Muhasib – Reverse % & VAT Calculator

Name: Muhasib – Reverse % & VAT Calculator
Author: Basheer Chamoun

Instantly reverse percentage increases, extract VAT, and gross-up amounts. Built for accountants & auditors.

As of June 2026, Muhasib – Reverse % & VAT Calculator has 6 users in the Productivity category.

Basheer Chamoun Productivity

Chrome Web Store ↗.crx

Users+20.0%

Rating0%

—

— reviews

Reviews0%

—

Version

1.0.3

Manifest V3

History

10 snapshots

Tracking since Apr 3, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 3, 2026	5	—	—	1.0.3
Apr 17, 2026	4	—	—	1.0.3
Apr 23, 2026	6	—	—	1.0.3
Apr 28, 2026	7	—	—	1.0.3
May 5, 2026	6	—	—	1.0.3
May 11, 2026	5	—	—	1.0.3
May 16, 2026	4	—	—	1.0.3
May 22, 2026	5	—	—	1.0.3
Jun 1, 2026	4	—	—	1.0.3
Jun 9, 2026	5	—	—	1.0.3
Now	6	—	—	1.0.3

Permissions & access

Permissions: activeTabcontextMenusstoragescriptingcookies
Host access: https://muhasib.arzs.app/*, http://localhost:8000/*, https://eservices.finance.gov.lb/*

Screenshots

Muhasib – Reverse % & VAT Calculator screenshot 1

About

Muhasib (محاسب) – The Ultimate Tool for Lebanese Accountants & Auditors

Streamline your audit and accounting workflow directly within your browser. Muhasib allows you to instantly reverse percentage increases, extract VAT, and gross-up amounts without leaving your current tab.

Key Features:

Reverse % Functionality: Easily find the original amount before a percentage increase was applied. Perfect for checking gross amounts from net figures.
VAT Extraction & Addition: Toggle instantly between VAT-inclusive and exclusive amounts. Pre-configured for the Lebanese 11% VAT rate.
Gross-Up Calculator: Quickly reverse tax and Withholding Tax (WHT) deductions. Includes presets for:
Services (7.5%)
Rent (10%)
Royalties (7.5%)
Spotlight UI: Access the calculator anywhere with Cmd+Shift+P (Mac) or Ctrl+Shift+P (Windows).
Context Menu: Right-click any number on a webpage to calculate instantly.
Audit Trail: Keeps a history of your last 20 calculations locally on your device.
Privacy First: No cloud sync, no tracking, and no external data storage.
Keyboard Shortcuts:

Open Calculator: Cmd+Shift+P (or Ctrl+Shift+P)
Navigate: Arrow keys
Select: Enter
Close: Escape
Designed specifically to help auditors and accountants save time and reduce errors.