The fee is usually £495, but you can qualify for a discount if you are on a certain mix of benefits. The best thing to do would be to check with your local county court to see if you qualify for a discount.
Just a quick update to the court fees if you need to petition for bankruptcy at the High Court in Londion the court fee is £162 rather than £150 just to make things simple.
The other part of the fee - Official receivers deposit - remains the same at £345.
Paul Johns Assisted Bankruptcy Specialists Reviva UK www.revivauk.com