Mida OS

SEIS · Advanced Assurance

SEIS advanced assurance, handled properly.

Before you raise under SEIS, HMRC advanced assurance gives your investors confidence that the company will qualify. Mida OS prepares and submits your application from start to finish.

We draft the compliance statement, gather supporting evidence, and manage all correspondence with HMRC. Most founders underestimate the detail required — we don’t leave anything to chance.

One managed stack for your startup’s back office.

Mida OS handles legal, accounting, compliance and payroll for UK founders — one price, everything included. £350/month.