TL;DR: Stipend amount, signing bonuses, moving allowances, and summer funding gaps are often negotiable, especially with a competing offer in hand. Guaranteed multi-year funding structure and departmental policy items are usually not. The ask itself, done professionally, rarely damages the relationship — silence about a real gap is more likely to cause resentment later.
Why students assume they can't negotiate — and why that's usually wrong
Grad admissions offers can feel like take-it-or-leave-it propositions, especially compared to undergrad financial aid. In reality, departments have more flexibility than most incoming students assume, particularly for students who are also being considered by peer programs.
What's commonly negotiable
- Stipend amount, especially if you have a competing offer with a higher figure, even from a lower-ranked program
- Signing or relocation bonus, a one-time payment many departments can offer even when they can't raise the base stipend
- Summer funding, which is not guaranteed at every program and is often the easiest thing to add without touching the base stipend structure
- Startup or research funds for lab supplies, conference travel, or computing resources, particularly in STEM fields
- Teaching load reduction in the first year, to allow more research ramp-up time
What's usually not negotiable
- The overall funding guarantee structure (e.g., "5 years guaranteed" vs. "2 years guaranteed, competitive after") — this is typically a departmental policy, not something decided per-student
- Health insurance terms, which are usually set at the university level, not the department level
- Admission itself — you're negotiating the terms of an offer you already have, not trying to change a decision
How to actually ask
- Wait until you have a firm competing offer, or a clear, specific gap (e.g., "your stipend is $4,000 below the estimated cost of living in this city, and I have another offer at $X").
- Email your intended advisor or the graduate program coordinator directly, not admissions in the abstract. A short, factual, non-adversarial message works best: state the situation, name the specific ask, and express genuine continued interest in the program.
- Be specific about the number or benefit, not just "can you do better." A concrete ask is easier for a department to act on quickly.
- Give a reasonable decision deadline if you're weighing multiple offers, and communicate it clearly so the department isn't guessing at your timeline.
A sample framing that works
"Thank you again for the offer — I'm genuinely excited about the possibility of working with [advisor/lab]. I wanted to raise that [specific offer/cost gap], and ask whether there's any flexibility on [stipend/summer funding/moving costs]. I understand if this isn't possible, and either way I remain very interested in the program."
This framing does two things at once: states the ask clearly, and makes clear that a "no" won't end your interest — which removes most of the risk that asking could be read as an ultimatum.
The bottom line
Departments would rather retain a strong admit with a modest funding adjustment than lose them entirely, in most cases. Asking professionally, once, with a specific and reasonable request, very rarely backfires — the more common regret students report is not asking at all.