IVF success rates in Australia decline significantly with age — women under 35 can expect a live birth rate of roughly 35–45% per embryo transfer, while women over 42 using their own eggs see rates drop below 10%. Understanding these numbers before choosing a clinic is one of the most important steps you can take as an informed consumer.
Why Age Is the Single Biggest Factor in IVF Success
If you've started researching IVF in Australia, you've probably noticed that every clinic seems to present its success rates slightly differently. Some lead with "clinical pregnancy rates," others with "live birth rates," and a handful quote cumulative success across multiple cycles. The most meaningful number — and the one you should always ask for — is the live birth rate per embryo transfer, broken down by your age group.
Age matters so profoundly because it directly reflects egg quality. As women age, eggs accumulate chromosomal abnormalities that prevent viable pregnancies. This isn't a clinic-specific limitation or a medical failure — it's fundamental reproductive biology. A 28-year-old and a 43-year-old walking into the same top-tier clinic with identical histories will have dramatically different outcomes, and any practitioner who suggests otherwise is worth approaching with scepticism.
The good news is that Australian clinics are required to report outcomes data through the Australian Institute of Health and Welfare (AIHW), which publishes the annual *Assisted Reproductive Technology in Australia and New Zealand* report. This gives consumers a reliable, nationally standardised benchmark that doesn't exist in many other countries.
The Real Numbers: Live Birth Rates by Age Group
Based on the most recent AIHW data (2023–24 reporting cycle, published 2025), here are the approximate live birth rates per embryo transfer for women using their own eggs in Australia:
- Under 30: 40–47% - 30–34: 35–43% - 35–37: 28–35% - 38–39: 20–27% - 40–41: 13–19% - 42–44: 7–12% - 45 and over: typically below 5%
These figures are national averages. Individual clinics may report slightly higher or lower results depending on their patient mix, laboratory technology, and whether they routinely perform preimplantation genetic testing (PGT). A clinic that treats a higher proportion of older patients or those with complex diagnoses may appear to have lower rates — but that doesn't necessarily mean they're performing worse than competitors.
According to the AIHW, Australia completed approximately 97,000 ART treatment cycles in the 2023–24 period, resulting in roughly 17,500 live-delivered babies — a figure that underscores both how common IVF has become and how many cycles do not result in a baby. Review our methodology for how we interpret and present these figures.
Donor Eggs: A Game-Changer for Older Patients
For women over 40 — particularly over 42 — using eggs donated by a younger woman can transform the odds dramatically. When a 43-year-old uses eggs from a 28-year-old donor, the live birth rate per transfer more closely resembles the donor's age group than the recipient's. Nationally, donor egg cycles in Australia show live birth rates in the range of 35–45% per transfer, largely irrespective of the recipient's age.
This is a significant clinical and emotional decision, and Australian law adds important context. All donor arrangements in Australia must be altruistic — payment beyond reasonable expenses is prohibited — and donors are required to agree to future contact with any resulting children once they turn 18. Clinics must register donors and recipients through state-based registers. Waiting times for known or clinic-recruited donors can range from several months to over two years depending on location and clinic.
If you are over 40 and considering IVF, ask your specialist early about donor egg pathways so you can plan realistically for timelines, not just medical eligibility.
Cumulative Success Rates: Thinking Beyond a Single Cycle
One cycle of IVF tells only part of the story. Most people who ultimately achieve a live birth through IVF require more than one transfer. Cumulative success rates — the probability of a live birth across multiple transfers from a single egg collection cycle — paint a more complete (and often more encouraging) picture.
Research published in peer-reviewed reproductive medicine journals suggests that after three complete embryo transfers from a single stimulated cycle, cumulative live birth rates for women under 38 can reach 60–70%. For women 38–40, cumulative rates across multiple transfers sit closer to 35–45%.
This is why many fertility specialists will discuss your "embryo banking" strategy from the outset — collecting multiple eggs over one or two stimulated cycles before beginning transfers. It's a longer upfront process but can improve overall odds meaningfully.
What IVF Costs in Australia in 2026
Medicare covers a portion of IVF costs through the Medicare Benefits Schedule, but out-of-pocket expenses remain substantial. Below is a general guide to 2026 pricing at major Australian clinic networks. Prices vary by location, individual protocol, and whether you hold private health insurance.
| Clinic Network | Medicare Rebate Applied | Approx. Out-of-Pocket Per Stimulated Cycle | Frozen Embryo Transfer (FET) Cost | |---|---|---|---| | Monash IVF | Yes | $3,800 – $5,500 | $1,200 – $2,200 | | Genea | Yes | $4,000 – $5,800 | $1,400 – $2,400 | | City Fertility Centre | Yes | $3,500 – $5,000 | $1,100 – $2,000 | | IVFAustralia | Yes | $4,200 – $6,000 | $1,300 – $2,300 |*Prices are indicative estimates for 2026 based on publicly available fee schedules and patient-reported data. Individual quotes will vary. Medication costs ($1,500–$3,500 per stimulated cycle) are in addition to the above.* See our full cost guide for a detailed breakdown of what Medicare covers and what it doesn't.
How to Evaluate a Clinic's Success Rate Claims
Not all success rate marketing is created equal. Here's what to watch for when comparing clinics:
Ask for age-stratified live birth rates. If a clinic only gives you an overall "pregnancy rate" or uses "clinical pregnancy" as its headline figure, push back. Clinical pregnancies include miscarriages; live births are what matter. Check AIHW-reported data directly. The AIHW publishes clinic-level data in its annual ART report. This is independent, government-collected data that clinics cannot manipulate. Comparing a clinic's marketing claims to their AIHW figures is a useful sanity check. Understand patient mix. A clinic that specialises in complex or older-patient cases may have lower headline rates but actually deliver better care for your situation than a clinic optimising for straightforward cases. Look for accreditation. All legitimate Australian IVF clinics must be licensed under state legislation and meet standards set by the Reproductive Technology Accreditation Committee (RTAC).Find clinics that meet these standards in our directory of best IVF clinics in Sydney and other major cities.
Frequently Asked Questions
Q: At what age does IVF success drop most sharply? A: The most clinically significant decline occurs between ages 37 and 40, where live birth rates using your own eggs typically fall from the high 20s to the mid-teens per cent per transfer. After 42, rates drop below 10% using own eggs, which is why donor eggs are often recommended from this point. Q: Does the number of previous IVF cycles affect my success rate? A: Research suggests that success rates remain relatively stable across the first three to four cycles for patients who continue to produce good-quality embryos. However, if multiple cycles have failed, your specialist may recommend additional investigation — such as endometrial testing or PGT — before proceeding. Q: Is IVF success rate the same as pregnancy rate? A: No, and this distinction is crucial. Pregnancy rates (or clinical pregnancy rates) measure whether a foetal heartbeat was detected. Live birth rates measure babies actually born. Live birth rates are always lower due to miscarriage and early pregnancy loss. Always request live birth rates when comparing clinics. Q: Can lifestyle changes improve my IVF success rate? A: Evidence supports that stopping smoking, achieving a healthy BMI, limiting alcohol, and managing stress can modestly improve outcomes. However, no lifestyle intervention will substantially reverse age-related egg quality decline. Speak with your fertility specialist about what changes are most relevant to your individual situation.---
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