Neidio i’r cynnwys Neidio i’r troedyn

Income tax - how much should you pay

Income tax is a tax paid on your income. These pages show you how you can work out whether you need to pay income tax, and how it is collected.

You can also find out about allowances that may be set against your income and who is eligible for these.

Treth incwm

Information about income tax and how it is calculated and collected.

Cyfraddau treth incwm

Covers the percentage rates of income tax for the current year and the last six years and explains how to calculate the tax.

Symiau a lwfansau treth incwm

Covers income tax allowances for personal, married couples and blind person’s allowances and gives amounts for current year and previous six years.