Muhasib – Reverse % & VAT Calculator icon

Muhasib – Reverse % & VAT Calculator

by Basheer Chamoun · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 21 Oct 2026

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

Users
15
+4 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#173K
#144K among extensions
Version
1.0.4
updated 31 Aug 2026

Users

monthly, 9 months
0815Feb 2026Jul 2026Oct 2026
Latest, 21 Oct 2026: 15 usersMove the mouse over the chart for any month

Ratings count

monthly, 9 months
001Feb 2026Jul 2026Oct 2026
Latest, 21 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Muhasib – Reverse % & VAT Calculator

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.

Growth

WindowUsersChangeRatingsRating
7 days+1+7.1%00.00
30 days+4+36.4%00.00
6 months+8+114.3%00.00

Version history

5 versions recorded
1.0.431 Aug 2026
1.0.316 Feb 2026
1.0.211 Feb 2026
1.0.16 Feb 2026
1.0.03 Feb 2026

Details

Category
Tools
First seen
3 Feb 2026
Size
86 KB
Languages
en-US
Pricing
Free
Privacy policy
muhasib.arzs.app
Extension ID
lohlgafbemecgafoaafljijjlfcpenke

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
activeTabcontextMenusstoragescriptingcookies
Site access
https://muhasib.arzs.app/*https://eservices.finance.gov.lb/*http://localhost:8000/*

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