A directory of the HMRC and Companies House forms our clients use most, together with our own client forms. Government forms link to the official GOV.UK page, so you always get the current version.
Silver Throne client forms
| Form | What it is for | Who it is for | Type | |
|---|---|---|---|---|
| SA Questionnaire 2025/26 | Information we need for your Self Assessment return | Our clients | Silver Throne | Open → |
| Tax Planning Checklist | Planning opportunities to review before the tax year ends | Our clients | Silver Throne | Open → |
| Becoming a client | Our onboarding steps and what you will need | New clients | Silver Throne | Open → |
| Book an appointment | Arrange a meeting with our team | Everyone | Silver Throne | Open → |
Agents and Self Assessment
| Form | What it is for | Who it is for | Type | |
|---|---|---|---|---|
| 64-8 | Authorise an agent to deal with HMRC for you | Individuals and businesses | Form | GOV.UK ↗ |
| SA100 | Self Assessment tax return | Individuals | Form | GOV.UK ↗ |
| SA1 | Register for Self Assessment (not self-employed) | Individuals | Form | GOV.UK ↗ |
| SA303 | Claim to reduce payments on account | Individuals | Form | GOV.UK ↗ |
| SA400 | Register a partnership for Self Assessment | Partnerships | Form | GOV.UK ↗ |
| SA401 | Register a partner for Self Assessment | Partners | Form | GOV.UK ↗ |
| CGT on UK property | Report and pay Capital Gains Tax on a UK residential property sale | Individuals and trustees | Online service | GOV.UK ↗ |
Employment and payroll
| Form | What it is for | Who it is for | Type | |
|---|---|---|---|---|
| Starter checklist | Information for new employees (replaced the P46) | Employers and employees | Form | GOV.UK ↗ |
| P11D | Expenses and benefits return | Employers | Form | GOV.UK ↗ |
| P11D(b) | Class 1A National Insurance return: how to complete | Employers | Guidance | GOV.UK ↗ |
| P87 | Claim tax relief for employment expenses | Employees | Guidance | GOV.UK ↗ |
VAT
| Form | What it is for | Who it is for | Type | |
|---|---|---|---|---|
| VAT1 | Apply for VAT registration | Businesses | Form | GOV.UK ↗ |
| VAT2 | Partnership details for VAT registration | Partnerships | Form | GOV.UK ↗ |
| VAT7 | Cancel your VAT registration | Businesses | Form | GOV.UK ↗ |
| VAT68 | Transfer a VAT registration number | Businesses | Form | GOV.UK ↗ |
| VAT changes | Tell HMRC about changes to your business details | Businesses | Online service | GOV.UK ↗ |
Inheritance Tax and family
Companies House
| Form | What it is for | Who it is for | Type | |
|---|---|---|---|---|
| IN01 | Register a private or public company | New companies | Form | GOV.UK ↗ |
| LL IN01 | Register a limited liability partnership | New LLPs | Form | GOV.UK ↗ |
| CS01 | Confirmation statement | Companies | Form | GOV.UK ↗ |
| AA01 | Change accounting reference date | Companies | Form | GOV.UK ↗ |
| AD01 | Change registered office address | Companies | Form | GOV.UK ↗ |
| AP01 | Appoint a director | Companies | Form | GOV.UK ↗ |
| TM01 | Terminate a director appointment | Companies | Form | GOV.UK ↗ |
| CH01 | Change a director’s details | Companies | Form | GOV.UK ↗ |
| PSC01 | Notify an individual person with significant control | Companies | Form | GOV.UK ↗ |
| SH01 | Return of allotment of shares | Companies | Form | GOV.UK ↗ |
| DS01 | Strike off a company from the register | Companies | Form | GOV.UK ↗ |
| Identity verification | Verify your identity for Companies House | Directors and PSCs | Guidance | GOV.UK ↗ |
Form: official form to complete online or print. Online service: completed through a GOV.UK service. Guidance: GOV.UK guidance explaining how to claim or comply. Links last checked: October 2026.
Before you file. Many filings can now only be made online or through an agent, and some need an authentication code. If you are a client, speak to us first so we can confirm the right form and deadline, or file it on your behalf.
Need help completing a form?
Call 0333 880 8400 or speak to your Client Care Officer.