Soldado, 27, scored 17 Liga goals last season and has hit double figures in each of the last four campaigns since he left Real Madrid for Getafe in 2008.
Spurs are eager to add firepower to a midfield-heavy squad, but with the player contracted until 2017, Los Che are not letting go of their prized asset.
"I know about Tottenham's interest," he told reporters at a club press conference. "My representatives told me about it - they made an offer but it was rejected because, when I signed a new deal in the close-season, it was made very clear that I intend to honour it.
"My loyalty to Valencia is total - I want to play here and there are many things to achieve with this great team."
Some Spanish newspapers estimated Spurs' bid as in the 30 million euro range, which would hint that Valencia's need for cash has been overestimated.
And Soldado is certain that more success beckons for the side which finished third last season.
"We are confident that we are well prepared to compete with our rivals and to be a serious force, more so than last year," he added.