How to Delete Your DNA Data from Testing Sites

You took a DNA test a few years ago, got your results, and moved on. Now you want your genetic data gone.

Maybe a company you trusted was sold or breached. Maybe you just changed your mind about who should hold the code that makes you you.

The good news: most testing sites let you delete your data and destroy your sample. The honest news: deletion is rarely as complete as it sounds, and the sooner you do it, the more of it actually sticks.

Here's how to do it properly — and what you can't get back.

Before You Delete: Export What You Want to Keep #

Deletion is permanent, and it usually takes your results with it — ethnicity estimates, match lists, and any raw genotype file.

If there's anything you want to keep, download it first:

Your raw DNA file. Most providers let you export a raw data file from your account settings. Keep it somewhere private and offline if you want the record without leaving it on their servers.

Your matches or notes. These often can't be exported cleanly. Screenshot or copy anything that matters to your research before you pull the trigger.

Once you delete, assume none of it comes back.

Deleting Your Data, Provider by Provider #

The exact wording changes as companies update their sites, so treat these as the general path rather than fixed instructions — check the current settings of your provider.

23andMe. Sign in, open Settings, scroll to the account section, and look for the option to delete your account and data. You'll usually get a confirmation email you have to click. In the same area you can typically withdraw research consent and ask for your stored sample to be discarded.

AncestryDNA. Under your DNA settings, there's usually a Delete Test Results option, separate from deleting your Ancestry account itself. You can also request destruction of the physical sample. Deleting DNA results doesn't automatically close your family-tree account — those are handled separately.

MyHeritage, FamilyTreeDNA, and others. The pattern is the same: an account or DNA settings page with a delete option, a confirmation step, and — usually as a separate request — physical sample destruction. If you can't find it, their support team can trigger deletion, and privacy law in many regions requires them to honor a deletion request.

Two settings are easy to miss, so handle them explicitly:

• Research consent — withdraw it, separately from deleting data. Withdrawing consent stops future use; it doesn't always undo past use.
• The physical sample — most companies store your saliva by default. Ask for it to be destroyed, or they may keep it.

What Deletion Can't Undo #

This is the part the "Delete" button doesn't tell you.

Data already shared is often gone from your control. If your genotype was shared — de-identified or not — with a research or pharmaceutical partner before you deleted, that copy may live outside the account you just closed. Deleting your account can't reach into a third party's dataset.

Aggregated data may stay. Once your DNA has been folded into a larger statistical model or reference panel, pulling out your individual record often doesn't remove its contribution.

Relatives' matches don't reset. The connections your test created with other people don't disappear just because you left. This is the hard truth we covered in Is DNA Testing Safe for Genealogy? — a genome exposes more than one person, and one deletion doesn't fully un-expose the rest.

Deletion is still worth doing. It cuts off future use, closes the door on new sharing, and removes the biggest target. Just go in knowing it's a reduction of risk, not a full rewind — the same gap between owning your data and controlling it that we wrote about in Who Owns Your Family Tree Data?

Doing Genealogy Without Handing Over DNA Again #

Deleting your data doesn't mean the end of your research. It's a good moment to remember that DNA was never the foundation of genealogy in the first place.

Records, census data, church books, immigration files, documents, photos, and the memories of living relatives are what build a real, deep family tree. DNA is an add-on. You can keep going — and keep going far — without mailing off another sample.

What that research needs is a home that doesn't repeat the problem you just cleaned up: private by default, not part of anyone's matching network or research dataset. That's the idea behind end-to-end encrypted family tree storage — no public profiles, no genome to leak, just your family's history under your control. famstory is built around exactly that. (To be clear: famstory doesn't offer DNA tests — it's the private place your research lives.)

You can't fully un-take a DNA test. But you can delete what's deletable, stop the future sharing, and decide that from here on, your family's story lives somewhere only you control.

FAQ #

How do I delete my DNA data from 23andMe or Ancestry? #

Sign in, open your account or DNA settings, and use the delete option — usually with an email confirmation step. Separately, withdraw research consent and request destruction of your physical sample. Check each provider's current settings, as the exact steps change.

Does deleting my account remove all my DNA data? #

Not always. Deletion stops future use and removes your account record, but data already shared with research partners or folded into aggregated datasets may not be fully recoverable. Delete as early as possible to limit how much has already been used.

Can I still do genealogy after deleting my DNA data? #

Yes. Records, census data, church books, documents, and interviews with living relatives are the real foundation of family history. DNA is optional, not required.