The market’s only tax engine & reporting application
VATCalc offers the first and only single application with full global VAT engine calculations and returns preparation. VATCalc’s is uniquely built on national tax legislation, the EU VAT Directive and OECD VAT Guidelines.
It is used by hundreds of businesses of all sizes to process millions of transactions and submissions each month benefiting from:
1. Unparalleled accuracy | of transaction calculations or audits, pinpointing errors with legislative articles with suggested adjustments. Keeping challenges from counterparties or tax authorities to a minimum; |
2. Single solution for all VAT obligations | ending the historic requirement for multiple solutions from various providers, with just a single integration and support |
3. Saving hours of reconciliations | with all invoices, returns and digital reporting processed on a single application cutting hours of manual reconciliation work and audit-triggering errors; |
4. Fast and inexpensive implementations | as all use cases and business models are already covered: goods; services; digital; and many more. |
5. Low-cost scalability | with stateless microservices architecture, managed by Google Cloud IAS |
1 application with 3 products for seamless determination & reporting
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1. VAT Auditor batch invoice checker
If you are unsure of the VAT on your sales or purchase invoices, VAT Auditor offers an instant check via API or on-screen upload of batch invoices.

VAT Auditor is ideal if you do not have the technical resources for a full scale tax engine implementation as it can be adopted without any need for help from your IT or ERP teams.
It combines the power of VATCalc’s legislation driven determination engine with highly flexible exception checks to quickly and easily assess whether the correct VAT was charged before you send, pay or report your invoices. And since it’s fully implemented with our VAT Filer reporting, it can also feed approved transaction data instantly into any return.
Determination checking is also performed by using the attributes about a transaction and running them against VATCalc’s powerful VAT determination engine to re-determine the transaction using the most complete and granular VAT legislation content on the market. This type of check identifies transactions that VAT Advisor would have taxed differently and highlights them to the user for investigation and correction.
2. VAT Calculator global tax engine
Calculator is a web service that is called in real-time programmatically by any transaction system (typically an ERP, billing system or purchasing system) to determine the correct VAT on a transaction. This includes determining the VAT amount, the VAT treatment, tax code, invoice messaging, relevant VAT registration numbers, reporting boxes etc. You can then share VAT transactions directly with VAT Filer for global returns preparation and submissions.
3. VAT Filer global returns & digital reporting
VAT Filer is designed to help companies that want to centralise VAT compliance into a common operation or who want to have a single process and view of their distributed VAT compliance processes.

It is built on VATCalc’s unified VAT application to be ready for the digitisation of VAT and the shift to continuous transactional compliance such as e-invoicing and digital reporting.
Data can be ingested via connectors or extractors to major ERP’s. This may include using VAT Auditor product, which performs a full audit by re-determining the tax treatment against the legislation as well as applying multiple compliance checks to make sure the data being used is correct from a VAT point of view.
VAT Filer’s user experience has been specifically designed to be easy and to eliminate the difficulties users had with previous generation compliance tools. Simple workflow and collaboration features help users stay ahead of their work and the activity log ensures that a clear audit trail is maintained.