Identifying Money Without Sight

How blind and visually impaired people tell banknotes and coins apart, the design features and apps that help, and why accessible money matters.

For blind and visually impaired people, handling cash raises a basic question: how do you know which note or coin you are holding? Accessible currency design and new technology help people manage money independently.

Design features

Central banks use several features to help:

Different sizes: many currencies use notes of different lengths or widths for different values.
Tactile marks: raised shapes or dots printed on notes so they can be identified by touch.
Large, high-contrast numbers for people with low vision.
Distinct coin shapes and edges: coins may differ in size, thickness, shape or edge texture, such as smooth, ridged or scalloped.

Indian currency

India’s newer banknotes, introduced from 2016 onward, include raised features such as identification marks and angular bleed lines printed on the edges, intended to help visually impaired people. Different notes have different sizes and colours.

However, visually impaired users and organisations have raised concerns that some newer notes are harder to distinguish than older ones, because sizes are closer together and tactile features wear down with use. The Bombay High Court heard a petition on this issue, and the RBI acknowledged the concerns.

The MANI app

In 2020, the Reserve Bank of India launched MANI, the Mobile Aided Note Identifier, a free app that identifies Indian banknotes using a phone camera and announces the value in audio. It works offline once installed.

Other strategies

Folding notes in different ways for different values.
Using wallets with separate sections for each value.
Asking cashiers to count change aloud.
Digital payments, such as accessible UPI apps, which avoid handling cash altogether.

Checking change at a shop

A blind shopper pays with a 500 rupee note and receives change. He uses the MANI app to confirm each note's value, then folds the 100 rupee notes lengthwise and keeps the 50s flat, storing them in separate wallet sections. Next time, he can find the right note by touch alone.

Why it matters

Being able to identify money independently protects against being short-changed and supports dignity and financial independence. Accessible currency design is a practical example of inclusion in economic life.

Thinking digital payments have made accessible cash unnecessary

Many people, especially in rural areas and among older adults, still rely on cash. Accessible banknote design remains important alongside accessible digital payments.

Key takeaways

Blind people identify money through note sizes, tactile marks, coin shapes and edges.
India's newer notes include tactile features, but users have raised concerns about distinguishing them.
The RBI's MANI app, launched in 2020, identifies notes by camera and audio.
Folding systems, organised wallets and accessible digital payments also help.