Knowledge-Base Development Limited company overview
Knowledge-Base Development Limited is a private limited company registered with company number 01726494. It was incorporated on 25 May 1983 and its current status is active.
The registered office is at 44a Bilton Towers, Great Cumberland Place, London, W1H 7LD. The company has 3 active officers.
Knowledge-Base Development Limited upcoming deadlines
Year end accounts
Due 31 Dec 2026
Confirmation statement
Due 7 May 2027
Corporation tax payment
Due 1 Jan 2027
Dates are the ones Companies House holds for this company. Late accounts trigger automatic Companies House penalties starting at £150, and HMRC charges interest on late corporation tax.
Knowledge-Base Development Limited at a glance
43 years
Trading age
15,880 days since incorporation
3
Active officers
Peter, Mervyn, Peter
100
Filings on record
Latest: 5 May 2026
100/100
Filing health score
Accounts and statement up to date
Directors of Knowledge-Base Development Limited
Nature of business (SIC codes)
62090
Other information technology service activities
70229
Management consultancy activities other than financial management
72200
Research and experimental development on social sciences and humanities
90010
Performing arts
Allowable expenses for Knowledge-Base Development Limited
Based on Knowledge-Base Development Limited's SIC codes (62090, 70229, 72200, 90010), these are typical tax-deductible expenses for a software & it and professional & creative services company. Claiming them lowers the profit you pay corporation tax on.
Computers & hardware
Laptops, monitors and devices used for work.
Software subscriptions
Cloud hosting, SaaS tools, licences and domains.
Training & courses
Courses that update skills for your current work.
Working from home
A share of household bills or the £6-a-week flat rate.
Design tools & equipment
Creative software, cameras, drawing tablets and props.
Professional memberships
HMRC-approved professional body subscriptions.
Business travel
Trains, flights, hotels and subsistence for client work.
Working from home
A share of household bills or the £6-a-week flat rate.
Vehicle & mileage
45p a mile for the first 10,000 business miles in a personal car.
Staff & director salaries
Wages, employer NI and pension contributions paid through PAYE.
Accountancy & legal fees
Bookkeeping, year-end accounts, tax advice and company secretarial costs.
Business insurance
Public liability, professional indemnity and employer's liability cover.
Phone & internet
Business mobile contracts, broadband and a share of home internet.
General guidance only — every expense must be wholly and exclusively for business. Ask an accountant
Tax guide for businesses like Knowledge-Base Development Limited
How much tax does a software & it and professional & creative services company pay?
UK companies pay corporation tax at 19% on profits up to £50,000, rising to 25% above £250,000, with marginal relief in between. Claiming every allowable expense reduces taxable profit.
Does a company like Knowledge-Base Development Limited need to register for VAT?
VAT registration is compulsory once taxable turnover passes £90,000 in any rolling 12 months. Many businesses register voluntarily to reclaim VAT on costs.
How much does an accountant cost for a limited company in London?
Fixed-fee accountants typically charge £60–£200 a month for a small limited company, covering year-end accounts, corporation tax and the confirmation statement.
Can directors of Knowledge-Base Development Limited pay themselves in dividends?
Most small company directors take a low salary plus dividends. Dividends are paid from profits after corporation tax, with an annual £500 dividend allowance.
