Most US sperm banks accept donors between 18 and 40, with the exact cutoff varying by program. Age is a hard cutoff at every bank and the first thing worth checking before you spend time on an application.
Below are the verified age ranges for every major US program, why banks set these limits, and what to do if you’re close to the upper cutoff.
Sperm Donor Age Requirements by Bank
| Bank | Minimum Age | Maximum Age |
|---|---|---|
| California Cryobank | 19 | 38 |
| Fairfax Cryobank | 18 | 39 |
| Xytex / DonateSperm.com | 18 | 38 |
| Seattle Sperm Bank | 18 | 40 |
| San Diego Sperm Bank | 21 | 40.5 |
| World Egg and Sperm Bank | 18 | 39 |
| Cryobank America | 18 | 40 |
Age ranges verified from official bank websites as of [PUBLISH DATE]. Contact each bank directly to confirm current requirements before applying.
A few things worth noting in the table. California Cryobank and Xytex both cut off at 38, making them the strictest on the upper end among major programs. San Diego Sperm Bank has the highest minimum age at 21, which rules out 18 to 20 year olds entirely. Seattle Sperm Bank and Cryobank America both accept donors up to 40, giving the widest upper window of any program in this list.
Why Do Sperm Banks Have a Maximum Age?
The upper age limit exists because sperm quality declines as men get older. The decline isn’t dramatic in a man’s twenties or early thirties, but it becomes measurable from the late thirties onwards across three key parameters:
- Motility: The percentage of sperm swimming correctly decreases with age.
- Morphology: The proportion of normally shaped sperm declines.
- DNA fragmentation: The rate of DNA damage in sperm increases, which raises the risk of miscarriage and certain developmental issues in offspring.
The American Society for Reproductive Medicine guidance on gamete donation informs the standards banks operate under. The American Association of Tissue Banks sets 39 as the industry standard maximum age for sperm donors, which explains why most programs cluster around that number. Banks that push to 40 or 40.5 are operating at the outer edge of what the industry considers acceptable.
Recipient demand also plays a role. Intended parents selecting a donor profile tend to prefer younger donors, which means older donor samples sell more slowly. Banks have a commercial incentive to keep their donor pool within an age range that moves efficiently through their inventory.
Why Do Sperm Banks Have a Minimum Age?
The minimum age of 18 exists primarily for legal reasons. Donor agreements are binding contracts that waive parental rights to any offspring conceived. Signing one requires full legal capacity as an adult. No bank will accept a donor who cannot legally enter into that agreement.
There’s also a practical element. Donation programs require a minimum commitment of 6 to 12 months of weekly visits. Banks prefer donors whose life circumstances are stable enough to honour that commitment. An 18 year old moving away for college mid-program is a common dropout scenario, which is part of why some banks push their minimum to 19 or 21.
San Diego Sperm Bank’s minimum of 21 is the strictest in the industry. California Cryobank sets 19 as their floor. Every other major program listed above accepts donors from age 18.
What If You’re Close to the Upper Age Limit?
This is the section most articles on sperm donor age skip entirely, and it’s the most practically useful one.
If you’re within two years of a bank’s upper cutoff, apply now. The screening process takes 6 to 10 weeks from initial application to formal acceptance. If you’re 36 and California Cryobank cuts off at 38, you have a reasonable window. If you’re 37, you need to move quickly. If you submit your application at 37 and turn 38 before you clear screening, the bank may close your application before you’ve made a single paid donation.
The timeline looks like this in practice:
- Online application submitted and reviewed: up to 2 weeks
- First visit and initial semen analysis: scheduled after application approval
- Medical and genetic screening: 4 to 8 weeks
- Formal acceptance: depends on lab turnaround
- First paid donation: 1 to 2 weeks after acceptance
Add it up and you’re looking at a minimum of 6 weeks from application to first paycheck, and often closer to 10. If you’re borderline on age, that timeline matters.
One important distinction: aging past the cutoff after you’re already an active donor is different from aging out during screening. Most banks will let you complete your agreed donation term even if you pass their upper age limit partway through. The cutoff applies to new applicants, not to donors already in the program. Confirm this with your specific bank before applying, but it’s the standard practice across the industry.
If the highest-paying banks cut off at 38 and you’re already past that, Seattle Sperm Bank and Cryobank America both accept donors up to 40. World Egg and Sperm Bank accepts up to 39. There are still viable programs available in that window.
Other Requirements to Be Aware Of
Age is one of five or six requirements you need to clear before you’re eligible to donate. Semen quality, location, education, health history, BMI, and legal work authorization all factor into eligibility. For the full breakdown of every requirement by bank, see our complete sperm donor requirements guide.
Frequently Asked Questions
What is the minimum age to donate sperm?
18 at most major US banks. California Cryobank sets the minimum at 19. San Diego Sperm Bank requires donors to be at least 21.
What is the maximum age to donate sperm?
It varies by bank. California Cryobank and Xytex cut off at 38. Fairfax Cryobank and World Egg and Sperm Bank accept up to 39. Seattle Sperm Bank, Cryobank America, and San Diego Sperm Bank accept up to 40 or 40.5. The industry standard set by the American Association of Tissue Banks is 39.
Can an 18-year-old donate sperm?
Yes, at most banks. Fairfax Cryobank, Seattle Sperm Bank, World Egg and Sperm Bank, and Cryobank America all accept donors from age 18. California Cryobank requires donors to be at least 19. San Diego Sperm Bank requires at least 21.
Can a 40-year-old donate sperm?
At some banks, yes. Seattle Sperm Bank and Cryobank America both accept donors up to age 40. San Diego Sperm Bank accepts up to 40.5. California Cryobank, Xytex, Fairfax, and World Egg and Sperm Bank do not accept new applicants at 40.
What happens if I reach the age limit while actively donating?
Most banks allow active donors to complete their agreed donation term even if they age past the program’s cutoff during it. The age limit applies to new applicants, not to donors already accepted into the program. Confirm this with your specific bank before applying.