CS01 filing for UK company portfolios
Confirmation Statement Software (CS01) for UK Companies
CS01s pre-filled from your live register and tracked against each entity's review period. Never miss a confirmation statement again.
Your first entity is free. No credit card required.

EntityFlo tracks the confirmation statement (CS01) review period for every UK company in your portfolio, pre-fills the form from your register: SIC codes, statement of capital, shareholders, PSCs: and lodges it with Companies House.
What breaks once you pass five entities.
Twenty companies means twenty review periods
Each based on incorporation date or the last CS01 filed, and each easy to lose track of without a system watching them.
The data is scattered, not the filing
SIC codes set up years ago, a shareholder register that may not match Companies House, PSC data updated in three places.
Missing the 14-day window risks strike-off
A confirmation statement that slips past its deadline puts the company at risk of being struck off the register.
Why confirmation statements slip without a system
The pain isn't lodging the CS01, it's gathering the data. EntityFlo removes the scavenger hunt entirely.
Review periods tracked automatically
Every entity's 12-month window is calculated and monitored, with alerts well before the 14-day filing deadline.
One register, always current
SIC codes, capital and shareholder data live in one place, kept current as changes happen.
One-click no-change filing
If nothing has changed, EntityFlo prepares a 'no change' CS01 in a single click.
Bulk filing for portfolios
Corporate secretariats can generate, review and lodge multiple confirmation statements in a single workflow.
The EntityFlo operating model.
Track the 12-month review period for every UK company.
Pre-fill CS01s from the live register: SIC codes, capital, shareholders, PSCs.
Surface upcoming confirmation statements 30 days before they fall due.
Support bulk preparation for corporate secretariats with large portfolios.
Lodge with Companies House directly from the workflow.
Built for CFOs, General Counsel & Company Secretaries.
What confirmation statement management actually covers
A CS01 confirms that the information Companies House holds is up to date. The fee is £34 online, and the filing window is 14 days from the end of the review period.
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EntityFlo vs. spreadsheets vs. other filing tools
Most tools help you file one CS01 at a time. EntityFlo tracks the whole portfolio from one register.
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Because We’ve Done the Work Ourselves.
EntityFlo was built by people who understand the complexity, risk and manual work behind managing corporate groups.
"We went from spreadsheets and email chains to having every entity, every officer, and every deadline in one place. The compliance AI alone has saved us from three potential ASIC penalties."
"EntityFlo's structure charts finally gave our board the visibility they needed. Every ownership chain mapped, every UBO calculated. The lenders were impressed."
"Managing 40+ trusts and companies across three generations was chaos. EntityFlo made it simple. The compliance alerts alone are worth the price."
One flat monthly rate. Scales with your group.
No per-document fees. No per-filing fees. No paywalled AI tier.
The questions buyers actually ask.
How often must a confirmation statement be filed?
At least once every 12 months. The review period starts the day after the last CS01 (or incorporation) and ends 12 months later. Filing is due within 14 days of the period end.
What if information has not changed?
You still must file: confirming the information is unchanged. EntityFlo prepares a "no change" CS01 in a single click.
Can I update PSC information at the same time?
PSC changes must be notified to Companies House separately within their own 14-day windows. EntityFlo handles both in one workflow.
Do you charge per filing?
No. Confirmation statements are included in your EntityFlo subscription: you only pay the £34 Companies House fee.
Can I file for a whole portfolio at once?
Yes. Corporate secretariats can generate, review and lodge multiple CS01s in a single bulk workflow.
Related capabilities
Never miss a confirmation statement again
Track every UK entity's review period from one register. First entity free, forever.