記入 vs 入力 vs 記載 vs 登録: Japanese Fill In, Enter Information, State in Documents, Register Data, and Form Vocabulary Explained

You are sitting at a clinic reception desk in Japan. A staff member hands you a paper form and says こちらに記入してください. Later that day you create an account on a Japanese website. The screen says メールアドレスを入力してください. You click submit and see 登録完了. And somewhere in the terms you read 契約書に記載されている内容. Four different words, four different moments — but they all seem to mean something like “write” or “enter” in English.

This article breaks down exactly when to use 記入（きにゅう）, 入力（にゅうりょく）, 記載（きさい）, and 登録（とうろく）, and explains the related form vocabulary that appears on every Japanese paper form, app screen, and registration page. By the end you will be able to read any Japanese form or sign-up page with confidence.

Quick Answer — 記入 vs 入力 vs 記載 vs 登録

記入 means fill in or write in

記入（きにゅう）describes the act of physically writing information into a designated field or blank space. The kanji 記 means “to record” and 入 means “to put in.” The word almost always involves paper — a form, application, or printed document where there is a blank space waiting to be filled. You write with a pen or pencil. The result is visible ink on paper.

入力 means enter or type data

入力（にゅうりょく）describes inputting data into a device or digital system — typing on a keyboard, tapping on a touchscreen, or speaking into a voice input field. The kanji 力 means “power/force,” so 入力 literally means “input force” or “putting power in.” This word belongs to digital contexts: web forms, apps, computers, ATMs, and any screen with a text box.

記載 means stated or written in a document

記載（きさい）describes information that is already recorded in a document — a contract, manual, official notice, or published material. The key difference is perspective: 記入 and 入力 are actions the user performs; 記載 describes what the document itself says. You read something that is 記載されている（きさいされている）— stated/recorded therein. You do not 記載 a form field yourself in everyday usage.

登録 means register or save to a system

登録（とうろく）describes information being officially saved into a system, database, or registry. When you create an account, subscribe to a service, or save your profile, your data is 登録 — registered. The kanji 登 means “to climb up / to go on record” and 録 means “to record.” 登録 always implies the data now lives somewhere permanently (or semi-permanently) in a system.

Why English speakers mix these up

In English, “fill in a form” works for both paper and digital contexts. Japanese draws a sharper line: paper gets 記入, screens get 入力. English also uses “register” loosely — “register your email” can mean simply typing it. In Japanese, 入力 and 登録 are two separate steps: you type first (入力), then the system saves the result (登録). If you only 入力 but do not click submit, you are not yet 登録.

What Does 記入 Mean?

記入 as fill in a form field

記入（きにゅう）is the standard word for completing a paper form. Hospitals, government offices, banks, and schools all use 記入 when they hand you a form with blank lines. The verb form is 記入する — “to fill in.” Staff will say こちらに記入してください (“Please fill in here”) as they point to a blank field.

Key related nouns:

• 記入欄（きにゅうらん） — a fill-in blank or field on a form (欄 = column/field)
• 記入漏れ（きにゅうもれ） — a missed or skipped field (漏れ = leakage/omission)
• 必要事項（ひつようじこう） — required items / necessary information

申込書に記入する / 記入欄 / 記入漏れ

申込書（もうしこみしょ） means “application form” — one of the most common paper forms in Japan. You will find 申込書 at banks, gyms, mobile phone shops, and event registrations. The phrase 申込書に記入する means “to fill in the application form.” When a field has been missed, staff will point to the blank and say 記入漏れがあります — “There is a missed field.”

記入 on paper forms and form fields

Although 記入 is most at home on paper, you will sometimes see it on digital forms that are designed to look like paper documents — for example, a scanned PDF application you fill in digitally, or a government e-form that uses paper-style language. In these cases 記入 is kept for consistency with the printed version. As a rule of thumb: if it feels like a paper form, expect 記入.

Common example sentences

Yuka

I went to the ward office yesterday and they handed me a form — it said 記入欄 at the top of every blank space. Now I know exactly what that means!

