bir

An open-source, rules-based engine for accurate and consistent Philippine tax calculations. Work in progress.

Offline eBIRForms for Mac, Windows and Linux: all 84 BIR tax forms, offline, savefile-compatible with BIR's app. Unofficial.

A Home Assistant integration that retrieves your waste collection schedule (mixed, plastic, paper, etc.).

Biblioteka .NET do pobierania danych firm po NIP, REGON lub KRS bez klucza API, zwracająca dane w formacie JSON

Open-source cloud accounting platform for SMBs and multi-branch businesses — double-entry ledger, invoicing, and BIR-compliant tax handling for the Philippines.

BIR tax compliance SaaS for Filipino freelancers and solo professionals

Chinese-language Philippine legal information & compliance assistant skill (not legal advice)

Secure WordPress shortcode for querying Poland's GUS BIR register by NIP, KRS, or REGON.

Philippine BIR income tax computation for Python: the graduated tables as data, and one function over them.

Philippine BIR Alphanumeric Tax Codes (ATC) Table

Kotlin Multiplatform client for the Philippine BIR EIS e-invoice API: CAS JSON model, validator, JWS/RSA/AES/HMAC, and a mock EIS for tests.

Laravel client for the Polish GUS BIR/REGON API

MCP server for PhilForms: find, fill and verify official Philippine government forms (BIR, SSS, PhilHealth, Pag-IBIG, CSC…)

Filipino payroll calculators for JS & PHP — SSS, PhilHealth, Pag-IBIG contributions + 13th month + take-home. Tables versioned by effective year.

Composer-installable PHP mirror of kon2raya24/ph-bir. Read-only — file issues upstream.

BIR tax utilities for the Philippines — VAT (12% / ₱3M threshold), percentage tax (3% standing, with historical 1% CREATE-era rate), BIR form reference. JS + PHP.

Philippine payroll at 2026 rates: SSS, PhilHealth and Pag-IBIG contributions, BIR withholding tax, net pay, employer cost and 13th month. No dependencies.

Python-based Information Retrieval system implementing multiple retrieval models (VSM, LSI, BM25, BIR, Language Models) with evaluation metrics on the MEDLINE dataset.