DETAILED CHECKLIST

Internship Application Checklist: Your Complete Guide to Comprehensive Internship Applications

By Checklist Directory Editorial TeamContent Editor
Last updated: January 4, 2026
Expert ReviewedRegularly Updated

Research and Preparation

Research internship opportunities in your field of interest

Identify companies and organizations offering internships

Review internship requirements and qualifications

Research company culture, values, and mission

Learn about company's recent projects and initiatives

Check application deadlines and timeline

Identify key contacts and hiring managers if possible

Review internship program details and expectations

Assess your qualifications and fit for each opportunity

Prioritize internship opportunities based on interest and fit

Resume Preparation

Update resume with current information and experiences

Tailor resume to highlight relevant skills and experiences

Include relevant coursework, projects, and academic achievements

Highlight leadership roles and extracurricular activities

Include relevant work experience, even if part-time or volunteer

List technical skills and software proficiencies

Use action verbs and quantify achievements where possible

Ensure resume is error-free and professionally formatted

Keep resume to one page if possible (for students)

Save resume in multiple formats (PDF, Word) for different applications

Cover Letter Writing

Research specific internship role and requirements

Customize cover letter for each internship application

Address cover letter to specific person when possible

Write compelling opening paragraph that captures attention

Explain why you are interested in this specific internship

Highlight relevant skills and experiences that match requirements

Demonstrate knowledge of company and industry

Explain what you can contribute to the organization

Write strong closing paragraph with call to action

Proofread cover letter for errors and clarity

Application Submission

Review application instructions carefully

Complete all required application fields accurately

Upload resume and cover letter in correct formats

Include portfolio or work samples if requested

Provide accurate contact information

List references if requested (with permission)

Answer application questions thoughtfully and completely

Review entire application before submission

Submit application before deadline

Save confirmation of application submission

Interview Preparation

Research company thoroughly before interview

Review job description and internship requirements

Prepare answers to common interview questions

Prepare examples of your work and achievements (STAR method)

Prepare thoughtful questions to ask interviewer

Practice interview responses out loud

Prepare professional attire for interview

Test technology if virtual interview (camera, microphone, internet)

Plan route and timing if in-person interview

Prepare portfolio or work samples to discuss

During Interview

Arrive early or log in early for virtual interview

Dress professionally and appropriately

Maintain eye contact and positive body language

Listen carefully to questions and answer thoughtfully

Use STAR method (Situation, Task, Action, Result) for behavioral questions

Demonstrate enthusiasm and interest in the role

Ask thoughtful questions about the internship

Discuss your relevant skills and experiences

Express what you hope to learn and contribute

Thank interviewer for their time and opportunity

Follow-Up

Send thank you email within 24 hours of interview

Personalize thank you note with specific interview details

Reiterate your interest in the position

Follow up if you haven't heard back within stated timeframe

Maintain professional communication throughout process

Respond promptly to any requests for additional information

Keep track of application status and follow-up dates

Continue applying to other opportunities while waiting

Handle rejection gracefully and professionally

Request feedback if application is unsuccessful

Additional Considerations

Build professional online presence (LinkedIn profile)

Network with professionals in your field of interest

Attend career fairs and networking events

Seek recommendations from professors or previous employers

Develop relevant skills through courses or projects

Create portfolio showcasing your work and projects

Practice professional communication and email etiquette

Research internship compensation and benefits if applicable

Prepare for potential background checks or reference checks

Stay organized with application tracking spreadsheet

Comprehensive internship application requires thorough research and preparation identifying opportunities, strategic resume preparation highlighting your qualifications, compelling cover letter writing demonstrating your interest and fit, careful application submission ensuring completeness and accuracy, effective interview preparation showcasing your potential, professional follow-up maintaining communication, and additional considerations building your professional presence. According to National Association of Colleges and Employers data, students who complete internships are 20% more likely to receive job offers and report higher starting salaries compared to those without internship experience. Studies show that well-prepared internship applications that demonstrate research, customization, and genuine interest are 3-4 times more likely to result in interviews. Whether you are applying for your first internship or seeking advanced opportunities, this checklist ensures you approach internship applications with complete preparation, proper organization, and commitment to presenting your best self.

This detailed checklist walks you through research and preparation, resume preparation, cover letter writing, application submission, interview preparation, during interview, follow-up, and additional considerations. Each phase addresses specific aspects of internship applications, ensuring you can apply comprehensively and maximize your chances of success.

Research and Preparation: Identifying Opportunities

Thorough research and preparation establishes foundation for successful internship applications. Research internship opportunities in your field of interest to discover available positions. Identify companies and organizations offering internships that align with your career goals. Review internship requirements and qualifications to assess your fit.

Research company culture, values, and mission to understand organizational fit. Learn about company's recent projects and initiatives to demonstrate knowledge during application. Check application deadlines and timeline to ensure timely submission. Identify key contacts and hiring managers if possible to personalize your application.

Review internship program details and expectations to understand what is involved. Assess your qualifications and fit for each opportunity to focus your efforts. Prioritize internship opportunities based on interest and fit to maximize your chances. Comprehensive research ensures you apply to opportunities that match your goals and qualifications.

Resume Preparation: Highlighting Your Qualifications

Strategic resume preparation showcases your qualifications and potential effectively. Update resume with current information and experiences to reflect your latest achievements. Tailor resume to highlight relevant skills and experiences that match internship requirements. Include relevant coursework, projects, and academic achievements that demonstrate your capabilities.

