Average concussion / mild tbi settlement in Massachusetts
Typical MA range (2026)
$23K – $150K
Severe cases can reach $1.1 million or more. Massachusetts settlements trend above the national average.
Concussions are classed as mild traumatic brain injuries, but their effects — memory problems, headaches, mood changes, sensitivity to light — can persist for months or years (post-concussion syndrome). Insurers underpay these claims because symptoms don't show on standard imaging; documentation is everything.
How a concussion / mild tbi claim actually works in Massachusetts
Massachusetts is a no-fault state: $8,000 in personal injury protection pays your medical bills and lost wages first, regardless of fault.
You can only sue the at-fault driver for pain and suffering once your medical bills clear the statutory threshold, or the injury involves a fracture, substantial scarring, or loss of sight or hearing.
Once past the threshold, Massachusetts applies modified comparative negligence with a 51% bar to the liability claim.
Massachusetts rules that shape your claim
Filing deadline
3 years
You generally have 3 years from the accident date to file a lawsuit in Massachusetts.
Fault rule
Modified comparative (51% bar)
Massachusetts bars recovery once your fault exceeds 50%; at or below that, damages are reduced proportionally.
Minimum liability coverage
$20K / $40K
Many Massachusetts drivers carry only the minimum — a key reason to check your own underinsured-motorist coverage.
Uninsured motorist coverage
Required
Every Massachusetts policy carries UM, so there is usually a second source of money when the at-fault driver has no insurance or too little of it.
Claim climate
Massachusetts is a no-fault state with $8,000 in personal injury protection. You can only sue for pain and suffering once medical bills clear the statutory threshold or the injury involves a fracture, substantial scarring, or loss of sight or hearing.
Fault math, worked through
25% at fault on a $150K claim pays $113K
Suppose a concussion / mild tbi claim in Massachusetts is worth $150,000 on the facts. Found 25% responsible, you recover $112,500 — the full value less your share. Massachusetts's modified comparative rule adds a cliff: at 51% or more responsibility you recover nothing at all. That makes the fault percentage the central fight in any Massachusetts claim where liability is genuinely shared, because a few points either side of the line is the difference between a partial recovery and zero.
A typical MA concussion / mild tbi claim is worth more than the minimum policy that has to pay it
Massachusetts requires drivers to carry $20K per person. A concussion / mild tbi claim in the typical Massachusetts range tops out around $150,000. That is $130,000 of value with no policy behind it if the at-fault driver bought the legal minimum — and a severe case at $1.1 million leaves $1.1 million unreachable. This is why the first question worth asking is not what the claim is worth but what coverage exists, and why the answer often turns on your own policy rather than theirs.
| Where the money comes from | Available | What decides it |
|---|---|---|
| At-fault driver's liability policyRuns out first | $20K minimum | Massachusetts's legal floor per injured person ($20K / $40K). Many drivers carry exactly this and nothing more. |
| Your uninsured / underinsured motorist coverageRuns out first | Mandatory | Every Massachusetts policy carries it, so there is almost always a second layer here. It stacks on top of, or fills the gap under, the at-fault limits depending on your policy language. |
| Your PIP / no-fault benefits | Pays first | Massachusetts is a no-fault state: your own PIP pays medical bills regardless of who caused the crash, and it pays them now rather than at settlement. It does not pay pain and suffering. |
| Commercial, employer or umbrella policy | Case-specific | If the at-fault driver was working, driving a company vehicle, or delivering, a commercial policy with far higher limits usually sits behind them. On a concussion / mild tbi claim worth $150K or more this is the single most valuable thing to establish early. |
The clock
Massachusetts's 3-year deadline against a concussion / mild tbi timeline
A concussion / mild tbi claim commonly resolves in 9 to 18 months, comfortably inside Massachusetts's 36-month filing window. The deadline is unlikely to be what decides this claim — but shorter notice deadlines can be, particularly if a city, county or state entity was involved.
