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SPECIFICTION
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Deadline Engine

deadlineengine.com

From $25/mo Free plan Web
Visit deadlineengine.com
Spec score 8.0 #5 of 20 in Legal Calendaring Software

What it is

Deadline Engine is a web tool for calculating court and procedural deadlines. It displays the governing citation and the steps behind each calculation, drawing on a catalog that the homepage says contains 4,871 rules across 20 jurisdictions. Its deterministic rule logic accounts for deemed service, applicable clear-day rules, business-day adjustments, official bank holidays and court office closures; it does not use AI to calculate deadlines. The free calculator requires no account. Users can export matters as CSV or JSON, with PDF and calendar exports available per matter. Professional keeps histories of eligible server-recomputed calculations on individual matters and adds calendar feeds and downloadable ICS files. The service does not determine jurisdiction, interpret evidence, read court orders or decide whether a rule applies to a case. Deadline Engine describes its output as procedural information, not legal advice, and says dates should be checked against rules and case facts. It is developed for individual legal professionals, including solicitors, barristers, paralegals and compliance professionals.

Spec sheet

Purpose
Deadline Engine calculates court and procedural deadlines and displays the governing citation and calculation steps.Read 29 Sep 2026 · deadlineengine.com
Audience
The About page says the product is developed for individual legal professionals, including solicitors, barristers, paralegals and compliance professionals.Read 29 Sep 2026 · deadlineengine.com
Security
The Data Processing Addendum lists TLS in transit, hosted-provider encryption at rest, row-level security on user-owned tables, access controls and audit logging.Read 29 Sep 2026 · deadlineengine.com
Privacy
The privacy policy says Deadline Engine does not accept file uploads and does not require client names, court references, party names or matter details for calculations.Read 29 Sep 2026 · deadlineengine.com
Support
The help page states an initial response target of five UK working days, or two UK working days for Professional subscribers.Read 29 Sep 2026 · deadlineengine.com
Headquarters
Mildenhall, Bury St. Edmunds, England, UKRead 28 Sep 2026 · deadlineengine.com
Calculation method
The methodology says calculations use deterministic rule logic and that Deadline Engine does not use AI to calculate deadlines.Read 29 Sep 2026 · deadlineengine.com
Counting rules
The methodology says the engine handles deemed service, clear-day rules where applicable, business-day adjustments, official bank holidays and court office closures.Read 29 Sep 2026 · deadlineengine.com
Coverage
The homepage states that the catalog contains 4,871 deadline rules across 20 jurisdictions.Read 29 Sep 2026 · deadlineengine.com
Exports
The help page says users can export matters as CSV and JSON, with per-matter PDF and calendar exports.Read 29 Sep 2026 · deadlineengine.com
Legal boundary
Deadline Engine describes itself as procedural information rather than legal advice and instructs users to verify dates against rules and case facts.Read 29 Sep 2026 · deadlineengine.com
Notable limits
The methodology says the engine does not determine jurisdiction, interpret evidence, read court orders, or decide whether a rule applies to a case.Read 29 Sep 2026 · deadlineengine.com
Professional features
Professional saves eligible server-recomputed calculations to individual matters, retains their history, and provides calendar feeds and downloadable ICS files.Read 29 Sep 2026 · deadlineengine.com

Plans and prices

Free calculator Free Calculate deadlines · view citations and calculation steps · no account required Read 29 Sep 2026 · deadlineengine.com
Evidence Record $19.99, paid once one-off One eligible server-recomputed calculation as a permanent PDF with inputs, result, citation and working Read 29 Sep 2026 · deadlineengine.com
Professional monthly $29.99 a month per month Individual plan · unlimited matters and calculation records · calendar feeds · two-working-day support reply target Read 29 Sep 2026 · deadlineengine.com
Professional annual $299.99 a year per year Individual plan · unlimited matters and calculation records · calendar feeds · two-working-day support reply target Read 29 Sep 2026 · deadlineengine.com

Every Deadline Engine plan and price →

Strong points and limits

Strong points

  • Free calculator needs no account.
  • Shows citations and calculation steps.
  • Covers 4,871 rules across 20 jurisdictions.
  • Exports matters as CSV and JSON.
  • Professional includes calendar feeds and downloadable ICS files.

Limits

  • Web platform only.
  • Does not determine whether a rule applies to a case.
  • No free trial.
  • Initial support response target is five UK working days.

Who it suits

It suits legal professionals who need deadline calculations with citations and calculation steps, or matter records and calendar feeds through Professional. Users must assess whether a rule applies and verify dates against the rules and case facts themselves.

Verdict

Deadline Engine makes its calculations inspectable and offers exports and matter histories for legal workflows. It is procedural information rather than legal advice, so users remain responsible for checking dates against the rules and case facts.

Where Specifiction places it

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