Finance AI Index
Index Vendors › TaxJar · September 2026 Edition
3 categories · Ranked

TaxJar

145Judge labels
16First choices
45Negative labels
12 of 12Models named it
3Categories
September 2026 Edition. Every number here is derived from the raw labels under vendor table vv2026-09.2, every buyer segment counted.
Best standing
29% in Sales tax automation for small business buyers
Rank 18 of 108 in the mid-market standing
0 of 12 models made it the first choice on the direct prompt; 50% of its 8 labels there were negative.
By buyer segmentRead the same way at every buyer size.
In global e-invoicing compl · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named TaxJar for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
CategoryFunctionShareRankNegative rateLabelsQuadrant
Global e-invoicing complianceTax and compliance2%18 of 10850%8under 10 labels · led by Avalara at 28%
Sales tax automationTax and compliance0%8 of 3827%48criticized challenger
Corporate tax provisionTax and compliance0%96 of 98100%1under 10 labels · led by Thomson Reuters ONESOURCE Tax Provision at 26%

Movement

This is the first edition on this tier, so no move can be computed for TaxJar yet. From the next edition this section shows, per buyer segment, whether its share moved by more than the measured noise floor.

By model

How each model treated TaxJar across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.
ModelFirst choiceAlternativeMentionNegativeLabels
Claude Haiku 4.500213
GPT-5.4 mini03003
Gemini 3.5 Flash01056
Perplexity Sonar03115
Grok 4.1 Fast03216
Mistral Small02204
DeepSeek V4 Flash03047
Llama 4 Maverick11103
Qwen 3.7 Flash11024
Kimi K203025
GLM 4.7 FlashX04116
MiniMax M2.504015

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct23 labels6
Paraphrase37 labels5
Comparative28 labels10not counted in share
Budget-constrained23 labels2
Scale-constrained15 labels3
Negative19 labelsNone
First choiceAlternativeMentionNegative145 labels in all, every segment counted; 16 of the 26 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Choose TaxJar if you run a standard online store (Shopify/WooCommerce) and want simplicity.” Qwen 3.7 Flash · Sales tax automation · comparative prompt · first choice
“would be Sovos VAT Reporting, TaxJar, or Commenda. These software options are highly rated” Llama 4 Maverick · Global e-invoicing compl · paraphrase prompt · first choice
“Works well for mid-size teams wanting hands-on VAT determination and rate guidance tied to daily transaction flows.” MiniMax M2.5 · Global e-invoicing compl · paraphrase prompt · alternative
“Choose TaxJar if you're a growing e-commerce business or SaaS startup that values predictable pricing” Kimi K2 · Sales tax automation · comparative prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“Avoid TaxJar (as of now): ... their recent 2026 price hikes ... make them a poor choice for companies with *strictly* limited budgets” Qwen 3.7 Flash · Sales tax automation · budget prompt · hard negative
“Multiple red flags from user reports: Accuracy issues... Poor customer support” Kimi K2 · Sales tax automation · negative prompt · hard negative
“they do not file corporate income taxes” Gemini 3.5 Flash · Corporate tax provision · paraphrase prompt · hard negative
“they can sometimes lack the deep enterprise-grade notice-resolution or exemption certificate management needed at the 500-employee scale” Gemini 3.5 Flash · Sales tax automation · scale prompt · soft negative

Named alongside

The products named in the same answers as TaxJar, over the 145 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and TaxJar was named but was not.
ProductSame answerTook the first choice insteadHead to head
Avalara AvaTax108 of 14535Not in the top three
Vertex77 of 14511Not in the top three
TaxCloud70 of 14518Not in the top three
Anrok51 of 1453Not in the top three
Sovos47 of 1454Not in the top three
Stripe Tax41 of 1450Not in the top three
Zamp35 of 1454Not in the top three
Quaderno29 of 1451Not in the top three
Numeral24 of 1450Not in the top three
Kintsugi23 of 1452Not in the top three
A head-to-head page exists where both products are in a category's top three. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named TaxJar. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, four of the twelve in this edition, so these counts come from 124 of the 145 answers that named TaxJar and are not a share of its labels.

Domains cited

taxcloud.com84
learn.g2.com73
zamp.com72
avalara.com62
galvix.com59
taxjar.comYour site54
techrepublic.com50
guideflow.com49
taxwire.com46
quaderno.io39

534 of the 588 domain citations in answers naming TaxJar came from somebody else's page.

Pages cited

Pages are listed as the models cited them.

Names read as TaxJar

What the judge wrote, as written, with how often. The vendor table decides that these count as TaxJar; a claim can dispute any of them.
TaxJar (Stripe) 2TaxJar / Paddle 1
Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when TaxJar's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as TaxJar, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

It does not get any change to labels, shares or verdicts, any preview, or any say over which quotes appear. A verification link goes to your work email; an address at taxjar.com is approved on the spot, any other address is reviewed by hand.

Your name and company appear on the claimed page, or the company alone if you ask below. A title and a LinkedIn address appear there too if you give them, and are left off if you do not. Your email address is never published.