Tax companies, products & suppliers
Tax calculation, filing and research as the product, not bookkeeping or audit. Jobs: computation; filing support; tax research in the product.
What is Tax?
Tax calculation, filing and research as the product, not bookkeeping or audit. Jobs: computation; filing support; tax research in the product.
What problems does it solve?
Tax still depends on specialists re-keying from the books.
Typical business use cases
- Computation
- Filing support
- Tax research in the product
Important capabilities
- Jurisdictions
- Return types
- Workpapers
What buyers should evaluate
- Who signs the return
- Jurisdictions covered
- Training on taxpayer data
Risks and governance considerations
A suggested position filed without a named tax owner.
Procurement checklist
- Signer
- Jurisdictions
- Workpapers
Relevant AI Trustmark assurance
AI Trustmark independent findings appear only when an assessment or certificate exists. Category membership does not imply verification.
Companies and providers
Claimed suppliers appear first so buyers can start with listings the company has taken ownership of. Payment does not buy this order.
april’s AI-powered tax engine helps platforms offer tax filing, tax planning, and tax estimation tools. Integrate white-label tax solutions to deliver truly holistic financial serv
Black Ore's Tax Autopilot automates tax preparation for CPA firms with 99% accuracy and 98% time savings. Black Ore is recorded in United States. Black Ore publishes product inform
Blue dot publishes VATBox as named AI products. Blue dot is used for Tax work. Blue dot is recorded in Israel. Blue dot publishes product information at bluedotcorp.com. Blue dot i
Get defensible tax research answers in seconds with Blue J's AI-powered platform. Blue J is used for Legal research work. Blue J is recorded in Toronto, Canada. Blue J publishes pr
Filed reads source documents and compares them against the return to catch what tax software diagnostics miss. Filed publishes Filed AI Tax Prep as named AI products. Filed is reco
Instead is an AI agent for tax research, planning, filing, and defense. Organize documents, find savings, and file returns in one place. Instead publishes Instead Entity Agent as n
Kintsugi publishes Kintsugi as a named AI product. Kintsugi is used for Tax work. Kintsugi is recorded in United States. Kintsugi publishes product information at trykintsugi.com.
Sphere publishes Sphere as a named AI product. Sphere publishes product information at getsphere.com. Sphere is used for Tax work. Sphere is recorded in United States.
Automate tax preparation, tax research, get cited tax answers in seconds, draft memos, analyze tax documents, and manage clients in one place. TaxGPT is recorded in United States.
taxy.io publishes taxy.io as a named AI product.
Products
Claimed products appear first. Ranking packs and payment do not change this list.
- april Tax Platform· april
- Blue J· Blue J
- Filed AI Tax Prep· Filed
- Instead Entity Agent· Instead
- Kintsugi· Kintsugi
- Sphere· Sphere
- Tax Autopilot· Black Ore
- TaxGPT· TaxGPT
- taxy.io· taxy.io
- VATBox· Blue dot
Related categories
Relevant procurement and assurance guides
Frequently asked questions
What is Tax?
Tax calculation, filing and research as the product, not bookkeeping or audit. Jobs: computation; filing support; tax research in the product.
What should not be listed as Tax?
Products whose buyer job is bookkeeping, audit, or legal research. Those belong on their own category page so search queries are not split.
Has AI Trustmark independently assessed every Tax supplier?
No. A category listing is descriptive. Independent assessment is shown only on company or product pages that carry Trustmark evidence.
What model or provider changes should a buyer insist on being told about?
Material change usually includes a new model family, new region, new subprocessor, new write-capable tool, or a change that affects logging, privacy or human oversight. Those changes should trigger evidence refresh rather than a silent release.
How should buyers verify where AI customer data is processed?
Ask for the named processing locations, cloud regions and any subprocessors that see prompts, files or outputs. A directory listing is not evidence of residency. Independent assessment records the locations that were in scope on the assessment date.
Does a TrustMark on one product cover the rest of the company?
No. Independent assessment is scoped to the named organisation and, where relevant, the named product. Category pages list suppliers as a topic label. They do not imply that every listed company has been assessed.
What incident-handling evidence is useful for AI suppliers?
Buyers should see how AI-specific failures are detected, contained and notified — including unsafe outputs, data leakage and unauthorised agent actions. An incident policy that never mentions models, prompts or tools is incomplete for this class of product.
What security testing evidence should buyers request for an AI product?
Ask what was tested, against which version, whether prompt-injection, data-exfiltration and tenant isolation were in scope, and where failed prompts were stored. A generic ISO certificate or a vendor scanner screenshot is not by itself an AI TrustMark assessment.