What is the difference between sakunen and kyonen?

Both words mean last year. 去年 is the normal everyday word in conversation, while 昨年 is more formal and is common in business email, announcements, and reports.

How do you say last year in Japanese in normal conversation?

In normal conversation, the safest choice is 去年. It sounds natural with friends, classmates, teachers, and in most spoken Japanese.

Is sakunen more polite than kyonen?

Yes. 昨年 is more formal and polished than 去年, so it is preferred in business or official writing.

Can I use kyonen in writing?

Yes, you can use 去年 in ordinary writing, blogs, and personal notes. It only starts to sound too casual in business-style or official writing.

Which word appears more on the JLPT?

You should know both. 去年 appears often in conversation-style material, while 昨年 appears more often in formal reading passages and notices.

What is the best way to remember sakunen vs kyonen?

Remember the rule as speech vs polished writing: 去年 for normal speaking, 昨年 for formal writing. The meaning stays the same; only the register changes.

Sakunen vs Kyonen (昨年 vs 去年): Formal vs Everyday Japanese

Sakunen (昨年) is the more formal word for “last year,” while kyonen (去年) is the more common everyday word in Japanese. Both mean the same thing, but 去年 sounds natural in conversation and 昨年 is safer in business email, announcements, reports, and polished writing.

Direct answer: 昨年 is formal, 去年 is common, and native speakers choose between them based on tone rather than meaning.

Written by YoruLearn Team · Last reviewed: August 2026

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Sakunen vs Kyonen Comparison Table

Word	Meaning	Formality	Where used	Example
去年 (kyonen)	last year	Everyday / neutral	Conversation, casual writing, normal speech	去年、日本に行きました。
昨年 (sakunen)	last year	More formal	Business writing, formal email, notices, reports	昨年の売上を報告します。

How to Say Last Year in Japanese Naturally

In spoken Japanese, 去年 is the default. It sounds natural with friends, classmates, tutors, and in most daily conversation.

去年、日本に行きました。 — I went to Japan last year.
去年の夏は暑かったです。 — Last summer was hot.
去年から日本語を勉強しています。 — I have been studying Japanese since last year.

When you switch to business-style or official writing, 昨年 sounds cleaner and more appropriate.

昨年の売上は前年比で増加しました。 — Last year’s sales increased year over year.
昨年は多大なるご支援を賜り、誠にありがとうございました。 — Thank you very much for your generous support last year.
昨年実施した調査の結果を報告します。 — We report the results of the survey conducted last year.

Where 去年 and 昨年 Sound Natural

If you searched for 昨年去年 difference, this is the practical rule native speakers follow:

Context	More natural choice	Reason
Conversation	去年	Simple and everyday
Personal blog or diary	去年	Friendly and direct tone
Work email	昨年	Safer formal register
Company notice or report	昨年	Expected written style
News article	昨年	Matches formal media tone

More Examples: Formal Writing vs Everyday Conversation

Context	Natural choice	Example
Annual report	昨年	昨年の売上は増加しました。
Business email	昨年	昨年は大変お世話になりました。
Conversation with a friend	去年	去年、日本に行った。
Casual diary or social post	去年	去年は忙しかった。

Both words mean “last year.” The distinction is register, not time. 昨年 sounds objective and formal; 去年 is the normal conversational choice. Neither one changes the date range.

5 Common Mistakes with 昨年 and 去年

Thinking one word is more correct. Both are correct. The real issue is formality, not meaning.
Using 昨年 in casual chat to sound advanced. It can sound stiff or unnatural in normal conversation.
Using 去年 in polished business writing. It is understandable, but 昨年 is usually the better professional choice.
Memorizing the words without context. Learn them inside full phrases like 去年の夏 and 昨年の売上.
Ignoring nearby time words. This page is easier to remember when you also study Japanese time expressions like 今年, 来年, and 先週.

Frequently Asked Questions

Sakunen vs kyonen: what is the difference?

Both mean “last year.” 去年 is the normal everyday word, while 昨年 is more formal and common in polished writing.

How do you say last year in Japanese in conversation?

In conversation, use 去年. It sounds natural and is the form most learners need first.

Which is more formal, sakunen or kyonen?

Yes. 昨年 is more formal and is the safer choice in business or official writing.

What is the difference between 昨年 and 去年?

Yes. 去年 is fine in ordinary writing, personal notes, and casual content. It just sounds less polished in formal business writing.

Which word is better for the JLPT?

You should know both. 去年 is common in spoken-style sentences, while 昨年 appears more often in formal reading.

How should I remember sakunen vs kyonen?

Remember one rule: 去年 for normal speech, 昨年 for formal writing.

Related Study Pages

Japanese Time ExpressionsToday, tomorrow, last week, last month, and more. Days in JapaneseWeekdays, month dates, and relative day words. Months in JapaneseAll twelve months with readings and date examples. Japanese Date FormatHow Japanese writes full dates correctly.

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Sources and Editorial Notes

This guide distinguishes dictionary meaning from real-world register. The examples are short original learning examples; formal and everyday usage should always be chosen for the situation.