To donate sperm in the United States, you generally have to be at least 18 and under 40, though the exact cutoffs depend on the bank. Fairfax Cryobank and Seattle Sperm Bank accept donors from 18 to 39. California Cryobank runs a narrower window of 19 to 38. The American Society for Reproductive Medicine’s 2024 guidance recommends donors be of legal adult age in their state, ideally 21 or older, and says anyone under 21 should have a psychological evaluation first.1American Society for Reproductive Medicine. Guidance Regarding Gamete and Embryo Donation (2024) Age is only the first filter. Health, genetics, sperm quality, and a mandatory six-month quarantine all come after.
The Age Range at Major U.S. Sperm Banks
The industry clusters tightly around the same window. Most large banks open the door at 18 or 19 and close it at 38 or 39. A handful extend to the early 40s, but that’s the exception. If you’re 40 or older, most programs won’t take you regardless of your health.
The ASRM’s recommended floor is stricter than the legal one. Twenty-one is the age they consider ideal, and banks that accept younger donors often layer on extra screening to compensate.
Why the Age Limits Exist
The minimum age comes down to two things: legal capacity to consent and emotional maturity. Sperm donation can produce biological children you’ll never meet, and banks want donors who understand that before they sign anything.
The upper limit is medical. Sperm quality drops with age in ways that reach beyond fertility rates. Research has found that men over 45 are roughly 3.3 times more likely to have a child with autism compared to fathers around age 20, and the risk of schizophrenia in offspring rises by about 1.47 times for every decade of paternal age at conception.2Genes (Basel). Impact of Advanced Paternal Age on Fertility and Risks of Genetic Disorders in Offspring Older paternal age also correlates with higher rates of bipolar disorder and certain childhood cancers. That’s why banks draw the line well before 45.
What Else You Have to Qualify For Beyond Age
Being the right age gets you an application, not a spot in the program. Federal regulations require every reproductive tissue donor to sit for a documented interview covering medical history and any behaviors that raise communicable disease risk.3eCFR. 21 CFR 1271.75 – How Do I Screen a Donor The questions go well past a standard physical: sexual history, drug use, travel to areas with specific disease exposure, and contact with conditions like Creutzfeldt-Jakob disease all come up.
A donor must be ruled ineligible if they show risk factors for or clinical evidence of any relevant communicable disease. Intravenous drug use is a hard disqualifier. Most banks also expect a healthy weight, limited alcohol use, and no smoking, because body composition, alcohol, and tobacco all affect sperm count, motility, and DNA integrity.
Disease Screening
If you clear the interview, blood and urine testing follows. The FDA requires screening for a specific set of communicable diseases under 21 CFR 1271.85:4eCFR. 21 CFR Part 1271 Subpart C – Donor Eligibility
- HIV types 1 and 2
- Hepatitis B and C
- Syphilis (Treponema pallidum)
- Chlamydia
- Gonorrhea
A positive result on any of these makes your samples unusable.
Genetic Screening
Standard panels test for cystic fibrosis and spinal muscular atrophy at a minimum. Ethnicity-specific tests are added where relevant: donors of Ashkenazi Jewish descent, for example, are screened for Tay-Sachs disease, Canavan disease, and familial dysautonomia, among others.5ReproductiveFacts.org. Third-Party Reproduction Many banks now run expanded carrier panels covering dozens or hundreds of conditions. Chromosomal analysis isn’t universally required but most major programs offer it.
Sperm Quality
Banks also evaluate the semen itself. Count, motility, and morphology need to hit minimum thresholds, and samples have to survive freezing and thawing well. Freeze-thaw resilience is one of the biggest practical reasons applicants wash out. Plenty of healthy men in the right age bracket simply don’t produce samples that hold up in storage.
What Donating Actually Involves
After acceptance, you provide samples at the bank’s facility on a set schedule, typically once or twice a week. Every sample goes into quarantine for at least six months before it can be used. The FDA requires this waiting period so the bank can retest you afterward for communicable diseases that don’t show up on tests immediately.6Food and Drug Administration. Eligibility Determination for Donors of Human Cells, Tissues, and Cellular and Tissue-Based Products Only after the retest comes back clean are the samples cleared for use.
Even when you stop donating, the bank will ask you back at least six months after your last sample for exit testing. Some banks pay a bonus for completing that final appointment. Donor agreements also typically ask you to report significant medical developments that come up later, including any heritable condition diagnosed in you or a close family member.
What to Know Before You Sign Up
A few things about donation catch people off guard, and they’re worth knowing before you commit.
The pay is taxable. Sperm banks pay for your time, not for the sperm, and compensation at most major banks runs $75 to $200 per accepted sample. The IRS treats this as ordinary income. Starting with 2026 tax returns, banks must issue Form 1099-NEC if you earn $2,000 or more from a single bank in a calendar year, up from the previous $600 threshold.7Internal Revenue Service. Publication 1099 General Instructions for Certain Information Returns (2026) Income below that threshold is still legally taxable. Banks treat donors as independent contractors, so self-employment tax of roughly 15.3% may apply on top of regular income tax.
Paternity protection depends on going through a bank. The Uniform Parentage Act’s 2017 version states that a donor is not a parent of a child conceived through assisted reproduction, and about a half-dozen states have adopted it. Donating through a licensed sperm bank gives you the strongest legal shield because the bank acts as an intermediary and everything is documented. Informal arrangements are riskier: some states may treat a known donor outside a medical facility as a legal parent, with the child support obligations that follow.
Anonymity is eroding. Colorado banned anonymous gamete donation in 2022, with the law applying to children conceived from 2025 onward. Washington and California let donor-conceived adults request identifying information at 18, though donors can opt out. Most major banks now offer both anonymous and open-identity tracks, and open-identity demand keeps growing. Direct-to-consumer DNA testing has also made true anonymity difficult to guarantee regardless of what a contract says.
The number of families using your samples isn’t federally capped. The ASRM recommends 25 births per donor for every 800,000 people in the population, and individual banks set their own family limits. Enforcement depends on recipients voluntarily reporting births, which not all do. Some donor-conceived advocacy groups have documented cases where a single donor fathered far more children than guidelines suggest. You’ll have limited control over how widely your samples are distributed once you clear screening.