Sources and methodology
Sources, dates and the bits in between.
We want you to know where an estimate came from. Official guidance wins when it differs from a toolkit result.
Tax and rates
- HMRC Income Tax rates and Personal Allowances
- HMRC Capital Gains Tax rates and allowances
- HMRC Stamp Duty Land Tax rates
- HMRC Property Income Manual
Property and compliance
- GOV.UK How to rent guide
- GOV.UK Deposit protection schemes and deadlines
- GOV.UK Right to Rent checks
- GOV.UK Energy Performance Certificates