Function Health Cost 2026: Price, Renewal, Discounts and Extras

Below: the price history, what renews and when, whether a promo code exists, what the daily-price line means, and what is billed on top. Every plan we track is ranked on the best blood tests page, and the full scorecard is on the Function Health review page.

What Function Health costs in 2026

The price cut: what changed

Function's own announcement says the membership price was cut on 20 November 2025 (the old and new figures are in the table above), and that the cut applies to new members, renewals and gifts. If you read an older review that quotes the earlier price, it is out of date. The live figure on this page comes from our price table, which we re-check against Function's pricing page. Our price table shows the date of each check.

A separate limited-time "Function Day" offer has also been advertised at times. Function's own page for that offer no longer loads, so we cannot confirm its terms, and we do not treat it as the standard price.

Does Function Health have a promo code?

Our Function Health discount codes page has the dated record and a log of codes we cannot verify. We found no promo or discount code on Function's pricing page or FAQ. Function's announcement says the price is the same "across the board" for new, renewing and gifted memberships, which leaves little room for a standing discount. Codes posted on deal sites are not published by Function, change without notice and may not work, so we do not list any. If you find one, check it at checkout against the price on Function's pricing page before paying.

What does the daily price actually buy?

The daily line on the pricing page is the yearly charge divided by the days in a year, shown beside "Charged annually". You are not billed daily. You pay once a year and get two testing windows, the full panel and a mid-year retest. Function's FAQ says the mid-year test must be used "before your annual renewal" and does not roll over, so skipping it wastes that part of the price.

What costs extra

• New York and New Jersey. Function's FAQ says testing there "can cost more due to state regulations". The amount is not published. See our Function Health New York cost guide.
• Add-on tests. Function says you can test any biomarker "on-demand anytime for an additional member-only cost".
• Imaging. Function's FAQ says membership "unlocks member pricing on imaging" rather than including it.
• At-home draws. Offered; the fee is not published.

Renewal, refunds and cancelling

Function's FAQ says: "Function does not offer refunds for prior payments." Pausing is not allowed, but "you can cancel and rejoin at any time". The membership renews annually, so set a reminder before the renewal date if you only want one year.

HSA and FSA

The IRS lists which medical expenses an HSA or FSA can reimburse in Publication 502.

Function's FAQ says the membership may be eligible: "check with your plan to confirm eligibility." Function tells members to use the itemized receipt, not the card payment confirmation. More providers are covered in our HSA and FSA guide.

Is it cheaper to order tests yourself?

For ten or so common tests once a year, a lab-test store can cost less than the membership; for breadth, Function costs less per marker than most stores. Our cheapest full panel guide prices a core panel store by store (you can check any lab on the CMS CLIA lookup), and the Function Health review covers what the panel measures.

Compare all plans on /best or see single-test prices on /cost.