When must Self Assessment tax returns be submitted?

Self Assessment tax returns must be submitted annually by 31 January following the end of the tax year. This deadline is crucial as it allows individuals to report their earnings and pay any tax due for the previous tax year. The tax year in the UK runs from 6 April to 5 April of the following year, making the submission deadline for returns on 31 January of the next year an essential part of the tax process. Ensuring compliance with this deadline is important to avoid penalties and interest on any unpaid tax.

Other submission frequencies, such as quarterly or monthly, do not align with the Self Assessment system, which is structured around an annual reporting cycle. Thus, understanding the correct timeframe for submission is vital for anyone responsible for managing tax returns.