By 2020, most businesses, self-employed people and landlords will be required to keep track of their tax affairs digitally and update HMRC at least quarterly via their digital tax account. These changes will be introduced for some businesses from April 2018, and will be phased-in by 2020, giving businesses time to adapt.
These businesses will be required to use digital tools, such as software or apps, to keep records of their income and expenditure. HMRC will ensure that free apps and software products are available, but many businesses and their advisers will choose to use commercially-available tax software packages. Businesses will use software that compiles their tax data as part of their ordinary day-to-day activity, highlighting any possible errors (for instance, arithmetical mistakes or figures which look out of place) and offering prompts for information that might otherwise be overlooked. Once the software has compiled the relevant data, businesses or their agents will feed it directly into HMRC systems
via their computers or smartphones. Updating HMRC directly in this way will be secure, light-touch and far less burdensome than the tax returns of today..
source - www.gov.uk/government/
I will be ready for the Tax Digital Revolution and can help guide you through it.
More information will be available once the legislation has been finalised.