Built by a tax preparer, not a software company.

Delvio Tax is the work of Ken Lill, CPA — a tax practitioner with 30 years of returns behind him, based in Athens, Georgia. It isn't a venture-funded platform or a rebrand of someone else's engine. It's the software a working CPA built for his own practice, and now for yours.

The idea was simple: stop working around bad software. Every legacy package Ken used made the same trade-offs — desktop installs, endless re-keying, disconnected tools, and support that never fixed anything. Delvio is the answer to all of it: a modern, web-based platform where the AI cites the IRS, the imports actually understand your data, and one client record follows you across the entire suite.

Because the person who builds it is the person who uses it, Delvio improves the way real practices need it to — quickly, and in the right direction.