It's a little way off, but many small landlords may well find the Governments plan to 'make tax digital' a bit of a surprise challenge. If your rental income is greater than £10k per year, then from April 2019 you'll need to do quarterly reporting to HMRC on a digital platform!
It's been over 10 years since I sold my small rental portfolio and I remember the annual scramble to get all my tax information together. Hopefully there will be an app or platform that'll be up to the challenge.
provide summary tax data to HMRC quarterly, using digital tools. The summary tax data will be automatically generated for the business from the electronic records. For VAT, these quarterly updates will effectively replace the VAT return. For Income Tax and CT, these updates will cumulatively build an in-year picture of the business’ tax position for them