Lists & Tips

How to Write an Outline for a Research Paper: Formats, Tips & Templates

This article provides a clear, practical guide to writing research paper outlines, covering formatting styles, expert tips, and downloadable templates to help readers organize their ideas efficiently and confidently
Daniel W.
Sep 11, 2025

APA Style Formatting & Citation Guide for Essays, Reports, and Research Papers

Some of you might not believe in the importance of a paper outline. Let us assure you that it is crucial for successful writing. Why is that? Well, because it can be quite challenging to construct and organize your thoughts in a way that makes sense.

Outlining can help with that by allowing you to lay out your thoughts and ideas in a sequential manner and flow. From this, you can pick the relevant information from your sources beforehand and use them as a groundwork when you start writing.

In the case of a research paper outline, it serves as an excellent tool to help you keep track of the large amounts of information that come with writing a research paper. The question is, why make an outline using APA format? First of all, know that it isn’t required.

The APA guidelines are for published works, which an outline is not. However, there are some advantages to doing so, such as making it much easier to write a paper in APA style. This is particularly so if the assignment instructions mention APA as part of the grading criteria.

Plenty of students and professionals don’t know how to create APA outlines, and that’s what we’re here for. Check the rest of the article as we explain how to outline your paper following the specific guidelines in the APA manual.

Why APA structure matters

Consistency is a vital principle that helps keep your writing clear, credible, and overall effective. If your writing is consistent, your readers should be able to understand your work well, from your arguments to your evidence.

Clear and consistent writing means your readers can focus on your main argument and ideas. It facilitates comprehension and keeps them engaged. Outlines can help you do that by improving your logic and flow through organizing your ideas.

Breaking your content into an outline with headings and subheadings helps you build your ideas on previous ones more cohesively. This prevents you from jumping between topics, therefore enhancing the flow, coherence, and readability of your research paper.

As previously mentioned, you are not required to create an APA outline. It can be an ordinary outline that doesn’t follow any formatting or stylistic guidelines. However, an APA paper outline is recommended if you are writing a paper in education, psychology, or social sciences.

The American Psychological Association (APA) helps advance the sciences, set professional and ethical standards, and ensure clear communication. It is mostly known for standardizing the writing and citation styles for uniformity and clarity in professional and academic documents.

It does more than that for APA sets the standard and develops the best practices in psychology and social sciences. The organization helps advance research and shape education, making it crucial to outline in APA in adherence to professional and academic criteria.

Types of APA outline formats

Let’s move on to the different types of APA outline formats, of which there are three. Each of them uses different numeric sequences that can be used to structure your research paper.

Basic APA outline format

The basic APA outline uses alphanumeric hierarchy – the main headings are roman numerals, the subheadings are capital letters, and lowercase letters or numbers for further details. Here is an example:

I. The main heading that uses Roman numerals (e.g., I, II, or III)
A. The subheading uses capital letters (e.g., A, B, or C)
1. For the next subheadings, use  Arabic numerals such as 1, 2, 3, etc.
a. Further subheadings can use the lowercase alphabet (e.g., a, b, or c)
When the headings reach the fifth level, you can then use Arabic numerals inside parentheses like so: (1), (2), or (3).

Full sentence APA outline format


A full sentence outline means all lines used in this format are full sentences, giving your draft a more solid structure. This APA paper outline is best used for speeches and essays, and here’s an example to help with that:

1. The main headings use Roman numerals such as I, II, or III and are full sentences.
A. The subheadings use capital letters such as A, B, or C, and are full sentences.
B. The subheadings provide supporting points to the main idea.
1. Arabic numerals like 1, 2, or 3 are used for sub-subheadings.
2. Both basic APA outline and the full sentence outline use alphanumeric hierarchy
a. Full sentence outlines also use lowercase letters like a, b, or c for further subheadings.
(1) Both also use Arabic numerals inside parentheses for fifth-level headings.

