Did you know that you could be eligible for Child Tax Credit after separating from your spouse or partner, even if you were not eligible whilst you were together? If you have at least one child under sixteen (or under twenty and in full time education/training), you may be entitled to the credit. You do not need to be working. Any maintenance payments that you receive from your spouse or partner are not treated as income for calculating the tax credits. This means that people who are receiving a fairly high level of maintenance may still be eligible for the credits which can really help to boost the family income after a separation.
If you work for more than sixteen hours per week, you may be entitled to Working Tax Credit as well as Child Tax Credit.
There are no set limits for eligibility because they depend on your family circumstances. If there is any chance that you may be eligible, have a look at www.gov.uk/tax-credits-calculator