Deadline Engine

Deadline Engine is ranked #2 of 20 in legal calendaring software on The Geeks Club. It runs on Web. There is a free plan. Paid plans start at $25/mo.

Deadline Engine plans and pricing

All plans

Free calculator Free Calculate deadlines · view citations and calculation steps · no account required deadlineengine.com · 29 Sept 2026

Evidence Record $19.99 once one-off One eligible server-recomputed calculation as a permanent PDF with inputs, result, citation and working deadlineengine.com · 29 Sept 2026

Professional monthly $29.99/mo per month Individual plan · unlimited matters and calculation records · calendar feeds · two-working-day support reply target deadlineengine.com · 29 Sept 2026

Professional annual $299.99/yr per year Individual plan · unlimited matters and calculation records · calendar feeds · two-working-day support reply target deadlineengine.com · 29 Sept 2026

Compared on legal calendaring software

Free plan: Yes
Paid from: $29.99/user/mo
Deadline calculation: automated
Court rule library: Yes
Calendar sync: one-way
Supported platforms: Web

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Deadline Engine

Purpose: Deadline Engine calculates court and procedural deadlines and displays the governing citation and calculation steps.
Coverage: The homepage states that the catalog contains 4,871 deadline rules across 20 jurisdictions.
Calculation method: The methodology says calculations use deterministic rule logic and that Deadline Engine does not use AI to calculate deadlines.
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.
Professional features: Professional saves eligible server-recomputed calculations to individual matters, retains their history, and provides calendar feeds and downloadable ICS files.
Exports: The help page says users can export matters as CSV and JSON, with per-matter PDF and calendar exports.
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.
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.
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.
Support: The help page states an initial response target of five UK working days, or two UK working days for Professional subscribers.
Audience: The About page says the product is developed for individual legal professionals, including solicitors, barristers, paralegals and compliance professionals.
Legal boundary: Deadline Engine describes itself as procedural information rather than legal advice and instructs users to verify dates against rules and case facts.
Headquarters: Mildenhall, Bury St. Edmunds, England, UK
Price from: $25/mo

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Where it ranks on The Geeks Club

Best Legal Calendaring Software in 2026#2 of 20

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Sources

deadlineengine.com· checked 29 Sept 2026
deadlineengine.com/methodology· checked 29 Sept 2026
deadlineengine.com/professional· checked 29 Sept 2026
deadlineengine.com/help· checked 29 Sept 2026
deadlineengine.com/legal/dpa· checked 29 Sept 2026
deadlineengine.com/legal/privacy· checked 29 Sept 2026
deadlineengine.com/about· checked 29 Sept 2026
deadlineengine.com/pricing· checked 29 Sept 2026