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Side Hustle Tax Calculator 2026

Chrome extension by quantcalc · Productivity · Tools

A Chrome extension in Productivity · Tools with 5 users, barely installed.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
5
Rating
not rated yet
Users, last 16 days
+1
Version
1.5.5
Updated in the store
2026-07-02
Published
2026-03-31
Manifest
V3
Browser access
1 permission

How it has moved

Users
+1 since 31.08
4-5 · 8 readings
  1. 2026-08-314
  2. 2026-09-025
  3. 2026-09-054
  4. 2026-09-065
  5. 2026-09-074
  6. 2026-09-085
  7. 2026-09-104
  8. 2026-09-155
Users
+1 since 31.08
4-5 · 8 readings
  1. 2026-08-314
  2. 2026-09-025
  3. 2026-09-054
  4. 2026-09-065
  5. 2026-09-074
  6. 2026-09-085
  7. 2026-09-104
  8. 2026-09-155

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

quantcalc publishes 10 listings we track, 36 users between them. Listed website: quantcalc.app.

  1. RMD Calculator 2026 quantcalc · Productivity · Tools · published 2026-04-04 6 users
  2. Monte Carlo Portfolio Stress Test quantcalc · Productivity · Tools · published 2026-04-05 4 users
  3. FIRE Calculator - Financial Independence quantcalc · Productivity · Tools · published 2026-04-04 4 users (last published figure)
Show 5 more from this publisher
  1. Retirement Savings Calculator 2026 quantcalc · Productivity · Tools · published 2026-04-01 3 users (last published figure)
  2. Monte Carlo Retirement Calculator quantcalc · Productivity · Tools · published 2026-05-27 3 users
  3. Freelancer Tax Estimator 2026 quantcalc · Productivity · Tools · published 2026-03-29 3 users
  4. Roth Conversion Calculator 2026 quantcalc · Productivity · Tools · published 2026-04-01 3 users
  5. Paycheck Tax Calculator 2026 quantcalc · Productivity · Tools · published 2026-03-31 3 users

Like this one

Listings the catalog judges closest in what they say they do.

  1. Freelancer Tax Estimator 2026 Describes nearly the same job, smaller audience 3 users
  2. CreatorSense Tax Mini Describes nearly the same job, smaller audience 3 users (last published figure)
  3. Canadian Tax Bracket Calculator Describes nearly the same job, smaller audience 3 users (last published figure)
  4. Paycheck Calculator Describes a similar job, smaller audience 44 users ★ 5.0
  5. NomadTaxCalc — US Capital Gains Estimator Describes a similar job audience not published

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.