Start here
You only need a few guides to begin.
Choose your situation. Start with the essentials, then open the extra guides only when they fit.
New limited company owner
Start with access and records, payroll, personal/company money and dividends. VAT and pensions are additional routes when relevant.
Sole trader or freelancer
Get the records and first personal tax bill clear first. Check the year before using any rates or deadlines.
Landlord
Start with rental profit and your personal return. Use the joint-ownership guide only when relevant; holiday lets and overseas residence have their own routes.
Construction business
Keep CIS, VAT and worker status as three separate checks. Send the job and worker facts before choosing a treatment.
Working or trading internationally
Choose by activity: travelling, overseas staff, services, physical goods, digital sales or rent. The guide is a starting point, not destination-country approval.
Choose the right tax year.
Preparing a 2025/26 return
The 2026/27 topic guides are not an earlier-year library. Ask SBX for the correct calculations and edition. The mileage spreadsheet has an explicit 2025/26 setting; the other tools state their own scope.
Ask about an earlier yearPlanning for 2026/27
The topic guides are labelled by edition. Read the scope and review date inside each one. Your company’s accounting period and the personal tax year are not necessarily the same.
Browse 2026/27 guides