Since 2025, the IIC (yeah an acronym – we know…) team has been on a mission to bring effortless, simple finance calculator tools to the masses in a modern way. No more clunky, poorly-designed websites built in the 90’s – we were still kids (!) – no more over bloated websites that claim one thing and do another. Just your mobile phone with one secure site that handles it all. Welcome to your new place to calculate your savings and investments.
Whether you’re deciding to start an ISA or shopping around for the best ISA deals, ISA Interest Calculator makes every process seamless. With just your phone, you can calculate ISA’s, explore deals, and decide the best place for your hard-earned savings —welcome to a new era of financial freedom.
We’re passionate about simplifying ISAs & ISA calculations for the everyday investor & saver. Since 2025, ISA Interest Calculator has been on a mission to revolutionise simple calculator tools with a more consistent and engaging approach with secure, fast, and user-friendly solutions.
We envision a world where you don't have to wade through a mass of financial affiliates and providers to find a simple calculation and don't have to scour the internet for the best ISA deals, we send all ISA information to our subscribers on a monthly basis, simplifying the investing process for everyone. By continuously innovating, IIC aims to lead the way in transforming the savings process into an intuitive, universally accessible experience.
Founder & CEO
Chief Marketing Officer
Chief Technology Officer
James is the founder and director of ISA Interest Calculator, the UK’s leading ISA calculator site for UK savers and investors. Having spent nearly a decade building proprietary tools in the finance and media space, with several of the largest financial media brands, he now runs ISA Interest Caculator alongside a portfolio of other UK-specific finance brands.
Arin is one of the UK’s leading finance and savings experts, having built her own media business specialising in personal finance and savings in the UK. She now helps run ISA Interest Calculator’s social media as well as outreach campaigns and marketing She completed her finance pHD in 2014 from Stanford and now lives with her two kids in Bristol.
John is our CTO & senior writer for ISA Interest Calculator, he has operated as a financial advisor, personal finance blogger and works alongside our team in Edinburgh across a variety of brands and titles. He completed his DIPFA in 2013 and previously worked in the City of London for 10+ years in wealth management and trading. He has a deep understanding and history of ISAs and their benefits.
Located in the heart of Edinburgh, our headquarters is where innovation meets energy. It’s here that our talented team designs, builds, and refines the experiences across our portfolio of brands. Stop by our office to meet the people behind the brands and discover how we’re shaping the future of savings and investments, one feature at a time.
Have a question or just want to get in touch? Feel free to reach out to us for any reason — we’re here to help!
