Why are my rakeback earnings not as high as I think they should be?
For most poker sites, the rakeback you can earn is not a direct percentage of your rake, but rather a percentage of the net revenue (MGR/NGR) the poker site has generated from your play. To get this number, first your rake is added up and then certain deductions are made before coming up with the final number. You then receive your percentage of the final net revenue number.
On Full Tilt and most other sites, deductions are made on deposits and various withdrawals, and thereby to preserve rakeback, we recommend that you not deposit and withdraw more than necessary.
Full Tilt deductions from your MGR include but are not limited to bonus dollars cleared, deposit fees, various withdrawal fees (paper checks cost $15), points spent in the FTP store ($5 against MGR for every 1,000 points spent), and tournament overlays. The last part is a bit confusing, so let us explain. If you enter a tournament that has a guarantee, but that guarantee is not reached by the buy ins in the event, each player's MGR is deducted for their piece of the extra money in the prize pool. For instance, if there is a $10,000 guarantee but only $9,000 in buy ins and there are 100 players in the event, each player's MGR is deducted $10. The reason for this is that Full Tilt is providing an extra $1,000 to the prize pool, divided amongst 100 players. The same rules apply for freerolls entered.
On most other sites, bonuses are deducted from your MGR. However, on several they are not. See individual poker site sign up pages on RakeBreak for information about how bonuses will affect your rakeback.