We list here most if not all the forms that the home office have, these are changed so often that this list may be out of date already but will give you some indication of the complex nature of UK immigration System, Using the incorrect form can prove to be very costly.

DIFFERENT TYPES OF HOME OFFICE FORMS USED

Form WP1 - Application form and guide to applying for first work permits, multiple entry work permits and for changes of employment under the Training and Work Experience work permits scheme.

Form B (OTA) - Application form and guide for registration as a British citizen by a British overseas territories citizen, a British overseas citizen, A British protected person, a British subject (under the British Nationality Act 1981), a British national (overseas).

EEA2 -  Application for a residence card in the United Kingdom by non-European Economic Area national family members of an EEA orEEA2 Swiss national.

EEA3 - Application for permanent residence if you are an EEA or Swiss national

SB1 - Application form and guide to applying for a work permit under the Sectors Based Scheme for Bulgarian and Romanian nationals.

Form WP1 - Application form and guide to applying for first work permits, multiple entry work permits and for changes of employment under WP1 the Business and Commercial  work permits scheme.

WP1X - Application form and guide to extending an existing work permit under the  Business and Commercial work permits scheme.

Tier 1 (General) category of the points-based system

Tier 1 (Enterpreneur) category of the points-based system

Tier 1 (Investor) category of the points-based system.

Tier 1 (Post-study work) category of the points-based system.

Points-based system: migrant change of circumstances form - You should use this form to notify us of any changes to your details - these could be your personal details, your representative's details, your criminal convictions, your dependants' details or your contact details, for example.

Tier 5 (Youth Mobility Scheme) You can only apply under this scheme if you are outside the United Kingdom, form VAF9, together with

Tier 5 Vaf 9 appendix 7 - If you want to apply under tier 5 (Temporary Worker), you should see        the separate application form and policy guidance.

Dependants of points-based system migrants - for applications made inside the United Kingdom This page contains the application form and policy guidance for people who want to stay in the United Kingdom as the dependants of points-based system migrants If you are applying from outside the United Kingdom, you should not use this application form

ECAA1 - Application form and guide for extending your stay in the United Kingdom as a Turkish worker and dependants.

ECAA 2 - Application form and guide for switching, extending your stay or settling in the United Kingdom as a Turkish businessperson and dependants.

ECAA 3 - Application form and guide to extend your stay in the United Kingdom as a dependant of aTurkish national who has permission to enter or stay as a businessperson or a worker.

EEA4 - Application for permanent residence if you are a non-European Economic Area or non-Swiss national family member of an EEA or Swiss national.

Form ELR - Application form and guidance for extension and settlement applications on completion of 4 year's exceptional leave to remain ELR granted before 1 April 2003.

EM  - Application form and guide for registration as a British citizen under the British Nationality (Hong Kong) Act 1997

FLR (BID) and guide - for people applying to extend their stay in the UK in one of the employment or other categories listed in the form, and to obtain a biometric immigration document. As an academic visitor as a domestic worker in a private household on grounds of uk ancestory

FLR(BID as a visitor for private medical treatment.

FLR(BUS) and guide - for people applying to extend their stay as a retired person of independent means or a sole representative, and to obtain a biometric immigration document.

FMRS - Application for a family member residence stamp if you are a non-European Economic Area  national family member of a person required to register under the Accession State Worker Registration Scheme.

Form G - Application form and guide to applying for registration as a British citizen by a British dependent  territories citizen who is a United Kingdom national for European community purposes through a connection with Gibraltar

MN1 - Application form and guide for registering a child under 18 as a British citizen

MN2  - Application form and guide for registering a child under 18 as a British overseas territories citizen

MN3 - Application form and guide for the registration of a child under 18 as a British overseas citizen

MN4 - Application form and guide for the registration of a child under 18 as a British subject.

NS  -   Application form and guide for confirmation of British nationality status.

RS1 - Application form and guide for registering as a British citizen if you have made a declaration of renunciation.

RS2 - Application form and guide to registering as a British overseas territories citizen if you have made a declaration of renunciation.

S1 - Application form and guide to registering as a British citizen, a British dependent territories citizen or a British overseas citizen for stateless persons born before 1 January 1983.

S2 - Application form and guide for registration as a British citizen, a British dependent territories citizen, a British overseas citizen, or a British subject by or on behalf of a stateless person born on or after 1 January 1983.

SET (F)  - for applications to settle in the United Kingdom as a family member of a permanent resident

SET (O)  - for applications to settle in the United Kingdom in one of the employment or other categories listed on the form.

Form T - Application form and guide for registration as a British citizen by or on behalf of a person born on or after 1 January 1983 in the United Kingdom who has lived there up  to the age of 10.

UKM - Application form and guide for registration as a British citizen if you were born before 1983 to a British mother.

WPSI - Application form and guide for students from outside the European Economic Area (EEA), studying first or higher degree courses WPSI overseas wishing to undertake an internship with an employer in this country.