What is the effect of a tribunal determination under section 49 of the Tax Collection and Management (Wales) Act 2016?

A tribunal determination on a referred question is binding on both the taxpayer and WRA, treated in the same way as a preliminary ruling in a formal tax appeal. Neither party can ignore or override the determination, and WRA must factor it into its enquiry conclusions and any amendments to the tax return.

How must WRA apply a tribunal determination when completing its enquiry?

WRA is required to take the tribunal's determination into account when reaching its conclusions on the enquiry. Any amendments WRA makes to the tax return must be consistent with the tribunal's ruling. WRA cannot reach a conclusion or make changes to the return that contradict the determination on the referred question.

Can a tribunal determination under section 49 be reopened on appeal?

No, the determined question cannot be reopened on appeal except in narrow circumstances where a preliminary issue in an appeal could itself be revisited. This provides certainty and prevents the same point from being argued repeatedly through different stages of the dispute resolution process.

How does section 49 apply in practice to a WRA land transaction tax enquiry?

If WRA refers a question to the tribunal during an enquiry — for example, whether a property qualifies as a dwelling — the tribunal's determination settles that point. WRA must complete the enquiry and issue its closure notice and return amendments consistently with the finding, and the taxpayer cannot reargue the point on appeal.

Tax Collection and Management (Wales) Act 2016 section 49

Effect of determination

Section 49 explains the binding nature of a tribunal determination made on a question referred during a WRA enquiry, and how it must be applied.

A tribunal determination on a referred question is binding on both the taxpayer and WRA, in the same way as a preliminary ruling in a tax appeal.
WRA must take the tribunal's determination into account when reaching its conclusions on the enquiry.
Any amendments WRA makes to the tax return as a result of the enquiry must reflect the tribunal's determination.
The determined question cannot be reopened on appeal, except in the limited circumstances where a preliminary issue in an appeal could itself be reopened.

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