UK HMRC published the following guidance on 1 April 2022 to assist taxpayers in checking whether they need to notify HMRC under the new rules for large businesses to notify an uncertain tax treatment. HMRC also published an impact assessment and statutory guidance on how to notify HMRC of an uncertain tax treatment. --- Check if you need to notify HMRC about an uncertain tax treatment Find out if you must notify HMRC about an uncertain amount of Corporation Tax, Income Tax (including PAYE) or VAT if you're a large business. You have an uncertain tax treatment if either you:...