HMRC Business Registration UK —
Connect Formation to the Right Taxes
HMRC onboarding for new and existing businesses, including Corporation Tax, PAYE, VAT, Self Assessment and CIS where the structure and activities require them.
Start Online with Britvex
Start a New Limited Company
Check the company name against the live Companies House register, choose the formation package and complete the incorporation details online.
Start company formation →Companies House Identity Verification
Need identity verification without a full formation? Order the Britvex ACSP identity-verification service directly.
Order identity verification →Existing Britvex Client
Sign in to manage documents, ongoing services, requests and communication through your Britvex client portal.
Open client portal →HMRC Registration
Formation and HMRC onboarding should connect. Britvex can review the business after incorporation or setup and activate only the tax services that apply.
A company formed through the Britvex online process can move directly into the HMRC and accountancy onboarding stage after Companies House incorporation.
Corporation Tax, PAYE, VAT, Self Assessment and CIS have different triggers and timelines. Not every business needs every registration.
Existing clients can manage the registration workflow and HMRC documents through the main Britvex portal.
Typical Scope
- ✓Corporation Tax activation review
- ✓PAYE registration
- ✓VAT registration review
- ✓Self Assessment setup
- ✓Partnership tax setup
- ✓CIS registration
- ✓UTR/reference tracking
- ✓Business-tax-account guidance
- ✓Trading-start review
- ✓Dormant/active status review
- ✓Post-formation tax checklist
- ✓Portal document workflow
A Controlled Business Setup Workflow
Identify the business
Confirm the legal structure, trading start, employees, turnover and relevant activities.
Check existing services
Review what Companies House or HMRC has already created to avoid duplication.
Register the required taxes
Complete the relevant Corporation Tax, PAYE, VAT, Self Assessment or CIS setup.
Connect ongoing compliance
Move the business into accounts, payroll, VAT and tax-return workflows.
The Points That Actually Matter
Connected journey
New company clients can move from the Britvex formation portal into HMRC onboarding.
Tax specific
PAYE, VAT, Corporation Tax and CIS each have separate statutory triggers.
Ongoing management
Existing clients can handle registration documents and requests through the main portal.
HMRC Registration — Common Questions
Can a new Britvex company move straight into HMRC onboarding?
Yes. After incorporation, Britvex can review the tax registrations and ongoing accounting services the new company needs.
Does every company need VAT registration?
No. VAT has its own statutory registration rules and can also be voluntary in suitable cases.
When does PAYE registration apply?
An employer normally needs PAYE registration before it starts paying employees or directors in circumstances that require PAYE.
Can existing clients use the portal for HMRC work?
Yes. The main Britvex portal is the ongoing client-service route.
Can a sole trader use this service?
Yes. Self Assessment, VAT and CIS registrations can be included where relevant, even though a sole trader is not incorporated at Companies House.
Connect Your Business to HMRC Properly
Move from formation into the Corporation Tax, PAYE, VAT or other registrations the business actually needs.