Cyfrifwch faint o dreth sy'n ddyledus ar log eich cynilion, gan ystyried eich Lwfans Cynilo Personol a'r gyfradd gychwynnol.
Rhowch eich incwm nad yw'n gynilion
Eich cyflog, pensiwn, neu incwm hunangyflogaeth cyn llog cynilion. Mae hyn yn pennu eich band treth a pha lwfansau sy'n berthnasol.
Rhowch eich llog cynilion gros
Cyfanswm y llog a dderbyniwyd cyn unrhyw dreth o'ch holl gyfrifon banc, cyfrifon cynilo, a bondiau (nid ISAs).
Gweler eich sefyllfa treth cynilion
Mae'r gyfrifiannell yn dangos eich Lwfans Cynilo Personol, band cyfradd gychwynnol (os yw'n berthnasol), ac unrhyw dreth sy'n ddyledus.
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Disclaimer: All results are estimates for guidance only and do not constitute financial, tax or legal advice. Always consult a qualified professional.
