The Dutch defender arrived at the Liberty Stadium on a one-year contract as cover for the injured Neil Taylor but admits he doesn't expect to stay beyond the end of the season
The Dutchman signed for the Swans on a one-year contract after first-choice left-back Neil Taylor suffered an ankle injury which ruled him out for the season in September.
Michael Laudrup recently described Tiendalli as an "important" part of his side's success this season but, with no sign of a further contract offer, the defender expects to depart the Liberty Stadium this summer.
"I don't think I will be here next year," he told South Wales Evening Post. "I have only a one-year contract and I haven't heard anything from the club - the facts are there.
"I hear nothing from them when I only have a year contract, so that's why I think I won't be here next year."
Tiendalli also claimed that he won't approach the club regarding a new deal, insisting he will simply continue to concentrate on playing well when given the opportunity.
"I don't think it's about my agent going to the club," he added. "If the club want me they have to say they need me next year, not that I have to get my agent to call them.
"I am just concentrating on my games, on trying to perform well. I know what I can do and I think I've shown it in the games I've played.
"The club have said nothing. I have a one-year contract and the facts are I am not staying here next year unless anything changes."