More timely payment of ITSA - Landlords Financial | Landlords Bookkeeping Accountants
Over the summer, HMRC consulted on proposals for the timelier payment of income tax due under Self-Assessment (ITSA).
Currently, taxpayers within Self-Assessment must pay their income tax and any Class 4 National Insurance by midnight on 31 January after the end of the tax year to which it relates. This means that income tax and Class 4 National Insurance for 2025/26 must be paid in full by midnight on 31 January 2027.
If the tax and Class 4 National Insurance bill for the previous tax year was £1,000 or more, unless 80% of the amount due for the year was collected at source, such as under PAYE, the taxpayer must make payments on account of the current year’s liability on 31 January in the tax year and on 31 July after the end of the tax year. Each payment on account is 50% of the previous year’s tax and Class 4 National Insurance liability. Any balance due must be paid by 31 January after the end of the tax year.
Taxpayers with PAYE income
Taxpayers who are within Self-Assessment and who have a PAYE source of income will make in-year payments on account of their Self-Assessment tax bill through PAYE from 6 April 2029 (2029/30 tax year).
Other taxpayers
Where a taxpayer has no or insufficient PAYE income for tax and Class 4 NIC that they owe through Self-Assessment to be collected in year through PAYE, HMRC are exploring increasing the frequency of payments on account and advancing them so that all payments on account are made in the same tax year as the income to which they relate. Under this proposal, the payments would be based on the taxpayer’s forecasted liability which in turn would be based on past returns. Once the taxpayer had reported their liability for the year, the amounts paid and owed would be reconciled, with the taxpayer making a balancing payment or receiving a refund as necessary.
Transition year
Moving to in-year payment will mean that in the transition year taxpayers may be paying tax for more than one tax year. Although the actual tax paid will not change, moving the payment dates in year may cause cashflow difficulties for taxpayers. HMRC are considering options to support taxpayers during the transition, such as spreading payments for previous years over a longer time frame.

More timely payment of ITSA - Landlords Financial | Landlords Bookkeeping Accountants




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