APA In-Text Citations: The Format for Every Scenario
You know exactly which study you're citing. What you don't always know is whether the sentence needs (Smith, 2020), Smith (2020), or a citation with "et al." buried somewhere inside it, and guessing wrong on any one of those is where an otherwise strong paper starts losing easy points.
That hesitation is where the points get lost. An APA in-text citation only has two ingredients, an author and a year, but the seventh edition of the Publication Manual (Chapter 8) sets a different exact format for one author, two authors, three or more, a group author, a missing author, a missing date, a direct quote, and a source you found quoted inside someone else's paper. Here's the reassuring part: most citation errors come from that same short, repeat list of scenarios, not from creativity, so once you've seen the format for each one, you stop rebuilding the rule from memory every time a new source shows up. Here is the exact format for each scenario, with a plain example next to it.
The two forms every APA in-text citation takes
Every APA in-text citation takes one of two shapes (APA 7, Section 8.11). Parenthetical: the author and year sit in parentheses at the end of the sentence, (Smith, 2020). Narrative: the author's name is part of your sentence and only the year sits in parentheses, Smith (2020) found that.... Neither one outranks the other. Use whichever reads better in the sentence you're writing, and switch between the two throughout a paper without apology.
One detail trips people moving between the two: inside parentheses, multiple authors are joined with an ampersand, &. In a narrative sentence, spell out and. That single swap is where several of the scenarios below diverge.
Citing the same source twice in one paragraph
This one saves you from a genuinely annoying repetition. If you cite the same work more than once in a narrative citation within a single paragraph, you don't have to repeat the year after the first mention (Section 8.16): Smith (2020) argued that the sample size was too small. Smith also noted that the effect disappeared in a larger cohort. The moment you start a new paragraph, or introduce a second source that could be confused with the first, the year comes back.
One author and two authors
A single author needs no judgment call: (Smith, 2020) or Smith (2020).
Two authors get named both, every time you cite the source, first citation or twentieth. Parenthetical uses the ampersand, (Smith & Jones, 2020). Narrative spells out and, Smith and Jones (2020). A two-author source never shortens to "et al.," no matter how many times it shows up in your paper.
Three or more authors: the rule APA 7 changed
The mistake: spelling out every author's name the first time a three-plus-author source appears, then switching to "et al." on later citations. That was the APA 6 rule, and it still shows up in old templates and half-remembered advice from an earlier class.
The fix: under APA 7, a source with three or more authors uses only the first author's surname plus "et al.," starting with the very first citation (Section 8.17): (Smith et al., 2020). You never write out the full author list in the body of the paper, not even once, no matter how many authors the study has.
Why it matters: this is one of the easiest slips for a grader to catch, because it's visible on the very first citation of the source, not buried on page 20. If your committee is still picturing the old rule, point them to the change rather than argue about it. Our rundown of the most common in-text citation mistakes covers this one alongside the others graders flag most often.
Group and organization authors
When the author is an organization, spell out the full name the first time, then switch to the abbreviation for every citation after that, as long as the abbreviation will actually mean something to your reader (Section 8.21). First citation: (American Psychological Association [APA], 2020). Every citation after that: (APA, 2020).
If the organization's name is already short, or the abbreviation would confuse more than it helps, just spell it out every time. The test is whether the shortcut serves the reader, not whether one technically exists. A source like the World Health Organization earns the shortcut to WHO because your reader will recognize it instantly. A small regional nonprofit with no public abbreviation just stays spelled out for the whole paper. That's simply the correct call there.
When the source is missing an author or a date
No listed author: use the first few words of the title in place of a name (Section 8.14), and match the title's formatting to how it appears in your reference list. Quotation marks for an article or webpage title, italics for a book or report title: ("Title of Page," 2020) or (Title of Report, 2020). This comes up constantly with webpages, since the byline and the publish date are often buried somewhere other than the top of the page, and our guide to how to cite a website in APA 7 covers exactly where to look.
No listed date: use n.d. in place of the year, in both the in-text citation and the matching reference list entry, (Smith, n.d.).
Quoting directly needs a location, not just a year
A paraphrase needs only the author and the year. A direct quotation needs a location too (Section 8.13): (Smith, 2020, p. 15) for a single page, (Smith, 2020, pp. 15–16) for a range. If the source has no page numbers, a paragraph number or a heading stands in instead: (Smith, 2020, para. 4).
This is the one deadline pressure erases, because the words in the quote are already exact and it feels like the citation should follow automatically. It doesn't. Every direct quote carries its own location marker, separate from the year.
The length of the quote changes the formatting around it, not the citation itself. Anything under 40 words stays inline, wrapped in quotation marks, with the page number sitting in the same parentheses as the author and year. At 40 words or more, APA 7 calls it a block quotation: no quotation marks, the whole passage indented 0.5 inches as its own block, and the citation moves to the end, after the closing punctuation. Either way, the page number travels with the quote. It never gets dropped just because the sentence around it got longer.
Citing more than one source, or the same author twice in a year
Two or more sources backing the same point go inside one set of parentheses, in alphabetical order, separated by semicolons (Section 8.12): (Jones, 2019; Smith, 2020).
If you cite two different works by the same author published in the same year, add a lowercase letter after the year, in both the in-text citation and the reference list, starting with a (Section 8.19): (Smith, 2020a) for one, (Smith, 2020b) for the other. The letters follow the order the sources appear in your reference list, not the order you happen to cite them.
Secondary sources: a quote you found inside someone else's paper
Sometimes the source you want isn't the one you actually read. It's quoted or summarized inside a different paper. That's a secondary source (Section 8.6): (Brown, 1999, as cited in Smith, 2020). Brown did the original work; Smith is the paper sitting open in front of you right now.
The trap: your reference list entry is for Smith, the source you actually read, not Brown. Brown never gets a reference list entry of their own here, because you haven't actually read Brown's work, only Smith's description of it. Track down the original whenever it's available to you. APA permits secondary citations, but leaning on them too often is a quiet signal that you're citing sources you never opened, and it's usually one of the first things a thesis committee starts checking.
The rule that ties every scenario together
Whatever format a given scenario calls for, one rule sits underneath all of them: every in-text citation needs a matching entry in your reference list, and every reference list entry needs to show up somewhere in your text. Nothing sits on either side without a partner. A source you cited on page 12 but never added to the reference list is just as much an error as a reference list entry for a source you never actually cited in the paper. Once your citations are formatted correctly, that match is the last thing worth checking by hand, and our guide to building an APA reference page for every source type covers the entry-side half of the same check.
Check the whole list in one pass
You can work through a finished draft citation by citation and check each one against this list yourself, now that you have the full list to check it against. Or skip the manual pass: we built StyleMyPaper to hold these scenarios so you don't have to, and it checks your in-text citations against your reference list in about a minute, then formats the rest of the document around it. See how the APA formatting tool handles it, or run your first paper through free.