Construction VAT reclaim software built around the rules, not general knowledge. VATBuild classifies every invoice against HMRC Notice 708, catches incorrect VAT charges, and generates your VAT431NB or VAT431C submission report.
Seven capabilities — working together from project setup to HMRC submission.
Every invoice line item is classified using a proprietary rules engine built around the actual legislation — HMRC Notice 708. Every verdict (claimable, review, or not claimable) cites the specific Notice 708 rule that fired. No black-box scores. No hallucinated rules.
Upload PDFs, photographs, scanned receipts, Word documents, or Excel spreadsheets. VATBuild reads every document, extracts each line item, and routes it through the rules engine automatically — supplier name, description, VAT rate, and amount.
Generate CSV, Excel (multi-sheet, colour-coded), and PDF reports pre-filled with your claim totals. Structured for the VAT431NB and VAT431C forms — ready to hand to your accountant or submit directly to HMRC.
Before you submit, VATBuild performs a second-pass AI review of every line item in your claim — flagging overclaiming risks with specific HMRC rule references. Catch problems before HMRC does.
Confirm and track whether each supplier's VAT registration has been checked before you pay. VATBuild records a timestamped verification against the supplier record — so your audit trail shows which VAT numbers were reviewed and when.
A built-in checklist of everything that needs managing throughout your project — completion certificates, supplier VAT records, claim deadlines, and more. Nothing falls through the cracks before you submit.
Track total spend by supplier and category in real time as invoices are uploaded. See exactly where the budget is going and what the VAT position looks like at every stage of the project.
The correct VAT treatment depends on your project type. VATBuild applies the right HMRC rules for each scheme automatically — based on your confirmed project route.
Start free with one project. Upgrade when you need full reports.
1 project — invoice analysis, VAT Advisor chatbot. No card required.
1 project — full claim reports (CSV, Excel, PDF), compliance audit, supplier corrections.
Unlimited projects — everything in Self-Build plus priority support.
Create a free project, upload your first invoice, and see every line item classified against HMRC Notice 708 — in seconds. No card required to start.