Parses the MPAC Year-End Tax File (YETF) into a usable object.

Automated stream rotation useful for log files

TaxMaxi CLI - Crypto tax infrastructure for fintechs, degens, and AI agents.

Standard Number Validation

Simple utility to get the current year with 2 or 4 digits.

Medusa Tax module

A library for obtaining browser versions with their maximum supported Baseline feature set and Widely Available status.

International sales tax calculator for Node (offline, but provides optional online VAT number fraud check). Tax rates are kept up-to-date.

Parse a year into its full number value

JavaScript date/time utilities for Vega.

A transport for winston which logs to a rotating file each day.

TaxJar Sales Tax API for Node

Expand a short year to a full year (15 -> 2015)

Calculates Easter for a given year

Chinese Calendar

Canadian tax data and calculation functions.

Fully typed application that generates PCN874 text file

safely create multiple ReadStream or WriteStream objects from the same file descriptor

A natural language date parser in Javascript

Your AI agent, fluent in Australian tax. MCP server with cited answers from 34,500+ ATO documents, the income tax and GST Acts and 4,900+ rulings, plus deduction, depreciation, BAS and audit-risk tools that know your tax profile.