Okay, I know this is really stupid thing to have done but I didn't keep all my receipts for my AAT training over the last three years (simply because I didn't think I was going to go down the self employed route) which I was hoping to claim (assuming I can claim training expenses) against my bookkeeping business. Will my bank statements be enough evidence (i.e. bank statement shows "items like "Financial Training", "BPP professional training", "Osborne books") or will I have to forget about these? I managed to keep the last couple of receipts.