How to calculate Wrongful Death Damages in Missouri

Quick takeaways

• Missouri wrongful death damages are calculated using the cause of action in Mo. Rev. Stat. § 537.080, which allows a civil claim when a death results from an act that would have entitled the injured person to recover had death not ensued.
• In DocketMath (tool name: wrongful-death-damages, jurisdiction: US-MO), you’ll typically model damages as a sum of components, commonly:

  • Economic losses (e.g., lost earnings/support the decedent would have provided), and
  • Non-economic losses, where your DocketMath setup allows you to enter them as modeled amounts.
• The brief you provided notes no claim-type-specific sub-rule was found, so the tool should use the general/default period for the projection window you select (rather than switching to a special sub-window for different wrongful-death “types” of inputs).

Inputs you need

Before you open DocketMath’s wrongful-death-damages calculator for US-MO, gather the inputs that drive the output. Use whatever documentation you have (pay stubs, tax returns, wage statements, medical records, and funeral invoices), then translate those into the calculator fields.

Core wrongful-death inputs (recommended)

• Decedent facts

  • Date of death
  • Age at death
  • Work status (employed, self-employed, unemployed/looking, or unable to work)

• Earnings and financial support

  • Average gross earnings (annual or monthly, depending on how the calculator is set up)
  • Earnings growth assumption (if you plan to model future earnings)
  • Expected work-life horizon you want to model (used to estimate future lost earnings/support)
  • Benefit structure considerations (if your worksheet includes them), such as overtime patterns or employer-provided compensation

• Dependents / survivors (for modeling allocation)

  • Who the damages are meant to compensate (e.g., spouse, children, other dependents)
  • Whether you want to split the damages among survivors and, if so, any dependency/weighting inputs the tool uses

• Medical and funeral items

  • Funeral expenses (include only if your DocketMath model treats them as part of the wrongful-death damages total)
  • Pre-death medical bills (include only if your setup includes them as part of the damages components you’re entering)

• Non-economic inputs (if your DocketMath setup includes them)

  • Non-economic line items you want to represent as modeled amounts (for example, categories like loss of companionship/society/grief-type impacts), entered directly as amounts rather than derived from earnings math

Time-period input (default period)

• Time window / period used for projections

  • Your brief note says: no claim-type-specific sub-rule was found, so DocketMath should use the general/default period for the damages horizon you select in the calculator.
  • Practically: you’re selecting one consistent projection window for the earnings/support portion you model, rather than using special timing rules for different “types” of wrongful-death components.

Checklist to prepare:

• I have decedent earnings (or a defensible earnings estimate) for a baseline period
• I have a reasonable future-loss horizon I want to model
• I know the date of death (to support correct default period selection logic in the tool)
• I have funeral/pre-death medical amounts, if I plan to include them in the damages components

How the calculation works

DocketMath’s wrongful-death damages workflow (US-MO) is best understood as a component-based model mapped to Missouri’s wrongful-death statute.

Step 1: Anchor the claim to Mo. Rev. Stat. § 537.080

Missouri’s statute provides the basic cause of action:

• Mo. Rev. Stat. § 537.080 (summary of operative rule):
  When the death of a person results from an act, conduct, occurrence, transaction, or circumstance that would have entitled the injured person to recover damages if death had not ensued, the responsible person or party may be liable in a civil action for damages.

This matters for your modeling because it supports the idea that the wrongful-death damages you compute correspond to what the injured person could have recovered had they survived—translated into a wrongful-death claim structure.

Source: https://revisor.mo.gov/main/OneSection.aspx?section=537.080

Step 2: Choose the damages horizon (default period)

DocketMath converts earnings/support into a total damages figure using the modeling horizon you select.

Because no claim-type-specific sub-rule was found in your brief, the tool should use the general/default period logic for the projection window you choose. In practice, that means:

• You should not expect the calculator to apply different time windows based on the “type” of wrongful-death input (e.g., a different window for wages versus household services), because no such additional sub-rule was identified.
• The same selected time-window logic is applied consistently across the components you project.

