Form guide
Form SA100SA100
The UK Self Assessment tax return.
United KingdomTaxHMRC
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Related documents
All forms- Form SA106SA106The foreign pages — income and gains from outside the UK.
- Form SA108SA108The capital gains summary — what you sold, what it cost, what the gain was.
- Form SA109SA109The residence and domicile pages, which decide how much of your worldwide income the UK taxes.
- Form SA900SA900The Self Assessment return for a trust or a deceased person's estate.
- Form DT-IndividualDT-IndividualClaims relief under a double taxation treaty, so the same income is not taxed twice.
- Form 64-864-8Authorises an accountant to deal with HMRC for you.