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Ftax for Individuals

Self Assessment for Individuals

How to complete your SA100

If you’re taxed mainly through PAYE but have extra income or claims to make, this hub is for you. It explains how to complete your SA100 online and points you to focused help for dividends, savings interest, capital gains, foreign income, pension reliefs, and the High Income Child Benefit Charge. When you’re ready, you can file end-to-end with Ftax: HMRC-recognised, clear, and built for UK taxpayers.


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Ftax for Self Assessments

Ftax Individual Self Assessment SA100 (2024/25)

2 Credits
£19.50

Who does this apply to?

This section is designed for non-business filers who still need a return. Typical cases include employees with investment income, parents affected by the child benefit charge, investors who sold shares or crypto, and people with overseas income to declare. 

It also covers specific non-business groups (e.g., ministers of religion, UK expats with UK-source income).

If you’re self-employed or receive rental income, you’ll get better-fitting guidance, and the right products, in the Businesses area.

What you’ll need

Have your core IDs to hand, National Insurance number, UTR, and Government Gateway login, then gather the year’s figures. Aim for completeness first; precision follows naturally once everything’s in front of you.

  • Employment: P60/P45, and any P11D/benefits statements
  • Savings & investments: bank interest and dividend summaries
  • Capital gains (if relevant): dates, proceeds, costs/fees for disposals
  • Foreign income (if relevant): amounts received and any tax withheld
  • Reliefs & adjustments: pension contributions, Gift Aid, student loan details

A little prep now speeds up the return and reduces the chance of amendments later.

File online with Ftax

Ftax mirrors the HMRC SA100 you recognise and adds guidance where it matters. Answer a short set of prompts and we’ll switch on only the pages you need, SA108 for Capital Gains or SA106 for Foreign income when your answers indicate them. 

Helpful notes sit beside each box to explain what belongs there; built-in validation checks for gaps and obvious inconsistencies before submission.

When you’re ready, authorise securely with your Government Gateway and submit to HMRC from inside Ftax. You’ll receive an HMRC receipt and a downloadable calculation for your records. If a figure changes later, you can amend within HMRC’s timelines.

Keep good records

  • Save your submitted return, tax calculation, and supporting evidence. As a rule of thumb, most individual filers should keep records for at least 22 months after the end of the tax year (longer if you also have business or property income).

File Now with Ftax

Ftax for Self Assessments

Ftax Individual Self Assessment SA100 (2024/25)

2 Credits
£19.50

Disclaimer

Ftax does not provide accounting, tax, business or legal advice. This guide has been provided for information purposes only. You should consult with your own professional advisors or with HMRC for advice directly relating to your business before taking action in relation to any of the content provided. Ftax Support will only be able to assist you with matters directly concerning the Ftax products and service.

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