Fis Medi diwethaf, cadarnhaodd yr Ysgrifennydd Llywodraeth Leol, Mark Drakeford, y byddai Llywodraeth Cymru yn parhau i amddiffyn cartrefi incwm isel ac agored i niwed drwy gynnal hawliadau llawn i Gynllun Gostyngiadau'r Dreth Gyngor hyd at ddiwedd 2017-18 o leiaf.
Last September, Local Government Secretary Mark Drakeford confirmed the Welsh Government would continue to protect vulnerable and low income households by maintaining full entitlements to the Council Tax Reduction Scheme until at least the end of 2017-18.