What it means
いたします is the polite humble form of いたす, which is the humble form of する. It is used when the speaker respectfully lowers their own action, especially in business, customer service, announcements, and other formal situations. With a noun plus を, it means that the speaker will humbly perform the action represented by the noun. Although いたす has a plain grammatical form, it remains formal and humble rather than becoming ordinary familiar speech; familiar speech normally uses する instead.
Usage note
いたします is not a natural familiar counterpart of する. Use する in genuinely casual or ordinary plain speech, and reserve いたします for respectful, formal situations. It is also common in set expressions such as よろしくお願いいたします, but that expression should be learned separately as a fixed polite phrase.
Example sentences
これから、商品の説明をいたします。
I will now explain the product.
ただいま、会場の案内をいたします。
I will now provide guidance about the venue.
お預かりした書類の確認をいたします。
I will check the documents you entrusted to me.
来週の会議で、新しい計画の報告をいたします。
At next week's meeting, I will humbly report on the new plan.