by UK Business Registration Timelines: How Long to Set Up Your Company
11 Apr, 2026Quick Summary of Wait Times
- Sole Trader setup: Immediate (once you register for Self Assessment).
- Limited Company formation: 24 hours to 20 working days.
- VAT Registration: 1 to 30 days.
- Business Bank Account: 1 day to 4 weeks.
- SIC Code selection: Minutes (during registration).
Choosing Your Path: Sole Trader vs. Limited Company
Before you even look at a calendar, you have to pick your structure. This choice dictates how long you'll be waiting. If you choose to be a Sole Trader, you are essentially the business. There is no separate legal entity to create. You simply tell HMRC (His Majesty's Revenue and Customs) that you're earning money via a Self Assessment registration. This process is nearly instant. You can be "official" the moment you finish the online form.
However, most growth-focused entrepreneurs opt for a Limited Company. This creates a separate legal person, which means you have to deal with Companies House. This is where the timeline gets more complex. You aren't just signing a form; you're requesting the government to create a new legal entity. This involves checking your company name for uniqueness and verifying your directors' identities.
The Companies House Registration Phase
If you use the digital portal provided by Companies House, the turnaround is impressively fast. In most cases, your company is incorporated within 24 hours. If you're using a third-party formation agent (which many do to save time on paperwork), they can often push the process through in a few hours.
But don't assume it's always a sprint. If you submit your application via post, you're looking at a window of 8 to 20 working days. Why the gap? Paper applications require manual data entry and physical verification. Furthermore, if your chosen company name is too similar to an existing one or contains "sensitive" words (like "Royal" or "British" without permission), your application will be rejected. This sends you back to square one, adding another few days to your timeline for renaming and resubmitting.
| Method | Average Time | Reliability | Best For |
|---|---|---|---|
| Online (Direct) | 24 Hours | High | Fast starters |
| Formation Agent | 3-12 Hours | Very High | Those wanting a full package |
| Paper/Post | 8-20 Working Days | Medium | Traditionalists / Complex structures |
The VAT Registration Waiting Game
Once your company exists, you might need to register for VAT (Value Added Tax). This is mandatory if your taxable turnover exceeds £90,000 (as of current thresholds). If you register voluntarily-which many do to look more professional to B2B clients-be prepared for a variable timeline.
Usually, HMRC processes VAT registrations within a few days. However, if they decide to conduct a "compliance check," the process can stretch to 30 days or more. They might ask for proof of business activity or identity verification for the directors. If you're in a rush to invoice a large client with VAT, don't leave this until the last minute. You can't legally charge VAT until you have your VAT number, even if you've applied for it.
Opening a Business Bank Account
This is often the most unpredictable part of the timeline. You cannot legally use a personal account for a limited company. You need a dedicated business account to keep your finances separate, which is a core requirement of the Companies Act 2006.
If you go with a traditional "High Street" bank, expect a long haul. Between booking an appointment and the bank's internal KYC (Know Your Customer) checks, it can take 2 to 4 weeks. They often want to see a physical presence or have detailed conversations about your projected turnover.
Conversely, Neo-banks or digital-first challengers (like Monzo, Tide, or Revolut Business) have revolutionized this. You can often get an account open in under 10 minutes using an app. They use automated identity verification, which removes the need for physical meetings. If speed is your priority, a digital account is the way to go, though you might eventually want a traditional bank for larger credit facilities later on.
The Final Pieces: SIC Codes and Insurance
While you're waiting for the bank and VAT, you'll need to assign a SIC Code (Standard Industrial Classification). This is a five-digit code that tells the government what your business actually does. This doesn't take "time" in terms of waiting-you pick it during registration-but it takes time to research. Picking the wrong code can lead to issues with insurance premiums or government grants later.
Speaking of insurance, getting Professional Indemnity Insurance or Public Liability insurance usually takes about 15 minutes online. Most providers issue a certificate of insurance immediately upon payment. This is the one part of the registration timeline that actually moves as fast as you want it to.
Common Bottlenecks and How to Avoid Them
Most delays in the UK registration process aren't caused by government slowness, but by human error. A typo in a director's address or a mismatched name between a passport and an application form can trigger a manual review at Companies House, adding days to the process. To avoid this, double-check your Memorandum of Association and Articles of Association before hitting submit.
Another common trap is the "Registered Office Address." You cannot use your home address if you want to keep it private, as this becomes public record. Setting up a virtual office address takes about 24-48 hours, but if you wait until the moment of registration to figure this out, you'll stall your entire launch. Get your address solution sorted a few days before you start the incorporation process.
Can I start trading while waiting for my Limited Company registration?
Technically, no. You cannot sign contracts or open a business bank account in the name of a company that does not yet legally exist. If you need to operate immediately, you can start as a sole trader and later "convert" or transfer the business to a limited company, but this adds accounting complexity. It is better to wait the 24 hours for the online registration to complete.
What happens if Companies House rejects my company name?
You will receive a notification explaining why. You'll then need to choose a new name and resubmit your application. This adds at least one full business day to your timeline. To avoid this, use the Companies House name availability checker before applying.
How long does it take to get a VAT number after applying?
Most businesses get their VAT number within 5 to 10 working days. However, if HMRC requires more evidence of your business activity or identity, it can take up to 30 days. Always plan for the longer window if you have a hard deadline for a client project.
Do I need to register for Corporation Tax at the same time?
Registration for Corporation Tax is usually triggered automatically after you incorporate at Companies House. HMRC will typically send you a letter (via post) within 3 months of registration telling you that your company is registered for Corporation Tax and explaining how to pay it. You don't usually need to do a separate application immediately.
Is a formation agent faster than doing it myself?
Often, yes. While the government portal is fast, formation agents use bulk-filing software and can handle the setup of your registered office and shares simultaneously, reducing the chance of errors that cause delays. They can often wrap up the entire legal setup in a few hours.
Next Steps for Different Founders
If you're a solopreneur on a budget, start with the Sole Trader route today-it's instant. Once you hit the VAT threshold or need more liability protection, move to a Limited Company.
If you're launching a formal startup with partners, begin by agreeing on your share structure and picking a virtual office. Do this 48 hours before applying to Companies House. Use a digital bank to ensure you can take payments within the first week of existence.
If you're an international entrepreneur entering the UK market, allow at least 4-6 weeks. Verifying foreign passports and addresses takes significantly longer for both Companies House and banks, and you'll likely face more scrutiny during the KYC process.