An APA format essay follows a set of standardized rules created by the American Psychological Association for organizing academic papers, citing sources, and presenting research. It’s the default formatting style in psychology, education, nursing, social sciences, and many other fields. If your professor assigned a paper “in APA format,” here’s exactly what that means and how to set it up.
Basic Page Setup
Every APA paper shares the same foundational formatting. Use 1-inch margins on all sides, double-space the entire document (including the title page and reference list), and indent the first line of each paragraph by half an inch. The 7th edition of the APA manual allows several font choices, including 12-point Times New Roman, 11-point Calibri, 11-point Arial, and 10-point Lucida Sans Unicode. Pick one and use it consistently throughout.
Page numbers go in the top-right corner of every page, starting with the title page as page 1. Align your text to the left margin rather than justifying both sides, which keeps word spacing even and readable.
Title Page Requirements
The title page is where student papers and professional papers diverge. If you’re writing for a class, your title page needs six elements: the paper title (bolded, centered, positioned in the upper half of the page), your name, your school or institutional affiliation, the course number and name, your instructor’s name, and the assignment due date.
A professional paper submitted for publication has a different setup. It includes the paper title, author names, institutional affiliations, an author note, and a running head. The running head is a shortened version of your title (50 characters or fewer) that appears in the header of every page in all caps. Student papers do not need a running head unless an instructor specifically asks for one.
Structure of the Essay Body
Most APA essays follow a straightforward structure: an introduction, body sections organized under headings, and a conclusion. APA uses a five-level heading system to organize content, though a typical class essay only needs the first one or two levels.
A Level 1 heading is bold, centered, and in title case. A Level 2 heading is bold, left-aligned, and also in title case. These headings replace the vague “Body Paragraph 1” approach you might remember from earlier writing classes. Instead of generic labels, each heading should describe what that section actually covers, like “Effects of Sleep Deprivation on Memory” or “Limitations of the Study.”
Your introduction doesn’t get a heading labeled “Introduction.” APA style assumes the text following the title on the first page of the body is the introduction. Jump straight into your topic.
How In-Text Citations Work
APA uses an author-date citation system. Every time you reference someone else’s idea, data, or direct words, you include the author’s last name and the year of publication. There are two ways to do this.
A parenthetical citation places both pieces of information at the end of the sentence: “Sleep quality declined significantly among shift workers (Ahmed, 2016).” A narrative citation weaves the author’s name into the sentence itself: “As Ahmed (2016) found, sleep quality declined significantly among shift workers.” Both are correct, and mixing them throughout your paper creates smoother, more varied writing.
The rules shift slightly depending on how many authors a source has. For two authors, name both every time you cite the work, using “and” in narrative citations and an ampersand in parenthetical ones: “Wegener and Petty (1994)” in the text, but “(Wegener & Petty, 1994)” in parentheses. For three or more authors, list only the first author followed by “et al.” from the very first citation onward: “(Kernis et al., 1993).” Note that in “et al.,” only “al” gets a period.
When you quote someone’s exact words, you also need a page number: (Ahmed, 2016, p. 47). For paraphrased ideas, the page number is encouraged but not strictly required.
Building the Reference List
The reference list appears on its own page at the end of your paper. Center the word “References” in bold at the top. Don’t label it “Works Cited” or “Bibliography,” which belong to other citation styles.
Each entry follows a specific formula depending on the source type (journal article, book, website, etc.), but a few rules apply across the board. Alphabetize entries by the first author’s last name. When a source has no author, alphabetize it by its title. Use a hanging indent for every entry, meaning the first line is flush left and every subsequent line is indented half an inch. Double-space the entire list, with no extra space between entries.
A basic journal article reference looks like this:
Ahmed, S. (2016). Title of the article in sentence case. Title of the Journal in Title Case, 12(3), 45-67. https://doi.org/xxxxx
Notice that only the first word of the article title is capitalized (plus proper nouns and the first word after a colon), while the journal name keeps standard title case. The volume number is italicized, the issue number sits in parentheses without italics, and a DOI or URL goes at the end when available.
Key Changes in the 7th Edition
The 7th edition of the APA Publication Manual is the current standard, and it introduced several changes from the 6th edition that still trip people up. The biggest practical differences include the addition of specific student paper guidelines (the 6th edition only addressed professional manuscripts), more than 140 sample references covering modern sources like social media posts and webpages, and expanded bias-free language guidelines that now address socioeconomic status and intersectionality.
The 7th edition also simplified citations. You no longer need to include the publisher’s location for books, and DOIs are formatted as full URLs (https://doi.org/xxxxx) rather than the older “doi:” prefix. These may seem like small details, but they’re exactly the kind of thing that costs you points if your instructor is grading on formatting.
Practical Tips for Getting It Right
Most word processors can handle APA formatting with a few manual adjustments. In Google Docs or Microsoft Word, set your margins to 1 inch, change line spacing to double, and remove any extra spacing before or after paragraphs (this is a common default that adds unwanted gaps). For the hanging indent on your reference list, highlight your entries, open the paragraph settings, and set “Special” to “Hanging” at 0.5 inches.
Citation generators built into databases like JSTOR or Google Scholar can save time, but they frequently contain errors, particularly with capitalization, italics, and missing DOIs. Always compare the output against APA’s formatting rules before pasting it into your reference list. Getting the substance of your paper right matters most, but clean APA formatting signals that you’ve taken the assignment seriously and makes your work easier to read.