- Companies
- Specialist contractors
- St Neots
- Sign Up Systems Limited
Sign Up Systems Limited
- Company number
- 05971555
- Incorporated
- 18 Oct 200619 years trading
- Registered office
- Eltisley Business Park Potton, Abbotsley, St Neots, Cambridgeshire, PE19 6TX
- Nature of business
- Other specialised construction activities n.e.c.
Sign Up Systems Limited is a 19-year-old private limited company registered in St Neots, company number 05971555, one of 7 specialist construction companies in St Neots. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £929K (-51.6%) on the year before, to £870K.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £1.2M against £649K owed within a year: 1.9 times cover.
- 24 employees on average, down from 25 the year before.
- Balance sheets on record for 8 years, 2014 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £870K | £631K | £1.2M | £649K | 24 |
| 31 Oct 2024 | £1.8M | £665K | £1.3M | £564K | 25 |
| 31 Oct 2023 | £1.8M | £428K | £1.3M | £602K | 25 |
| 31 Oct 2022 | £1.5M | £566K | £1.4M | £785K | 23 |
| 31 Oct 2021 | £1M | £404K | £1.1M | £623K | 15 |
| 31 Oct 2020 | £1M | £468K | £665K | £346K | 14 |
| 31 Oct 2015 | £421K | £234K | £571K | £217K | |
| 31 Oct 2014 | £186K | £202K | £455K | £209K |
Where Sign Up Systems Limited is registered
The registered office is in St Neots (PE19), in the Huntingdonshire local authority area, East of England. Show PE19 6TX on a map.
Other trade companies in PE19
- JNW Plumbing Services LimitedPlumbers and heating engineers
- Sa Special Works LtdFinishing trades
- Cambridgedecorator LtdPainters and decorators
- ST Neots Tyre Warehouse LimitedMechanics and garages
- Raed Historic Building Conservation LtdBuilders
- GC Services (Newco) LimitedFinishing trades
- 4Front Technologies LimitedElectricians
- Duke Build LtdBuilders
What happens if Sign Up Systems Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 05971555
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 October 2006 (19 years ago)
- Registered office
- Eltisley Business Park Potton, Abbotsley, St Neots, Cambridgeshire, PE19 6TX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 18 October 2025
- Charges (mortgages)
- 0 outstanding of 2 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in St Neots
Other active specialist construction companies registered in St Neots.
- Spacemaker Developments Ltd2017
- The Kitchen Magician Limited2004
- The Traditional Flooring Company Limited1999
- HRB Mechanical Services Limited2019
- Ib Fabrication Services Ltd.2012
- J & C Services (Stortford) Ltd2000
All specialist construction companies in St Neots · All trades in St Neots · Specialist contractors across the UK
Frequently asked questions
When are Sign Up Systems Limited's accounts due?
Sign Up Systems Limited's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Sign Up Systems Limited's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Sign Up Systems Limited still trading?
Sign Up Systems Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Sign Up Systems Limited do?
Sign Up Systems Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Sign Up Systems Limited?
Sign Up Systems Limited was incorporated on 18 October 2006, 19 years ago.
What is the penalty if Sign Up Systems Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Sign Up Systems Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.