How to Write in APA Format: A Complete Guide for Students and Researchers

APA format—defined by the Publication Manual of the American Psychological Association, currently in its seventh edition—is the standard citation and formatting style for psychology, education, social work, nursing, business, and numerous other disciplines. If your syllabus, thesis handbook, or journal author guidelines say 'APA,' they expect a specific paper structure, heading hierarchy, in-text citation pattern, and reference list format. Getting APA wrong does not invalidate your research, but it signals unfamiliarity with disciplinary conventions and can cost marks or trigger desk rejection. This complete guide walks through every major APA 7 requirement for student papers, theses, and research manuscripts.

When to use APA format

Use APA when your institution, publisher, or discipline defaults to it. It is standard in North American and increasingly global social science programmes. Indian universities often require APA 7 for management, psychology, education, and social science theses. Always confirm with your department—some programmes accept APA with minor local modifications.

General APA paper formatting rules

• Font: accessible choices including 12-point Times New Roman, 11-point Arial, or 11-point Calibri.
• Margins: 1 inch (2.54 cm) on all sides.
• Line spacing: double throughout, including reference list (unless instructor allows exceptions).
• Paragraph indentation: 0.5 inch first-line indent for body text.
• Page numbers: top right of every page, starting with the title page as page 1.
• Running head: required for professional papers; optional for student papers unless instructor requires it.

Student paper title page (APA 7)

Student title pages include: paper title in bold, centred, title case; author name; institutional affiliation (department and university); course number and name; instructor name; assignment due date. No author note is required for student papers. The title should be concise and descriptive—typically 12 words or fewer.

Professional paper title page

Professional manuscripts add a running head (short title in capitals, max 50 characters), author byline, affiliations with superscript numbers linked to departmental addresses, author note with ORCID and correspondence details, and sometimes a footnote indicating authorship contributions or funding.

Abstract requirements

The abstract appears on its own page after the title page. Label it 'Abstract' in bold, centred. The abstract itself is a single paragraph, not indented, typically 150–250 words. It should summarise the problem, method, key results, and implications. Keywords appear on a new indented line: 'Keywords: term1, term2, term3' (3–5 terms).

APA heading levels

APA uses five heading levels with specific formatting:

1. 1Level 1: Centred, Bold, Title Case.
2. 2Level 2: Flush Left, Bold, Title Case.
3. 3Level 3: Flush Left, Bold Italic, Title Case.
4. 4Level 4: Indented, Bold, Title Case, ending with a period. Text begins on same line.
5. 5Level 5: Indented, Bold Italic, Title Case, ending with a period. Text begins on same line.

Do not skip heading levels. A Level 3 heading should not follow a Level 1 heading directly.

In-text citations in APA 7

APA uses author–date citations. Paraphrases: (Author, Year) or Author (Year). Direct quotes: include page number—(Author, Year, p. 24). One author: (Smith, 2023). Two authors: (Smith & Jones, 2023). Three or more: (Smith et al., 2023)—note 'et al.' from the first citation in APA 7. Multiple sources in one citation: alphabetical order, separated by semicolons—(Jones, 2022; Smith, 2023).

Reference list fundamentals

Start the reference list on a new page. Title it 'References' in bold, centred. Entries are alphabetised by first author's surname. Use a hanging indent of 0.5 inch. Include DOIs as https://doi.org/xxxxx hyperlinks when available. Every in-text citation must appear in the reference list, and every reference list entry must be cited in the text.

Common APA reference examples

• Journal: Author, A. A. (Year). Title of article. Title of Periodical, volume(issue), pages. https://doi.org/xxxxx
• Book: Author, A. A. (Year). Title of work (Edition). Publisher.
• Chapter: Author, A. A. (Year). Chapter title. In E. Editor (Ed.), Book title (pp. xx–xx). Publisher.
• Website: Author or Organisation. (Year, Month Day). Title. Site Name. URL

Tables and figures in APA

Tables need a number (Table 1) and an italicised title above the table. Figures need a number (Figure 1) and an italicised title below the figure. Refer to each in the text before it appears. Notes below tables explain abbreviations or additional detail. All visual elements must be mentioned in the narrative—not orphaned at the end of the document.

Quotations and block quotes

Short quotations (under 40 words) appear in double quotation marks within the text with a page number. Block quotations of 40 words or more start on a new line, indented 0.5 inch, without quotation marks, with the citation after the final punctuation.

Bias-free and inclusive language (APA 7 emphasis)

APA 7 emphasises respectful, precise language about age, disability, gender, racial and ethnic identity, and participation in research. Use specific descriptors participants prefer, avoid equating characteristics with deficits, and default to 'they' as a singular pronoun when gender is unknown or irrelevant.

Frequent APA mistakes to avoid

• Using 'Retrieved from' before DOIs—APA 7 removed this for most sources.
• Incorrect italics: journal titles and volume numbers are italicised; article titles are not.
• Missing hanging indents in the reference list.
• Citing only the URL when a DOI exists.
• Using et al. incorrectly for two-author sources.
• Numbering references instead of alphabetising (that is IEEE/Vancouver, not APA).

APA for theses vs student papers vs journal submission

University theses often require APA plus institutional front matter: declaration, certificate, acknowledgements, and chapter-based structure. Journals may modify APA for house style. Always treat the most specific guideline—journal author instructions or university thesis template—as overriding general APA where they conflict.

Getting APA formatting support

APA compliance across a 100-page thesis is tedious and error-prone. Professional formatting services apply APA 7 to your entire document—references, headings, tables, and citations—so you can focus on research content and meet submission deadlines confidently.