This depends on the type of tree and the propagation method used to produce the tree. Below is general information regarding the time it takes for your tree to produce fruit.
GRAFTED TREES
They typically produce fruit in 1-2 years. They are copies of matured trees.
AIR LAYERED TREES
They typically produce fruit in 1-2 years. They are copies of matured trees.
TREES PROPAGATED BY CUTTINGS
They typically produce fruit in 1-2 years. They are copies of matured trees
TREES PROPAGATED BY SEEDLINGS
They typically produce fruit in 6-7 years. There are many exceptions to this rule. For example: Papaya: 1-2 years, Sugar Apple: 1-2 years, Custard Apple: 1-2 years, Soursop: 1-2 years