Time limit for income escaping assessment: nine months or twelve months from end of year after section 148 notice, as applicable. Time limit for assessment under section 147 is governed by section 153: if a section 148 notice was served before 01-04-2019 the assessment period is nine months from the end of that financial year; if the notice was served on or after 01-04-2019 the period is twelve months from the end of the relevant financial year. A reference to the Transfer Pricing Officer extends the assessment period by twelve months.