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.
Wa Sales Tax by Washington State Department of Revenue






246+ iOS apps curated and reviewed
Every iPhone needs a few good tax free sales apps. We benchmark 246+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | Aug 2026 | |
| 2 | Free | 4.8★ (5.4K) | Yes | Yes | Aug 2026 | |
| 3 | Free | 3.9★ (13) | No | No | May 2026 | |
| 4 | Free | 4.8★ (2.5K) | Yes | Yes | Aug 2026 | |
| 5 | Free | 3.7★ (3) | No | No | May 2026 | |
| 6 | Free | — | Yes | No | May 2026 | |
| 7 | Free | 1.0★ (4) | Yes | No | May 2026 | |
| 8 | Free | 5.0★ (5) | No | Yes | Jul 2026 |






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.




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.



Easily calculate the final cost of your purchases with this intuitive tool. It features dedicated buttons for discounts and allows you to adjust tax rates. Values and expressions can be conveniently copied for further use.


Calculate the final price of purchases after applying discounts, coupons, rebates, and multiple sales taxes. It also handles reverse calculations to find pre-tax prices and includes a tip calculator and bill splitting functionality.


Instantly calculate sales tax and discounts in real time. This utility displays price, tax rates, subtotals, and final totals, with the ability to work backward from a final price to find the original amount.




Simplify tax-free shopping across Europe. Easily issue forms in-store, digitize existing ones, and track your refund status. Get direct customer support and helpful shopping tips.


Discover property tax sales, including liens and deeds, visualized on an interactive map. Track parcels, stay updated on deadlines, and access detailed county-level information to make informed investment decisions.


Easily prepare and file your federal and state tax returns from any device. Automatically populate up to 80 fields by uploading last year's return. Get expert help, track your refund, and maximize your refund with personalized insights.


This app provides tools for tax sale investing, offering extensive research on auctions nationwide. Users can search, view parcel data, and capture notes to make informed decisions in tax lien, tax deed, and redeemable deed markets.


Calculate sales tax based on your location and apply multiple discounts to find the final product price. Access a global library of tax rates by country, state, and city. Includes a basic calculator and formula input for quick calculations.


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.


Calculate US sales tax, estimate global tax-free refunds, and get AI-powered tax optimization tips. This app helps you save money on shopping and prepare for tax season.


Quickly calculate Canadian sales tax for any province or territory. This app is useful for consumers to find total costs before purchasing and for professionals needing to determine pre- or post-tax amounts.


Easily calculate sales tax and discounts across the United States. Get real-time state and city tax rates, reverse-calculate pre-tax prices, and manage manual discounts for accurate financial tracking.


Easily file your federal and state tax returns with expert assistance. Upload documents quickly, get real-time updates, and ensure accuracy for your maximum refund. Offers a free option for simple returns.


Connect with friends and family globally through private messaging and high-quality calls. Share moments, documents, and stay in touch across devices, even on slow connections. Your conversations are secured with end-to-end encryption.


Quickly calculate final sale prices, including discounts and taxes. This universal app supports iOS Today Extension, customizable colors, and accessibility features for all screen sizes and orientations.


Easily calculate discounted prices with multiple discount options and sales tax. Quickly switch between percentage and dollar amount discounts. Offers a clean interface and customizable themes.


Shop globally and get money back on your purchases. This app helps you find stores, track your tax refunds instantly, and manage the entire tax-free shopping process from your phone. It simplifies form filling and locates convenient refund points.