HMRC Self Assessment online service
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What HMRC Self Assessment online service is
HMRC Self Assessment online service is a free web service for submitting Self Assessment tax returns and reporting income to HMRC. It supports self-employed users and people filing for reasons such as rental or investment income. The online return contains guidance for self-employment, employment, pensions, property, and capital gains, and you can save unfinished work to continue later. Accounts can show previous returns, personal details, and amounts owed, print tax calculations, and enable paperless notifications. Sign-in details and a Unique Taxpayer Reference are required, and HMRC may request photo identification. The service is also available in Welsh. It does not cover partnerships, trusts, estates, non-residents, and some other cases. Compatible commercial software may retrieve selected HMRC information with permission, which lasts 18 months and can be withdrawn. Online and phone support are offered, with phone waits up to 45 minutes.
Who it suits
It is for self-employed people and others who must send a Self Assessment return, including some rental or investment income cases. It suits users whose return type is covered by HMRC’s online service.
What it does well
- Free online filing
- Supports self-employment, rental, and investment income
- Save and resume unfinished returns
- Includes tax guidance and calculations
- Available in Welsh
What to know first
- Does not cover partnerships or trusts
- Some cases require commercial software or forms
- Photo ID may be requested
- Phone waits can reach 45 minutes
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| HMRC Self Assessment online service | Individual returns · not for partnerships, trusts, estates, non-residents or some other specified cases | Free |
As gov.uk lists them, read 11 Oct 2026. The maker's own page has the final word.
Verdict
This free HMRC service covers many individual Self Assessment returns and provides useful account and guidance features. Check its coverage limits before starting, especially for partnerships, trusts, estates, or non-resident returns.
Facts from HMRC Self Assessment online service's own pages
- Account features
- Users can view previous returns, check their details and amount owed, print their tax calculation, and sign up for paperless notifications. · gov.uk, 11 Oct 2026
- Free plan
- Yes · gov.uk, 22 Sept 2026
- Guidance
- The online return includes help text for sections including self-employment, employment, pensions, property and capital gains. · gov.uk, 11 Oct 2026
- Investment income
- Yes · gov.uk, 22 Sept 2026
- Mobile access
- web_only · gov.uk, 22 Sept 2026
- Permission controls
- Permission for compatible software to access HMRC information lasts 18 months and users can check or withdraw it at any time. · gov.uk, 11 Oct 2026
- Purpose
- Self Assessment is HMRC’s system for collecting Income Tax, and people and businesses with other income report it through a tax return. · gov.uk, 11 Oct 2026
- Rental income
- Yes · gov.uk, 22 Sept 2026
- Return coverage limit
- The service cannot file returns for partnerships, trusts or estates, non-residents, or several other listed situations; HMRC directs those users to commercial software or other forms. · gov.uk, 11 Oct 2026
- Save and resume
- Users can save a return and return to it later instead of completing it in one sitting. · gov.uk, 11 Oct 2026
- Security
- HMRC says online filing is more secure than paper filing and may ask users to prove their identity to keep their details safe. · gov.uk, 11 Oct 2026
- Self-employment support
- Yes · gov.uk, 22 Sept 2026
- Sign-in requirements
- Users need sign-in details and a Unique Taxpayer Reference, and may be asked to prove their identity using photo ID. · gov.uk, 11 Oct 2026
- Software data access
- Some compatible commercial Self Assessment software can retrieve PAYE, taxable benefits, self-employed National Insurance and Marriage Allowance details from HMRC with the user’s permission. · gov.uk, 11 Oct 2026
- State filing
- none · gov.uk, 22 Sept 2026
- Support
- HMRC offers online technical support and phone help for sign-in, registration and submission problems; phone waiting times can be up to 45 minutes. · gov.uk, 11 Oct 2026
- Welsh language
- The online filing service is also available in Welsh. · gov.uk, 11 Oct 2026
- Who can use it
- The online filing service is for self-employed people and people who must send a tax return for other reasons, such as rental income. · gov.uk, 11 Oct 2026
Where HMRC Self Assessment online service stands on Freedom251
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