Filing history
5 May 2026 · CS01
Confirmation statement made on 23 Apr 2026 with no updates
30 Dec 2025 · AA
Micro-entity accounts made up to 31 Mar 2025
6 May 2025 · CS01
Confirmation statement made on 23 Apr 2025 with updates
31 Dec 2024 · AA
Unaudited abridged accounts made up to 31 Mar 2024
11 May 2024 · CS01
Confirmation statement made on 23 Apr 2024 with no updates
30 Dec 2023 · AA
Micro-entity accounts made up to 31 Mar 2023
4 May 2023 · CS01
Confirmation statement made on 23 Apr 2023 with no updates
30 Dec 2022 · AA
Micro-entity accounts made up to 31 Mar 2022
22 Sep 2022 · TM01
Termination of appointment of John Arthur Campbell as a director on 15 Sep 2022
23 Apr 2022 · CS01
Confirmation statement made on 23 Apr 2022 with no updates
28 Dec 2021 · AA
Micro-entity accounts made up to 31 Mar 2021
30 Apr 2021 · CS01
Confirmation statement made on 23 Apr 2021 with updates
29 Dec 2020 · AA
Micro-entity accounts made up to 31 Mar 2020
6 May 2020 · CS01
Confirmation statement made on 23 Apr 2020 with no updates
30 Dec 2019 · AA
Micro-entity accounts made up to 31 Mar 2019
24 Apr 2019 · CS01
Confirmation statement made on 23 Apr 2019 with no updates
30 Dec 2018 · AA
Micro-entity accounts made up to 31 Mar 2018
24 Apr 2018 · CS01
Confirmation statement made on 23 Apr 2018 with no updates
26 Dec 2017 · AA
Dormant accounts made up to 31 Mar 2017
26 Apr 2017 · CS01
Confirmation statement made on 23 Apr 2017 with updates
Showing the latest 20 of 100 filings. See the full history on Companies House
Accounting services for Knowledge-Base Development Limited
From tax to payroll, find accountants who look after every part of Knowledge-Base Development Limited’s finances.
Year-end accounts
Statutory accounts prepared and filed with Companies House on time, every year.
Corporation tax
CT600 returns filed with HMRC and tax planned so you only pay what you owe.
Payroll
Pay your team on time every month, with RTI submissions and pensions handled.
VAT & bookkeeping
Keep your books tidy and your VAT returns MTD-ready all year round.
Confirmation statement
Your annual confirmation statement checked and filed before the deadline.
Management accounts
Monthly or quarterly reports so you can see how the business is really doing.
More about Knowledge-Base Development Limited
About Knowledge-Base Development Limited
Knowledge-Base Development Limited is a UK private limited company based in London, registered at Companies House as company number 01726494 since 25 May 1983. Its listed activities include other information technology service activities, management consultancy activities other than financial management, research and experimental development on social sciences and humanities, performing arts. This page brings together its public record — directors, registered office, nature of business and filing history — in one easy place.
Knowledge-Base Development Limited filings and compliance
Every UK limited company must file annual accounts, a confirmation statement and a corporation tax return each year. Knowledge-Base Development Limited has 100 filings on record. Keeping on top of these deadlines avoids automatic penalties from Companies House and HMRC, which start at £150 for late accounts.
Looking for an accountant in London?
Businesses like Knowledge-Base Development Limited often use a local accountant for year-end accounts, corporation tax, VAT and payroll. Compare fixed-fee, regulated accountants near London and get free quotes in minutes.
This page shows public information from Companies House. Director of Knowledge-Base Development Limited?
Knowledge-Base Development Limited – frequently asked questions
What is the company number of Knowledge-Base Development Limited?
Knowledge-Base Development Limited is registered at Companies House under company number 01726494.
When was Knowledge-Base Development Limited incorporated?
Knowledge-Base Development Limited was incorporated on 25 May 1983 as a private limited company.
Who are the directors of Knowledge-Base Development Limited?
Current officers are Peter Hartley, Dr Millar (secretary), Mervyn Charles Hartley Millar (director) and Peter Hartley, Dr Millar (director).
What does Knowledge-Base Development Limited do?
The company's registered nature of business (SIC) is 62090 – Other information technology service activities; 70229 – Management consultancy activities other than financial management; 72200 – Research and experimental development on social sciences and humanities; 90010 – Performing arts.
Where is Knowledge-Base Development Limited registered?
The registered office address is 44a Bilton Towers, Great Cumberland Place, London, W1H 7LD.
Is Knowledge-Base Development Limited still trading?
According to its latest Companies House record the company status is active. Its most recent filing was confirmation statement made on 23 Apr 2026 with no updates on 5 May 2026.