9 Best Sales Tax Software of 2026

This list is for online stores and SaaS companies choosing a tool to calculate, collect and file US sales tax, and for anyone comparing per-transaction, per-filing and per-state pricing. We compared documented features and published prices; every verified price was copied from the vendor's own pricing page in November 2026. Rankozo weights value at 40%, features at 35% and ease of use at 25%, so tools with low entry costs and clear filing fees rank above tools that need a sales call.

1. 01Top value

   

   Kintsugi

   8.9/10

   Sales tax automation with free nexus monitoring and a Starter plan that charges per registration or filing instead of per transaction.

   Price

   $75per action (registration, filing, amendment)

   Free plan for exposure monitoring; Starter at $75 per action (registration, filing or amended return) in the US and Canada

   “Starter is priced at $75 per action in the US and Canada.” Quoted from the pricing page, November 12, 2026.

   Free plan

   Yes

   Value (40%)

   9.2

   Features (35%)

   8.6

   Ease of use (25%)

   8.8

   Best forUS ecommerce and SaaS sellers who want filing done for them without a subscription

   Kintsugi ranks first on Rankozo because its pricing tracks the work a small seller actually needs. Exposure monitoring, nexus alerts, product categorization and CSV imports are free with no credit card, so you can watch every state before you owe anything. Once you cross a threshold, Starter charges $75 per action, where an action is a registration, a filing, a back filing, an amended return or a deregistration. There are no onboarding or transaction fees, so a Shopify store with heavy order volume pays the same as one with a few hundred orders. Starter also adds autoregister, filing autopilot where states allow it, and Kintsugi Mail for state notices. The limits show up as you grow: real-time calculation inside QuickBooks, NetSuite or Dynamics 365 and notice handling start on Scale, and VAT and GST outside the US and Canada need Scale or Premium, both quoted on request. A seller filing quarterly in five states pays $1,500 a year in filing actions on Starter.

   • ✓No onboarding fees and no transaction fees, per the pricing page
   • ✓Free plan needs no credit card and keeps monitoring every state
   • ✓Month-to-month contracts with no built-in annual price increases

   • ✕Real-time tax engine integrations for QuickBooks and NetSuite start on Scale
   • ✕EU, UK and other VAT and GST coverage is not in Starter
   • ✕Scale and Premium flat monthly prices are quoted on request

   Free plan:

   Yes, exposure monitoring and alerts

   Starter price:

   $75 per action

   Transaction fees:

   None

   Contract:

   Month to month

   Bottom line: Kintsugi is the best choice for sellers filing in a handful of states because Starter costs $75 per action with no transaction fees. Move to a subscription tool once filings run into the dozens each month.

   Visit trykintsugi.com ↗

2. 02

   

   Stripe Tax

   8.8/10

   Stripe's tax engine for sales tax, VAT and GST, sold as a pay-per-transaction Basic plan or a Complete subscription with filings.

   Price

   Customper month, plus 0.5% per transaction where registered

   Tax Basic: no recurring fee, 0.5% per transaction where you are registered; Tax Complete is a monthly subscription on a 1-year contract

   “0.5% per transaction, where you’re registered to collect taxes” Quoted from the pricing page, November 12, 2026.

   Free plan

   No

   Value (40%)

   9.0

   Features (35%)

   8.4

   Ease of use (25%)

   9.2

   Best forBusinesses that already take payments through Stripe

   Stripe Tax is the simplest option on this list if Stripe already processes your payments. Tax Basic has no subscription: it charges 0.5% per transaction, and only on transactions in places where you are registered to collect, for sales made through Billing, Checkout, Invoicing and Payment Links. It calculates tax on 700+ product and service types, collects in 100+ countries and sends threshold alerts, so it doubles as a nexus monitor. What Tax Basic does not do is register or file. For that, Stripe sells Tax Complete, a monthly subscription on a 1-year contract with tiers set by registrations, transactions and filings per year; the entry tier includes 200 transactions a month and 4 filings a year. Stripe files directly in the US, Canada (federal simplified) and the EU non-Union OSS and uses partners elsewhere at partner pricing. The 0.5% fee is cheap on small orders but grows with revenue, which subscription tools such as TaxJar and TaxCloud do not.

