Roedd Archwilydd Cyffredinol Cymru o'r farn bod holl gyfrifon y GIG ar gyfer 2017-18 yn 'gywir a theg'. Mae chwech o'r deg corff wedi cydymffurfio â'r ddyletswydd i fantoli'r gyllideb dros gyfnod statudol drwy weithio o fewn eu cyllidebau yn ystod y cyfnod asesu tair blynedd o fis Ebrill 2015 i fis Mawrth 2018. Yn ogystal â'r alldro yr adroddwyd arno, cynhyrchwyd £2.4 miliwn a £3 miliwn o warged, yn eu trefn, gan Fwrdd Iechyd Prifysgol Aneurin Bevan a Bwrdd Iechyd Prifysgol Cwm Taf. Mae Llywodraeth Cymru wedi cytuno i ddwyn y symiau hyn ymlaen. Cafodd y symiau hyn eu tynnu o ddyraniadau'r byrddau ar gyfer 2017-18, a byddant yn cael eu rhoi iddynt unwaith eto yn 2018-19.
All NHS accounts in 2017-18 received a clean ‘true and fair’ audit opinion from the Auditor General for Wales. Six out of ten organisations have complied with the statutory break even duty by operating within their budgets over the three-year period of assessment from April 2015 to March 2018. In addition to their reported outturns, Aneurin Bevan and Cwm Taf generated surpluses during 2017-18 of £2.4 million and £3 million respectively which Welsh Government has agreed to carry forward. These amounts were removed from the boards’ 2017-18 allocations, and will be re-provided to them in 2018-19.