Also remember that vat turnover is based on a rolling twelve month period. When you come to the end of your first twelve month period, you then add on month 13's turnover and deduct month 1's turnover; then add on month 14's turnover and deduct month 2's turnover, and so on through the second year; if you then go through the £61,000 turnover limit, you need to register for vat.
Very often small businesses fail to grasp this aspect of the vat registration process. In the early months of your startup, your turnover can be quite low, but by month 13 & 14 and beyond, things could be quite different.
David