The SSC CGL Income Tax Officer Exam is conducted by the Staff Selection Commission as part of the Combined Graduate Level (CGL) Examination to recruit candidates for the prestigious post of Income Tax Officer under the Income Tax Department. This position falls under Group B (Gazetted) posts and offers excellent career growth, authority, and job security in the field of taxation and finance. The selection process includes multiple tiers—Tier I and Tier II computer-based examinations, followed by document verification.
The exam evaluates candidates on subjects such as general intelligence, quantitative aptitude, English comprehension, and general awareness. An Income Tax Officer is responsible for assessing tax returns, investigating tax evasion, conducting raids, and ensuring compliance with tax laws. Due to its reputation, attractive salary, and power, this post is highly sought after, making the exam competitive and requiring dedicated preparation.
SSC CGL Income Tax Officer: Overview Table
| Feature | Details |
| Organization | Staff Selection Commission (SSC) |
| Post | Inspector of Income Tax |
| Department | Central Board of Direct Taxes (CBDT), Ministry of Finance |
| Category | Group “C” |
| Pay Level | Level-7 (₹44,900 to ₹1,42,400) |
| Mode of Exam | Computer Based Examination (Online) |
| Type of Questions | Objective-Type, Multiple Choice |
| Selection Process | • Tier-I (Computer Based Examination) • Tier-II (Computer Based Examination) • Document Verification (DV) • Physical/Medical Tests |
| Negative Marking | • Tier-I: 0.50 marks • Tier-II (Section I, II, III): 1.00 mark |
| Official Website | https://ssc.gov.in |
SSC CGL Income Tax Officer: Exam Pattern
The 2025 examination follows a two-tier computer-based format. Tier-I acts as a qualifying screening test, while the final merit is determined solely by performance in Tier-II.
Tier-I: Computer Based Examination
- Format: Objective Type, Multiple Choice Questions.
- Negative Marking: 0.50 marks for each wrong answer.
| Section | Subject | Questions | Max Marks | Duration |
| A | General Intelligence & Reasoning | 25 | 50 | 1 Hour |
| B | General Awareness | 25 | 50 | (1 hr 20 min for scribes) |
| C | Quantitative Aptitude | 25 | 50 | |
| D | English Comprehension | 25 | 50 |
Tier-II: Detailed Paper-I Structure
For the Income Tax Inspector post, candidates must qualify all sections of Paper-I.
| Session | Section | Module/Subject | Questions | Marks |
| Session-I (2h 15m) | Section-I | Mathematical Abilities | 30 | 180 (3 marks each) |
| Reasoning & General Intelligence | 30 | |||
| Section-II | English Language & Comp. | 45 | 210 (3 marks each) | |
| General Awareness | 25 | |||
| Section-III | Computer Knowledge Test | 20 | 60 (Qualifying) | |
| Session-II (15m) | Section-IV | Data Entry Speed Test (DEST) | 2000 key depressions | Qualifying |
SSC CGL Income Tax Officer: Syllabus
1. Tier-I Detailed Syllabus
The Tier-I exam consists of four subjects, each carrying 50 marks.
| Subject | Detailed Topics & Components |
| General Intelligence & Reasoning | Analogies (Semantic, Symbolic, Figural), Similarities and differences, Space visualization, Spatial orientation, Problem solving, Analysis, Judgment, Decision making, Visual memory, Discrimination, Observation, Relationship concepts, Arithmetical reasoning, Figural classification, Arithmetic number series, Non-verbal series, Coding and decoding, Statement conclusion, Syllogistic reasoning, Semantic Series, Number Series, Figural Series, Word Building, Numerical Operations, Symbolic Operations, Trends, Venn Diagrams, Punched hole/pattern-folding & un-folding, Figural Pattern-folding and completion, Indexing, Address matching, Date & city matching, Classification of centre codes/roll numbers, Embedded Figures, Critical thinking, Emotional Intelligence, Social Intelligence. |
| General Awareness | Awareness of the environment and its application to society, Knowledge of current events, Matters of everyday observation and experience in their scientific aspect, India and its neighboring countries (History, Culture, Geography, Economic Scene, General Policy & Scientific Research). |
| Quantitative Aptitude | Computation of whole numbers, Decimals, Fractions, Relationships between numbers, Percentages, Ratio & Proportion, Square roots, Averages, Interest, Profit and Loss, Discount, Partnership Business, Mixture and Alligation, Time and distance, Time & Work, Basic algebraic identities, Elementary surds, Graphs of Linear Equations, Triangle and its centres, Congruence and similarity of triangles, Circle and its chords, tangents, angles subtended by chords, common tangents to two or more circles, Quadrilaterals, Regular Polygons, Right Prism, Right Circular Cone, Right Circular Cylinder, Sphere, Hemispheres, Rectangular Parallelepiped, Regular Right Pyramid, Trigonometric ratio, Degree and Radian Measures, Standard Identities, Complementary angles, Heights and Distances, Histogram, Frequency polygon, Bar diagram & Pie chart. |
| English Comprehension | Understanding correct English, basic comprehension, and writing ability. |
- Tier-II Detailed Syllabus (Paper-I)
Paper-I is compulsory for all posts, including the Income Tax Officer.
