Formal vs Informal Japanese: Beginner Guidea

JLRC - Content Team 2026/07/15

Japanese is not only about learning words and grammar.

To speak Japanese naturally, learners also need to understand when and how to use different levels of speech.

In English, the difference between formal and informal speech is usually not very difficult for beginners. But in Japanese, the way you speak can change depending on the situation, relationship, age, position, and level of politeness.

This is why beginners often hear different versions of the same idea.

For example, Japanese used in class, anime, casual conversation, business, and customer service may sound different.

For beginners, the most important point is this: do not only learn Japanese words. Learn how to use them in the right situation.

School Selection Guide

Why Japanese Has Formal and Informal Speech
Polite Japanese: Why Beginners Usually Learn です and ます First
Informal Japanese: Why Casual Speech Can Be Difficult
Formal Japanese and Business Japanese
Is Japanese Slang Important for Beginners?
Common Mistakes Beginners Make
How to Study Formal and Informal Japanese
Why Structured Lessons Help Beginners Speak More Naturally
Learn Japanese That Fits the Situation
FAQ

Why Japanese Has Formal and Informal Speech

Japanese places strong importance on relationship and situation.

The way you speak may change depending on whether you are talking to:

a teacher
a friend
a customer
a manager
an older person
a younger person
someone you just met

This does not mean beginners need to master every style immediately.

However, beginners should understand that Japanese has different speech levels.

A sentence that sounds natural with a close friend may sound too casual in class or at work. A sentence that sounds polite in class may feel too formal with close friends.

This is one reason why Japanese communication is not only about grammar. It is also about context.

Polite Japanese: Why Beginners Usually Learn です and ます First

Most beginners start with polite Japanese.

This usually includes sentence endings such as です and ます.

For example:

です is often used for polite descriptions.
ます is often used with polite verb forms.

Beginners usually learn polite forms first because they are safe and useful in many situations.

Polite Japanese is helpful when speaking to:

teachers
classmates you do not know well
new people
staff
customers
people in formal situations

This is why beginner Japanese courses often focus on polite forms at the beginning.

Polite Japanese helps learners communicate respectfully while building a strong grammar foundation.

For learners preparing for the beginner level, JLRC also has a guide on How to Pass JLPT N5.

Informal Japanese: Why Casual Speech Can Be Difficult

Informal Japanese is often used with friends, family, and people who are close to you.

It may sound shorter, more direct, and more natural in casual conversation.

However, casual speech can be difficult for beginners because it often uses plain forms, contractions, shortened expressions, and context-based meaning.

For example, beginners may hear casual Japanese in:

anime
dramas
social media
conversations between friends
YouTube videos
informal messages

This can make casual Japanese feel exciting and useful.

But beginners should be careful.

Casual Japanese is not always appropriate in class, business, or formal situations. If a learner uses casual Japanese with the wrong person, it may sound too direct or rude.

NCasual Japanese is useful, but beginners need to understand when it is appropriate.

Formal Japanese and Business Japanese

Formal Japanese is often used in professional, customer service, or official situations.

It can include more polite expressions, careful wording, and honorific language.

Beginners do not need to master advanced business Japanese immediately. However, they should understand that Japanese used at work can be different from casual conversation.

For example, Japanese used with a close friend may not be suitable when speaking to a customer, employer, teacher, or business contact.

This is especially important for learners who want to use Japanese for work, study, or future career opportunities.

Is Japanese Slang Important for Beginners?

Japanese slang can be interesting, especially for learners who enjoy anime, dramas, music, or social media.

However, slang should not be the main focus for beginners.

Slang changes quickly and may not be suitable in many situations. Some slang expressions may sound too casual, childish, rude, or outdated depending on how they are used.

For beginners, it is better to first build a strong foundation in:

basic grammar
polite forms
common vocabulary
particles
simple conversation
listening and reading

After that, learners can slowly understand casual expressions and slang in the right context.

In other words, slang can make Japanese fun, but it should not replace basic Japanese study.

Common Mistakes Beginners Make

Many beginners make mistakes because they copy Japanese from anime, social media, or casual conversations without understanding the situation.

Here are some common mistakes.

Mistake 1: Using casual Japanese too early

Casual Japanese may sound natural among friends, but it may not be appropriate with teachers, staff, or people you do not know well.

Mistake 2: Thinking polite Japanese is only for business

Polite Japanese is not only for business. It is also useful in class, daily communication, shops, travel, and first meetings.

Mistake 3: Memorizing expressions without context

The same meaning in English may have different Japanese expressions depending on the situation.

Mistake 4: Copying anime Japanese directly

Anime Japanese can be fun, but characters may use exaggerated, rough, or unusual speech.

Mistake 5: Forgetting that relationship matters

In Japanese, who you are talking to is very important.

Learning the right expression for the right situation helps beginners sound more natural and respectful.

How to Study Formal and Informal Japanese

Beginners do not need to learn everything at once

A good approach is to study step by step.

First, learn polite Japanese clearly. Then, understand basic plain forms. After that, notice how casual Japanese appears in real conversations. Finally, learn more formal or business expressions when your level becomes higher.

When studying, ask yourself:

Who is speaking?
Who is listening?
Is the situation casual or formal?
Is the expression polite or casual?
Would this be appropriate in class, work, or with a new person?

This helps learners understand Japanese as real communication, not only as grammar rules.

Why Structured Lessons Help Beginners Speak More Naturally

Formal and informal Japanese can be confusing if learners study randomly.

Structured lessons help beginners understand not only what words mean, but also when to use them.

With structured learning, students can:

learn polite forms clearly
understand basic plain forms
avoid overly casual expressions
practice natural beginner conversations
connect grammar with real situations
build confidence step by step

JLRC develops Japanese learning materials designed to support structured Japanese study from beginner to higher JLPT levels.

With the right structure, beginners can make clearer progress with less wasted time.

For beginners who want to understand JLRC’s overall approach, you can also learn more about JLRC’s Japanese learning approach, developed through more than 25 years of teaching experience.

Students who want to start or continue their Japanese learning journey can explore JLRC’s Japanese language courses from beginner to higher JLPT levels.

Learn Japanese That Fits the Situation

Formal and informal Japanese are important because Japanese communication depends on situation and relationshi

Beginners do not need to master every speech style immediately. But they should understand that polite, casual, and formal Japanese are not the same.

To study effectively, remember:

polite Japanese is useful and safe for beginners
casual Japanese should be used carefully
slang is interesting but not the main priority
formal Japanese becomes more important for work and official situations
context matters in Japanese communication
structured learning helps you avoid unnatural expressions

The goal is not only to speak Japanese, but to speak Japanese in a way that fits the situation.

For learners outside the Philippines or those who want a flexible online option, JLRC also offers a way to learn Japanese online from anywhere.

JLRC’s class details, schedules, and payment information will be sent via email after the simple form submission.

FAQ

What is the difference between formal and informal Japanese?

Formal Japanese is used in polite, professional, or official situations, while informal Japanese is used more often with friends, family, or people who are close to you.

Should beginners learn formal or informal Japanese first?

Beginners usually learn polite Japanese first because it is useful and safe in many situations, including class, travel, shops, and first meetings.

Is casual Japanese rude?

Casual Japanese is not always rude, but it can sound inappropriate if used with the wrong person or in the wrong situation. Context and relationship are important.

Is Japanese slang important for beginners?

Japanese slang can be fun, but it should not be the main focus for beginners. It is better to first learn basic grammar, polite forms, common vocabulary, and natural beginner communication.