The CBDT departmental examination rules 2026 replace the old 1998 framework for Income Tax Department ministerial staff, and they bring a genuinely notable first: an explicit ban on using AI tools during the exam. If you're a Tax Assistant, MTS, Notice Server, LDC, or Stenographer preparing for this year's departmental exam, here's the complete rulebook — eligibility, paper structure, pass marks, grace marks, unfair-means penalties, and the full syllabus.
Who Issued This and When It Applies
The Ministry of Finance, Department of Revenue, Central Board of Direct Taxes notified the Amended Departmental Examination Rules for Ministerial Staff, 2026, effective from the 2026 examination onwards. These replace the earlier 1998 rules, though provisions for candidates who partially qualified under the old rules are specifically carried over (more on this below).
Who's In Charge of Running the Exam
A Principal Commissioner or Commissioner of Income Tax, nominated by the Principal Chief Commissioner of Income Tax, serves as the In-charge of Examination for their Region/Charge. Their responsibilities include receiving applications, verifying and forwarding them electronically to the Directorate of Income Tax (HRD), arranging for subjective-paper answer sheets to reach the Directorate, submitting required statements, and managing the overall conduct of the exam and declaration of results.
The Directorate of Income Tax, HRD, acting on behalf of CBDT, is the overall Authority for the exam. The Additional Director General of Income-tax-2, HRD is the Competent Authority for disciplinary matters, and the Principal Director General of Income-tax, HRD, New Delhi serves as the Reviewing Authority for appeals.
Who's Eligible to Appear
Four categories of staff can appear in this Departmental Examination:
- Directly recruited Office Superintendents — for confirmation
- Tax Assistants (TA) — for promotion
- MTS, Notice Servers, and LDCs who have already qualified the Data Entry Skill Test — for promotion
- Stenographers Grade I and II — for eligibility to appear in the ITI Exam
SC/ST/PwBD candidates who've already fully qualified the exam (under either the old or new pattern) with relaxed standards can also retake it purely to improve their marks — subject to an overall ceiling of chances, covered next.
How Many Attempts You Get
A few important rules govern attempts:
- Chances used before the 2026 exam don't count toward your new maximum — you effectively start fresh under these rules
- Once you're permitted to appear, that counts as a chance used, whether or not you actually sit the exam — withdrawal isn't allowed after permission is granted
- There's no age limit for appearing in this exam
- If you've already qualified a paper, you generally can't re-appear in it — except SC/ST/PwBD candidates specifically retaking it for betterment after having fully qualified the whole exam
Betterment Chances for SC/ST/PwBD Candidates
If you're an SC/ST/PwBD candidate who has fully qualified the exam (old or new pattern, with relaxed standards), you can take further attempts specifically to improve your marks in individual papers — subject to an overall ceiling of 10 chances. This betterment option isn't available if you haven't fully qualified yet — partial qualification doesn't make you eligible for betterment attempts.
If you qualified under the Old Pattern with relaxed standards, you're only permitted to attempt the specific matching paper(s) under the new pattern, based on the official matching schedule.
The Five Papers
| Paper | Subject | Type | Marks | Duration |
|---|---|---|---|---|
| Paper I | Income Tax Law and Taxpayer Services | Objective, with Bare Acts & Rules | 100 | 2 hours |
| Paper II | Income Tax Computation | Objective, with Bare Acts & Rules | 100 | 2 hours |
| Paper III | Office Procedure | Objective, with FR/SR/GFR books | 100 | 2 hours |
| Paper IV | IT Applications & Operations | Objective, without books | 100 | 2 hours |
| Paper V | Rajbhasha Hindi | Subjective, without books | 100 | 2 hours |
A few exam-conduct specifics worth knowing:
- Negative marking: 1/8th of a mark is deducted for every incorrect answer in the objective papers
- Permitted items: no scientific calculator, mobile phone, or any other electronic gadget is allowed in the hall — a basic arithmetic calculator is permitted
- Hindi exemption: if you've already passed a Hindi paper at matriculation level or higher, or passed the "Pragya" exam of the Central Hindi Teaching Institute, you're exempt from the Rajbhasha Hindi paper, subject to verification by the In-charge of Examination
- Old-pattern credit carries over: if you qualified a paper under the 1998 rules, you're exempt from the corresponding paper under the new pattern, per the official matching schedule
Provisions for Candidates with Benchmark Disabilities
The rules set out specific accommodations:
- Candidates with blindness, locomotor disability (both arms affected), or cerebral palsy get scribe facility without needing to produce a separate certificate
- Other categories of Persons with Benchmark Disabilities need to submit a certificate confirming genuine difficulty writing, along with the scribe request
- There's flexibility to change your scribe/reader in emergencies, and you can use a different scribe for different papers — but only one scribe per paper
- Assistive devices like prosthetics, orthotics, and hearing aids are permitted, as specified in your medical certificate
- Compensatory time of at least 20 minutes per hour of the exam is given to candidates eligible for scribe assistance
Pass Marks and Rounding
The general pass mark is 45% per paper; for SC/ST/PwBD candidates, it's 40%. If you've secured 45% (or 40%, as applicable) or more in a paper in one attempt, you're exempted from re-appearing in that paper in future attempts. Fractional marks round in your favour past the halfway point — for example, 39¼ rounds down to 39, while 39½ and 39¾ both round up to 40.
Rajbhasha Hindi can be passed at any time, independent of your other papers, and a passing entry gets recorded in your service file once you clear it.