| Section | Module | Detailed Syllabus Topics |
| Section-I | Mathematical Abilities | Number Systems: Computation of Whole Number, Decimal and Fractions, Relationship between numbers. Fundamental arithmetical operations: Percentages, Ratio and Proportion, Square roots, Averages, Interest (Simple and Compound), Profit and Loss, Discount, Partnership Business, Mixture and Alligation, Time and distance, Time and work. Algebra: Basic algebraic identities, Elementary surds, Graphs of Linear Equations. Geometry: Triangle and its centres, Congruence and similarity, Circle and its chords, tangents, angles subtended by chords, common tangents. Mensuration: Triangle, Quadrilaterals, Regular Polygons, Circle, Right Prism, Right Circular Cone/Cylinder, Sphere, Hemispheres, Rectangular Parallelepiped, Regular Right Pyramid. Trigonometry: Trigonometric ratios, Complementary angles, Height and distances, Standard Identities like $\sin^2\theta+\cos^2\theta=1$. Statistics and probability: Histogram, Frequency polygon, Bar-diagram, Pie-chart; Measures of central tendency: mean, median, mode, standard deviation; simple probabilities. |
| Reasoning & General Intelligence | Questions of both verbal and non-verbal type: Semantic Analogy, Symbolic operations, Trends, Figural Analogy, Space Orientation, Venn Diagrams, Drawing inferences, Punched hole/pattern-folding & unfolding, Figural Pattern-folding and completion, Embedded figures, Critical Thinking, Problem Solving, Emotional Intelligence, Social Intelligence, Coding and de-coding, Numerical operations. | |
| Section-II | English Language & Comprehension | Vocabulary, grammar, sentence structure, synonyms, antonyms and correct usage; Spot the Error, Fill in the Blanks, Synonyms/Homonyms, Spellings/Detecting mis-spelt words, Idioms & Phrases, One word substitution, Improvement of Sentences, Active/Passive Voice, Conversion into Direct/Indirect narration, Shuffling of Sentence parts, Shuffling of Sentences in a passage, Cloze Passage, Comprehension Passage (Three or more paragraphs; at least one based on a book/story and others on current affairs/reports). |
| General Awareness | Awareness of the environment and application to society, knowledge of current events and everyday scientific observations, History, Culture, Geography, Economic Scene, General policy, and scientific research relating to India and neighboring countries. | |
| Section-III | Computer Knowledge Test | Computer Basics: Organization of a computer, CPU, input/output devices, computer memory, memory organization, back up devices, PORTS, Windows Explorer, Keyboard shortcuts. Software: Windows Operating system, MS Office (Word, Excel, Power Point). Working with Internet and e-mails: Web Browsing & Searching, Downloading & Uploading, Managing an E-mail Account, e-Banking. Networking and cyber security: Networking devices and protocols, Network and information security threats (hacking, virus, worms, Trojan etc.) and preventive measures. |
- Tier-II Detailed Syllabus (Paper-II: Statistics)
This paper is required only for candidates applying for Junior Statistical Officer (JSO) or Statistical Investigator Grade-II.
| Topic | Key Components |
| Data Presentation | Primary and Secondary data, Methods of collection, Tabulation, Graphs, Charts, Frequency distributions. |
| Central Tendency & Dispersion | Mean, Median, Mode, Quartiles, Deciles, Percentiles; Range, Quartile deviation, Mean deviation, Standard deviation. |
| Moments & Skewness | Different types of moments and their relationship; Meaning and measures of skewness and kurtosis. |
| Correlation & Regression | Scatter diagram, Simple correlation coefficient, Regression lines, Spearman’s rank correlation, Multiple and partial correlation (three variables). |
| Probability & Distributions | Conditional probability, Compound probability, Bayes’ theorem; Random variables, Expectation, Variance, Binomial, Poisson, Normal and Exponential distributions. |
| Sampling Theory | Population vs Sample, Parameter vs Statistic, Sampling errors, Random/Stratified/Cluster sampling, Sampling distribution. |
| Statistical Inference | Point and interval estimation, Methods of estimation (Moments, Maximum likelihood), Testing of hypothesis, Z, t, Chi-square, and F tests. |
| Advanced Analysis | Analysis of Variance (one-way and two-way data), Time Series Analysis (trend components, seasonal variation), Index Numbers. |
Preparation Tips
- Master the Fundamentals: For Quantitative Aptitude, focus on 10th-standard level mathematics but practice advanced Tier-II topics like Trigonometry and Statistics early. Use standard identities like $\sin^2\theta + \cos^2\theta = 1$ to solve problems faster.
- Daily General Awareness: The syllabus emphasizes current events and scientific aspects. Read editorials daily, as English Tier-II paragraphs are often sourced from current reports.
- Don’t Ignore Computers & Typing: Section-III (Computer Knowledge) and Section-IV (DEST) are mandatory. Ensure you can handle 2000 key depressions in 15 minutes to avoid disqualification.
- Practice Negative Marking Management: Tier-II has a heavy penalty of 1 mark for every wrong answer in Section-I and II. Mock tests are essential to learn which questions to skip.
- Physical and Medical Readiness: While Income Tax Inspectors are exempt from certain mental illness benchmarks, they must still meet the physical and vision standards prescribed for Group ‘C’ posts in CBDT.