As far as the Lucky for Life prizes goes it works the same like the jackpot draw games, the lump sum is the amount that is offered so for the $5 one its $1.9 million dollars. If weekly payments are chosen, the CALottery will take that $1.9 Million and purchase various saving bonds of varying lengths so that they can pay you for the 25 year period.
There are no state taxes in California (1 of 6 in the nation) for Gambling winnings, only Federal Tax. No Social Security or Medicare taxes.
Got this tax bracket data (percentage per dollar you have to pay within each bracket) from wikipedia.
So each year it is $130,000 at $2500 week for 52 weeks in a calendar year
Falls within the 28% tax bracket ($87,850 to $183,250), along with the 25% ($36250 to $87850), along with the 15% ($8925 to $36250) and the 10% (0 to $8925).
Each year the tax brackets increase with respect to inflation rates.
But if you take the lump sum at $1.9 million, it falls under the highest tax bracket
33% ($183250 to $398350), 35% ($398,350 to $400,000), and 39.6% for each dollar over $400,000
Thus not only do you get 65% of the potential amount, you will pay a chunk at the highest tax brackets ($1.5 million of the prize is taxed at 39.6%!!!)
Those that are great investors should take the lump sum, but other wise for the weekly sum, inflation over time will decrease what $2500 can buy every week. Also you must be in good health and stay alive for the 25 years to maximize the benefit. It can be inherited by another person should the winner deceases before the 25 year period, however the beneficiary does not pay the tax on per year basis, they pay the tax of the entire amount that is left to be paid out due to the IRS that very same year! Thus beneficiaries may have to arrange some other loans to pay off the tax first and then use some the weekly payments to pay off the debt.
Something to think about. That is the reason majority 90% of the Powerball winners chose the lump sum.