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CWF1 - Self Assessment and National Insurance contributions - Registration and / or low earnings

Use form CWF1 to register for Self Assessment if you can't register for business taxes online. Complete the form on screen, then print and post it to HMRC.

CWF1 - Cymraeg

Cofrestru ar gyfer Hunanasesiad a chyfraniadau Yswiriant Gwladol os ydych yn unig fasnachwr hunangyflogedig.

CWF1 (Cymraeg)

Cofrestru ar gyfer Hunanasesiad a chyfraniadau Yswiriant Gwladol os ydych yn unig fasnachwr hunangyflogedig

Tax returns for the self-employed

Overview of Self Assessment tax for the self-employed, what you pay tax on, forms you fill in, deadlines, leaving self-employment

Registering for Self Assessment

How and when to register with HM Revenue & Customs if you need to complete a Self Assessment tax return for the first time

Working for yourself (self-employed)

Coming to work in the UK: What you need to do first, how you pay tax, VAT

Introduction to Self Assessment

What Self Assessment means, who must complete a tax return and how to get one, getting a Unique Tax Reference (UTR)

Records: set up taxpayer record: notification of new business or self employment

This subject explains the process when someone starts in business.

Records: set up taxpayer record: set up individual record

This subject tells you about setting up an individual taxpayer record.

Central Agent Authorisation Team turnaround times

An update on the turnaround times for the processing of paper forms 64-8 and registrations for Self Assessment and self-employment.

SA401 - Registering a partner for Self Assessment and Class 2 NICs

Use this form to register for Self Assessment if you've joined a partnership. It will help get your tax and National Insurance right from the start

SA400 - Registering a partnership for Self Assessment

Use this form if you need to register a new partnership for Self Assessment

CA5601 - Application to pay Class 2 contributions by Direct Debit

Use form CA5601 if you're self-employed and want to arrange to pay your Class 2 National Insurance contributions by Direct Debit.

SA402 - Registering a partner for Self Assessment if they're not an individual

Use this form if you need to register a partner for Self Assessment that isn't an individual, for example if a company or trust has joined a partnership

Working in the construction (building) industry

Coming to work in the UK: How you pay tax as a 'contractor' or 'subcontractor' in the Construction Industry Scheme (CIS)

Records: set up taxpayer record: PAYE cases that potentially need to be brought into SA

This subject tells you what to do if you identify a case to be brought into SA during day-to-day work.

Using HMRC paper forms to apply for client authorisation

How to apply for client authorisation using paper forms 64-8 and FBI 2, where to send the forms and how the process works

Records: set up taxpayer record: set up individual record (Action Guide)

This Action Guide tells you what to do when you want to set up an SA record for an individual (including a partner).