Future plans

Express general future plans with expect, hope, intend, or plan and an infinitive.

EXAMPLS:
We hope to start putting some money away.
I don't plan to be financially dependent for the rest of my life.

Use the perfect form of an infinitive to express that an action will or might take place before a specified time in the future.

EXAMPLES:
By this time next year, I plan to have saved up enough cash to buy a new car.
Her goal is to have paid off all her debt in five years.

Finished future actions

Use the future perfect to indicate an action that will be completed by a specified time in the future.

EXAMPLES:
By next year, I will have completed my studies, but I won't have gotten married.
How much will you have saved by next month?

Use the present perfect in an adverbial clause to distinguish between a completed future action and one that will follow it.

EXAMPLES:
Once I've completed my studies, I'll get married.
I'm going shopping when I've finished my report.

BE CAREFUL! Don't use the future perfect in the adverbial clause.
NOT. I'm going shopping when I'll have finished my report.