Every Massachusetts deadline that can end your claim
The headline statute of limitations is rarely the deadline people actually miss.
| Deadline | Window | Why it matters |
|---|---|---|
| Personal injury lawsuit | 3 years from the crash | Mass. Gen. Laws ch. 260, § 2A. |
| Claim against a government entity | 2 years notice | The Massachusetts Tort Claims Act requires presentment of the claim within two years — shorter procedural steps still apply well before that. |
What surprises Massachusetts claimants
Rules that are specific to Massachusetts and routinely catch people who assumed the national norm applied.
The PIP threshold is a hard gate, not a formality
Massachusetts requires medical bills to clear a specific dollar threshold — or a qualifying injury like a fracture — before a pain-and-suffering suit is even allowed. Consistent treatment matters directly to whether the claim exists.
The 51% bar applies once you're past the threshold
After clearing the PIP gate, an ordinary comparative-fault analysis governs the liability claim, with recovery barred entirely above 50% fault.
Boston-area claims trend well above the state average
Suffolk and Middlesex county verdicts have historically outpaced the rest of Massachusetts.
Concussion / Mild TBI settlement bands in Massachusetts
National severity bands adjusted for Massachusetts's cost of care and verdict climate. Find the row that matches your own treatment.
| Severity | What it looks like | Typical range |
|---|---|---|
| Brief concussion, full recovery | Symptoms resolving within two to four weeks, no imaging findings, no lost work beyond a few days. | $17K–$44K |
| Prolonged recovery | Symptoms lasting one to three months, referral to a concussion clinic, restricted work or screen time. | $39K–$99K |
| Post-concussion syndrome | Symptoms past three to six months, neuropsychological testing showing measurable deficits, vestibular therapy. | $94K–$385K |
| Permanent cognitive deficit | Documented lasting impairment affecting employment, requiring accommodation or career change. | $330K–$1.6M |
Educational ranges compiled from published settlement and verdict reporting. Not a valuation of any specific claim.
Where a MA concussion / mild tbi claim outgrows the minimum policy
Massachusetts's minimum liability coverage is $20K per person. Reading down this ladder, a concussion / mild tbi claim clears that figure at the “Brief concussion, full recovery” band — so anyone whose treatment has reached that stage is no longer negotiating over what the claim is worth so much as over where the money is going to come from. Every band on this ladder sits above that figure, so a minimum-limits policy cannot pay a MA concussion / mild tbi claim at any severity.
Brief concussion, full recovery
$18K–$45K
Claim value passes the state minimum here
Symptoms resolving within two to four weeks, no imaging findings, no lost work beyond a few days.
Prolonged recovery
$38K–$100K
Symptoms lasting one to three months, referral to a concussion clinic, restricted work or screen time.
Post-concussion syndrome
$93K–$375K
Symptoms past three to six months, neuropsychological testing showing measurable deficits, vestibular therapy.
Permanent cognitive deficit
$325K–$1.6M
Documented lasting impairment affecting employment, requiring accommodation or career change.
How treatment moves a MA concussion / mild tbi claim
Concussion claims typically take 8 to 18 months, longer than the injury itself, because value cannot be assessed until it is clear whether symptoms will resolve. Post-concussion syndrome claims routinely run two years or more.
Emergency CT scan
Rules out bleeding. A normal CT is expected in concussion and does not mean nothing happened — but the insurer will present it as if it does.
Documented symptom tracking in the first weeks
Concussion claims live or die on contemporaneous records. Symptoms reported at week two carry weight that the same symptoms recalled at month six do not.
Neurology or concussion-clinic referral
Specialist involvement moves the claim out of the soft-tissue bucket and signals that the injury was taken seriously.
Neuropsychological testing
The highest-leverage step in the entire claim. Standardized testing produces objective deficit scores an adjuster cannot wave away.
Vocational assessment
Where cognitive deficits affect work, a vocational expert translates them into a lost-earning-capacity figure — usually the largest number in the file.
Proving a concussion / mild tbi claim in Massachusetts
Emergency record noting loss of consciousness, confusion, or amnesia
Neuropsychological test battery with standardized scores
Statements from family or coworkers describing observed changes
Employer documentation of accommodations, errors, or reduced hours
Symptom diary kept from the first week forward
What concussion / mild tbi compensation in Massachusetts is made of
The $23K–$150K figure above is a total. These are the parts it is a total of, and which of them you have to document yourself.
