Awgrymodd y dadansoddiad cychwynnol y gallai’r cynnydd mewn Yswiriant Gwladol a’r cynnydd cysylltiedig mewn gwariant ar iechyd a gofal cymdeithasol yn Lloegr olygu cyllid ychwanegol i Lywodraeth Cymru, o tua £600m y flwyddyn. Fodd bynnag, ni fyddwn ond yn gwybod sut y mae hynny'n cyd-fynd â chynlluniau gwariant cyffredinol Llywodraeth y DU a'r effaith wirioneddol ar ein cyllideb pan gyhoeddir canlyniad yr Adolygiad o Wariant ddiwedd mis Hydref. Bydd hefyd angen inni ddeall y goblygiadau ar gyfer gweithwyr y sector cyhoeddus sy’n talu Yswiriant Gwladol
Initial analysis suggests that the National Insurance increase and the associated increase in spending on health and social care in England could mean additional funding for the Welsh Government of around £600m a year.  However, we will only know how that fits into the overall UK Government spending plans and the actual impact on our budget when the Spending Review outcome is published at the end of October.  We will also need to understand the implications for public sector employers who pay National Insurance.