Rei

Right — and if you miss a field, they will say 記入漏れがあります. It is really useful to recognize that phrase so you know which blank to go back and fill in.

What Does 入力 Mean?

入力 as type or enter data

入力（にゅうりょく）is the digital counterpart of 記入. Any time you type something into a text box on a website, app, ATM, self-checkout terminal, or computer form, the instruction will use 入力. The verb form is 入力する — “to enter / to type.” You will see it constantly on Japanese websites and apps: login screens, registration forms, search boxes, and payment pages.

メールアドレスを入力する / 入力欄 / 未入力

Three 入力 compounds appear on almost every Japanese sign-up page:

• 入力欄（にゅうりょくらん） — the input field / text box (the digital equivalent of 記入欄)
• 未入力（みにゅうりょく） — not yet entered; a field that has been left blank (未 = not yet)
• 入力してください — please enter / please type (the standard digital instruction)

When a form validation error fires because you left something blank, the error message almost always reads 未入力の項目があります — “There are items that have not been entered.”

入力 in app and web form contexts

Japanese e-commerce and banking sites use 入力 extensively across multi-step forms. A typical checkout flow might show three screens: 配送先の入力 (entering your shipping address), お支払い情報の入力 (entering payment information), and 確認画面（かくにんがめん） (confirmation screen). Each screen instructs you to 入力する before moving to the next step. Notice that 登録 only appears at the very end — when the system actually saves everything.

Common example sentences

What Does 記載 Mean?

記載 as stated in a document

記載（きさい）is fundamentally different from the other three words. 記入 and 入力 are things you do to a form. 記載 is what a document already contains. It describes information that has been officially recorded or printed in a document — a law, contract, manual, warranty card, or official notice. The passive form 記載されている (“is stated / is written”) is far more common than the active form.

契約書に記載されている / 記載事項 / 記載漏れ

Key 記載 compounds:

• 記載事項（きさいじこう） — stated items / contents recorded in the document
• 記載漏れ（きさいもれ） — omission from a document; information that should have been recorded but was not (used by the writer of the document, not the person filling it in)
• 記載内容（きさいないよう） — the content as stated in the document

Note the contrast: 記入漏れ means a user missed a blank field. 記載漏れ means the document’s author failed to include required information. Both use 漏れ (omission), but one blames the person filling in; the other blames the document itself.

記載 is usually what the document says, not what the user fills in

Think of 記載 as the voice of the document speaking to you. When you read a contract and see 第3条に記載されているとおり — “as stated in Article 3” — that is 記載 in action. When you read a product manual and see 説明書に記載があります — “it is stated in the manual” — that is also 記載. You are the reader; the document is the writer. This passive, authoritative quality is what makes 記載 feel more formal than 記入 or 入力.

Common example sentences

What Does 登録 Mean?

登録 as register or save to a system

登録（とうろく）is the word for officially saving or registering data in a system. When you sign up for a service, your account is 登録 — registered. When a company adds your address to their database, that information is 登録 — saved. The concept extends beyond digital contexts: registering a trademark (商標登録（しょうひょうとうろく）), enrolling in a school, or registering at a government office all use 登録.

会員登録する / 登録情報 / 登録完了

The most common 登録 compounds you will encounter online:

• 会員登録（かいいんとうろく） — member registration / creating an account (会員 = member)
• 登録情報（とうろくじょうほう） — registered information / your saved account details
• 登録完了（とうろくかんりょう） — registration complete (the success screen after sign-up)
• 登録済み（とうろくずみ） — already registered (済み = already done)
• 登録する — to register / to save to a system

入力 vs 登録 — typing is not the same as being registered

This is the most important nuance in this article. Many English speakers assume that typing their information (入力) is the same as registering it (登録). It is not. Japanese digital processes treat these as two separate steps:

1. 入力 — you type your name, email, and password into the form fields on screen.
2. 確認画面（かくにんがめん） — you review what you typed on a confirmation screen.
3. 登録 — you click the submit button and the system saves your data. Now you are registered.

