Tax Collection and Management (Wales) Act 2016 section 157

Late payment interest on devolved taxes

Section 157 establishes when late payment interest is charged on unpaid Welsh devolved taxes and the period over which that interest accrues.

• Late payment interest applies to amounts of devolved tax stated in tax returns, arising from amendments, corrections, or assessments by the Welsh Revenue Authority (WRA), or charged via landfill disposals tax charging notices.
• If the tax is not paid by the late payment interest start date, interest accrues at the late payment interest rate from that start date until the date the tax is actually paid.
• The late payment interest start date is generally the day after the filing date for the relevant tax return, or for landfill disposals tax charging notices, the day after the payment period specified in the Landfill Disposals Tax (Wales) Act 2017.
• Where the taxpayer has died, a different late payment interest start date applies as specified elsewhere in the Act.

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