3.24 Part 3 of the LTTA makes provision in relation to the calculation of tax, the bands and tax rates, and reliefs available (including the reliefs Targeted Anti-avoidance Rule).
[Nodyn 3] Mae hyn yn cynnwys pwysau dŵr a dynnwyd o wastraff a waredwyd, ar gyfradd sero, a phwysau’r holl wastraff sy’n destun unrhyw ryddhad Treth Gwarediadau Tirlenwi.