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The Per-Diem Method Explained

The per-diem method prices each day of your recovery at a set dollar rate, then multiplies by total days. Simple in theory; the argument is always about the rate and the endpoint.

Priya Raman
By Priya Raman, Contributing Writer, Policy & Regulation
Updated July 2, 2026
Quick answer: pick a daily dollar rate and multiply it by the days between the accident and maximum medical improvement (MMI). A $250 rate over a 120-day recovery equals $30,000 in pain and suffering.

Worked example first

Annual salary of $52,000, divided by 260 working days, gives a daily rate of $200. The physician documents MMI at 150 days. Pain and suffering comes to $200 times 150, or $30,000. Add $18,000 in medical bills and $7,500 in lost wages, and the total claim estimate is $55,500.

Step by step

Choose a daily rate. Your actual daily earnings (annual salary divided by 260 working days) are the most defensible anchor because pay stubs prove the number. Some attorneys use a self-chosen flat rate instead, calibrated to the intensity of the injury, though no verified public table sets what that rate should be. Count recovery days from the accident date to the date your treating physician documents MMI, then multiply rate by days.

How to justify your daily rate

Your actual wage is the easiest rate to defend: pay stubs are the documentation. A flat rate needs specific supporting detail: inability to sleep, dependence on others for basic tasks, missed events, documented pain scores. Adjusters are consistently skeptical of high flat rates without that kind of record behind them.

Recovery days: from when to when?

The clock runs from the accident date to the date your treating physician documents maximum medical improvement. For permanent injuries, the period can extend considerably further, which is why serious spinal cord and brain injury cases can generate very large per-diem totals. Your attorney establishes the right endpoint using your doctor's records.

Per-diem versus multiplier: which should you use?

Use the method that fits your facts and produces a defensible number. Long recoveries with modest medical bills tend to favor the per-diem. Short recoveries with large surgical costs tend to favor the multiplier. The pain and suffering calculation guide covers both and lets you compare results directly.

Estimate your claim value

Tally medical costs, missed wages, and a pain and suffering figure in one quick pass.

Sources

Anchoring the daily rate to documented wages, rather than an invented flat figure, mirrors how per-diem arguments are typically built in consumer legal-reference writing on personal injury negotiation. The full constant set this site's calculators use is documented on the 2026 Injury Claim Calculation Reference.

FAQs

What is a good per-diem rate for pain and suffering?

Most per-diem calculations anchor on actual daily earnings because it is easy to document. A self-chosen flat rate has no verified public benchmark and needs strong medical records and personal documentation to defend, with severe injuries and intensive ongoing pain generally supporting a higher rate than a minor one.

How do you count recovery days for the per-diem method?

Recovery days run from the accident date to the date your doctor documents maximum medical improvement (MMI), the point at which further significant improvement is not expected. For permanent injuries, your attorney may argue for a period that extends well beyond MMI.

Is the per-diem method better than the multiplier method?

Neither is universally better. The per-diem can be more persuasive when you can describe each day's suffering concretely and when a long recovery produced modest medical bills. The multiplier is quicker and simpler for adjusters to process. Most experienced attorneys calculate both and lead with whichever produces the higher number.

Can you use per-diem for emotional distress?

Yes. The same daily-rate logic applies to documented emotional distress, especially with therapy records or a mental-health diagnosis tied to the accident. Documentation is the key: a provider's notes and your own journal entries showing how the distress affected daily functioning.

Related reading

Priya Raman
About the author
Priya Raman
Contributing Writer, Policy & Regulation, Encore Editorial

Priya Raman spent years parsing regulatory filings before turning to consumer-facing legal explainers. She flags where an estimate stops being math and starts being a guess.