Joel Lister

Why he built Radar

Radar started because he was running technical work and sales at the same time: R&D proof points in one place, an ERP full of assigned activities, a CRM full of deals, an inbox where customers waited, and a calendar that filled up with everything except the important work. At home, the same weeks were the ones where the MOT and the school form slipped. More about why Radar exists.

How the guides here are made

Written with AI assistance from official sources, each linked with the date it was read, and checked by Joel Lister against those sources before it was published. If something is wrong or out of date, email him and it is corrected.

What he has written here

• Radar for Odoo Custom and Odoo.sh
• What is calendar runway?
• Self Assessment 2025–26: every date to 31 January 2027
• Secondary school places close 31 October: what to have ready
• Making Tax Digital: your 7 November update, and what follows
• UK life-admin checklist 2026–27: 43 household dates
• Moving house checklist UK: who to tell and when, printable
• Change the address on your driving licence (and log book)
• TV Licence change of address when you move home
• Council tax when you move house: who to tell
• Passport renewal UK: the cost, children’s passports, timing
• Self Assessment tax return: deadlines, penalties, filing
• How to test a smoke alarm, and why it keeps beeping
• Car insurance renewal: when it is due, and what to check
• Boiler service: how often, and the gas safety check
• UK tax year dates: when the tax year starts and ends
• GHIC card: how to apply, renew, and how long it lasts
• Car maintenance checklist: weekly, winter and yearly
• Holiday checklist: what to check before you go abroad
• How to write an invoice: what a UK invoice must include
• Energy price cap: the current level and when it changes
• New starter checklist for employers: what to do, and when
• Driving licence renewal: every 10 years, and at 70
• SORN: how to declare your car off the road
• Change of name checklist: deed poll, passport, licence
• P45 and P60: what they are and how to get one
• Making Tax Digital for landlords and sole traders
• Tax-Free Childcare: how it works and who is eligible
• VAT registration: the threshold and the deadline
• How to set up a limited company, and how to close one
• Register a birth: the 42-day deadline and what to take
• How often should you…? The UK home, health and car schedule
• Landlord certificates and dates in England