Child tax, working tax and inheritance?

mummyaj

I received a little over £7000 in May 2014 which all went into renting a house, getting furniture & baby items for our arrival in the September - none went into savings and therefore never accrued interest in my account nor do we have any of it left (it was in the solicitors account for 3 years prior to this and accrued around £200 in interest). At the time we claimed no benefits at all so it wasn't an issue. However I've received our tax credits renewal pack yesterday and I'm completely clueless on whether or not I have to declare the actual inheritance? My understanding from the forms is it would just be any interest gained on it? I'm not sure if my thinking is right, or if I don't declare anything because interest was not accrued in my account? I have rung tax credits to query but as usual had no luck getting through! Does anyone have any idea??