IVF Age Limits: United States vs European Law
The United States has no federal age limit for IVF; each clinic sets its own, and most do not publish it. Several European countries set a maximum age by law or national guidance. The rules below are quoted from official legal or regulator sources for 7 jurisdictions, in the original language where applicable, checked Nov 2026.
Human Fertilisation and Embryology Authority (HFEA)
No BMI requirement set by the HFEA; no BMI limit in UK law“The HFEA is not a medical organisation, and therefore we do not set requirements on who should or should not be treated according to medical reasons, including body mass index (BMI). There are no limits based on BMI for fertility treatment in UK law. However, individual clinics may have their own policies relating to BMI.”Source: hfea.gov.uk/contact-us/frequently-asked-questions · checked Nov 2026
Clinic profiles: BMI may be listed as an eligibility criterion“Under this section there is an ‘eligibility’ section. Some clinics list BMI as an eligibility criterion, and some do not.”Source: hfea.gov.uk/contact-us/frequently-asked-questions · checked Nov 2026
NHS-funded IVF in England: BMI range most ICBs require“To be eligible for NHS funded IVF in England, most ICBs require an individual seeking fertility treatment to have a BMI of between 19 and 30.”Source: hfea.gov.uk/contact-us/frequently-asked-questions · checked Nov 2026
No age limit in UK law; clinics may set their own“There are no age limits for fertility treatment in UK law. However, individual clinics may have their own policies relating to age limits.”Source: hfea.gov.uk/contact-us/frequently-asked-questions · checked Nov 2026
Clinic compare tool shows upper age limits“If you use the ‘compare’ tool on the website, the table will show which clinics you are comparing have an upper age limit for treatment.”Source: hfea.gov.uk/contact-us/frequently-asked-questions · checked Nov 2026
NHS funding depends on where you live“Your eligibility to receive NHS funding for fertility treatment (and how much) depends on where in the UK you live. Scotland, Wales, Northern Ireland each have a set of criteria while in England the decision is made locally by Integrated Care Boards (ICBs)”Source: hfea.gov.uk/contact-us/frequently-asked-questions · checked Nov 2026
NICE recommendations are not binding on ICBs“The National Institute for Clinical Excellence (NICE) recommends what fertility treatments they think should be provided, and to whom. However these are only recommendations – ICBs are still free to make their own decisions.”Source: hfea.gov.uk/treatments/explore-all-treatments/costs-and-f… · checked Nov 2026
Licensed clinic search (URL: https://www.hfea.gov.uk/choose-a-clinic/clinic-search/)“On the Fertility clinic search page of our website you can search for licensed clinics by location and the type of treatment offered.”Source: hfea.gov.uk/contact-us/frequently-asked-questions · checked Nov 2026
National Institute for Health and Care Excellence (NICE) - fertility guideline
CG156 has been replaced by NG257“This guideline has been updated and replaced by NICE guideline NG257”Source: nice.org.uk/guidance/cg156/chapter/Recommendations · checked Nov 2026
NG257 (published 31 March 2026) rec 1.39.3: IVF offered up to the 42nd birthday“1.39.3 Offer IVF treatment to women, and trans men and non-binary people with female reproductive organs who have not yet reached their 42nd birthday”Source: nice.org.uk/guidance/ng257/chapter/Access-criteria-for-in… · checked Nov 2026
NG257 rec 1.39.6: under 40 years - 3 full cycles“1.39.6 If the woman, or trans man or non-binary person with female reproductive organs is under 40 years and meets the criteria in recommendation 1.39.3, offer an initial 3 full cycles of IVF treatment. If they reach their 40th birthday without conceiving, complete any current full cycle of IVF but do not offer any more cycles.”Source: nice.org.uk/guidance/ng257/chapter/Access-criteria-for-in… · checked Nov 2026
NG257 rec 1.39.9: aged 40 or 41 - 1 full cycle“1.39.9 If the woman, or trans man or non-binary person with female reproductive organs is 40 or 41 years, meets the criteria in recommendation 1.39.3 and has not had IVF treatment before, offer 1 full cycle of IVF treatment.”Source: nice.org.uk/guidance/ng257/chapter/Access-criteria-for-in… · checked Nov 2026
