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CLUSTER TAX-CALCULATOR-SALES · 16 ENTRIES · EARLIEST ENTRY 2010-11-19

Tax-inclusive price calculators

This cluster consists of tax-inclusive price calculators covering sales tax, VAT, GST, and related computations for various regions, often with reverse-calculation or discount features. Dated entries span from November 2010 to July 2025, appearing sporadically with a long pause between mid-2016 and mid-2021 followed by a few recent additions. The traction leaders, calk-au-widgets, Discount Calculator Saver Calc, and Sales Tax Calculator >, all show zero stars.

Entry timeline

ENTRY TIMELINE

NOV 2010: 1FEB 2011: 1SEP 2011: 1OCT 2011: 1JUN 2012: 1NOV 2013: 1SEP 2014: 1JUN 2015: 1JAN 2016: 1JUL 2016: 1AUG 2021: 1JAN 2024: 1JUL 2024: 1JUL 2025: 1AUG 2026: 2
NOV 2010AUG 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 1 ai-built · 4 hand-coded · 11 unlabelled

Operator · 1 hobby · 2 indie · 5 commercial · 1 enterprise · 1 open source · 6 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 16 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01Total Plus:Shopping Calculator0★19 dayslivecommercialShopping calculator app that computes totals with tax and discounts, supports quantity or weight, and lets shoppers save lists for comparing prices.
  2. 02Discount Calculator Saver Calc0★2 molivecommercialMobile calculator that computes shopping discounts, sales tax, credit card payoff, layaway costs, and depreciation to help shoppers estimate real savings before buying.
  3. 03calk-au-widgets0★1 moliveindieEmbeddable calculator widgets that compute income tax, GST, stamp duty, mortgage, and superannuation figures using continuously updated government rates.
  4. 04Sales Tax Calculator >0★2 molivecommercialMobile app that calculates final prices after discounts, coupons, sales taxes, tips, and bill splitting, including reverse calculations for shoppers.
  5. 05Tax Me Pro0★6 yrabandonedlivehand-codedcommercialMobile sales tax calculator that lets users save itemized lists, compute reverse tax from totals, and store multiple tax profiles.
  6. 06Wa Sales Tax0★1 moliveenterpriseMobile app that looks up current Washington state sales tax rates by location and calculates total charges including sales tax.
  7. 07UX-Method-Finder1★7 mostaleliveai-builthobbyA web calculator that computes total price including local taxes and applies discounts for stores listed on a government authorization registry.
  8. 08HK Salaries Tax Calculator0★6 mostaleliveApp that calculates Hong Kong salaries, property, and profits taxes and recommends tax-saving options for individuals and couples.
  9. 09TAX calculator - iTaxCalc0★23 daysliveUtility app that computes tax-inclusive price from base price and tax rates, allowing adjustments for different percentages.
  10. 10VAT Calculator0★1 yrabandonedliveopen sourceApp that calculates value-added tax for any country, adding or extracting VAT from amounts.
  11. 11ZipTax: State Tax Calculator0★1 yrabandonedliveApp that calculates total state tax burdens from income, sales, and property taxes to help users compare locations.
  12. 12Sales Tax Canada Calculator +0★1 yrabandonedliveindieMobile calculator app that computes Canadian sales taxes for any province or territory, including reverse calculations and tax-excluded totals.
  13. 13Sales Tax Calculator - Tax Me0★2 yrabandonedlivecommercialSales tax calculator app that allows users to compute taxes with saved rates and a built-in arithmetic calculator.
  14. 14Sales Tax - Calculator0★11 yrabandonedlivehand-codedSimple sales tax calculator that determines purchase cost with adjustable tax rate and discount buttons.
  15. 15A Sales Tax Calculator0★9 yrabandonedlivehand-codedSales tax calculator app that computes price, tax, and totals in real time as users enter values.
  16. 16Tax Calculation 2024 Quebec and Canada with reverse calculation | Finwise0★unknownlivehand-codedWeb app for calculating Canadian sales taxes like GST, QST, and HST with reverse tax and Excel export.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.