Yes. Converting a barn (or other agricultural building) from non-residential use into a home typically qualifies for the VAT431C DIY conversion scheme. Your contractor's building services should be charged at 5% VAT, and materials you buy directly are charged at 20% — that 20% is fully reclaimable via VAT431C. You must submit within 6 months of your completion certificate date.
Barn conversions are among the highest-value VAT431C claims — larger footprints, structural complexity and higher material costs mean more reclaimable VAT. A well-organised barn conversion claim is worth taking seriously.
Agricultural barns that have been used exclusively for non-residential purposes (livestock housing, grain storage, vehicle storage) qualify under Notice 708 Section 7 as non-residential buildings.
If the barn included a feed store, office or any space that was previously treated as residential (even a worker's bothy), that element may not qualify. The entirety of the previous use matters.
Groundworks, structural work, roofing, glazing, first and second fix — all building services on a qualifying barn conversion should be at 5%.
Drainage work, access roads and service infrastructure connected to the conversion are often incorrectly charged at 20% — check these lines specifically on your contractor invoices.
VATBuild is not affiliated with HMRC. References to HMRC publications are for informational purposes. Always consult a qualified tax adviser before submitting a reclaim.
VATBuild handles the detailed rules specific to barn conversions: it checks which invoice lines qualify as building services (5%), which materials are eligible (20%, reclaimable), and flags common barn conversion invoice errors — particularly VAT on drainage, access works, and utility connections. It separates any non-conversion works carried out on the same site so the claim covers only eligible expenditure.