The Seisly Guide
Long-form and short-form pieces for UK startup founders preparing an application.
Lead piece · First edition
What HMRC actually looks for.
78-page practitioner guide covering the nine tests HMRC applies, the language patterns behind rejections and approvals, and a fully worked annotated application. Written by the founder of the UK’s first SEIS fund.
Pitch decks
The five slides where applications fail on language, what HMRC reads for on each, and the substitution that says the same thing in qualifying terms.