Best Washington Sales Tax Apps

250+ iOS apps curated and reviewed

3.7 avg rating
19 free apps
Updated October 2026

Out of 250+ washington sales tax apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Washington Sales Tax Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Wa Sales TaxWa Sales TaxFree4.0β˜… (4)NoNoOct 2026
2Sales Tax Calc.Sales Tax Calc.Free1.0β˜… (1)YesNoAug 2026
3Sales Tax Calculator - Tax MeSales Tax Calculator - Tax MeFree4.8β˜… (5.4K)YesYesOct 2026
4Summalo: Sales Tax USA & CANSummalo: Sales Tax USA & CANFreeβ€”β€”NoOct 2026
5Sales Tax CheckerSales Tax CheckerFreeβ€”NoNoAug 2026
6A Sales Tax CalculatorA Sales Tax CalculatorFree3.7β˜… (3)NoNoMay 2026
7Sales Tax & Total CalculatorSales Tax & Total CalculatorFreeβ€”NoYesJun 2026
8MyBlock: Tax Docs & RefundMyBlock: Tax Docs & RefundFree4.6β˜… (58K)NoNoOct 2026

Top Picks for Washington Sales Tax

4.0😞(4 ratings)
Free
Wa Sales Tax screenshot 1
Wa Sales Tax screenshot 2
Wa Sales Tax screenshot 3
Wa Sales Tax screenshot 4
Wa Sales Tax screenshot 5
Wa Sales Tax screenshot 6

Quickly find current Washington state sales tax rates using your mobile device. Calculate total charges with tax, save and export location data for bookkeeping, and verify rates on the go.

What We Love

  • πŸ‘ Saves money on taxes
  • πŸ‘ Helpful for contractors/service techs
  • πŸ‘ Accurate for specific addresses
  • πŸ‘ Easy to use
  • πŸ‘ Time saver
  • πŸ‘ Good for rural addresses
  • πŸ‘ Calculates contract amounts with taxes
  • πŸ‘ Useful for business
  • πŸ‘ Keeps up with times
  • πŸ‘ Great for on-the-go use

Room to Improve

  • πŸ› Inaccurate location detection
  • πŸ› Incorrect tax rates
  • πŸ› App no longer supported/functioning
  • πŸ› Crashes frequently
  • πŸ› Frozen and won't open
  • πŸ› Slow performance
  • πŸ› Cannot see numbers without glasses
  • πŸ› Lacks categories of goods/services
  • πŸ› No state tax rate or local rate for county
  • πŸ› Keyboard won't go away
  • πŸ› Doesn't provide local taxes
  • πŸ› Cannot check previous years
  • πŸ› Location services not holding
  • πŸ› Search times out
  • πŸ› Buttons don't work
  • πŸ› No improvement in 2.0
  • πŸ› Less convenient format
  • πŸ› Smaller text
  • πŸ› No ability to change tax period
  • πŸ› Doesn't have all 2026 tax rates
  • πŸ› Not always accurate by cents
  • πŸ› Needs full address for accuracy
  • πŸ› App is pathetic
1.0(1 ratings)
FreeAds
Sales Tax Calc. screenshot 1
Sales Tax Calc. screenshot 2

Easily calculate sales tax with a simple and elegant interface. Input the original price and tax rate to instantly see the calculated tax and total cost. Features a custom keyboard and editable tax rates for convenience.

Sales Tax Calculator - Tax Me#3

Sales Tax Calculator - Tax Me by Tardent Apps Inc.

Mobile Shopping Price Calc App
Worth Considering
πŸ’° Finance
4.8😊(5.4K ratings)
FreeAdsIn-App Purchases
Sales Tax Calculator - Tax Me screenshot 1
Sales Tax Calculator - Tax Me screenshot 2
Sales Tax Calculator - Tax Me screenshot 3
Sales Tax Calculator - Tax Me screenshot 4

Easily calculate sales tax on purchases with this intuitive and accurate tool. Save multiple tax rates, perform arithmetic calculations, and support all currencies. An optional Pro version offers additional features like item logging and reverse tax calculation.

What We Love

  • πŸ’‘ Helpful for business/small sales
  • πŸš€ Quick and easy to use
  • πŸ‘ Accurate tax calculations
  • πŸ€‘ Free option available

Room to Improve

  • 🀬 Too many ads/commercials
  • πŸ› Occasional glitches and crashes
  • πŸ€” Limited functionality (e.g. no percentage sign)

More Washington Sales Tax apps to explore

FAQ about Washington Sales Tax

What are the best washington sales tax apps for iPhone?
Wa Sales Tax tops our washington sales tax apps ranking as of October 2026, with a 4.0-star average from 4 App Store ratings, and it's free to download.
Yes β€” 19 of the top washington sales tax apps we rank are free to download, including Wa Sales Tax and Sales Tax Calc..
Wa Sales Tax has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 250+ washington sales tax apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.