- Companies
- Specialist contractors
- Swindon
- Mortimus Services Ltd
Mortimus Services Ltd
- Company number
- 16791973
- Incorporated
- 17 Oct 2025
- Registered office
- Office D23 Chelworth Industrial Estate, Cricklade, Swindon, SN6 6HE
- Nature of business
- Other specialised construction activities n.e.c.; Motion picture production activities; Television programme production activities
Mortimus Services Ltd is a newly incorporated private limited company registered in Swindon, company number 16791973, one of 130 specialist construction companies in Swindon. Its next accounts are due at Companies House on 17 July 2027, and its first CT600 is due at HMRC on 16 October 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Mortimus Services Ltd is registered
The registered office is in Swindon (SN6), in the Wiltshire local authority area, South West. Show SN6 6HE on a map.
Other trade companies in SN6
- Rsmcar Repairs LtdMechanics and garages
- Ogilvie Hughes Electrical LtdElectricians
- Nelson Home Improvements LtdRoofers
- Atwoair LimitedPlumbers and heating engineers
- Callum Gibbs Plumbing and Heating LtdPlumbers and heating engineers
- Hampton Developments (Blunsdon) LimitedProperty developers
- Mays Property Group LtdProperty developers
- Cotswold Trade Centre LimitedProperty developers
Also registered at this address
4 other companies use the same registered office as Mortimus Services Ltd.
- Gradus Groundworks LtdSpecialist contractors
- M&A Tape and Jointing LimitedPlasterers
- Ogilvie Hughes Electrical LtdElectricians
- Sheen Motors LtdMotor traders
What happens if Mortimus Services Ltd 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 17 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Jul 2027 to 17 Aug 2027 | £150 |
| 1 to 3 months late | 18 Aug 2027 to 17 Oct 2027 | £375 |
| 3 to 6 months late | 18 Oct 2027 to 17 Jan 2028 | £750 |
| More than 6 months late | From 18 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 2028 | 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
- 16791973
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 October 2025
- Registered office
- Office D23 Chelworth Industrial Estate, Cricklade, Swindon, SN6 6HE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Motion picture production activities (SIC 59111)
Television programme production activities (SIC 59113) - Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
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 Swindon
Other active specialist construction companies registered in Swindon.
- MPW Construction Groundwork Ltd2018
- MRT Construction & Design UK Ltd2025
- MRT Construction UK Ltd2019
- Mulberry Sports Ltd2019
- Mundy Groundwork Limited2019
- Og Groundworks Limited2025
- P G Events Limited2007
- Pacd Drylining Ltd2024
All specialist construction companies in Swindon · All trades in Swindon · Specialist contractors across the UK
Frequently asked questions
When are Mortimus Services Ltd's accounts due?
Mortimus Services Ltd's next accounts are due at Companies House by 17 July 2027 (in 277 days), covering the period to 31 October 2026.
When is Mortimus Services Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 16 October 2026, due by 16 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mortimus Services Ltd still trading?
Mortimus Services Ltd 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 Mortimus Services Ltd do?
Mortimus Services Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Motion picture production activities (SIC 59111); Television programme production activities (SIC 59113).
How old is Mortimus Services Ltd?
Mortimus Services Ltd was incorporated on 17 October 2025, less than a year ago.
What is the penalty if Mortimus Services Ltd 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 Mortimus Services Ltd 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.