Yn ystod y flwyddyn, rheolodd ACC y lefelau uchaf erioed o dreth a phrosesodd ei nifer mwyaf o ffurflenni treth hyd yma, sef cyfanswm o fwy na 68,800. Cafodd cyfanswm o 98.4% o'r ffurflenni treth eu ffeilio'n brydlon, gyda bron i 99% o'r trafodiadau wedi'u ffeilio'n ddigidol.
During the year, the WRA managed record levels of tax and processed its highest number of tax returns to date, totalling more than 68,800. A total of 98.4% of tax returns were filed on time, with almost 99% of transactions filed digitally.