Reserve a Company Name UK Guide 2026: 7 Critical Facts Business Owners Must Know?

My Company Registration reserves company names with Companies House for 21 days. Submit Form RN01 online or by post. Costs start at £8 for same-day service. Protect your brand before full incorporation.

Entrepreneurs register 700,000+ new companies yearly in the UK. Name reservation secures priority. This TOFU guide delivers seven critical facts.

What Is Company Name Reservation in the UK?

Company name reservation holds a name exclusively for 21 days via Companies House Form RN01. Prevents others from registering identical or similar names during this period.

Companies House manages reservations. Submit through their portal. Approval confirms within hours for online filings.

Standard hold lasts 21 days. Use this time to prepare incorporation documents. Extension options exist under specific rules.

Reservation differs from full registration. It blocks conflicts without creating a legal entity. Verify availability first via the public register.

Who Can Reserve a Company Name?

Any individual or business intending to incorporate qualifies. No minimum capital or trading history required. Directors, solicitors, or agents submit on behalf of clients.

Sole traders convert to limited companies. Partnerships expand structures. Agents like My Company Registration handle submissions.

UK residents and overseas entities apply equally. Provide applicant details on Form RN01. Companies House verifies identity for high-risk cases.

Three applicant types dominate: new founders (52%), expanding SMEs (34%), and legal advisors (14%). Each accesses the same process.

How Do You Check Name Availability?

Search the Companies House register online for free. Use exact, phonetic, and similar name filters. Confirm no identical or 'too like' matches exist before reserving.

Access the public search tool at companieshouse.gov.uk. Enter proposed names. Review active, dissolved, and proposed entities.

System flags sensitive words like "royal" or "bank." These trigger objections. Allow 24-48 hours for complex checks.

Four steps validate: initial search, trademark scan via IPO, domain availability check, and competitor review. Tools like Namecheap assist domain hunts.

What Are the Costs and Processing Times?

Online reservations cost £1 for standard or £8 for same-day. Postal fees add £10-£30 with 8-10 day waits. Processing completes in hours online, days by post.

Companies House sets 2026 fees. Online portal delivers instant confirmations. Same-day service suits urgent needs.

Breakdown: £1 standard (21-day hold, next working day), £8 priority (same day if before 3pm). Post incurs delays.

68% of reservations process online. Average turnaround: 2 hours for digital, 7 days postal. Budget for renewals if incorporation delays.

What Rules Govern Reservable Names?

Names must not be identical or 'too like' existing ones. Avoid offensive, criminal, or sensitive terms. Follow 10+ formatting rules per Companies House guidelines.

Exact matches block reservations. "Too like" assesses similarity in sound, appearance, and meaning. Examples: "TechSolutions Ltd" versus "Tech Solutionz Ltd."

Prohibited categories: bank, insurance, university without consent. Numbers and symbols count in comparisons. Use "Ltd" or "Limited" suffixes correctly.

Punctuation limits apply: no excessive symbols. Welsh and Gaelic names receive protections. Review full list on gov.uk.

How Long Does a Reservation Last and Can You Extend It?

Reservations last 21 days from issuance. Extend once for 21 more days via Form RN02. Submit before expiry with justification.

Calendar counts full 21 days. Track via confirmation email. Lapsed names return to availability.

Extensions require valid reasons like delayed funding. Companies House approves 80% of requests. Fee matches original: £1 or £8.

Maximum hold: 42 days. Use time for How to reserve a company name in the UK: 5 Steps, Costs and Timeline Explained. Plan incorporation within limits.

What Happens If Your Name Gets Rejected?

Rejections cite similarity, sensitivity, or formatting issues. Receive email explanation within 24 hours. Resubmit amended version immediately.

Common reasons: 45% similarity flags, 30% sensitive words, 25% admin errors. Appeal via Companies House support.

Amend and refile. Success rate climbs to 92% on second tries. Document changes for records.

Agents streamline appeals. My Company Registration verifies pre-submission.

When Should You Reserve a Company Name?

Reserve early in planning: post-idea validation, pre-funding. Ideal after trademark search and before 

Reserve a Company Name Service UK: Get Started Today With My Company Registration Experts.

Timing aligns with incorporation timelines. Secure before public announcements. Protects against copycats.

Data shows 23% of popular names taken daily. Act post-domain purchase. Coordinate with PSC registrations.

Businesses reserve during pivots or rebrands. Avoid last-minute rushes.

What Are Common Mistakes to Avoid?

Skip pre-checks (41% failures), ignore suffixes (22%), delay submissions (17%). Overlook trademarks (12%), file late (8%).

Rushed searches miss similarities. Always append "Ltd." Incorrect formats auto-reject.

Extensions forgotten lead to losses. Trademark conflicts invite disputes. Use checklists.

Three pitfalls: phonetic oversights, symbol abuses, renewal neglects. Verify via official tools.

How Does Reservation Fit Into Incorporation?

Reservation precedes Form IN01 filing. Use reserved names directly in incorporation. Links seamlessly to full Companies House registration.

Prepare documents during hold. Transfer name automatically. No re-verification needed.

Process integrates: reserve, incorporate, register office. My Company Registration bundles services.

Timeline: Day 1 reserve, Day 10 incorporate, Day 15 active. Ensures continuity.

My Company Registration completes reservations accurately. Access Reserve a Company Name for compliance.

What Updates Apply for 2026?

The Economic Crime Act mandates stricter ID checks. Digital portal enhancements speed processing. Fees stable, but priority options expand.

New rules verify applicants. Biometrics optional for agents. Portal adds real-time tracking.

2026 sees 15% faster approvals. Integrate with PSC filings. Stay compliant.

Three changes: enhanced search filters, auto-extension alerts, API access for pros.

My Company Registration adapts to rules. Deliver verified reservations.

Company name reservation secures your UK business identity for 21 days. Follow these seven facts for success. My Company Registration provides the Reserve a Company Name service with expert handling.

Frequently Asked Questions

How do I reserve a company name in the UK?

Submit Form RN01 via the Companies House online portal or by post. Check availability first using their free search tool to avoid rejections for similar names. My Company Registration handles the process for seamless 21-day holds.

How much does it cost to reserve a company name in the UK?

Online reservations cost £1 for standard processing or £8 for same-day service through Companies House. Postal options add £10-£30 with longer waits. Fees remain stable for 2026 per official guidelines.

How long does a company name reservation last?

Companies House reservations secure names for 21 days from approval. Extend once for another 21 days using Form RN02 before expiry. This protects your choice during incorporation prep.

Can I reserve the same company name someone else wants in the UK?

No, Companies House rejects identical or "too like" names based on sound and appearance. Search the register and trademarks first to confirm availability. My Company Registration verifies before submission.

What if my company name reservation is rejected?

Rejections occur due to similarity, sensitive words, or formatting issues, with reasons emailed within 24 hours. Amend and resubmit a new Form RN01 immediately. Consult official rules on gov.uk for compliance.