A checklist for incorporation so you can get back to building your product, fundraising, etc.

RIS-Codes-Collection: A Complete Collection contains the Codes for RIS(IRS) Researches.

A tax calculator for stocks and dividends activities.

A free tax tool based on IRS Direct File

Fully open-source US federal tax engine. Single binary cli. Runs on macOS, Linux, and Windows. Built for AI agents using AI agents.

Collection of PulseEffects IRSs. Works with Viper4Android too.

Simulation code for “A Framework of Robust Transmission Design for IRS-Aided MISO Communications With Imperfect Cascaded Channels,” by G. Zhou, C. Pan, et al,  IEEE TSP, vol. 68, pp. 5092-5106, 2020.

Internal Revenue Service (IRS) Filing Information Returns Electronically (FIRE)

11 presets and 400+ impulses for EasyEffects.

ETL toolkit for 2.5 million electronic nonprofit tax returns released by the IRS.

Simulation code for “PI-Based High-Speed Communications with Multiple RISs: Doppler Mitigation and Hardware Impairments,” by K. Wang, C-T. Lam, and B.K. Ng, Applied Sciences, 12, no.14: 7076, 2022.

Matlab code for "A novel channel model for reconfigurable intelligent surfaces with consideration of polarization and switch impairments"

Ferramenta para organizar automaticamente os valores de investimentos a declarar no IRS

Adobe Acrobat JavaScript tool that splits & organizes a multi-recipient IRS Form 1042-S PDF by recipient (Box 13a): groups each form with its instruction pages, sorts A B A into A A B, writes one PDF per recipient + a combined sorted file, self-verifies, and retrieves any recipient on demand.

Channel Estimation and Joint Beamforming Design for Multi-IRS MIMO systems

Simulation code for “RIS-Assisted High-Speed Communications with Time-Varying Distance-Dependent Rician Channels,” by K. Wang, CT. Lam, and BK. Ng, Applied Sciences, 12, no.22: 11857, 2022.

MCP server for US individual taxpayers — 39 tools for federal/state tax calculations, credits, deductions, retirement strategies, and tax planning. All calculations run locally. TY2024 + TY2025 (OBBB Act).

Channel Estimation and Performance Evaluation of Multi-IRS Aided MIMO Communication System

A Python based implementation of swap curve bootstrapping using a multi-dimensional solver.

NTI IRS 2019-2020 "y combinator" team repository