If you close the browser after step 1 without reaching the 登録完了 screen, your data was entered (入力済み) but not saved (未登録). This is why confirmation screens in Japan explicitly say things like 「登録する」ボタンを押してください — “Please press the ‘Register’ button.” Pressing that button is the act of 登録.

Common example sentences

Yuka

So when I typed my email but did not press the final button, I was not actually registered? That explains why I never got the confirmation email!

Rei

Exactly. 入力 is just typing. 登録 is when the system actually saves everything. Always look for 登録完了 to know you are done.

Pairwise Comparisons

記入 vs 入力 — paper/form writing vs digital typing

The boundary can blur slightly on hybrid digital-paper forms (such as a PDF you complete on screen), but as a practical rule: if a human holds a pen, it is 記入; if a human types or taps, it is 入力.

記載 vs 記入 — document states vs user fills in

Both 記載 and 記入 involve writing, but the subject is different. 記入 puts the user in the active role: you write something into a blank. 記載 puts the document in the active role: the document states something. A simple test: if you can replace the phrase with “the document says,” use 記載. If you can replace it with “I wrote it in the blank,” use 記入.

• ✅ 契約書に記載されている内容 — The content stated in the contract (document speaks)
• ✅ 申込書に記入する — To fill in the application form (user acts)
• ❌ 契約書に記入されている内容 — Sounds like you personally wrote in the contract blanks
• ❌ 申込書に記載する — Unnatural; 記載 sounds like you are authoring an official document

入力 vs 登録 — typing vs saving to system

This is the most practically important distinction. Think of it as a two-stage pipeline:

入力 = data is in the form fields on your screen (temporary, client-side)
登録 = data has been submitted and saved by the server (permanent, server-side)

Japanese websites make this explicit by labeling the final submit button 登録する rather than 送信する or 確定する in most account creation flows. When you see that button, pressing it is the moment 登録 happens. Before that click, no matter how carefully you typed, you are not yet registered.

記入 vs 登録 — filling in vs registering

記入 and 登録 are not the same step, even on paper forms. You 記入 a form (fill it in), and then staff 登録 your information into their system from what you wrote. This is why a bank clerk might say こちらに記入してください and later confirm 登録が完了しました — the first phrase is your action, the second is the system’s action.

Form Words You Need to Know

必須項目 / 任意 — required vs optional fields

必須項目（ひっすこうもく） means “required fields” — items you must fill in or enter before the form can be submitted. On Japanese websites, required fields are usually marked with 必須 or a red asterisk (*). Skipping them triggers a validation error.

任意（にんい） means “optional” — fields you may leave blank without penalty. You will often see 任意 printed next to optional fields in gray or in brackets.

入力欄 / 記入欄 — digital input field vs paper blank

The kanji 欄（らん）means a ruled column or designated space — the box or line where you put information. Combined with 入力 or 記入, it specifies what kind of space:

• 入力欄（にゅうりょくらん） — a text box / input field on a digital form
• 記入欄（きにゅうらん） — a blank line or box on a paper form

Both translate roughly to “field” in English, but they signal the medium. Seeing 記入欄 on a screen is unusual; it usually means the digital form is imitating a paper document.

未入力 / 記入漏れ — not entered / missed field

These two words cover the “oops, you missed something” scenario:

• 未入力（みにゅうりょく） — digital context; a field that has not been typed into (未 = not yet). Used in error messages: 未入力の項目があります.
• 記入漏れ（きにゅうもれ） — paper context; a field on a form that the person forgot to fill in. Used by clerks: 記入漏れがあります.

The meaning is the same — “you missed a field” — but the word choice tracks the medium. Hearing 記入漏れ means someone is looking at your paper; seeing 未入力 means a webpage is checking your form.

登録済み / 確認画面 — already registered / confirmation screen

• 登録済み（とうろくずみ） — already registered. The suffix 済み（ずみ）means “already completed.” If you try to sign up with an email that is 登録済み, you will see this word in the error message.
• 確認画面（かくにんがめん） — confirmation screen. The page between “enter your data” and “register.” On this screen you review everything before committing to 登録. Always read this screen carefully — it is your last chance to catch errors before the data is saved.

