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Open research with text or a document.
Evidence-led tax research for Türkiye
You can't protect your rightsif you don't know them.
Review the legal basis, scope, and verification status before relying on an outcome.
Source-linked outputs Official source visibility No invented case law
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Product architecture
One disciplined path from question to report.
HBV is not a standalone chatbot. It frames your question, verifies sources, deepens when needed, and moves into structured output.
Understand
Separate facts, concepts, and the scope of the inquiry.
Verify
Review legislation, case law, and official sources together.
Deepen
Surface source relationships, exceptions, and calculation needs.
Report
Turn verified work into a professional export.
Layered answers
Understand first.
Then check the basis.
HBV does not bury the answer in a single paragraph. From a plain summary to official source links, every layer opens in a traceable form.
Layered answerSTRUCTURE PREVIEW · NOT LEGAL ADVICE
Submit your question via Ask HBV on the homepage; layers open here.
In brief
A concise orientation
After you ask a question, this layer states the short outcome in plain language before the supporting detail.
Waiting for a research question
Professional workspace
Turn verified research
into a structured report.
HBV produces a Rights & Action Report or Professional Tax Analysis Report from verified analysis. Saved report history appears here when you are signed in.
CREATE REPORTACCESS STATUS
Rights & Action ReportOn demand · source status preserved
REPORTProfessional Tax Analysis ReportChecking permissions…
LOCKEDSaved report historyNo saved reports yet
EMPTYResearch space
From sources to decision,
without switching tools.
Focus on the question instead of scattered tabs. HBV is an integrated workspace that shows every result with its legal basis.
Search legislationSearch
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VERIFIED SOURCELEGISLATION
Statute and regulatory document search
Relevant articles, effective-date status, and official source links are drawn from source records.
Evidence flow
More than an answer.
A traceable decision path.
See the source.
Legislation, private rulings (özelge), and case law stay on separate layers.
Understand the basis.
Each record’s link to the question and its verification status stay explicit.
Weigh the precedent.
A verified decision is read from its source card — no invented docket.
Follow the result.
Answer and report come from the same evidence chain.
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Source layers stay visible.
Trust is not a feature
How the system works.
Source visibility
Does not hide what the result relies on; makes the evidence chain visible.
Effective-date check
Shows record currency as a separate evidence status from the conclusion.
Official source access
When a verifiable record exists, routes you to the official source address.
Analysis that knows its limits
Does not invent certainty without sufficient evidence; explains ambiguity and missing information.
Pricing
Usage-based plans. Same evidence standard.
Five plans, from free discovery to an enterprise contract. Payment is not open yet; cards are informational.
Free
Discovery and first steps
₺0
- Ask HBV — starter access
- Case law research — starter access
- Legislation and source transparency
- Document analysis — starter
Individual
Individual taxpayers and advisors
₺999/ mo
9,999 ₺ / yr · 17% off
- Ask HBV — standard capacity
- Case law research
- Precedent finder
- Document analysis — standard
- Deep research workspace
- Personalised petition drafts
SM / SMMM
CPA and tax advisor offices
₺1,999/ mo
19,999 ₺ / yr · 17% off
- Ask HBV — extended capacity
- Case law research — extended
- Precedent finder
- Document analysis — extended
- Deadline and risk tracking
- Deep research workspace
YMM / Lawyer
Deep tax research
₺2,999/ mo
29,999 ₺ / yr · 17% off
- Ask HBV — priority capacity
- Case law research — priority
- Precedent finder
- Document analysis — priority
- Tasdik köşkü (attestation review) · Personalised petition drafts
- Deep research workspace
Enterprise
Enterprise contract and scale
₺4,999/ mo starting
₺49,999 / yr starting
Custom to your needs · Request a quote
- Ask HBV — organisation-wide
- Case law research — organisation-wide
- Precedent finder
- Document analysis — organisation-wide
- Contract-based customisation
- Deep research workspace
About
Tax research that is clearer,
traceable, and verifiable.
Our value comes not from a technology label but from source discipline, context, and auditable output.
What is HBV?
- A research workspace for Turkish tax legislation and Danıştay tax case law.
- It reviews the question in the context of the underlying facts.
- It keeps legal basis and official verification links visible.
- It turns findings into a traceable work product.
Why does it exist?
- To show source, scope, and currency in one place.
- To help taxpayers understand the basis for their next step.
- To separate uncertainty instead of manufacturing certainty.
- To move research from scattered tabs into one traceable flow.
How does it work?
- Write your question or add a document to the research context.
- Review legislation, private rulings (özelge), and case-law layers separately.
- See the short result, assessment, and legal basis together.
- Move to a deadline calculation or structured report when needed.
Principles
- Evidence before conclusion — ambiguity is shown clearly when sources are insufficient.
- Esas and karar numbers are never fabricated; case citations come only from verified records.
- Effective date and scope are marked as separate evidence status from the result.
- Processing stays on this device; data does not leave by default.
- For information purposes only; it does not constitute legal or professional accountancy advice or services.
Frequently asked questions
Scope and limits.
Answers reflect the current product scope; features not yet live are stated explicitly.
All questionsDoes the platform replace a lawyer?
No. Haklarını Bil Vergi provides information based on current tax legislation and loaded sources; it is not legal representation or agency services. For a definitive legal outcome, share your document and notification with your advisor.
Which legislation does it cover?
Priority is Turkish tax law: VUK, GVK, KVK, KDV Kanunu, 6183, İYUK, stamp duty, ÖTV, property tax, related statutes, and Danıştay tax case law. SGK and labour law are outside this product's scope.
How do I ask HBV a question?
Type your question in the Ask HBV panel or choose a suggested question. If you arrived from a legislation, case-law, or private ruling (özelge) page, the selected source context is carried into the research workspace.
How binding are court decisions?
Case law (içtihat) is generally not binding between parties; it shows how courts approach similar cases. The platform presents decisions with source cards and official verification links; esas and karar numbers are shown only from verified source records, never fabricated.
Is the deadline calculation definitive?
No. The deadline tool shows a general window based on the notification date. Special circumstances, public holidays, and the notification method may change the result, so verify the official notice and applicable deadline.
How is my data protected?
By design, processing runs on the local server and question text is not used for advertising. Data-processing principles and user rights are explained on the Privacy and KVKK pages.
What is the research workspace?
The research workspace keeps the question, concise answer, and verified sources in one local session. You can review relationships between legislation, case law, and private rulings (özelge) there.
How do paid plans work?
Plans differ by usage and document limits. Payment is not live yet, so the plan cards are informational and no payment is collected on this screen.
Which document formats can I upload?
You can upload PDF, DOCX, TXT, Markdown, and supported image formats. The document is converted to text first; OCR availability and plan limits may affect scanned documents.
How can I verify sources in an answer?
Official verification links are shown on legislation, private ruling (özelge), and case-law source cards when available. Decision identities come only from verified records; if the source record has no official link, the interface states that clearly.
What happens when there is not enough evidence?
HBV does not fill gaps by guessing. When loaded sources do not contain a verifiable basis, it says so and does not invent statutory provisions, decision numbers, or quotations.
Can I download my research as a report?
A report preview is prepared only after a verified research context and sources exist. Paid export remains locked until the complete entitlement and export flow has been verified.
Ground your tax decisions in sources.
Ask HBVGet in touch
Reach us for general questions, support, corporate partnership, and privacy requests.