SHARING OPTIONS: In April 2023, unincorporated businesses will need to submit accounting records on a quarterly basis for income tax calculations. \ Ramona Farrelly New rules which will require income tax records to be filled in online every three months could actually be of benefit to a farm business, a local accountant has suggested. According to Claire McCallion, senior manager at PKF-FPM Accountants, farmers should not be afraid of the next steps in the Making Tax Digital (MTD) process. The first MTD requirement for most NI farmers was in April 2019 when VAT-registered businesses with an annual turnover above £85,000 had to start keeping digital VAT records.