London, Oct 28 : Sarah Palin, the ex-governor of Alaska, was paid 1.25 million dollars to pen her memoir, official documents show.

Palin revealed the amount in a statement of her finances as Alaska governor before she tendered her resignation on July 27.

The sum was mentioned as a "retainer" received from publishers HarperCollins for her upcoming tome "Going Rogue: An American Life", reports the Telegraph.

However, the document does not say anything about the three months that she has been out of office and shows only a partial picture of the contract.

Palin is likely to make much more money as the book has already topped the popularity charts at Amazon. com and Barnes & Noble. com, much before its November 17 release.

It was earlier believed that Palin had been paid 11 million dollars for the book. (ANI)