Decimal APA outline format

The decimal outline is different from other APA style outlines. It uses paragraphs instead of just sentences, but has a simple structure. There are three major sections in a decimal outline: the introduction, main body, and conclusion. Below is an explanation of what is usually included in each of the main paragraphs:

Introduction


It starts with a sentence or two introducing the research paper’s main topic. Next, you mention where your research is applicable, providing context. The next sentence is the rationale, explaining the importance of your research. Lastly, don’t forget to provide your thesis statement, which provides a preview of your paper’s main concept.

Main body


The main body comprises body paragraphs discussing the main point or topic of the paper.

The first paragraph has the first topic sentence, specifying the first claim supporting your thesis statement. This is followed by the first supporting point, which gives the reason supporting your claim or argument. This is further followed by the first explanation, providing your piece of evidence.

Then, we go to the second supporting point. This gives the second reason supporting your claim. Just like before, it’s followed by the second explanation. If you still have supporting points, you can continue to the third, fourth, or fifth supporting point and explanation. End the paragraph with your concluding sentence, tying all your supporting points to the thesis.

Conclusion


The conclusion paragraph is where you restate your major claims while providing a closure to your paper. Write it by first re-stating your stand, then your major claims, your final concluding point, and your thesis statement, connecting it back to the context of your paper. Finish it off by writing your final thoughts on the topic.

Here is an example outline:

Introduction
1.0 Main heading or first heading
1.1 First paragraph of the first heading
1.1.1 First sentence of the first paragraph (highlights the first point of the first paragraph)

Main body
1.0 Main heading or first heading
1.1 First paragraph of the first heading
1.1.1 First sentence of the first paragraph (highlights the first point of the first paragraph of the main body)
1.1.2 Second sentence of the first paragraph (highlights the second point of the first paragraph of the main body)
1.2 Second paragraph of the first heading
1.2.1 First sentence of the second paragraph (highlights the first point of the second paragraph of the main body)
1.2.2 Second sentence of the second paragraph (highlights the second point of the second paragraph of the main body)

Conclusion
1.0 Main heading of the conclusion
1.1 First paragraph of the conclusion
1.1. First sentence of the first paragraph (restates the main point and supporting points)

A comparison table of APA outline format examples for quick reference:

Outline Type Description
Basic APA Outline Alphanumeric hierarchy using Roman numerals (I, II), capital letters (A, B), Arabic numbers (1, 2), and lowercase letters (a, b).
Full Sentence Outline Uses complete sentences to describe each point; follows the same alphanumeric structure as the basic outline.
Decimal Outline Organizes content into numbered sections (e.g., 1.0, 1.1, 1.2); typically includes Introduction, Main Body, and Conclusion.

APA outline template breakdown

As previously mentioned, there are no APA standards for outlines. There are only formatting rules. Keep in mind that an APA research paper outline template isn’t strict, but your professor might have strict instructions. Those instructions are what you should follow first and foremost.

However, the basic guidelines are usually the same as follows:

Font


The most widely accepted font used for an APA paper is Times New Roman in 12-point font size. Serif or sans serif fonts like Georgia and Arial are also accepted in an 11-point font size.

Spacing

The line spacing in APA format is double-spaced. All parts of the paper must be double-spaced, not just the text but also the abstract, quotations, figure numbers, title page, notes, tables, and reference list.

Numerals

The headlines when writing an outline must be either Roman or Arabic numerals. Don’t confuse it with the guidelines used when writing, where you spell out the numbers from zero to nine and use the Arabic numbers from 10 above. This only applies to APA format outlines.

Margins

The standard APA format layout for any paper requires that the top, bottom, right, and left sides have 1-inch margins. On the other hand, the page number must be on the upper right-hand corner of the research paper.

Headings and subheadings

We have covered this before when discussing the types of APA format outlines. To recap:

  • Roman numerals for main headings
  • Capital letters for subheadings
  • Arabic numerals for sub-subheadings
  • Lowercase letters for fourth-level subheadings
  • Arabic numbers inside parentheses for fifth-level subheadings

Step-by-Step Guide to Building Your APA Paper Outline

Here is a simple guide on how to build your outline using APA paper format:

Choose your paper outline format

Start by deciding on which research paper outline to use. The choice depends on the complexity of the topic, the purpose of the paper, and your or the institution’s preference.

