MLA, APA & Chicago Format Guide 2026

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MLA, APA & Chicago Format Guide 2026
Formatting mistakes cost students up to 10% of their grade. This guide covers MLA 9th, APA 7th, and Chicago 17th editions with citation examples and templates.

Formatting your essay correctly is just as important as the content itself. Professors deduct points for incorrect margins, font sizes, and citation styles. This comprehensive guide covers everything you need to know about MLA, APA, and Chicago formatting styles for 2026.

Whether you're writing a high school research paper, a college essay, or a graduate thesis, using the correct format shows professionalism and attention to detail. Let's dive in.

Which Formatting Style Should You Use?

MLA APA Chicago
Use for English, Literature, Arts, Humanities Psychology, Education, Sciences, Social Sciences History, Business, Fine Arts, Publishing
Key features Author-page citations, Works Cited page Author-date citations, References page Footnotes/endnotes, Bibliography page
Common in High school essays, literature analysis Research papers, lab reports, dissertations Books, journals, historical research

MLA Format (9th Edition) - Complete Guide

MLA (Modern Language Association) format is the standard for humanities disciplines, especially English and literature.

MLA Basic Formatting Rules

Paper Setup:

Font: Times New Roman, 12pt
Margins: 1 inch on all sides
Line spacing: Double-spaced throughout
Indentation: First line of each paragraph 0.5 inches
Alignment: Left-aligned (not justified)
Page numbers: Top right corner (Last Name 1)

Header (First Page Only):

Your Name

Instructor's Name

Course Name

Date (Day Month Year format)

Title:

Centered, not bolded, not underlined
Standard capitalization (not all caps)
No extra space before or after

Works Cited Page:

Separate page at the end
"Works Cited" centered at top
Alphabetical order by author's last name
Hanging indent (0.5 inches) for each entry

MLA In-Text Citations

Basic Format: (Author's Last Name Page Number)

Examples:

One author: (Smith 23)
Two authors: (Smith and Jones 45)
Three+ authors: (Smith et al. 67)
No author: ("Article Title" 12)
Multiple sources: (Smith 23; Jones 45)

Signal phrase examples:

"According to Smith, the results were conclusive (23)."
"Smith argues that climate change is accelerating (23)."

MLA Works Cited Examples

Book:

Smith, John. The Art of Writing. Penguin Press, 2024.

Journal Article:

Jones, Sarah. "Climate Change Effects." Environmental Studies Journal, vol. 15, no. 2, 2025, pp. 45-67.

Website:

Brown, Michael. "How to Cite Sources." Writing Guide, 2026, www.writingguide.com/citations. Accessed 4 May 2026.

YouTube Video:

"MLA Format Tutorial." YouTube, uploaded by Writing Help, 15 Jan. 2026, www.youtube.com/watch?v=example.

APA Format (7th Edition) - Complete Guide

APA (American Psychological Association) format is standard for social sciences, education, psychology, and sciences.

APA Basic Formatting Rules

Paper Setup:

Font: Times New Roman 12pt or Arial 11pt
Margins: 1 inch on all sides
Line spacing: Double-spaced throughout
Indentation: First line of each paragraph 0.5 inches
Alignment: Left-aligned
Page numbers: Top right corner

Title Page (Required):

Title (bold, centered, 3-4 lines from top)
Your name (centered, below title)
Institution (centered)
Course number and name
Instructor name
Due date

Abstract (often required):

Separate page after title page
"Abstract" centered at top
150-250 word summary
No indentation

References Page:

Separate page at the end
"References" centered at top
Alphabetical order
Hanging indent (0.5 inches)

APA In-Text Citations

Basic Format: (Author's Last Name, Year)

Examples:

One author: (Smith, 2024)
Two authors: (Smith & Jones, 2025)
Three+ authors: (Smith et al., 2024)
Direct quote: (Smith, 2024, p. 23)
Multiple sources: (Smith, 2024; Jones, 2025)

Signal phrase examples:

"Smith (2024) found that the results were significant."
"According to Smith (2024), "direct quote" (p. 23)."

APA References Examples

Book:

Smith, J. (2024). The Art of Writing (2nd ed.). Penguin Press.

