Xavi insisted age would not be a barrier when Barcelona rebuild in the close season as the Catalan giants continue to be linked with 33-year-old Robert Lewandowski.
The Barcelona head coach said he had not concluded discussions with club power-brokers over transfer plans, and had not spoken to the team's current players about plans.
Bayern Munich frontman Lewandowski is reportedly keen on joining Barcelona, while Xavi did not rule out an exit for Frenkie de Jong, who has been linked with Manchester United.
Uncertainty lingers over whether Barcelona will have much financial clout in the transfer window, as they attempt to come through an economic crisis that has hit Camp Nou hard.
It may be that the likes of De Jong – in what should be their prime years, at the top of their market value – have to be sacrificed in order to bring in the quick-fix solution that a player such as veteran goal-getter Lewandowski might provide.
Xavi told a news conference: "The circumstances of the club are what rule. I have an important part in decision-making. From here on, we depend on the economic situation.
"In a few days we should know where we are in order to plan for next season. The economic situation keeps us at bay, it is obvious that marks the present and the future of the club."
Asked about Dutch midfielder De Jong, Xavi said: "For me, he is a very important player. He has been a starter almost always, except when he has been rotated.
"He is a fundamental footballer, but then there is the financial situation of the club. He is a player that I like very much, but we are going to see how the situation is."
Xavi: "I have it planned out in my head, but it depends on our economic situation" pic.twitter.com/SGyCQWzKqS— FC Barcelona (@FCBarcelona) May 14, 2022
Xavi said Barcelona have "untouchables" in their ranks who must not be transferred, and although he did not name such players, the growing number of youngsters coming through the ranks such as Ansu Fati, Pedri and Gavi likely fall into that category.
Lewandowski, who has scored 49 goals in 45 games for Bayern this season, could be the player that allows Barcelona to bridge the gap to Real Madrid next season. Barcelona have moved far closer to Madrid's standards since Xavi was appointed in November, after a dismal start to the campaign under Ronald Koeman, but Los Blancos have carried off the LaLiga title with a comfortable cushion.
In light of the Lewandowski reports, Xavi was asked whether he could sign veteran players and was adamant he would, contingent on whether such stars kept themselves in good shape.
"I signed Dani Alves at 38," Xavi said. "It's not age, it's performance. Players take care of themselves so much and every year they are more professional.
"Ibrahimovic, Modric, Dani Alves, they all have a very high performance at important clubs. Cristiano [Ronaldo] and [Lionel] Messi too. Age is not a priority. If it improves us, that's the important thing."
Xavi declined to say whether Barcelona would be targeting a goalscorer, declaring it was "not the time to talk about this".
However, he said: "The club knows what we need to be competitive. The board will demand titles from us, and we have to improve."
Xavi, whose side face Getafe in LaLiga on Sunday, explained: "We're talking a lot about players for next year, but we still haven't met the goal of finishing second. There are two games left to finish with a good feeling. Then we'll plan and decide."