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Official forms for tax, payroll and company administration. Start with a task or form number, then get the current download or online service directly from the organisation that maintains it.

70 forms & servicesChecked 5 October 2026
Before you fileChoose the correct tax year and read the official eligibility notes. Some paper forms have been replaced by online services. Links open GOV.UK in a new tab; HCA does not collect your form entries here.

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What do you need to do?

Search “VAT”, “director”, “SA100” or a task in your own words.

Showing 70 forms and services

64-8

HMRC & benefits

Authorise your accountant (opens GOV.UK in a new tab)

Give an agent permission to deal with specified taxes on your behalf.

PDF / online authorisation
Before you use this form

The authorisation route depends on the tax service. A paper authority does not grant every kind of online access.

CWF1

Self Assessment

Register as a sole trader (opens GOV.UK in a new tab)

Follow the current self-employment registration route for Self Assessment and National Insurance.

Online registration guidance
Before you use this form

Use the current registration route for your circumstances. Registering yourself and registering through an agent can use different services.

SA1

Self Assessment

Register for Self Assessment (opens GOV.UK in a new tab)

Find the correct registration or reactivation route, including for income other than self-employment.

Online registration guidance
Before you use this form

Use the checker to find your registration or reactivation route. An agent may use a different service.

SA100

Self Assessment

Complete your personal tax return (opens GOV.UK in a new tab)

Open the current return guidance, paper form and supplementary-page links for the year being filed.

Online filing / paper return
Before you use this form

The latest completed-year return is 2025/26. Choose the year of the income, not the year in which you download the form.

SA105

Self Assessment

Report UK property income (opens GOV.UK in a new tab)

Get the property supplementary pages and notes for a personal Self Assessment return.

PDF & notes
Before you use this form

Select the correct tax year. Overseas property uses different supplementary pages.

SA109

Self Assessment

Report residence and foreign-income reliefs (opens GOV.UK in a new tab)

Get residence and foreign income and gains regime supplementary pages.

PDF & notes
Before you use this form

Select the tax year you are filing for and use its current notes. Check the filing route: HMRC’s standard online service does not support every residence case.

SA payment

Self Assessment

Pay a Self Assessment bill (opens GOV.UK in a new tab)

Use current official payment methods and the correct reference for your bill.

Payment service & guidance
Before you use this form

For branch cash or cheque payments, HMRC requires paper statements and the paying-in slip it issued. Otherwise choose another official payment method.

Starter checklist

Payroll

Start an employee’s payroll record (opens GOV.UK in a new tab)

Collect starter details when the employee has no suitable P45 or the employer needs additional information.

Online form / PDF
Before you use this form

The employee gives this to their employer. It is not submitted as a tax return through this website.

P50

HMRC & benefits

Claim tax back after stopping work (opens GOV.UK in a new tab)

Check eligibility for a current-year repayment after leaving employment.

Online / print-and-post
Before you use this form

Not the route for every leaver. A new job, taxable benefits or pension income can change how a refund is handled.

P55

HMRC & benefits

Check a pension tax refund (opens GOV.UK in a new tab)

Use HMRC’s checker to find the claim route for tax overpaid on a pension payment.

Eligibility checker / online claim guidance
Before you use this form

The route depends on the type of pension payment, whether the pot was emptied and your other income. Follow the checker before choosing a claim form.

P87

HMRC & benefits

Claim qualifying employment expenses (opens GOV.UK in a new tab)

Find the current form, evidence requirements and alternative online route.

PDF & claim guidance
Before you use this form

Employee tax relief for working from home is unavailable from 2026/27. Eligible earlier-year claims may still be possible. Self Assessment filers claim qualifying expenses through their return.

VAT1

VAT & CIS

Register for VAT by post (opens GOV.UK in a new tab)

Use the official paper registration route where HMRC’s conditions for postal registration apply.

Paper form by request / online alternative
Before you use this form

Most businesses register online. If you need the postal route, follow HMRC’s instructions to request VAT1 and use the form HMRC sends you. The downloadable PDF on this page contains guidance notes.

VAT7

VAT & CIS

Cancel a VAT registration (opens GOV.UK in a new tab)

Follow the current cancellation route and check the final-return requirements.

Online / paper guidance
Before you use this form

Use the online or postal route that applies to your situation. HMRC confirms the cancellation date; check the final-return requirements.

AA01

Companies House

Change your company accounting reference date (opens GOV.UK in a new tab)

Use this form to change an accounting reference date relating to either the current or immediately previous accounting period.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

AA02

Companies House

File your dormant accounts (opens GOV.UK in a new tab)

Use this form to submit dormant accounts for a company limited by shares.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

AP01

Companies House

Appoint a director (opens GOV.UK in a new tab)

Use this online form to appoint an individual as a company director.

Official download & filing guidance
Before you use this form

Check the current identity-verification requirements before filing. Follow the official page’s filing instructions and eligibility guidance.

AP02

Companies House

Appoint a corporate director (opens GOV.UK in a new tab)

Use this form to appoint a corporate body or firm as a director.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

AP03

Companies House

Appoint a secretary (opens GOV.UK in a new tab)

Use this form to appoint an individual as a secretary.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

AP04

Companies House

Appoint a corporate secretary (opens GOV.UK in a new tab)

Use this form to appoint a corporate body or firm as a secretary.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

CH01

Companies House

Change the details of a director (opens GOV.UK in a new tab)

Use this form to change the details of an individual who is a director.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

CH03

Companies House

Change the details of a secretary (opens GOV.UK in a new tab)

Use this form to change the details of an individual who is a secretary.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

IN01

Companies House

Register a private or public company (opens GOV.UK in a new tab)

Application to register (incorporate) a private or public company within the UK.

Official download & filing guidance
Before you use this form

Check the current identity-verification requirements before filing. Follow the official page’s filing instructions and eligibility guidance.

MR01

Companies House

Register particulars of a charge (opens GOV.UK in a new tab)

Register a mortgage or charge at Companies House that was created or evidenced by an instrument on or after 6 April 2013.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

NM01

Companies House

Change a company name (opens GOV.UK in a new tab)

Use this form to give notice of an unconditional change of name by resolution.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

SH01

Companies House

Return of allotment of shares (opens GOV.UK in a new tab)

Use this form to give notice of shares allotted following incorporation. Include the optional continuation pages if needed.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

SH03

Companies House

Notify a purchase of own shares (opens GOV.UK in a new tab)

Use this form to give notice of a purchase by a limited company of its own shares.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

SH06

Companies House

Notify a cancellation of shares (opens GOV.UK in a new tab)

Use this form to give notice of a cancellation of shares by a limited company on purchase. Include the optional continuation pages if needed.

Official download & filing guidance
Before you use this form

Check the official page for filing routes, eligibility and any identity-verification requirements.

CS01

Companies House

Confirmation statement (opens GOV.UK in a new tab)

Use this form to confirm that the company's details are up to date.

Official download & filing guidance
Before you use this form

Current confirmation statement. Replaces the old AR01 annual return. Check the current identity-verification requirements before filing.

Not sure which one applies?

We’ll help you find the right route.

Speak to HCA before submitting a form that changes your tax or company position.

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Form titles and public-sector descriptions are sourced from GOV.UK under the Open Government Licence v3.0. Official publishers maintain downloads and filing services. HCA editorial review is pending.

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