Hassle-Free Self Assessment & Tax Returns – Filed Right, On Time.

HMRC requires individuals to file a Self Assessment tax return (SA100) if they are self-employed, a company director, a landlord receiving rental income, have untaxed income over £1,000, earn over £100,000 from employment, receive foreign income, or have capital gains on assets such as property, shares, or cryptocurrency. The deadline for online SA100 submission is 31 January following the tax year end (5 April), and the tax owed must also be paid by the same date.

The Payments on Account system means that if your Self Assessment tax bill is over £1,000, HMRC will require you to make advance payments: 50% on 31 January and 50% on 31 July. First-time filers are often caught off-guard by having to pay 150% of their year-one liability in a single January. Careful cashflow planning ahead of this date is essential, particularly for directors, landlords, and sole traders.

Capital Gains Tax (CGT) on UK residential property must now be reported to HMRC within 60 days of completion (since April 2020), with tax paid on the same deadline. For shares, cryptocurrency, and other assets, CGT is reported annually through the SA100. The annual CGT exempt amount has been reduced from £12,300 to £3,000 from April 2024, significantly increasing tax liability for investors and landlords who previously fell below the threshold.

Non-domiciled UK residents and NRIs with UK income or assets face additional complexity: the remittance basis election, the arising basis rules, and India–UK Double Taxation Avoidance Agreement (DTAA) relief. Our team handles cross-border SA100 filing, foreign income disclosure, and DTAA treaty claims — ensuring you do not pay tax twice on the same income in both countries.