Common Mistakes English Speakers Make

Using 入力 for paper forms (should be 記入)

Saying この用紙に入力してください for a paper form sounds odd in Japanese because 入力 implies a keyboard or device. The natural word is 記入: この用紙に記入してください. If a hospital clerk hands you a paper form and you say どこに入力しますか, they will understand but may look puzzled. Use 記入 for anything involving a pen on paper.

Thinking 入力してください means you are registered

入力してください is an instruction to type, not a confirmation that your data has been saved. Many learners fill in a form, see the instruction 入力してください, type everything in, and close the tab — assuming the job is done. It is not. You must reach the 登録完了 screen to be registered. Always look for a button labeled 登録する, 送信する, or 確認へ進む and click it.

Confusing 記載されています (document says) with 記入してください (please fill in)

These two phrases look similar on paper but mean opposite things:

• 記載されています — “It is stated here.” You are being told to read something.
• 記入してください — “Please fill in.” You are being asked to write something.

Confusing these can lead to embarrassing situations — either writing in a space that is not meant to be written in, or missing a field you were supposed to complete. Check which verb is being used: 記載（さ）れている = states/is written; 記入してください = please write/fill in.

Missing 必須項目 on forms

Japanese forms often have many fields, and not all of them are required. Scan for 必須 labels or asterisks (＊) before starting to fill in a form. Skipping a 必須項目 on a paper form will get the whole thing returned to you. On a digital form it triggers a validation error that highlights each empty required field. Save yourself time by identifying the 必須項目 first.

Confusing 記入漏れ and 未入力

Both mean “a field you did not fill in” but mixing them up in the wrong context sounds unnatural. On a website error message, you will always see 未入力 — never 記入漏れ. In a face-to-face situation at a counter with a paper form, you will always hear 記入漏れ — never 未入力. Using the wrong word will not cause a serious misunderstanding, but it will mark you as a learner who has not quite absorbed the digital vs. paper distinction yet.

Decision Rule: Which Form Word Should You Use?

Use this flowchart whenever you are unsure which word to use:

Is the information already IN a document (contract, manual, official notice)?
  └─ YES → 記載（きさい）  "It is stated in the document."
  └─ NO → Are you or the user actively putting information somewhere?
              └─ YES → Is the medium PAPER (pen, printed form)?
                            └─ YES → 記入（きにゅう）  "Fill in the blank."
                            └─ NO (digital, keyboard, screen) → 入力（にゅうりょく）  "Enter / type."
              └─ SAVING → Is the system officially saving/storing the data?
                            └─ YES → 登録（とうろく）  "Registered in the system."

Quick Quiz

Choose the correct word: 記入 / 入力 / 記載 / 登録. Answers are below.

1. 病院で渡された紙の問診票に名前と生年月日を______してください。
   Please ______ your name and date of birth on the paper medical questionnaire given at the hospital.
2. ウェブサイトのログイン画面でパスワードを______してください。
   Please ______ your password on the website’s login screen.
3. この保証書に______されている内容は法律に基づいています。
   The content ______ in this warranty card is based on the law.
4. メールアドレスを______して「______する」ボタンを押すとアカウントが作成されます。
   ______ your email address and press the “______” button to create your account.
5. ______済みのメールアドレスを使って新しいアカウントを作ることはできません。
   You cannot create a new account using an already-______ email address.
6. フォームに______漏れがあると受付できません。
   If there is a missed field on the form, we cannot accept it.

Answers:

1. 記入 — paper form, pen required
2. 入力 — digital login screen
3. 記載 — the warranty card (document) states the content
4. 入力 + 登録 — type first (入力), then the system saves (登録)
5. 登録 — 登録済みのメールアドレス = already-registered email
6. 記入 — 記入漏れ = missed field on a paper form

Which of these did you find most useful? If you have a question about form vocabulary in Japanese — or a real situation where you were confused by one of these words — share it in the comments below!

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