NG257 rec 1.9.1: advice for BMI of 30 or over (advice, not an access criterion)“1.9.1 Inform women, and trans men and non-binary people with female reproductive organs who have a body mass index (BMI) of 30 kg/m 2 or over: that they are likely to take longer to conceive, and that if they are not ovulating, losing weight is likely to increase their chance of conception.”Source: nice.org.uk/guidance/ng257/chapter/Advice-about-factors-t… · checked Nov 2026
NG257 rec 1.10.1: advice for BMI under 18.5“1.10.1 Advise women, and trans men and non-binary people with female reproductive organs who have a BMI of less than 18.5 kg/m 2 and who have irregular menstruation or are not menstruating that increasing body weight is likely to improve their chance of conception.”Source: nice.org.uk/guidance/ng257/chapter/Advice-about-factors-t… · checked Nov 2026
Spain - Ley 14/2006 and national public-system criteria
Ley 14/2006 art. 6.1: any woman over 18 with full legal capacity may use the techniques (minimum age only; no maximum stated)“1. Toda mujer mayor de 18 años y con plena capacidad de obrar podrá ser receptora o usuaria de las técnicas reguladas en esta Ley, siempre que haya prestado su consentimiento escrito a su utilización de manera libre, consciente y expresa.”Source: boe.es/buscar/act.php?id=BOE-A-2006-9292 · checked Nov 2026
Ley 14/2006 art. 6.2: woman must be informed of the risks of maternity at a 'clinically inadequate age' (no figure)“se incluirá, en todo caso, la de los posibles riesgos, para ella misma durante el tratamiento y el embarazo y para la descendencia, que se puedan derivar de la maternidad a una edad clínicamente inadecuada.”Source: boe.es/buscar/act.php?id=BOE-A-2006-9292 · checked Nov 2026
Orden SSI/2065/2014 (public system): women over 18 and under 40, men under 55, at the start of the sterility work-up“1.º Las mujeres serán mayores de 18 años y menores de 40 años y los hombres mayores de 18 años y menores de 55 años en el momento del inicio del estudio de esterilidad.”Source: boe.es/buscar/doc.php?id=BOE-A-2014-11444 · checked Nov 2026
Orden SSI/2065/2014 (public system): IVF with own gametes - woman under 40, maximum three stimulated cycles“1.º Fecundación in vitro con gametos propios: Criterios de acceso específicos para esta técnica: i) Edad de la mujer en el momento de indicación del tratamiento inferior a 40 años. ii) Ausencia de evidencias de mala reserva ovárica. iii) Límite máximo de ciclos de tratamiento: Tres ciclos con estimulación ovárica.”Source: boe.es/buscar/doc.php?id=BOE-A-2014-11444 · checked Nov 2026
Orden SSI/2065/2014 (public system): transfer of own cryopreserved embryos - woman under 50“En el caso de preembriones criopreservados para uso propio se aplicará el criterio específico de que las mujeres con esterilidad primaria o secundaria sean menores de 50 años en el momento de la transferencia”Source: boe.es/buscar/doc.php?id=BOE-A-2014-11444 · checked Nov 2026
Sociedad Española de Fertilidad patient FAQ: public-system age limit 40 for women, 55 for men“Rango de edad: Es necesario ser mayor de 18 años y el límite de edad máxima establecido para las futuras madres es de 40 años. La mujer debe ser menor de 40 en el momento del inicio del tratamiento. En el caso del varón, la edad límite son los 55 años.”Source: sefertilidad.net/?seccion=pacientesSEF&subSeccion=faqs · checked Nov 2026
Sociedad Española de Fertilidad patient FAQ: Madrid region has extended the limit to 45“La Comunidad de Madrid, por ejemplo, ha ampliado el límite de edad establecido hasta los 45 años.”Source: sefertilidad.net/?seccion=pacientesSEF&subSeccion=faqs · checked Nov 2026
Greece - Law 4958/2022 (National Authority of Medically Assisted Reproduction)
Law 4958/2022 art. 2: purpose - raise the women's age limit from the 50th to the 54th year“α) η αύξηση του ηλικιακού ορίου των γυναικών που δύνανται να προσφύγουν σε ιατρικώς υποβοηθούμενη ΕΦΗΜΕΡΙ∆Α T ΗΣ ΚΥΒΕΡΝΗΣΕΩΣ 5043Τεύχος A’ 142/21.07.2022 αναπαραγωγή από το πεντηκοστό (50ό) στο πεντηκοστό τέταρτο έτος (54ο) της ηλικίας τους,”Source: eaiya.gov.gr/wp-content/uploads/2022/09/Ν.-4958.2022.pdf · checked Nov 2026
