More than 250 practices moved from IRIS last year, gaining powerful cloud tools and reducing annual costs by up to 40%, according to customers.
More than 250 practices moved from IRIS last year, gaining powerful cloud tools and reducing annual costs by up to 40%, according to customers.
Users who made the switch have reported being able to file tax returns 40% faster.
Over 250 accounting firms successfully switched from IRIS Desktop to TaxCalc last year.
UK-based support team delivering a world-class net promoter score of 81 for support.
Ditch the hassle and get started with TaxCalc in no time.
Discover how much you can save by switching to TaxCalc.
Our team will guide you through a seamless 2-8 week migration process.
Enjoy enhanced features, cost savings, and dedicated support from day one.

For 20 years, we've been building software that accountants actually want to use – reliable, intuitive, and efficient. Our award-winning solutions now support thousands of practices, from small firms to large partnerships.
Our growth from five people in 2005 to over 100 today hasn't changed our core focus: creating accounting software that respects your time and helps your practice grow.
Platform
Modern Desktop + Cloud
Desktop Software Only
Contract terms
Fixed Terms, High Renewals
User experience
Simple, Award-Winning
Fixed Terms, High Renewals
Customer support
UK team 5-Star Service
Offshore, Inconsistent
NPS
81
Undisclosed
Looking for clarity on what TaxCalc offers? Here's what makes us the smart choice for accountants.
Reduce your costs compared to IRIS while keeping all the features and support you need for your practice.
Complete your switch in 2-8 weeks with expert guidance, with support throughout migration to eliminate downtime and errors.
Whether you're a sole practitioner or a 50-person firm, our modular system grows with you – no wasted costs.
Get tax and compliance updates before anyone else – we're consistently first with UK legislative changes.
UK-based support team ready to help when you need them. No offshore calls, just exemplary assistance.
We know your challenges firsthand – that's why TaxCalc focuses on what really matters to your practice.
“We've been using TaxCalc for 14 years. In terms of features that stand out, it's the ease of use and intuitive user interface. It's very easy to pick up.”
Managing Director, Nuvo Accountancy
“With the Communications Centre and eSign features, client interactions have become quicker and more professional.”
COO and Co‑founder, OnTheGo Accountants
“The HMRC authority request is great – a simple but hugely helpful tool. Tasks that used to take ages are now much quicker.”
Managing Partner, Steve Pye & Co
“Features like Jobs & Tasks have helped us stay on top of deadlines and manage work more effectively.”
Office Manager, Newman Morris
“Just do it. Take the plunge! You definitely won’t regret leaving your old software behind.”
Director, Deans Accountants
“I can't think of a better balance of software quality and price on the market that I've used.”
Director of Operations, LKA Chartered Accountants
“I’m going to say we’re 20% quicker with TaxCalc, probably even 30% quicker.”
Partner, Artema Accountants
“The most obvious impact TaxCalc has had on our practice is the workflow module… we previously had to rely on spreadsheets.”
Director, Chapman Worth
“The data migration – transferring the client lists with addresses, directors and all the other details - was slick.”
Director, Cadre Advisory Services
“It was a complete no-brainer to use TaxCalc. We love the error checking, it’s just so helpful.”
Founder, Eclipse Accountancy
“TaxCalc has significantly improved our workflow and overall efficiency, thanks to the intuitive interface and streamlined processes.”
Director & Owner, Fortuna Accounts
“TaxCalc’s compliance checks are thorough in ensuring you follow a process that is very HMRC-compliant. It's very careful to follow correct HMRC guidance ensure you've completed everything. So, it gives us confidence in our job as well.”
Principal and Director, Total Books and RFX Virtual Finance
More info on TaxCalc.
More UK firms switch to TaxCalc every month. Find out why our software and support come so highly recommended.