   • ✓Tax Basic has no recurring fee, so a new seller pays only on taxed transactions
   • ✓Turned on from the Stripe Dashboard for Billing and Checkout without code
   • ✓Exports tax data as CSV and formats US and Canada reports for state filing

   • ✕Tax Basic does not file returns, so you file yourself or add Tax Complete
   • ✕Tax Complete requires a 1-year contract
   • ✕Filing outside the US, Canada and EU non-Union OSS runs through partners at partner pricing

   Tax Basic fee:

   0.5% per transaction where registered

   Recurring fee:

   None on Tax Basic

   Product types:

   700+

   Collection coverage:

   100+ countries

   Bottom line: Stripe Tax is the best choice for Stripe merchants because Tax Basic adds calculation for 0.5% per transaction with no recurring fee. Budget for Tax Complete or a separate filing service once you need returns filed.

   Visit stripe.com ↗

3. 03

   

   Numeral

   8.6/10

   A managed sales tax service that charges per return filed and per state registration, with free nexus monitoring.

   Price

   $75per return filed

   Free Monitoring plan; Professional at $75 per return filed plus a one-time $150 registration fee per state

   “Numeral charges a simple $75 per return filed plus a one-time $150 registration fee per state .” Quoted from the pricing page, November 12, 2026.

   Free plan

   Yes

   Value (40%)

   8.7

   Features (35%)

   8.4

   Ease of use (25%)

   8.6

   Best forSellers who want filings guaranteed on time without a monthly fee

   Numeral is a close match to Kintsugi on price model and a strong pick if you want a service team behind the software. The Monitoring plan is free and runs a nexus study once you connect your stores or billing platforms, then keeps watching physical and economic nexus and alerts you when you cross a threshold. Professional charges $75 per return filed and a one-time $150 per state registration, with no setup fee, no contract and no per-transaction overages. That plan covers registrations, filings and remittance in all US states, a virtual mailbox for tax mail, AI product classification and exemption certificate management, backed by a concierge team. Numeral's guarantee says it pays penalties and interest if a return is filed late. The trade-offs are the registration fee, which Kintsugi folds into its $75 action price, and that the tax engine API and coverage in 90+ countries sit in the custom Enterprise plan, so live checkout calculation comes from your platform on Professional.

   • ✓On-time filing guarantee: Numeral pays penalties and interest if it files late
   • ✓No setup or onboarding fees for standard US filings
   • ✓No per-transaction overage charges, per the FAQ

   • ✕Each new state adds a one-time $150 registration fee
   • ✕The tax engine and API are listed under the custom Enterprise plan
   • ✕Global coverage in 90+ countries is an Enterprise feature

   Filing fee:

   $75 per return

   Registration fee:

   $150 per state, one time

   Free plan:

   Yes, nexus monitoring

   Contract:

   No contract required

   Bottom line: Numeral is the best choice for sellers who want a filing guarantee because it charges $75 per return with no contract. Add $150 per state to your first-year budget for registrations.

   Visit numeral.com ↗

4. 04

   

   TaxJar

   8.6/10

   A sales tax compliance platform for calculations, reports and AutoFile filing, priced by monthly order volume.

   Price

   $39per month for 200 orders

   Starter from $39 per month for 200 orders with 2 AutoFile credits a year; Professional from $99 per month

   “2 AutoFile credits a year, additional credits $50 $39 / mo” Quoted from the pricing page, November 12, 2026.

   Free plan

   No

   Free trial

   30 days

   Value (40%)

   8.6

   Features (35%)

   8.5

   Ease of use (25%)

   8.8

   Best forMarketplace and multichannel sellers who want flat monthly pricing

   TaxJar prices by order volume rather than by state, which suits sellers with many small orders spread over a few channels. Starter costs $39 a month at the 200-order tier and is pitched at new businesses and marketplace sellers that mainly need reporting and filing, with up to 3 data import integrations and 2 AutoFile credits a year. Professional costs $99 a month at the same tier and raises that to 10 integrations, 4 AutoFile credits, API access with 10,000 calls a minute, phone support and a dedicated customer success manager. Both plans include economic nexus tracking and jurisdiction-level reports. The cost to watch is filing: each AutoFile credit beyond the included ones costs $50 on Starter and $55 on Professional, so a seller filing monthly in three states spends far more on credits than on the subscription. Flex fees soften peak seasons by bumping you up a tier for a single month. TaxJar says it serves more than 20,000 businesses.

