Casio MJ 12 GST Desktop Calculator

The Casio MJ 12GST GST Calculator is a premium desktop calculator designed to simplify business and tax calculations, especially for Indian GST-based invoicing. Engineered by Casio, this model combines precision, ease-of-use, and practical functionality to support daily calculations in offices, retail shops, accounting desks, and academic environments.

This calculator features five dedicated GST keys pre-configured for the major GST slabs (0 %, 5 %, 12 %, 18 %, and 28 %), enabling fast and accurate computation of taxes without repetitive manual input. The GST GT (Grand Total) key further streamlines the process of calculating net, gross, and GST totals for multiple entries — ideal for invoices, billing, and financial reviews. 

Equipped with a 12-digit large LCD display and dual power supply (solar + battery), the MJ-12GST ensures clear visibility and reliable functionality in various lighting conditions. Additional features such as 150-step check & correct, Indian comma marker format, and rounding/decimal selector enhance usability, reduce errors, and speed up workflow for everyday arithmetic and professional tasks. 

Key Features

• 12-digit large, easy-read LCD display

• 5 dedicated GST keys for quick tax rate calculations

• GST GT key for grand total and comprehensive tax breakdowns

• Dual power: Solar and battery operation

• 150-step check & correct function

• Indian comma marker for readable numeric formatting

• Rounding and decimal selector for flexible precision

Why Choose the Casio MJ-12GST?

This model is specifically developed to meet Indian tax and business needs, improving accuracy and speed during invoice preparation and daily financial calculations. Its intuitive interface and dedicated tax keys make it a valuable tool for professionals, retailers, and students alike.