Grace Marks
A maximum of 5 grace marks total is available, applied as follows:
- Up to 2 marks per paper can be used specifically to grant exemption from re-appearing in that paper
- If you're already fully qualifying with grace marks applied in one paper, further grace marks aren't separately stacked on top for other papers in the same sitting
Treat grace marks as a narrow safety net for marginal misses, not something to plan your preparation around.
What Counts as Unfair Means — And the New AI Rule
This section is worth reading carefully, because the list of prohibited conduct is extensive and the penalties are serious:
- Procuring or leaking exam material
- Submitting fabricated documents
- Making false statements about your candidature or qualifications
- Any other irregularity or improper means connected to your candidature or exam result
- Possessing unauthorised papers, books, or notes in the exam hall
- Communicating with other candidates or exchanging items like calculators or chits
- Tampering with the IT systems used for the exam
- Carrying unauthorised electronic gadgets — mobile phones, smartwatches, Bluetooth devices, scientific calculators
- Misbehaving in the examination hall
- Attempting or abetting any of the above
- Forcibly or stealthily removing an answer sheet from the hall
And explicitly, for the first time in this rule set: "Use or attempted use of AI assist/Generative AI application/undisclosed LLM access/voice-relay through scribes." This is a direct, specific response to the AI era — it treats using ChatGPT-style tools, or routing answers through a scribe as an undisclosed AI relay, as a serious unfair-means violation, not a grey area.
Penalties for any of the above can include disqualification from that exam (with any papers already passed in that sitting declared void), being debarred from future exams either permanently or for a specified period, an adverse entry in your service record, and disciplinary action under CCS Rules — though disciplinary action only follows after the exam-related proceedings are finalised.
If You're Penalised: Your Right to Appeal
If the Competent Authority imposes a penalty, you can represent to the Principal Director General of Income-tax, HRD, New Delhi, within 30 days of receiving the punishment order. A further 30-day delay can be condoned if there's genuine reason. The Reviewing Authority's decision on your representation is final.
Revaluation, Answer Keys, and Objections
No revaluation or re-totaling is entertained for objective-type papers, under any circumstance. What you do get: the Question Paper, Provisional Answer Key, and your Recorded Response are published on the department's website, and there's a window during which you can submit representations against the provisional answer key online. No representations are accepted once that window closes. An Expert Committee constituted by the Directorate reviews objections before the final answer key is issued.
Applying for the Exam
A few procedural points to keep in mind:
- Apply to the In-charge of Examination in the region/charge where you're currently posted
- Applications open only after the previous year's results are declared
- Late applications are summarily rejected, without any correspondence entertained
- Exam centre changes generally aren't permitted, except in cases of transfer after you've applied, or for administrative reasons the Competent Authority accepts
- If you're transferred after applying, forward a copy of your original application along with your transfer order through the In-charge of Examination at your new posting
- Keep a photocopy of your submitted application — you're required to retain one
Results and What Delay Doesn't Get You
Once results are declared, marks are announced paper-wise, and the list of fully successful candidates goes to the Directorate within 15 days. Importantly: a delay in conducting the exam or declaring results creates no rightful claim to being considered for that year's promotion vacancies by being deemed eligible from 1 January of the vacancy year. No relaxation is granted to any category of employee on account of such delays — so don't count on administrative delays working in your favour for seniority or vacancy-year purposes.
The Full Syllabus, Paper by Paper
Paper I — Income Tax Law and Taxpayer Services Covers the Income Tax Act, 1961/2025 and related Rules, with specific emphasis on chapters covering Basis of Charge, Income of Other Persons Included in Total Income, Aggregation of Income, Set Off or Carry Forward of Losses, and Deductions/Rebates/Relief. Also covers Taxpayer Services and Digital Service Delivery — the Taxpayers Charter, personalised communication, digital platforms, and proactive service delivery tools like TRACES, 26AS, e-PAN, Prefilled ITR, ASK, and SEVOTTAM, plus grievance redressal systems like CPGRAM and E-Nivaran.
Paper II — Income Tax Computation Focuses on computing income across various heads, total income and tax payable, set-off calculations, exemption calculations, advance tax, interest calculations, and computing assessment orders, reassessment orders, and penalty orders, along with applicable tax rates.
Paper III — Office Procedure Covers the Fundamental Rules (definitions, service conditions, pay, leave including LTC/HTC, joining time), Supplementary Rules, CCS (CCA) Rules 1965, CCS Conduct Rules, the Rights of Persons with Disabilities (RPwD) Act 2016, and handling public procurement through GeM along with contract management.
Paper IV — IT Applications & Operations Tests your functional capability with departmental IT systems — ITBA Portal modules including ITR processing, rectification, recovery, and audit, plus email and video conferencing; HRMS within ITBA, including user roles and access control; the Insight application module, covering data handling, process flow, e-verification, and third-party reporting; and the ITD Information Security Policy, 2020.
Paper V — Rajbhasha Hindi Split into four parts: short translation from Hindi to English (20 marks), short translation from English to Hindi (20 marks), simple reading comprehension, and general official/departmental Hindi usage, including word meanings and correct official terminology.
What This Means for You
- Check which of the four eligibility categories applies to you before assuming you can appear
- If you partially qualified under the 1998 rules, your earlier progress is preserved through the matching-paper schedule — you're not starting from zero
- Budget your preparation time across all five papers rather than assuming any one is a formality, especially Paper III and Paper IV, which test procedural and IT-system knowledge that's easy to underestimate
- Take the AI-use prohibition seriously — this isn't a symbolic addition, it's listed alongside traditional unfair-means violations with the same disqualification and debarment consequences
- Keep your application photocopy and track the provisional answer key window closely, since objections aren't accepted once it closes
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