   • ✓30-day free trial with no credit card required
   • ✓Starter includes 2 AutoFile credits a year; Professional includes 4
   • ✓Annual pricing saves 10% or more, per the pricing page

   • ✕Each filing beyond the included credits costs $50 on Starter and $55 on Professional
   • ✕Starter allows up to 3 data import integrations
   • ✕Phone support, the developer sandbox and the dedicated success manager are Professional features

   Starter:

   $39 per month, 200 orders

   Professional:

   $99 per month, 200 orders

   Extra AutoFile credit:

   $50 Starter, $55 Professional

   Free trial:

   30 days

   Bottom line: TaxJar is the best choice for multichannel sellers who want predictable pricing because Starter is $39 a month at 200 orders. Filing-heavy sellers should compare its $50 per extra AutoFile credit with per-filing tools.

   Visit taxjar.com ↗

5. 05

   

   Avalara

   8.4/10

   The AvaTax calculation engine and returns service, sold to businesses under $50M in revenue as Avalara Select with per-state pricing.

   Price

   $69per state per month

   Core Compliance + SST Services at $69 per state per month or $699 per state per year; Core Compliance at $79 per state per month with a 3-state minimum

   “Core Compliance + SST Services is $69/state/month ($699/state/year, 15% annual savings) with no state minimum.” Quoted from the pricing page, November 12, 2026.

   Free plan

   No

   Value (40%)

   7.8

   Features (35%)

   9.4

   Ease of use (25%)

   7.8

   Best forGrowing sellers with many integrations or SST-eligible remote sales

   Avalara now publishes prices for businesses under $50M in revenue through Avalara Select, and the plans are easier to model than order tiers. Both plans charge per state, per legal entity, and include AvaTax calculation across 12,000+ US jurisdictions, nexus tracking, notice management, exemption management and filing with unlimited returns and no per-return fees. Core Compliance costs $79 per state per month with a 3-state minimum, while Core Compliance + SST Services costs $69 per state per month, or $699 per state per year, with no state minimum. The SST plan matters for remote sellers: participating states fund calculation and filing in up to 25 states for qualifying sellers, and Avalara says you pay $0 for those states. Value scores lower here because per-state pricing climbs fast; a seller filing in ten non-SST states pays $690 a month. Avalara keeps its feature lead with 1,400+ signed partner integrations, though global VAT and multi-entity setups move to the Custom plan.

   • ✓Unlimited returns in each paid state, with no per-return fees
   • ✓SST plan has no state minimum and adds audit liaison support
   • ✓Avalara lists 1,400+ signed partner integrations

   • ✕Core Compliance has a 3-state minimum, so it starts at $237 a month
   • ✕Avalara Select is limited to businesses under $50M in revenue on a supported integration
   • ✕Global VAT, multi-entity management and premium support need the Custom plan

   Core + SST:

   $69 per state per month

   Core Compliance:

   $79 per state per month, 3-state minimum

   Annual price:

   $699 or $799 per state per year

   Jurisdictions:

   12,000+ in the US

   Bottom line: Avalara is the best choice for SST-eligible remote sellers because qualifying states can fund filing while other states cost $69 per state per month. Sellers filing in many non-SST states will find per-filing tools cheaper.

   Visit avalara.com ↗

6. 06

   

   Anrok

   8.3/10

   A sales tax and VAT platform for software and ecommerce companies that charges a flat fee per registered market.

   Price

   $100per market per month

   Starter at $100 per market per month; Custom plan quoted on transaction volume

   “Every company pays $100 per market per month on the Starter plan.” Quoted from the pricing page, November 12, 2026.

