its the income support thats a problem. Lets say the benefits office think you get 40 pounds a week, from tax credit and family allowance, so they make you up to the minimum standard with income support, at say, 20 per week. Actually you are getting 40 pounds a week+ whatever the dad gives you, so in effect, you dont need i/s to make you up to the minimum amount. because you havent told them about the extra incme, and you are probably there already .they want to recoup benefits paid from the father of the baby, so will chase him for them. If he says "well ive paid for 1/2 of this, and 1/2 of that," they will chase you for the income support back, as you are committing benefits fraud by not declaring the income you get from the father