The self assessment pre-population APIs (Application Program Interfaces) moved into public beta in March 2018. This service pre-populates taxpayers’ self assessments with information on individual employments, income, tax deductions, benefits, national insurance and marriage allowance.
As reported in its Digital, HMRC has already compiled a list of improvements it would like to make in the next version (subject to funding). Most providers of self assessment filing software are likely to incorporate these APIs – members should contact their software provider if further information is needed.
The private beta version of this service was well used during the self assessment peak by those who had access, though there were some capacity issues.
Issues reported by members have been:
Please comment below on your experiences of using this functionality.