   Free plan

   No

   Value (40%)

   7.6

   Features (35%)

   8.9

   Ease of use (25%)

   8.4

   Best forSaaS and AI companies registered in US states and abroad

   Anrok is built for software companies, and its pricing reflects that: Starter is $100 per market per month, where a market is any jurisdiction you are registered and filing in. Each US state is one market, the EU One Stop Shop is one market, Canada's GST/HST is one, and BC, Manitoba, Saskatchewan and Quebec each count separately. The fee covers exposure monitoring, real-time calculation, filing and remittance, exemption certificates and physical nexus tracking, with no per-filing charges. That makes costs easy to forecast, and a SaaS company registered in four US states and the EU pays $500 a month. For a seller in a single state the flat fee costs more than per-action tools like Kintsugi, which is why Anrok scores lower on value. Anrok also notes that Starter sellers with high transaction volumes may face additional fees. The Custom plan adds e-invoicing, multi-entity management, a reconciliation tool and audit-ready reporting, priced on volume. Notion, Webflow and Synthesia appear as customers.

   • ✓One flat rate per market with no per-filing charges
   • ✓Covers US states, EU OSS, Canada and other VAT and GST markets
   • ✓Integrations include Stripe, Shopify, NetSuite and QuickBooks

   • ✕Starter sellers with high transaction volumes may pay additional fees
   • ✕Each provincial tax in Canada counts as a separate market
   • ✕E-invoicing, multi-entity and audit-ready reporting need the Custom plan

   Starter:

   $100 per market per month

   Market:

   Each jurisdiction where you register and file

   Per-filing fees:

   None

   Custom plan:

   Priced on transaction volume

   Bottom line: Anrok is the best choice for SaaS companies selling across borders because one $100 per market fee covers US states and VAT markets alike. Single-state sellers will pay less elsewhere.

   Visit anrok.com ↗

7. 07

   

   TaxCloud

   8.2/10

   A sales tax reporting, calculation and filing service and SST Certified Service Provider, priced by order tier plus a filing plan.

   Price

   $16.58per month ($199 per year), filing extra

   Starter from $199 per year billed yearly; filing plans from $39 per month or as low as $20 per filing

   “$199 / Year Billed yearly” Quoted from the pricing page, November 12, 2026.

   Free plan

   No

   Free trial

   30 days

   Value (40%)

   8.8

   Features (35%)

   7.7

   Ease of use (25%)

   8.0

   Best forShopify and Stripe sellers who want the lowest subscription price

   TaxCloud is the cheapest way on this list to get return-ready reports and nexus monitoring. Starter is sold by order tier and starts at $199 a year billed yearly for Shopify and Stripe sellers, with reports for all states, nexus monitoring across all 50 states, phone and email support and access to the Streamlined Sales Tax program. As a Certified Service Provider in all 24 SST member states, TaxCloud offers free sales tax services in those states to qualifying sellers. Filing is priced separately: you choose a filing subscription starting at $39 a month or pay as you go, with plans as low as $20 per filing, and Colorado and Louisiana filings carry a surcharge. Premium adds real-time calculation, ERP integrations including NetSuite and QuickBooks, and API access, which most SaaS sellers billing outside Stripe will need. Registration, audit support and notice handling are add-on services, so the real price depends on how much you hand off.

   • ✓Lowest entry subscription on this list at $199 a year
   • ✓30-day free trial
   • ✓Free sales tax services in the 24 SST member states for qualifying sellers

   • ✕Filing is a separate plan, starting at $39 a month
   • ✕Real-time calculation and API access require Premium
   • ✕Colorado and Louisiana filings carry a surcharge

   Starter:

   $199 per year, billed yearly

   Filing plans:

   From $39 per month

   Per-filing:

   As low as $20

   Free trial:

   30 days

   Bottom line: TaxCloud is the best choice for budget-conscious Shopify and Stripe sellers because Starter costs $199 a year. Add a filing plan from $39 a month if you want returns filed for you.

   Visit taxcloud.com ↗

8. 08

   

   Zamp

   8.1/10

   A fully managed sales tax service that pairs software with former state auditors who register, file and answer notices for you.

