Interest from authorised unit trust (AUT) or an open-ended investment company (OEIC)?
Although Box 3.1 is described as ‘Net interest paid by banks or building societies etc’ as well as bank or building society interest, this box should include net interest received from other deposit takers and net interest paid by authorised unit trusts and OEICs. The tax deducted from this interest should be reported in box 3.2 with the gross amount of interest entered into box 3.3. (Please note dividends from unit trusts should be reported in box 3.6).