What an internship is actually worth

If you asked me to name the single most consequential line on a graduating student’s résumé, it would not be the degree, the institution, or the grade. It would be whether they were paid to do the work before they were paid to do the job.

The numbers

The pay gap that follows is wider than the offer gap. Paid interns reported a median starting salary of $62,500. Unpaid interns reported $42,500. That is a twenty thousand dollar difference attached to whether the earlier work was compensated.

The retention data points the same way. Interns who converted to employees were still with the organisation after a year 75.5% of the time, against 51.5% for hires who had not interned there. Between half and sixty percent of eligible interns convert to full-time roles.

The caveat I am obliged to give you

Every figure above is observational and self-reported. Students who land paid internships are not a random sample. They differ by field, by institution, by family resources, and by prior advantage, and all of those independently predict offers and salary.

So the correct sentence is that students who held paid internships reported better outcomes, not that an internship causes a twenty thousand dollar raise. I am a physician; I spend my working life around the difference between association and causation, and I am not going to abandon it because the tidier version would be more persuasive.

What survives the caveat is still substantial. Whatever mixture of causation and selection is at work, the paid internship sits at the centre of it.

The baseline has also moved. The share of graduating seniors reporting an internship rose from 50% in 2011 to 63% in 2021. What was once an advantage is closer to an expectation now, which changes what it costs to arrive without one.

Who is missing from the pipeline

The distribution is the part that ought to bother institutions. First-generation students were 26.7% of graduating seniors and only 20.5% of paid interns, while making up a third of students who held no internship at all.

Which means the mechanism that most improves early outcomes is least available to the students who would benefit most. That is the exposure gap with a number attached.

What to do about it

1. Start a year earlier than feels sensible. Most students begin looking in the semester they need one. The pipeline fills before that.
2. Take the paid one. If the choice is a prestigious unpaid role or a paid ordinary one, the numbers favour the paid ordinary one.
3. Treat it as a long interview, because it is one. Half to sixty percent of eligible interns are offered full-time roles.
4. Use employer referrals where you can. They are how a meaningful share of interns are sourced, and referral is the route that converts.

Employers agree on the value: 80% of surveyed employers rated internships their best return on investment among recruiting strategies. They are not being generous. They are buying a year of evidence before making an expensive decision, which is exactly what you should be doing too.