Structure
する → いたす
お + Verb[stem]+ いたす
ご(1) + [する] Verb + いたす
(1) お, limited to [する]Verbs like: 電話する、勉強する、散歩する
Details
Polite
About いたす
いたす, or 致す as it is often written, is a humble speech う-Verb, which refers to the actions of the speaker (or people within the speakers inner circle, like their company). Similarly to お〜する, いたす means 'to do'.
In the case of する verbs themselves, simply replace する with いたす. For other verbs, add いたす to the ます stem of the verb, while attaching お, or ご to the beginning (depending on whether it is a word of Japanese or Chinese origin).
Caution
Words that include the kanji 拝 'to worship', or 'to revere', do not usually require お, ご, or いたす. This is due to the word itself being 'respectful'.
Fun Fact
いたす is considered to be slightly more humble than お〜する, which means that it will be heard more frequently in advertisements, or being used by company employees.
Related
Vocab Coverage
All Bunpro Vocab that appears on this item.
Examples
--:--
ご案内いたします。
I will guide you.
拝借してもよろしいですか。
May I humbly borrow it?
駅の前でお待ちいたします。
I will wait in front of the station.
品物は明日お送りいたします。
We will send the merchandise tomorrow.
お荷物をお持ちいたしましょうか?
Shall I take your baggage?
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Self-Study Sentences
Online
~いたす
E-Japanese
Set Expressions
Tae Kim
いたす
JapaneseQuizzes
Offline
[DBJG] A Dictionary of Basic Japanese Grammar
Page 39
Genki II 1st Edition
Page 158 & 159
Genki II 2nd Edition
Page 188
Tae Kim's Japanese Grammar Guide
Page 225
みんなの日本語 II
Page 156 [CH 50]
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いたす – Grammar Discussion
Most Recent Replies (49 in total)

konsuko
Posting here for the same reason, I don’t understand why this sample sentence is listed to explain 致す/いたす。Is this a mistake on Bunpro’s part, or are we not understanding something here?

cafelatte
I think its there to make users remember not to use itasu in sentences with the kanji 拝 which is an honorific kanji that always takes suru

weebtronic
I think this item could do with an overhaul. I found it really confusing. First, in the structure area you find (emphases mine):
ご + [する] Verb + いたす
I take that to mean you should use ご with する-verbs. But in the description it says:
“In the case of する verbs themselves, simply replace する with いたす. For other verbs, add いたす to the ます stem of the verb, while attaching お, or ご to the beginning.”
I take that to mean you don’t need to add the ご. And finally you have both in the examples:
私たちが用意いたします。
こちらからご連絡いたします。