Jonas Computing (UK) Limited company overview
Jonas Computing (UK) Limited is a private limited company registered with company number 05301607. It was incorporated on 1 Dec 2004 and its current status is active.
The registered office is at Gladstone House, Hithercroft Road, Wallingford, OX10 9BT. The company has 6 active officers. It was previously called Ridgebook Limited.
Jonas Computing (UK) Limited upcoming deadlines
Year end accounts
Due 30 Sep 2027
Confirmation statement
Due 1 Feb 2027
Corporation tax payment
Due 1 Oct 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.
Jonas Computing (UK) Limited at a glance
21 years
Trading age
8,016 days since incorporation
6
Active officers
Jeffrey, Barry, Martin, Martin
127
Filings on record
Latest: 27 Oct 2026
100/100
Filing health score
Accounts and statement up to date
Directors of Jonas Computing (UK) Limited
Former officers
9 more officers are on the register. See all on Companies House
Nature of business (SIC codes)
62012
Business and domestic software development
Allowable expenses for Jonas Computing (UK) Limited
Based on Jonas Computing (UK) Limited's SIC code (62012), these are typical tax-deductible expenses for a software & it 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.
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 Jonas Computing (UK) Limited
How much tax does a software & it 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 Jonas Computing (UK) 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 Wallingford?
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 Jonas Computing (UK) 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
27 Oct 2026 · AP01
Appointment of Mr Ricardo Assuncao Moura as a director on 27 Oct 2026
26 Oct 2026 · AA
Group accounts made up to 31 Dec 2025
20 Oct 2026 · TM01
Termination of appointment of Kevin James Morgan as a director on 20 Oct 2026
20 Jan 2026 · CS01
Confirmation statement made on 18 Jan 2026 with updates
13 Nov 2025 · AA
Group accounts made up to 31 Dec 2024
5 Nov 2025 · CH01
Director's details changed for Mr Barry Alan Symons on 5 Nov 2025
31 Jul 2025 · TM01
Termination of appointment of Darrell Peter Boxall as a director on 31 Jul 2025
18 Jul 2025 · AP01
Appointment of Mr Richard Clancy as a director on 18 Jul 2025
25 Jun 2025 · AP01
Appointment of Mr Kevin James Morgan as a director on 25 Jun 2025
21 May 2025 · CH01
Director's details changed for Mr Martin John Goodwin on 21 May 2025
8 May 2025 · TM01
Termination of appointment of Richard Clancy as a director on 8 May 2025
19 Mar 2025 · CH01
Director's details changed for Mr Martin John Goodwin on 19 Mar 2025
22 Jan 2025 · CS01
Confirmation statement made on 18 Jan 2025 with updates
20 Nov 2024 · AP01
Appointment of Mr Martin John Goodwin as a director on 20 Nov 2024
8 Nov 2024 · AA
Group accounts made up to 31 Dec 2023
2 Feb 2024 · CS01
Confirmation statement made on 18 Jan 2024 with updates
23 Jan 2024 · MR04
Mortgage satisfy charge full
19 Sep 2023 · AA
Group accounts made up to 31 Dec 2022
28 Jun 2023 · AP03
Appointment of Mr Martin Goodwin as a secretary on 23 Jun 2023
28 Jun 2023 · TM02
Termination of appointment of Jemma Belghoul as a secretary on 23 Jun 2023
Showing the latest 20 of 127 filings. See the full history on Companies House
Accounting services for Jonas Computing (UK) Limited
From tax to payroll, find accountants who look after every part of Jonas Computing (UK) 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 Jonas Computing (UK) Limited
About Jonas Computing (UK) Limited
Jonas Computing (UK) Limited is a UK private limited company based in Wallingford, registered at Companies House as company number 05301607 since 1 Dec 2004. Its listed activities include business and domestic software development. This page brings together its public record — directors, registered office, nature of business and filing history — in one easy place.
Jonas Computing (UK) Limited filings and compliance
Every UK limited company must file annual accounts, a confirmation statement and a corporation tax return each year. Jonas Computing (UK) Limited has 127 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 Wallingford?
Businesses like Jonas Computing (UK) Limited often use a local accountant for year-end accounts, corporation tax, VAT and payroll. Compare fixed-fee, regulated accountants near Wallingford and get free quotes in minutes.
This page shows public information from Companies House. Director of Jonas Computing (UK) Limited?
Jonas Computing (UK) Limited – frequently asked questions
What is the company number of Jonas Computing (UK) Limited?
Jonas Computing (UK) Limited is registered at Companies House under company number 05301607.
When was Jonas Computing (UK) Limited incorporated?
Jonas Computing (UK) Limited was incorporated on 1 Dec 2004 as a private limited company.
Who are the directors of Jonas Computing (UK) Limited?
Current officers are Jeffrey Raymond Mackinnon (director), Barry Alan Symons (director), Martin Goodwin (secretary), Martin Goodwin (director), Richard Clancy (director) and Ricardo Assuncao Moura (director).
What does Jonas Computing (UK) Limited do?
The company's registered nature of business (SIC) is 62012 – Business and domestic software development.
Where is Jonas Computing (UK) Limited registered?
The registered office address is Gladstone House, Hithercroft Road, Wallingford, OX10 9BT.
Is Jonas Computing (UK) Limited still trading?
According to its latest Companies House record the company status is active. Its most recent filing was appointment of Mr Ricardo Assuncao Moura as a director on 27 Oct 2026 on 27 Oct 2026.