Kotlin Money
Manipulating monetary amounts is a common computing chore. However, no mainstream language has a first-class data type for representing money, it’s up to programmers to code abstractions for it. This isn’t an issue per se until dealing with rounding issues from operations like installment payments (e.g., buy now, pay later), foreign exchange, or even simple things like fee processing and tax collection. Inspired by my days at N26 Brasil dealing with these challenges, I introduce Money: a Kotlin library that makes monetary calculations and allocations easy.
In plain words
Kotlin Money is a library for the Kotlin programming language that handles monetary calculations and allocations. It provides a data type for representing money and addresses common rounding problems that arise in financial operations like installment payments, currency exchange, tax collection, and fee processing. The library simplifies tasks that developers typically must code themselves in mainstream languages lacking native money types.
written from the facts on this page · September 2026
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