Tax Japanese: 源泉徴収, 確定申告, 消費税, 控除

Core examples: 源泉徴収, 確定申告, 消費税, 控除, 所得, 住民税, 扶養, 還付, 納付, 課税.

Tax Japanese asks what has already happened and what you still must do

A document says:

源泉徴収票 確定申告 所得控除 還付 納付

A learner may understand the words individually and still not know whether money was already withheld, whether they need to file, whether a refund is possible, or whether a payment deadline is approaching.

Tax Japanese mixes arithmetic, legal categories, employer paperwork, municipal notices, and online filing instructions. It is one of the highest-stakes everyday reading domains for residents, freelancers, students, and employees.

The key principle is:

Tax Japanese must be read by taxpayer, income period, tax type, withholding, deduction, filing obligation, and deadline.

This article is language-literacy guidance, not tax advice.

源泉徴収: withholding at source

源泉徴収

means withholding at source.

Related document:

源泉徴収票 withholding slip

This is often issued by an employer and summarizes salary, withholding, deductions, and related information.

A key distinction:

withheld tax is not always the final tax result.

Depending on circumstances, the taxpayer may be done, may receive adjustment through year-end adjustment, or may need to file a final return.

Related:

年末調整 year-end adjustment

Learner action: identify whether the document is a record of withholding or a request for action.

確定申告: final tax return

確定申告

means final tax return.

It is relevant for many freelancers, people with multiple income sources, certain deductions, side income, medical expense deductions, or other conditions.

Related:

申告 filing/declaration

申告書 tax return form

申告期限 filing deadline

e-Tax electronic filing system

Learner action: 確定申告 means active filing, not just receiving a document.

消費税

消費税

means consumption tax.

It appears on receipts, invoices, business forms, and tax pages.

Related:

税込 tax included

税抜 tax excluded

軽減税率 reduced tax rate

インボイス制度 invoice system

For consumers, 消費税 is often about price display. For businesses and freelancers, it can become filing and invoicing language.

Learner action: identify whether the text is consumer price language or business tax language.

控除: deduction

控除

means deduction.

Common deductions:

所得控除 income deduction

扶養控除 dependent deduction

医療費控除 medical expense deduction

基礎控除 basic deduction

A deduction reduces the amount used to calculate tax, depending on tax type and rule.

Learner action: do not translate 控除 as “discount.” It is a tax calculation term.

所得 and 課税

所得

means income for tax purposes, not always the same as gross money received.

Related:

給与所得 employment income

事業所得 business income

雑所得 miscellaneous income

課税

means taxation/taxable.

Examples:

課税所得 taxable income

非課税 non-taxable

課税対象 subject to taxation

Tax categories matter. A word like 所得 is not just everyday income; it belongs to calculation.

住民税

住民税

means resident tax/local inhabitant tax.

It is separate from national income tax. It may be billed by the municipality, deducted from salary, or handled through notices.

Related:

特別徴収 special collection, often salary withholding by employer

普通徴収 ordinary collection, often taxpayer pays directly

Learner action: income tax and resident tax are different systems.

扶養

扶養

means support/dependency in tax, insurance, and family-support contexts.

Related:

扶養家族 dependent family member

扶養控除 dependent deduction

扶養に入る become a dependent, depending on tax/insurance context

扶養 can appear in tax, social insurance, employment, and family contexts. The rules may differ by system.

Learner action: always ask “dependent for which system?”

還付 and 納付

還付

means refund.

納付

means payment/remittance of tax or public fee.

Examples:

税金が還付される tax is refunded

期限までに納付してください pay by the deadline

Related:

納付書 payment slip

還付金 refund amount

Learner action: 還付 means money may come back; 納付 means you must pay.

Example bank walkthrough

源泉徴収

Withholding at source.

Learner action: tax may already be withheld, but check final obligation.

確定申告

Final tax return.

Learner action: active filing process.

消費税

Consumption tax.

Learner action: consumer price or business tax context.

控除

Deduction.

Learner action: tax calculation term.

所得

Income for tax purposes.

Learner action: category matters.

住民税

Resident tax/local tax.

Learner action: separate from national income tax.

扶養

Dependency/support.

Learner action: tax/social insurance context differs.

還付

Refund.

Learner action: money returned after calculation.

納付

Payment of tax/fee.

Learner action: action and deadline.

課税

Taxation/taxable.

Learner action: whether subject to tax.

Tax-document triage

When reading a tax document:

1. Tax type: income tax, resident tax, consumption tax?
2. Taxpayer: individual, employer, business, dependent?
3. Income period.
4. Amount withheld: 源泉徴収.
5. Filing requirement: 確定申告.
6. Deductions: 控除.
7. Taxable amount: 課税所得.
8. Refund or payment: 還付 or 納付?
9. Deadline.
10. Action status: record, notice, bill, form, or application?

Tax action-status table

Tax documents differ by whether they record, calculate, request, or demand action.

A tax word is not enough. Identify what the document asks you to do.

Income category caution

所得 is not simply cash received. Tax documents classify income.

The category affects forms, deductions, and calculation. If money classification matters, use official guidance or a tax professional.

Deadline and period scan

Always extract:

1. covered year,
2. filing period,
3. payment deadline,
4. refund route,
5. municipality or tax office,
6. whether the date is calendar year or fiscal/institutional year.

Tax Japanese is timeline-sensitive. Missing a deadline can matter more than misunderstanding a noun.

A strong tool for this article would label tax-document fields and action status.

Suggested functions:

1. Tax-type classifier.
2. Withholding slip field explainer.
3. Deduction highlighter.
4. Refund/payment detector.
5. Deadline extractor.
6. Resident-tax versus income-tax warning.
7. Tax-advice caution label.

Final rule

Tax Japanese is not just money vocabulary. It is calculation and obligation vocabulary.

源泉徴収 tells what was withheld. 確定申告 tells whether you file. 控除 affects calculation. 所得 and 課税 define taxable categories. 還付 returns money; 納付 requires payment.

Read tax documents by system, period, amount, and deadline.