Vat Consultant London Proactive Consultancy Group is a highly dedicated team of VAT specialist accountants with expertise in all areas of financial management, accounting and taxation (both compliance and planning). We recognized long ago that for many businesses there is a real need for a high quality and focused input by a VAT specialist Advice on various VAT areas that are designed to define and achieve financial objectives. We work closely with our clients to identify their needs and then program our work accordingly.