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Limited company formation guides · 6 min read

Common mistakes in company formation applications

Avoid common UK incorporation errors by checking names, addresses, share capital, director information, identity codes and the selected filing route.

Jurisdiction: United Kingdom.

An incorporation application should reflect a settled set of decisions. Many avoidable problems come from inconsistent information, misunderstood codes or a standard package that does not match the intended company. A short review before filing is usually easier than correcting several records afterwards.

Check the exact company name

Confirm the final spelling and corporate ending. Review similarity and sensitive-word issues before treating a successful domain purchase as approval of the company name. Keep any required supporting permission with the application. [2]

If founders have been discussing several names, ensure the selected name is the one used throughout the instructions and documents.

Reconcile the people and ownership information

Check names, dates and addresses against the appropriate evidence. Confirm consent to each role and distinguish directors from shareholders or guarantors. Reconcile the total shares, classes, nominal values and ownership percentages.

An ownership schedule approved by all founders can prevent a filing agent from having to interpret informal messages about who should receive which shares.

Use the correct codes

A SIC code describes the business activity. A company authentication code supports company filings. A personal code relates to a verified individual. A tax reference belongs to the relevant HMRC record. These are not substitutes for one another.

Follow the identity-verification process for each relevant role and check the person's information matches. Do not repeatedly request new verification because an unrelated filing field is failing. [3]

Review the address and documents

The registered office and email must be appropriate for official communications. Confirm the address provider has agreed to the use. Check that the chosen company type and articles match the proposed ownership and governance arrangement. [1]

If tailored articles are required, establish whether the intended filing route supports them before paying for a standard submission.

Run a final application check

  • One approved version of the company name and structure.
  • Correct people, roles and ownership figures.
  • Relevant identity information ready through a secure route.
  • Accurate activity classification and contact details.
  • Required documents and permissions attached.

After a rejection or query

Read the stated issue carefully and correct the underlying inconsistency. Keep the response and resubmission record. If an application is merely pending, confirm its status before creating another application that could lead to an unwanted duplicate company.

Use a two-pass application review

In the first pass, review the commercial decisions: company type, intended owners, directors, share rights and articles. In the second, check transcription: names, dates, addresses, figures and supporting files. Keeping those tasks distinct helps reveal both an incorrect bargain and a simple typing mistake.

Ask a founder who did not enter the information to compare it with the approved decision sheet. If the company has only one founder, set the form aside briefly and review it against the source documents before submitting. Read carefully rather than relying on the fact that a field has passed the website's format check.

Trace a share error through the whole pack

Suppose the founders agreed 70 and 30 ordinary shares, but an old email says 60 and 40. The agent should not choose whichever message arrived last without confirming the intended arrangement. Obtain one approved schedule and align the statement of capital and related documents before filing.

Check both the number of shares and their value. A percentage may be correct while the stated capital is wrong. If different classes are involved, confirm that the rights description matches the adopted articles; matching totals alone does not establish a coherent structure.

Detect contact and identity problems before submission

Confirm that the registered email is live and monitored. Check the address provider has authorised the exact address being used. Ensure each proposed director has agreed to the role and completed the required preparation through the appropriate route.

If a personal-code field fails, distinguish a transcription error from a mismatch in the underlying personal record. Preserve the error message and follow official correction guidance. Do not change factual personal information merely to satisfy the form or substitute a company authentication code because it also looks like a filing credential.

Handle the response as part of the application

After submission, retain the reference and monitor the response. If a query arrives, identify every document affected by the underlying issue before correcting it. For example, changing the proposed legal name may require updating more than one file and checking any sensitive-word permission again.

If the application is pending, establish its status before making another submission. If it is rejected, retain the reason and the corrected version so the founders and agent can see what changed. No response should be treated as acceptance without the appropriate confirmation.

Review accepted details before reusing them

Compare the certificate and official record with the approved application. Give the bank and accountant the accepted details, not an earlier draft from the project folder. Where an error is found after incorporation, obtain advice on the proper correction procedure. Creating a second company is not a general substitute for correcting the first company's record.

No checklist guarantees acceptance, but it makes the submission more coherent and creates an evidence trail if a question needs to be resolved with the filing service.

If an application needs coordinated preparation, the limited company formation support page explains how to start an enquiry.

Frequently asked questions

Should I submit a second application if the first is delayed?

First establish the status of the original application. A delay does not necessarily mean rejection.

Can I fix an ownership mistake informally after registration?

Ownership changes may need proper approvals, documents, records and tax consideration. Do not treat them as a simple spelling correction.

Does a form accepting the information mean the application is correct?

No. Format checks may accept information that is factually inconsistent or does not match the founders agreement. Review the decisions and supporting documents before submission, then check the accepted company record rather than treating the absence of a form error as approval of every detail.

What should I keep after correcting a rejection?

Retain the rejection or query, the approved correction, the resubmitted information and the final response. That trail explains what changed and helps prevent an accountant, bank or founder from continuing to use an obsolete application draft.

Official sources

Sources checked: 8 September 2026. Check the linked guidance for subsequent changes.

  1. Companies House: Registering a company
  2. Companies House: Choosing a company name
  3. Companies House: Verifying your identity

General information only. The appropriate action depends on your circumstances and the applicable jurisdiction.

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