Step 3: Model economic losses (future and/or present)

In DocketMath’s wrongful-death-damages calculator, economic damages commonly come from:

• Lost earnings / lost support

  • A baseline earnings number (monthly/annual)
  • Multiplied across the number of months/years in your chosen horizon
  • Adjusted for assumptions you provide (such as earnings growth), if the tool supports those fields

Conceptual structure (what the math is doing, at a high level):

• Economic total ≈ (baseline earnings) × (projection period length)
• Then add other included economic items as separate line-items if your configuration treats them as part of the wrongful-death damages total (for example, funeral expenses and/or pre-death medical bills if you selected those components in the tool)

Step 4: Add non-economic components (entered as modeled amounts)

Where your DocketMath setup includes non-economic damages, they are typically handled as entered values rather than computed automatically from earnings.

So:

• You enter the non-economic amounts you want represented in your model,
• DocketMath then sums economic and non-economic totals into a wrongful-death damages subtotal,
• If the tool supports it, you may allocate totals across survivors based on survivor allocation inputs you provide.

Step 5: Output and reconciliation

The final output is the sum of the components you entered under the Missouri wrongful-death framework.

After you get results, do a quick reconciliation:

• If totals look high:

  • reduce the horizon length and re-run (check for unit mismatches like years vs. months)
  • confirm you selected the correct baseline earnings source (alternate years can shift results)
• If totals look low:

  • confirm you included all line-items you intended (funeral/pre-death medical only if your configuration supports them)
  • confirm you included earnings/support components rather than leaving them at defaults

Common pitfalls

Even careful users can introduce errors in Missouri wrongful-death damage modeling. The goal is to keep your inputs consistent with how DocketMath expects them.

1) Using the wrong projection period

If you accidentally set a horizon longer than intended, earnings-based components can grow quickly.

• Confirm your horizon is using the general/default period logic (no special sub-rule was found)
• Re-check whether the tool treats your horizon input as months or years

2) Mixing net and gross earnings assumptions

Some users have “take-home pay” numbers (net) while tools often expect gross earnings.

• Ensure your earnings inputs match how DocketMath defines the baseline field (gross vs. net)

3) Double-counting or omitting medical/funeral items

Depending on your setup, it’s easy to count the same expense twice or exclude it unintentionally.

• Add each expense exactly once in the component list you’re using

4) Treating non-economic damages as automatically derived from economics

Non-economic values are usually not derived from wage tables. If you enter non-economic amounts based on an earnings multiplier, you may skew the results.

• Use non-economic inputs as modeled amounts, not as a wage-based multiplier

5) Forgetting survivor allocation checks (if you split damages)

If DocketMath allocates totals across dependents, allocation math should reconcile back to your total.

• Confirm survivor counts/weights are entered correctly
• Confirm allocated amounts sum back to the overall wrongful death damages subtotal

Sources and references

• Mo. Rev. Stat. § 537.080 — Wrongful death action; statutory basis for damages when death results from an act that would have entitled the person to recover had death not ensued.
  https://revisor.mo.gov/main/OneSection.aspx?section=537.080

Next steps

1. Open DocketMath’s wrongful-death-damages tool for US-MO: /tools/wrongful-death-damages
2. Enter:

   • decedent earnings baseline (and earnings growth assumptions, if applicable)
   • your chosen projection horizon using the general/default period
   • any funeral and/or pre-death medical amounts only if your selected component list includes them
3. Add non-economic modeled amounts only if the tool configuration includes them, and only in categories you intend to represent in your damages theory.
4. Review output and run a sensitivity check:

   • change the horizon by a small increment (for example, ±12 months) and observe how sensitive the total is
   • swap between plausible earnings baselines if you have multiple defensible income sources

Related reading

• [How to calculate Wrongful Death Damages in Texas](/blog/wrongful-death