Medical bills, at the billed amount
Every concussion / mild tbi demand starts with the total your providers billed — not what a health plan negotiated it down to, and not what you were left owing at the counter. The cost of the same course of treatment runs above the national average in Massachusetts, which is part of why the MA range sits where it does. The bills that get missed are the ones with no claim behind them: the urgent care visit you paid cash for, the brace, the mileage to twenty physical therapy appointments.
Income you already lost, and income you will
Wages you have missed are the straightforward half — a payroll record proves them. Earning capacity is the contested half: what the concussion / mild tbi costs you in the years after the file closes. A MA concussion / mild tbi claim takes 9 to 18 months to value largely because that answer does not exist until a physician will put a lasting restriction in writing. Self-employed claimants carry the heaviest burden here, because there is no employer to write the letter.
Pain and suffering — if you clear Massachusetts's threshold
Massachusetts is a no-fault state. Your own PIP coverage pays medical bills quickly and pays nothing at all for what the injury did to your life. That compensation only becomes available once the injury meets the state's threshold, which means the documentation of permanence or serious impairment is doing double duty: it proves the concussion / mild tbi and it unlocks the largest component of the claim.
What the figure does not include
Vehicle or property damage settles on a separate track and does not raise the injury number, so accepting that cheque early costs you nothing. Nor does the range above assume you claimed household help, childcare you had to pay for while you could not lift, or the prescriptions you filled without submitting. Those are recoverable and routinely go unclaimed, because nobody keeps receipts for a bad month.
Concussion / Mild TBI in Massachusetts: the questions people ask
The questions people actually search for on this topic, answered in full.
How much is a concussion / mild tbi settlement worth in Massachusetts?
Typical concussion / mild tbi claims in Massachusetts run $22,500 to $150,000, with severe cases reaching $1.1 million or more. Massachusetts settlements trend above the national average — higher medical costs and more generous venues both push values up. Your own number depends on treatment, permanence, fault, and the insurance actually available.
How long do I have to file a concussion / mild tbi claim in Massachusetts?
Massachusetts gives you 3 years from the date of the crash to file a personal injury lawsuit. Other deadlines run shorter — claim against a government entity (2 years notice). Missing the applicable deadline ends the claim regardless of how strong it is.
What happens to my concussion / mild tbi claim if I was partly at fault in Massachusetts?
Massachusetts bars recovery once your fault exceeds 50%; at or below that, damages are reduced proportionally. Suppose a concussion / mild tbi claim in Massachusetts is worth $150,000 on the facts. Found 25% responsible, you recover $112,500 — the full value less your share. Massachusetts's modified comparative rule adds a cliff: at 51% or more responsibility you recover nothing at all. That makes the fault percentage the central fight in any Massachusetts claim where liability is genuinely shared, because a few points either side of the line is the difference between a partial recovery and zero.
Can I sue for pain and suffering after a concussion / mild tbi in Massachusetts?
Massachusetts is a no-fault state, so your own personal injury protection coverage pays first regardless of who caused the crash. To claim pain and suffering from the at-fault driver you have to meet Massachusetts's injury threshold — which means the medical documentation of permanence or serious impairment matters as much to your concussion / mild tbi claim as the injury itself. Once past the threshold, Massachusetts applies modified comparative negligence with a 51% bar to the liability claim.
Is the minimum insurance in Massachusetts enough to cover a concussion / mild tbi?
Massachusetts's minimum bodily injury liability is $20K / $40K. A concussion / mild tbi claim in the typical range of $22,500 to $150,000 can exhaust that coverage outright, which is why your own underinsured motorist coverage is often what determines whether a serious concussion / mild tbi is fully paid.
What will the insurance company argue about my concussion / mild tbi claim?
Standard CT and MRI are not designed to detect the diffuse axonal injury underlying most concussions. A normal scan is the expected result. Adjusters use it anyway, and the counter is neuropsychological testing, which measures function rather than structure. In Massachusetts that argument lands inside a modified comparative (51% bar) system, so how much it costs you depends on the fault percentage the adjuster can support.
How long does a concussion / mild tbi claim take to settle in Massachusetts?
