Betfair:1. Commission on Winnings (5% less your discount)
2. Premium Charge at either 20%, 40%, 50% or 60%
3. Data Charges
4. Transaction Charges
Spread Betting:1. The Opening Spread
2. The Closing Spread
3. Roll Over Costs (**example needed**)
4.
Futures:1. "Commission" on Trades (comprises commission + exchange fees. Example (Mirus Futures current commissions per contract/trade):
http://www.mirusfutures.com/sites/default/files/pdf/Mirus_Futures_Product_Info.pdf)
2. Capital Gains Tax (18% or 28% yearly allowance of £10,100)
3. Account Deposit/Withdrawal Costs (£/$ exchange rate/commission)
4.
Shares:1. Dealing Costs (For example HSBC Charge if done online £12.95 per deal on both the buy and sell so £25.90 to complete a trade irrespective of the number of shares. They charge differently if traded on the phone and for shares that are quoted in € and $)
2. Bid/Ask Spread
3. Stamp Duty (If the purchase is valued at or under £1,000 no SD is payable, over £1,000 it is 0.5% which is rounded to the nearest £5.)
4. Capital Gains Tax (18% or 28% yearly allowance of £10,100) (If trading inside an ISA there is no CGT)
Contracts For Difference (CFDs):1. Commission on Trades (For example 0.05% of trade value, with a minimum of £3)
2. Capital Gains Tax (18% or 28% yearly allowance of £10,100)
3. Cost of leveraged financing (This is similar to 3 in Spreadbetting, Roll Over Costs. Since you only need to have a margin of the total value in your account, you pay interest on the money you've effectively borrowed)
Exchange Traded Funds (ETFs):1. Dealing Costs
2. Bid/Ask Spread
3. Management Fee (typically around 0.3-0.5% which is deducted pro-rata from the price on a daily basis)
4. Capital Gains Tax (18% or 28% yearly allowance of £10,100)
Removed 5 and 6 on Shares as suggested.I've added trading CFDs as I think it's a realistic alternative to shares since there is no stamp duty. I also believe there's only stamp duty on UK shares, and not on US shares, say. (Please correct me if I'm wrong though). CFDs are typically only sold on UK shares. At the moment I'm not sure what the spreads are like on CFDs, but I'd expect much more hospitable than spreadbetting, even after commission/costs. You'll pay capital gains tax on CFDs, but that's not necessarily and issue since financial markets are quite scalable.
Like others in this forum I'm actively looking to move into financial trading. Initially I'm looking at UK CFDs or US stocks. For a decent brokerage that a lot of professionals use take a look at Interactive Brokers (
http://www.interactivebrokers.com). I haven't opened an account with them yet, but that's my plan once I'm up to speed.