Journal Article:

Jones, S. (2025). Climate change effects. Environmental Studies Journal, 15(2), 45-67. https://doi.org/10.1234/esj.2025.15.2.45

Website:

Brown, M. (2026, May 4). How to cite sources. Writing Guide. Retrieved May 4, 2026, from https://www.writingguide.com/citations

YouTube Video:

Writing Help. (2026, January 15). APA format tutorial [Video]. YouTube. https://www.youtube.com/watch?v=example

Chicago Style (17th Edition) - Complete Guide

Chicago Manual of Style (CMOS) is standard for history, business, and some humanities disciplines. It uses two systems: Notes-Bibliography and Author-Date.

Chicago Basic Formatting Rules

Paper Setup:

Font: Times New Roman, 12pt
Margins: 1 inch on all sides
Line spacing: Double-spaced (except block quotes)
Indentation: First line of each paragraph 0.5 inches
Alignment: Left-aligned
Page numbers: Top right corner

Title Page:

Title (centered, 1/3 down)
Your name (centered, lower)
Course, instructor, date (centered, bottom)

Footnotes/Endnotes:

Superscript number in text¹
Notes at bottom of page (footnotes)
Single-spaced with double space between notes
First line indented 0.5 inches

Bibliography Page:

Separate page at the end
"Bibliography" centered at top
Alphabetical order
Hanging indent (0.5 inches)

Chicago Footnotes & Bibliography

Footnote Format (First citation):

1. John Smith, The Art of Writing (New York: Penguin Press, 2024), 23.

Footnote Format (Subsequent citations):

2. Smith, Art of Writing, 45.

Bibliography Entry (Book):

Smith, John. The Art of Writing. New York: Penguin Press, 2024.

Bibliography (Journal Article):

Jones, Sarah. "Climate Change Effects." Environmental Studies Journal 15, no. 2 (2025): 45-67.

Bibliography (Website):

Brown, Michael. "How to Cite Sources." Writing Guide. Accessed May 4, 2026. https://www.writingguide.com/citations.

MLA vs APA vs Chicago: Side-by-Side Comparison

Feature MLA APA Chicago
Disciplines Humanities, Literature, Arts Psychology, Education, Sciences History, Business, Fine Arts
Title Page No (header only) Yes (required) Yes (sometimes)
Abstract No Yes (150-250 words) Optional
In-Text Citation (Author Page) (Author, Year) Footnote/Endnote¹
Bibliography Title Works Cited References Bibliography
Author Format Smith, John Smith, J. (2024) Smith, John.
Date Placement Near end of citation After author name Near end of citation
Page Numbers Top right (Last Name 1) Top right Top right

10 Common Formatting Mistakes to Avoid

Wrong font or size: Always use Times New Roman 12pt (or specified font).
Incorrect margins: Most styles require 1-inch margins on all sides.
Missing page numbers: Every page except the title page needs numbers.
Inconsistent citations: Mixing author-page with author-date formats.
Forgetting hanging indents: Bibliography entries need hanging indents (0.5 inches).
Wrong order of authors: Alphabetize by last name in all styles.
Missing DOIs/URLs: APA requires DOIs for journal articles.
Incorrect capitalization in titles: MLA uses title case, APA uses sentence case for article titles.
Extra spaces between paragraphs: All styles require double-spacing throughout, no extra spaces.
Wrong citation placement: Place citations immediately after the cited information.

Final Formatting Checklist

Frequently Asked Questions

MLA is most common for high school and college English essays. APA is common for social sciences and research papers.
Yes, but always double-check settings. Google Docs defaults to 11pt Arial and may not have proper hanging indent settings.
No. MLA uses a header on the first page instead of a separate title page, unless your instructor specifically requests one.
References (APA) includes only sources cited in your paper. Bibliography (MLA/Chicago) includes all sources you consulted, even if not cited.
Quotes longer than 4 lines (MLA) or 40 words (APA) should be formatted as block quotes: indented 0.5 inches, no quotation marks, double-spaced.

Quick Reference:

MLA: (Author Page) → Works Cited
APA: (Author, Year) → References
Chicago: Footnote¹ → Bibliography
Always: Double-space, 1-inch margins, Times New Roman 12pt

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