Concussion claims typically take 8 to 18 months, longer than the injury itself, because value cannot be assessed until it is clear whether symptoms will resolve. Post-concussion syndrome claims routinely run two years or more. Massachusetts's 3-year filing deadline sets the outer limit on negotiation — once it passes, the claim is over, so a case that is still being negotiated as the deadline approaches usually has to be filed to preserve it.
Do I need a Massachusetts lawyer for a concussion / mild tbi claim?
At the values a concussion / mild tbi claim reaches in Massachusetts — commonly $22,500 to $150,000 — most claimants net more with representation even after the contingency fee, because these claims involve permanence arguments, lien negotiation, and often more insurance than one policy.
What if the driver who hurt me in Massachusetts only had minimum insurance?
Massachusetts's minimum is $20K per injured person, and a concussion / mild tbi claim in the typical range reaches about $150,000 — so a minimum policy runs out before the claim does. What happens next depends on layers the at-fault driver does not control: your own underinsured motorist coverage, a commercial or employer policy if they were working, and occasionally a second at-fault party. A claim that appears capped at $20K is often not, and finding that out is work done in the first weeks, not at settlement.
How much of a concussion / mild tbi settlement do I actually keep in Massachusetts?
On a $150,000 settlement — the top of the typical Massachusetts range for this injury — a one-third contingency fee, roughly 4% in case expenses and around 15% in medical liens leave about $71,500. The fee is fixed by the agreement you sign; the lien figure is not. Negotiating providers, a health plan or a Medicare conditional payment down is the one line on that list that moves, and every dollar it moves reaches you in full.
How long does a concussion / mild tbi claim take in Massachusetts, and can it outlast the deadline?
A concussion / mild tbi claim usually takes 9 to 18 months, because it cannot be valued until treatment plateaus and a doctor will say so in writing. Massachusetts allows 36 months to file suit. That leaves margin at the long end, but the clock starts at the crash rather than at diagnosis, and shorter notice deadlines apply if a government vehicle or a public property defect was involved.
Is the average concussion / mild tbi payout in Massachusetts what I should expect?
An average describes a population, not your file. The $22,500 to $150,000 band covers MA claims that differ in the three ways that decide a payout: how much treatment the records actually document, whether liability is contested, and how much insurance stands behind the person at fault. A claim at the bottom of that band and one at the top are usually the same injury with different paperwork. The useful thing to do with an average is work out which end of it your own file currently supports, and what would move it.
What a $150K MA concussion / mild tbi settlement actually pays you
Gross settlement figures are not take-home figures. Running the standard deductions against the top of the typical Massachusetts range for a concussion / mild tbi shows the gap, and shows where the recoverable money is — which is almost never the fee.
| Gross settlement | $150,000 | Top of the typical concussion / mild tbi range in Massachusetts. A severe or surgical case runs well above this. |
|---|---|---|
| Attorney fee (33%) | − $50,000 | One third is the common pre-suit rate; it usually rises to 40% once a lawsuit is filed. Ask which trigger the agreement uses before signing it. |
| Case expenses | − $6,000 | Records, filing fees, expert reports. Normally deducted on top of the fee rather than out of it — confirm which, because on a $150K claim the difference is real money. |
| Medical liens and subrogation | − $22,500 | Massachusetts's no-fault PIP pays bills up front, and the PIP carrier is then reimbursed from the settlement along with any health plan or provider lien. |
| Reaches you | $71,500 | About 48% of the gross — before any lien reduction, which is where this number usually improves. |
Illustrative only, at a one-third pre-suit contingency, case expenses of about 4%, and medical liens of about 15% of the recovery. Every one of those varies. The lien line is the one worth attention: providers, health plans and Medicare frequently accept substantial reductions, and every dollar cut from $22,500 reaches you in full — no further negotiation with the insurer required.
More for Massachusetts claimants
Concussion / Mild TBI settlements in other states
What causes Concussion / Mild TBI claims in Massachusetts
Ranges reflect published settlement and verdict data adjusted for Massachusetts's legal climate; they are educational estimates only — not legal advice or a valuation of any specific claim. InjurySage is not a law firm. Laws summarized here can and do change; verify every deadline with a licensed Massachusetts attorney before relying on it. Page updated August 2026.