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Legal & ComplianceGenerated accuracy model review: 2026-05-06

Demand Letter Deadline Calculator accuracy and testing

This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.

Formula source

  • Estimated receipt date = letter date + user-entered delivery delay days. Estimated response deadline = estimated receipt date + user-entered response period days + manual closure days when included, counted as calendar days or business days, then optionally adjusted for weekends. Reminder date = response deadline - reminder buffer days.

Test cases

Default input regression check

Generated from the checked-in default inputs and calculate function.

Inputs

  • Letter Date: 2026-04-01
  • Estimated Delivery Delay: 3 days
  • Response Period: 14 days
  • Reminder Buffer: 2 days
  • Counting Method: Calendar days
  • Weekend Handling: No automatic adjustment
  • Holiday Calendar: ca_courts_2026
  • Manual Closure Days: 0 days

Expected outputs

  • Estimated Response Deadline: 2026-04-18
  • Follow-Up Reminder Date: 2026-04-16
  • Method Summary: Estimated receipt 2026-04-04, 14 response days, calendar counting, holiday calendar: ca_courts_2026, weekend handling: none

Known limitations

  • Does not determine valid notice, receipt, mailing presumptions, cure periods, settlement obligations, or whether follow-up should occur.

Assumptions

  • The delivery delay and response period are user-entered assumptions.
  • No mail rule, service rule, receipt presumption, or contract notice clause is hardcoded.
  • Defaults are editable examples only.

Unit handling

  • Letter Date accepts calendar dates.
  • Estimated Delivery Delay accepts values in days.
  • Response Period accepts values in days.
  • Reminder Buffer accepts values in days.
  • Counting Method accepts one of the configured options.
  • Weekend Handling accepts one of the configured options.
  • Holiday Calendar accepts one of the configured options.
  • Manual Closure Days accepts values in days.

Rounding rules

  • Number displays use up to 2 decimal places in the calculator UI.
  • Input precision follows configured step values where provided.

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current demand-letter-deadline-calculator calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for Demand Letter Deadline Calculator.

Calculator transparency

Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.

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