Highlight leadership roles and extracurricular activities that show well-roundedness. Include relevant work experience, even if part-time or volunteer, to demonstrate work ethic. List technical skills and software proficiencies that are relevant to the role. Use action verbs and quantify achievements where possible to demonstrate impact.

Ensure resume is error-free and professionally formatted for positive first impression. Keep resume to one page if possible for students to maintain focus and readability. Save resume in multiple formats including PDF and Word for different application systems. Well-prepared resume effectively communicates your qualifications and potential to employers.

Cover Letter Writing: Demonstrating Interest and Fit

Compelling cover letter writing demonstrates your interest and fit for the internship. Research specific internship role and requirements to customize your letter effectively. Customize cover letter for each internship application to show genuine interest. Address cover letter to specific person when possible to personalize your application.

Write compelling opening paragraph that captures attention and shows enthusiasm. Explain why you are interested in this specific internship to demonstrate research and fit. Highlight relevant skills and experiences that match requirements to show qualification. Demonstrate knowledge of company and industry to show preparation.

Explain what you can contribute to the organization to show value. Write strong closing paragraph with call to action expressing your interest. Proofread cover letter for errors and clarity to ensure professionalism. Well-written cover letter complements your resume and demonstrates your communication skills and interest.

Application Submission: Ensuring Completeness and Accuracy

Careful application submission ensures your application is complete and accurate. Review application instructions carefully to follow all requirements. Complete all required application fields accurately to avoid delays or rejection. Upload resume and cover letter in correct formats as specified.

Include portfolio or work samples if requested to showcase your work. Provide accurate contact information to ensure you can be reached. List references if requested, ensuring you have permission from references. Answer application questions thoughtfully and completely to demonstrate your qualifications.

Review entire application before submission to catch any errors or omissions. Submit application before deadline to demonstrate professionalism and organization. Save confirmation of application submission for your records. Proper application submission ensures your materials are received and considered.

Interview Preparation: Showcasing Your Potential

Effective interview preparation showcases your potential and readiness. Research company thoroughly before interview to demonstrate knowledge and interest. Review job description and internship requirements to prepare relevant examples. Prepare answers to common interview questions to respond confidently.

Prepare examples of your work and achievements using STAR method (Situation, Task, Action, Result). Prepare thoughtful questions to ask interviewer to show engagement and interest. Practice interview responses out loud to build confidence and fluency. Prepare professional attire to make positive impression.

Test technology if virtual interview to ensure smooth experience. Plan route and timing if in-person interview to arrive on time. Prepare portfolio or work samples to discuss if relevant. Well-prepared interview performance demonstrates your professionalism and potential.

During Interview: Making Positive Impression

Professional interview performance makes positive impression on employers. Arrive early or log in early for virtual interview to demonstrate punctuality. Dress professionally and appropriately to show respect and professionalism. Maintain eye contact and positive body language to show confidence and engagement.

Listen carefully to questions and answer thoughtfully to demonstrate communication skills. Use STAR method for behavioral questions to provide structured, compelling answers. Demonstrate enthusiasm and interest in the role to show motivation. Ask thoughtful questions about the internship to show engagement.

Discuss your relevant skills and experiences to demonstrate qualification. Express what you hope to learn and contribute to show growth mindset. Thank interviewer for their time and opportunity to show appreciation. Professional interview performance significantly increases your chances of receiving offer.

Follow-Up: Maintaining Communication

Professional follow-up maintains communication and demonstrates continued interest. Send thank you email within 24 hours of interview to show appreciation and professionalism. Personalize thank you note with specific interview details to show attentiveness. Reiterate your interest in the position to reinforce your enthusiasm.

Follow up if you haven't heard back within stated timeframe to show continued interest. Maintain professional communication throughout process to demonstrate professionalism. Respond promptly to any requests for additional information to show responsiveness. Keep track of application status and follow-up dates to stay organized.

Continue applying to other opportunities while waiting to maximize your options. Handle rejection gracefully and professionally to maintain relationships. Request feedback if application is unsuccessful to learn and improve. Proper follow-up demonstrates professionalism and can influence hiring decisions.

Additional Considerations: Building Professional Presence

Strategic additional considerations build your professional presence and enhance applications. Build professional online presence with complete LinkedIn profile. Network with professionals in your field of interest to learn and discover opportunities. Attend career fairs and networking events to make connections.

Seek recommendations from professors or previous employers to strengthen applications. Develop relevant skills through courses or projects to enhance qualifications. Create portfolio showcasing your work and projects to demonstrate capabilities. Practice professional communication and email etiquette to make positive impressions.

Research internship compensation and benefits if applicable to make informed decisions. Prepare for potential background checks or reference checks. Stay organized with application tracking spreadsheet to manage multiple applications. These additional efforts enhance your applications and build your professional reputation.

Internship applications are competitive process that requires preparation, persistence, and professionalism. By following this comprehensive checklist, you can approach internship applications systematically and maximize your chances of success. Remember that each application is learning opportunity, and persistence combined with quality applications leads to success. For additional guidance, explore our internship preparation resources, job application guides, resume writing strategies, and interview preparation approaches.

Internship Preparation Checklist

Complete guide for internship preparation covering skills, expectations, and all essential internship preparation steps.

Job Application Checklist

Comprehensive guide for job applications covering resume, cover letter, and all necessary job application steps.

Resume Writing Checklist

Essential guide for resume writing covering format, content, and all necessary resume writing steps.

Interview Preparation Checklist

Complete guide for interview preparation covering research, practice, and all essential interview preparation steps.

Sources and References

The following sources were referenced in the creation of this checklist: