PromptFiling — UK company deadlines

uk.co.promptfilingPublished by promptfiling.co.ukOfficial publisherv1.11.03Updated Oct 24, 2026

Free Companies House deadline checks for UK companies: due dates, penalties, dormancy signals.

VerifiedStreamable HTTPWeb executableFinanceBusiness & Commerce

Overview

AI-generated overview

A remote MCP server that lets an assistant look up UK limited company statutory deadlines and Companies House late-filing penalties.

What you can do
Look up a UK limited company by company number or name and get its Companies House deadlines: annual accounts and confirmation statement due dates, days remaining, and dormancy signals from filing history. Retrieve the current late-filing penalty bands for annual accounts, for private and public companies, including the doubling rule for two consecutive late years and the risk of missing a confirmation statement.
When to use it
Useful when checking when a UK company's accounts or confirmation statement are due, estimating the penalty for late accounts, or judging whether a company looks dormant. Handy for accountants, company officers and anyone reviewing UK company compliance.
Requirements
A remote endpoint at mcp.promptfiling.co.uk over streamable HTTP; no package, environment variables or headers are declared. Network access is needed.
Before you install
The penalty tool is a static reference and performs no lookup. Deadline and penalty information is informational only and should be verified against Companies House before relying on it for filings or decisions.

Installation

In SourceWeft

  1. Open PromptFiling — UK company deadlines in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/uk.co.promptfiling%2Fdeadlines/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "promptfiling-uk-company-deadlines": {
      "type": "http",
      "url": "https://mcp.promptfiling.co.uk/"
    }
  }
}

Tools

2

check_company_deadlines

Check a UK company's filing deadlines

Look up a UK limited company by company number (preferred — e.g. 01234567 or SC123456) or by name, and get its statutory Companies House deadlines: when annual accounts and the confirmation statement are due, days remaining, the automatic late-filing penalty for accounts, and dormancy signals from the public register. Free, no account; data from the official Companies House register.

Parametersqueryrequired

uk_late_filing_penalties

UK late-filing penalty table

The current Companies House late-filing penalty bands for annual accounts — private companies and public companies (plc) — the doubling rule for two late years running, and what missing a confirmation statement risks. Static reference — no lookup performed.

Takes no parameters.

Version history

1
  1. v1.11.03LatestSep 16, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.