Crypto Tax Calculator is now Summ.

Learn more

/ Authors / Resources

David Chapman

Senior Director, EMEA

David Chapman is the Senior Director for Europe, the Middle East and Africa (EMEA) at Summ (previously Crypto Tax Calculator), where he leads new business and partnerships across the region. He has spent more than 20 years working with governments and the private sector with a particular focus on tax and compliance solutions.

CARF guide for accountants: what it means for you and your clients
Blog 14 Oct 2026
CARF guide for accountants: what it means for you and your clients

What the OECD's Crypto-Asset Reporting Framework means for UK accountants: what HMRC will see from 2027, what it will miss, and what to do for clients now.

Read More

Choose your country

North America


Asia Pacific


Europe


Africa


South America