Grammar
N2 particle

Based on 〜に基づいて

Meaning

"Based on ~", "in accordance with ~".

Formation

Notes

The basis must carry authority — data, a law, a survey, a fact — and the action stays faithful to it. When the source is merely raw material to be reworked, use をもとに instead.

Examples

We drew up the plan on the basis of the survey results.

Breakdown
survey results based on plan drew up

We will handle it in accordance with the law.

Breakdown
law based on will process

This is a story based on fact. (〜に基づく before a noun)

Breakdown
fact based on story

Drawing on the data, we announced next year's forecast.

Breakdown
data based on next year forecast announced

We improved the product on the basis of the questionnaire.

Breakdown
questionnaire based on product improved

⚠️ Often confused with

Drawing on 〜をもとに(して)

"Using ~ as the material", "based loosely on ~".

According to 〜に応じて

"According to ~", "in response to ~" — varying with the thing named.

Depends on 〜次第だ / 〜次第で

"It depends entirely on ~".

In conformity with 〜に即して

"In line with ~", "in conformity with ~ (the facts, the law, the reality)".

Taking into account 〜を踏まえて

"On the basis of ~", "taking ~ into account" — building on established material.