dependents | $480 × 66⅔% | $320/week |
| 4b. Compensation, with a dependent | $480 × 75% | $360/week |
Those figures are illustrative. A real determination accounts for premium pay, exact effective dates, and cost-of-living adjustments applied going forward, so your actual benefit depends on what is in your file.
The four types of LWEC decisions
- Actual Earnings WEC — based on what you genuinely earn in a job you are really working. After you have held the position for at least 60 days, the claims examiner decides whether that salary fairly and reasonably represents your wage-earning capacity, and if so issues a formal decision.
- Constructed WEC — used when you are not working but OWCP believes you could perform a specific job. A vocational rehabilitation counselor identifies suitable positions in your commuting area using labor-market data, and if you do not secure work, OWCP can base compensation on the constructed earnings of one of those positions.
- Zero LWEC — you return to work earning the same or more than your date-of-injury job pays now, so there is no wage loss and compensation ends.
- Informal LWEC — you take a temporary job without a signed job offer; OWCP reduces compensation based on actual earnings without issuing a formal decision.
Actual earnings vs. constructed earnings — where the stakes are
This is the distinction that matters most, because a constructed determination does not depend on a paycheck you actually receive. It depends on a job OWCP decides you are capable of doing.
Under 5 U.S.C. § 8115(a), wages you actually earn are generally the best measure of wage-earning capacity, and absent evidence that they do not fairly and reasonably represent it, they must be accepted as that measure. A constructed capacity is what OWCP falls back on when there are no actual earnings — after your agency cannot accommodate your restrictions, you have reached medical stability, and vocational rehabilitation has identified suitable positions you did not obtain.
If your medical record says you can lift 20 pounds and sit for six hours when you genuinely cannot, OWCP may construct a higher-paying "suitable" job than you are able to perform — and reduce your compensation to match. Vague, optimistic, or missing restrictions are how partially disabled workers end up with a wage-earning capacity that is too high and a check that is too low.
Why your medical documentation decides your LWEC
An LWEC determination looks like an accounting exercise but is really a medical one. OWCP builds the entire calculation on your physician’s description of what you can and cannot do, which means your work-capacity evaluation, duty-status reports, and the specific measured restrictions in your chart are what stand between you and an inflated wage-earning capacity.
Strong documentation does three things. It keeps a constructed job honest, because the position has to fit your real limits. It supports the timing of any decision, since OWCP should not finalize a capacity determination before you are medically stable. And it preserves your ability to challenge a number that does not match your condition.
When an LWEC decision can be changed
Once OWCP issues a formal LWEC decision it is designed to be durable. Modification is warranted only where the party seeking it establishes one of three things, and the burden of proof falls on whoever asks for the change:
- A material change in the nature and extent of the injury-related condition — a worsening with no new injury that increases your disability, or an improvement that decreases it, shown by current well-rationalized medical evidence.
- You have been retrained or otherwise vocationally rehabilitated.
- The original determination was erroneous.
OWCP also monitors your status through Form CA-1032, the periodic report of earnings and employment. Reporting accurately matters: a mismatch can trigger a modification, and knowingly omitting earnings can create an overpayment you will be asked to repay.
How NuThera helps protect your wage-earning capacity
Your LWEC is only as accurate as the medical evidence behind it. At our Las Vegas and North Las Vegas clinics we treat injured federal workers and write the work restrictions and capacity evaluations OWCP relies on — specific and measured rather than a best-case guess, and documented before a wage-earning capacity decision is made rather than after.
You have the right under 20 CFR 10.300(d) to choose your own treating physician for a federal work injury. If you are returning to lighter or lower-paying work, or you have been referred to vocational rehabilitation, the documentation you build now can shape your benefit for years.
This article explains how OWCP’s wage-earning capacity rules work. It cannot tell you what your own determination should be. For representation on an LWEC dispute, consult a federal employment attorney or your union representative.
Keep exploring.
- How much does OWCP pay?
The rates behind the formula — 66⅔% vs. 75%, tax treatment, and how the pay rate itself is defined.
- Refusing a light-duty job offer
The suitable-work rules that often precede an LWEC determination, and the two-notice process OWCP must follow.
- Return to work after a federal injury
Duty-status categories, restrictions, and the documentation that supports a capacity decision.
- OWCP Forms
CA-1032, CA-7, CA-17 and every other federal form referenced in this guide.
Common questions.
What is loss of wage-earning capacity (LWEC) in an OWCP claim?
LWEC is the OWCP benefit for federal employees who are partially disabled by an accepted work injury — able to work, but earning less than their date-of-injury job because of the condition. Under 5 U.S.C. § 8115, OWCP pays 66⅔% of the wage loss, or 75% with at least one dependent, calculated using the Shadrick formula.
How is my LWEC compensation calculated?
OWCP divides your current earning capacity — actual or constructed earnings — by what your date-of-injury job pays today to get a percentage. It applies that percentage to your pay rate for compensation purposes to find your wage-earning capacity in dollars, subtracts that from the pay rate to find your loss, and pays 66⅔% or 75% of the loss, adjusted for cost-of-living increases going forward.
What is the difference between actual and constructed earnings?
Actual earnings are what you really make in a job you hold; OWCP considers a formal determination once you have worked the position at least 60 days and the salary fairly and reasonably represents your capacity. Constructed earnings are the estimated pay of a suitable job OWCP determines you could perform, used when you are not working but vocational rehabilitation identified appropriate positions. A constructed decision can reduce your check based on a job you do not actually hold, which is why accurate restrictions matter.
Can I receive an LWEC benefit and a schedule award at the same time?
Not for the same injury. Wage-loss or LWEC compensation and a schedule award are paid consecutively rather than concurrently. Many federal workers receive LWEC compensation for reduced earnings and then pursue a schedule award after reaching maximum medical improvement.
Why does my doctor’s report affect how much OWCP pays me?
Because the entire calculation is built on your work restrictions. If the medical record overstates what you can do, OWCP may construct a higher-paying suitable job than you can actually perform and pay you less accordingly. Specific, measured, accurate restrictions are what keep the wage-earning capacity figure honest.
Can an LWEC decision be changed later?
Yes, but only on one of three grounds, and the party seeking the change carries the burden of proof: a material change in the nature and extent of the injury-related condition, evidence that you have been retrained or otherwise vocationally rehabilitated, or proof that the original determination was erroneous.
Do I have to cooperate with vocational rehabilitation?
Yes. Once OWCP refers you to vocational rehabilitation, participation is required, and failing without good cause to apply for and undergo it can lead OWCP to reduce your compensation prospectively. Cooperating also gives you a record of the process, which matters if a constructed wage-earning capacity is later based on it.