Hi,
I have never bothered to do it myself but there is nothing to stop you making hundred of £££s, perhaps even as much as £1000 by just signing up with a number of online bookmakers and doing simple offset bets that will enable you to guarantee a profit against the free-bets that bookmakers offer new customers.
For example, I can see one well known bookie offering "Place a single bet of £5 or more and we’ll match it with a Free Bet up to £50".
I think the general idea is this:
Use the £50 to make the free bet on the bookie website, for example BACK £50 that a soccer team will win a match, lets say at odds of 2.0.
Then go to your Betfair account and LAY £25 that the team will lose, to make it simple lets suppose you get odds of 2.0
If the team loses, you win £25 on Betfair and loses nothing on the bookie site (the stake you lost was just the money they gave for a free bet).
If the team wins, you lose £25 money on Betfair, but you win £50 on the Bookie.
So either way you win £25 (less a little bit of Betfair commission, depending on the outcome).
The formula appears to be: Betfair Stake = (£Bonus x (Bookie odds - 1)) / Betfair Odds
The formula uses decimal odds and ignores the little bit of Betfair commission, but if you want to be picky and include the Betfair commission you could adjust the Betfair odds part of the formula.
Example 2,
Back £50 on bookie at 7
Odds to lay on Betfair are 7.5
Using the formula, Betfair Stake = £50 x (7 -1 ) / 7.5 = £40
If the team loses, you win £40 on Betfair and loses nothing on the bookie site (the stake you lost was just the money they gave for a free bet).
If the team wins, you lose £260 on Betfair, but you win £300 on the Bookie.
Win £40 any result!!!
Example 3,
Back £50 on the bookie at 2.5
Suppose the odds to lay it on Betfair are 3.0
Using the formula, Betfair stake = £50 x (2.5 -1 ) / 3 = £25
So you lay £25 on Betfair at 3.0
Win £25 any result.
So it would appear that you can win more the higher the odds that you do the bets at. The limiting factor is probably having enough funds in your Betfair account.
Check the terms carefully of each bookmaker's bonus offer, just to make sure there is nothing that can catch you out or make it hard to withdraw your free bet's winnings without delay.
The method isn't likely to be a way to make an income that helps you quit your job, but it could provide you with a nice little windfall if you can be bothered to open the accounts and do a little bit of leg work.
Cheers for now,
Gavin