The standard way to say thank you in Japanese is arigato gozaimasu (ありがとうございます). Among friends you can shorten it to arigato (ありがとう), and a quick domo (どうも) works for small, everyday thanks. For deeper gratitude, stack them together into domo arigato gozaimasu (どうもありがとうございます).
Think of it as a ladder. The higher you climb, the more polite and grateful you sound — and travelers are safest starting near the top.
The politeness ladder
Japanese thanks scale with the situation. Domo (どうも) is a casual, almost throwaway "thanks." Arigato (ありがとう) — you will also see it written arigatou in romaji — is the familiar friends-and-family form. Add gozaimasu and you get arigato gozaimasu (ありがとうございます), the polite default that fits nearly any moment in public.
The same core word, dressed up or down, covers a whole nation's worth of gratitude.
どうも
domo
Thanks (quick, casual)
ありがとう
arigato
Thank you (casual)
ありがとうございます
arigato gozaimasu
Thank you (polite)
When in doubt, use arigato gozaimasu. The full polite form is never wrong — with a server, a stranger, or a shopkeeper it is exactly right, while a bare arigato can sound a little too familiar.
Thanking for something already done
Japanese has a detail English lacks: a past-tense thank you. When someone has finished doing something for you — a meal is over, a tour has ended, the taxi has pulled up — you switch to arigato gozaimashita (ありがとうございました).
That final -mashita signals the favor is complete. Use the present arigato gozaimasu while a kindness is still unfolding, and the past form once it is finished — the switch is subtle, but native speakers feel it. Leaving a restaurant, a warm arigato gozaimashita toward the staff is the perfect parting line.
どうもありがとうございます
domo arigato gozaimasu
Thank you very much (polite)
ありがとうございました
arigato gozaimashita
Thank you (for something completed)
サンキュー
sankyu
Thanks (slangy, among friends)
When "sorry" means "thank you"
Here is the twist that surprises visitors: sumimasen (すみません), usually "excuse me" or "sorry," very often does thank-you duty. Someone picks up the glove you dropped, holds a door, or goes out of their way — and the natural response is sumimasen.
It carries a shade of "sorry for the trouble I caused you," which Japanese politeness treats as a graceful way to say thanks. Our guide to sumimasen unpacks its many faces.
This is why you hear sumimasen far more than any textbook predicts. In Japan, acknowledging the other person's effort — the trouble they took for you — often feels warmer than a plain "thank you."
A small bow, every time
Thanks in Japan is physical as much as spoken. A slight bow travels with almost every arigato — a quick dip of the head for a small kindness, a deeper and longer bow for real gratitude.
You do not need to get the angle perfect. Even a small nod as you say the words shows you mean them, and pairing the bow with the phrase instead of rushing past it is what makes a plain arigato gozaimasu feel genuinely warm. Among young friends, you might even catch a breezy sankyu (サンキュー), borrowed straight from the English "thank you."
Keep learning Japanese
A good thank-you is the first thing that makes a traveler sound gracious. Learn a few dozen more with our free essential Japanese phrases, then practice them out loud with audio and spaced repetition in the Pretalk app until arigato gozaimasu rolls off without a thought.