Child Tax Credit is available for families with children whether or not you are in work. The amount you receive is based on your annual income and will decrease as your income rises. This may be used to cover childcare costs but is not specifically a payment for childcare.
Working Tax Credit supports working people (employed or self-employed) on low incomes. You must be working 16 hours as a single person or 24 hours between you if you are part of a couple, with one of you working a minimum of 16 hours. The amount you receive is based on your annual income and will decrease as your income rises.
The Childcare Element of the Working Tax Credit can help towards the costs of registered or approved childcare if you’re eligible. The amount you receive is dependent on the household income and your childcare costs. You may be better off using childcare vouchers if your income is high.
If you’re a new claimant you’re unlikely to be able to apply for tax credits and will need to apply for Universal Credit instead.