Present Tense

Only imperfective verbs are used in the present tense: perfective verbs are never used to refer to the present. The present tense-form of the perfective verbs refer to the future. Compare:

Imperfective Perfective
Делать
Я делаю – Present tense
(I do; I’m doing)
Сделать
Я сделаю – Future tense
(I’ll do)
Опаздывать
Я опаздываю – Present tense
(I’m behind schedule)
Опоздать
Я опоздаю – Future tense
(I’ll be late)

Imperfective verbs, however, can be used to refer to the future similar to how Present Simple or Present Continuous are used to represent a plan for the future:

Завтра мы едем (imp.) в Москву. – We are going to Moscow tomorrow.

Learn more:
What are perfective and imperfective verbs?
Perfective/imperfective pairs
Past tense
Future tense
Infinitives
Imperative