You would need to purchase your vehicle before the end of the financial year on 5th April to be able to claim the benefit and reduce your tax liability this year.
What if I get my van after the 31st of March?
If you purchase your vehicle after 5th April, you will miss this year’s deadline and will need to wait until the end of the next tax year before you can claim the benefit. Your tax liability for that year will thereafter be reduced.