About Us

Welcome to ContractorCalculator, the UK’s leading website for contractors and freelancers.

We’ve been online and independent since 1999, when we launched ir35calc.co.uk to help contractors count the cost of the then newly released IR35 tax legislation.

Still owned by founder and former IT contractor Dave Chaplin, the site has grown dramatically since then to become the expert guide to contracting. Dave is still actively involved in its management, supported by a dedicated team of contractors and freelancers.

Our ABC-audited monthly audience of regular readers (our last monthly audit was over 130,000 unique visitors) is made up of contractors, freelancers, interims and consultants from the IT, telecoms, engineering, oil, gas and energy, business, marketing and medical sectors. They keep coming back as we offer:

  • A comprehensive range of essential online financial, salary and tax calculators
  • A high quality news service from a professional editorial team
  • Expert commentary and analysis from industry and sector leaders
  • More than 1,000 online articles and contractor guides suitable for beginners and veterans
  • Access to leading contractor services.

As a result of this comprehensive resource for those new to contracting and experienced old-hands, we’re proud to call ourselves The Expert Guide to Contracting, and have even published the definitive guide to contracting – The Contractors’ Handbook: the expert guide for UK contractors and freelancers.

And how do we know we have so many loyal contractor and freelance followers? Because, uniquely for a contractor and freelance website, we invest in regular independent audits of our site visitor numbers for ABC certification – the online marketing industry’s ‘gold standard’ for measuring website traffic statistics.

We’ve had eight audits over the last four years, each confirming over 100,000 unique visitors per month. This means we can offer advertisers ‘Power advertising’ – an integrated online marketing solution that allows our advertisers to accurately target their advertising spend in one place, without having to spread their budget thinly over multiple sites.

More importantly, if you advertise with ContractorCalculator, you know you are getting what you pay for, because we are the only contractor and freelancer website that is prepared to back up our readership claims with independent verification by ABC. You can invest in our marketing solutions with confidence and trust.

Enjoy browsing through the features of our website and if you want to know more about the online marketing solutions we offer, then please request a media pack.

Company Details

Site owned and run by:
Byte-Vision Ltd
112C Roman Road
Basingstoke
Hampshire
RG23 8HE

Company number: 3362956
Data Protection number: Z9876607







ContractorCalculator, the UK authority on contracting, has regular independent verifications by ABC of over 130,000 unique visitors per month. And as the only contractor website with an ongoing commitment to these industry standard audits you can invest in our marketing solutions with confidence and trust.


  
  

Contractor solutions

Contractors Handbook AM Limited ContractorCalculator Marketplace InniAccounts AWR Whitepaper IR35 Test
  
Contractor accountants - pricing checklist Contract jobs board
  

Contractor solutions

Choice Premier Pay+

Take home up to 85% of your pay. IR35 solution.

Contractors Handbook

The expert guide for UK contractors and freelancers

Bedouin Group

No more IR35. Retain up to 85% of your earnings.

Parasol Group

Umbrella or Limited? Guidance on best options, and take home pay.

InTouch Accounting

Person to person contractor accountant. £85 pcm. Free IR35 review

NA D J Colom Accountants Bedouin Group Contractor Financials NewsNow
  
Contractors Handbook

  

The UK's leading contractor site. Independently audited traffic (ABC) – 133,141 monthly unique visitors.