   Price

   Check price

   See vendor pricing (USD check pending)

   US price check pending. Vendor pricing page

   Free plan

   No

   Value (40%)

   7.4

   Features (35%)

   8.7

   Ease of use (25%)

   8.5

   Best forTeams that want sales tax handled by a dedicated service team

   Zamp sells sales tax as a managed service more than as software, and it is the pick here for teams that never want to log in to a state portal. The U.S. plan covers rooftop-accurate calculation, nexus tracking with alerts at 80% of a threshold, automated registrations, filing with direct ACH remittance, early-filing discount capture and end-to-end notice management with daily state portal monitoring. Zamp says its team includes former state auditors and senior tax specialists. The U.S. + Canada plan adds GST, HST, PST and QST calculation, registrations and filing. A free tier offers a one-time nexus analysis, a product taxability review, a 30-minute session with a senior tax professional and a 30-day API sandbox. The catch for a price-focused list is that Zamp does not publish its paid prices: you get one quote on a call, with no per-transaction fees. We could not verify a USD price, so it scores lowest on value among the managed services.

   • ✓Free tier includes a one-time nexus analysis and a 30-minute expert session
   • ✓No per-transaction fees, per the pricing page
   • ✓30+ integrations including Shopify, NetSuite, QuickBooks Online and Stripe

   • ✕Paid prices are quoted on a call rather than published
   • ✕The free tier is a one-time assessment, not ongoing monitoring
   • ✕Canada coverage needs the higher U.S. + Canada plan

   Free tier:

   One-time nexus analysis and API sandbox

   Paid plans:

   U.S. and U.S. + Canada

   Transaction fees:

   None

   Integrations:

   30+

   Bottom line: Zamp is the best choice for teams that want a hands-off service because former state auditors handle registrations, filings and notices. Expect a sales call before you see a price.

   Visit zamp.com ↗

9. 09

   

   Quaderno

   7.9/10

   Tax calculation, invoicing and reporting for online sellers, priced by monthly transactions with unlimited jurisdictions.

   Price

   Check price

   See vendor pricing (USD check pending)

   US price check pending. Vendor pricing page

   Free plan

   No

   Free trial

   7 days

   Value (40%)

   7.8

   Features (35%)

   7.6

   Ease of use (25%)

   8.4

   Best forCreators and small online businesses selling digital products worldwide

   Quaderno suits small sellers of digital products who deal with US sales tax and foreign VAT at the same time. It calculates sales tax, VAT and GST at checkout, alerts you when you near a threshold, sends branded tax-compliant invoices automatically and produces reports by state and country that you can file from. Plans are set by monthly transactions: Hobby covers 25 a month with 1 user, 1 jurisdiction and 1 integration, while Startup (250), Business (1,000) and Growth (2,500) include unlimited users, jurisdictions and integrations. A transaction is any sale, refund or purchase recorded in the app, and API calls are capped at 10 times your transactions. Filing is not in the plans; Quaderno offers to register and file for you as a separate service. The pricing page did not show a currency from our location, so the price check is pending. For a US seller that mainly needs filing, Kintsugi or Numeral fit better.

   • ✓Every plan above Hobby includes unlimited users, jurisdictions and integrations
   • ✓7-day free trial with no credit card required
   • ✓Automatic customer invoices are part of every plan

   • ✕Filing and registration are add-on services, not included in the plans
   • ✕Hobby is limited to 25 transactions a month, 1 user and 1 jurisdiction
   • ✕USD prices could not be confirmed from our location

   Plans:

   Hobby, Startup, Business, Growth, Enterprise

   Transactions:

   25 to 2,500 a month by plan

   API calls:

   10 times the plan's transactions

   Free trial:

   7 days

   Bottom line: Quaderno is the best choice for creators selling digital products abroad because every plan pairs tax calculation with automatic invoices. US sellers who need filing should look higher on this list.

   Visit quaderno.io ↗

Questions or corrections: editorial@rankozo.comSee our disclosure. Prices change; confirm on the vendor page before buying.