Law 4958/2022 art. 3 (amending art. 4 of Law 3305/2005): for a woman the limit is 54 years and 0 days“Σε περίπτωση που το υποβοηθούμενο πρόσωπο είναι γυναίκα, ως ηλικία φυ- σικής ικανότητας αναπαραγωγής νοείται το πεντηκοστό τέταρτο έτος (54 έτη και 0 ημέρες).”Source: eaiya.gov.gr/wp-content/uploads/2022/09/Ν.-4958.2022.pdf · checked Nov 2026
Law 4958/2022 art. 3: from 50 years and 1 day to 54 years and 0 days only with a permit from the Authority“Σε γυναίκες ηλικίας πενήντα ετών και μίας ημέρας (50 έτη και 1 ημέρα) μέχρι πενήντα τεσσάρων ετών (54 έτη και 0 ημέρες) δύναται να εφαρμοσθεί μέθοδος ιατρικώς υποβοηθούμενης ανα- παραγωγής μόνο μετά από σχετική άδεια της Αρχής.”Source: eaiya.gov.gr/wp-content/uploads/2022/09/Ν.-4958.2022.pdf · checked Nov 2026
Czech Republic - Act No. 373/2011 Coll. on specific health services
Act 373/2011 s. 6(1), English translation hosted by the State Office for Nuclear Safety (version effective 1 July - 31 October 2017): woman's age must not exceed 49“(1) Artificial insemination can be performed on a woman of childbearing age if her age has not exceeded 49 years, based on a written request from a woman and man who intend to undertake this health service together”Source: sujb.gov.cz/fileadmin/sujb/docs/legislativa/zakony/373_20… · checked Nov 2026
VZP (public health insurer) notice dated 14 Dec 2015: 49-year limit for performing; insurance cover only until the 39th birthday“Z odborného hlediska je možno umělé oplodnění provést ženě v jejím plodném věku, pokud její věk nepřekročil 49 let. Úhrada z veřejného zdravotního pojištění je však možná jen do dne dosažení 39. roku věku ženy”Source: vzp.cz/o-nas/aktuality/nove-podminky-pro-umele-oplodneni · checked Nov 2026
Denmark - Act on assisted reproduction (lov om assisteret reproduktion)
Consolidated Act no. 902 of 2019, s. 6: no assisted reproduction where the woman who is to give birth is older than 45“§ 6. Assisteret reproduktion må ikke finde sted i de tilfæl ‐ de, hvor den kvinde, der skal føde barnet, er ældre end 45 år.”Source: retsinformation.dk/eli/lta/2019/902/pdf · checked Nov 2026
Bill L 75 (2023-24) explanatory notes: the ban applies to both public and private treatment“Forbuddet mod at behandle kvinder ældre end 45 år gælder både for fertilitetsbehandling i offentligt regi og i privat regi.”Source: retsinformation.dk/api/pdf/239640 · checked Nov 2026
Bill L 75 (2023-24) explanatory notes: limit expressed as 'as long as the woman has not turned 46'“så længe kvinden ikke er fyldt 46 år, svarende til aldersgrænsen for fertilitetsbehandling i Danmark.”Source: retsinformation.dk/api/pdf/239640 · checked Nov 2026
Bill L 75 (2023-24) explanatory notes: public clinics - referred before 40, treated until 41; private as a starting point until 45“På nuværende tidspunkt tilbydes fertilitetsbehandling på offentlige hospitalsklinikker til kvinder, der er henvist, inden de er fyldt 40 år, og der tilbydes behandling til kvinden er fyldt 41 år. Ved behandling i privat regi tilbydes som udgangspunkt behandling indtil 45 år.”Source: retsinformation.dk/api/pdf/239640 · checked Nov 2026
Executive Order no. 1452 of 2025 on assisted reproduction, s. 2: eggs may be stored until the woman turns 46“§ 2. Befrugtede og ubefrugtede menneskelige æg kan op- bevares indtil det tidspunkt, hvor den kvinde, der skal føde barnet, fylder 46 år, hvorefter æggene skal destrueres.”Source: retsinformation.dk/eli/lta/2025/1452/pdf · checked Nov 2026
Mexico - federal law on assisted reproduction
Supreme Court (SCJN) summary of Amparo en Revisión 619/2017: the 35-year limit was in one hospital's internal procedures manual“de acuerdo con el Manual General de Procedimientos de ese c entro médico, la edad 2 máxima de inclusión al programa del servicio de reproducción asistida es hasta los 35 años”Source: scjn.gob.mx/derechos-humanos/sites/default/files/sentenci… · checked Nov 2026
SCJN summary of AR 619/2017: criteria challenged distinguished by age (women 35, men 55)“al establecer distinciones basadas en la edad de los participantes (mujeres 35 años y hombres 55 años)”Source: scjn.gob.mx/derechos-humanos/sites/default/files/sentenci… · checked Nov 2026
United States
See CDC cycle volumes for patients over 40 and the age limits US clinics publish.
Laws change and clinics may apply stricter limits than the law allows. This is not legal advice.