Select the right APA outline format

Next is to select the APA outline you want to use. Go back to the types of outline formats we discussed and choose the one that best enhances your paper’s clarity and organization.

Fill in your paper outline template

Once you’ve chosen an outline, the next step is to fill it in. Put down the main points, supporting points, supporting evidence, and explanation you have, and organize them into your outline.

Review for hierarchy and logic

After laying out the details on your outline, don’t forget to review them. Check if their hierarchy is correct and if the logic makes sense to ensure your writing is clear and consistent.

Format according to APA style outline rules

Don’t forget to format it according to APA format style rules.

APA outline example

Here is an APA outline example for an education topic to guide you:

Title: The Impact of Technology on Student Learning
I. Introduction
A. Overview of technology in education

  1. History or growth of using digital tools in classrooms
  2. The trends in student technology use

B. Importance of this study

  1. What are the educational implications?
  2. What are the learning outcomes?

C. State the research question and thesis statement
II. Main body
A. Literature review
       1. Benefits of technology in the classrooms
               a. Improved student engagement
               b. Access to more resources
       2. Drawbacks to using technology in the classrooms
               a. Serves as an added distraction
               b. Issues on access and equal use
       3. Gaps in research
B. Methodology
       1. Research design
               a. Surveys
               b. Interviews
       2. Participants
               a. Student demographics
               b. Sampling methods
       3. Data collection and analysis
               a. Survey instruments to be used
               b. Statistical analysis to be used
C. Results

  1. Summary of key findings
  2. Data visualization using tables, charts, etc.
  3. Interpretation of results

D. Discussion

  1. Implications
  2. Recommendations
  3. Limitations

III. Conclusion
A. Summary of the main points
B. Restate the thesis statement
C. Final thoughts on the topic

Common mistakes to avoid

Here are also some mistakes to avoid when creating an outline.

Mixing outline APA formats


Don’t combine two different APA paper formats in one paper, like mixing decimal and alphanumeric styles. Doing so will only make your structure confusing and your writing lacking any consistency, thereby defeating the purpose of an outline.

Lack of parallelism


Parallelism is important in outlining as it strengthens clarity and flow. As such, make sure that you use the same grammatical structure when outlining throughout, whether you start with a verb or a noun.

Overcomplicating the structure


Ensure that your outline is as clear and straightforward. Don’t add too many levels or subdivisions, which does nothing but the opposite of making your paper clear and readable. Keep it simple.

Ignoring APA format outline rules


Maintain your paper’s professionalism and readability by following the APA formatting rules strictly. Follow your instructor’s specific requirements when it comes to font, font size, spacing, and proper labeling.

Tips for Using Paper Outline Templates Effectively

How to use paper outline templates effectively? Here are some tips to help with that!

Customize templates for different disciplines


Don’t be strict with the templates – adapt them based on the unique requirements of your topic or discipline. In doing so, you can ensure that your paper will not only have coherence, clarity, and consistency but also relevance to your specific field.

Use outline tools (e.g., Google Docs, Notion)


There are various digital tools you can use to make formatting and outlining easier. It would be a waste not to use them, so try them out. Whether it’s Google Docs, Notion, or any other tool, they can help make the research and writing process more organized and flexible.

Align your research paper outline template with the final paper goals


Ensure that your outline reflects the structure you want your final paper to have. This alignment will help you maintain focus while writing, so you don’t lose key sections and add unnecessary content. Doing this will simplify your writing process.

Conclusion

Using an APA format outline for academic success is a tried and tested approach. Using an outline is highly successful as it provides a clear and organized roadmap that you can use to structure your thoughts as well as research and write logically.

With a well-crafted APA outline to help you create a polished final paper with clearer communication and stronger arguments, don’t hesitate and try creating your own APA outline template today!