We understand the importance of establishing a child’s paternity. When an alleged father is unavailable, a sibling DNA test can be a reliable option to help determine paternity. At IDTO DNA, we take pride in providing accurate and affordable testing services to help families confirm biological relationships.

Below are our available DNA Sibling Testing options:

Full Siblings vs. Unrelated
This test checks whether two people share both biological parents or if they are not related at all.

Full Siblings vs. Half Siblings
This test checks whether two people who share the same mother also share the same biological father. Including the mother’s DNA sample can make results more accurate.

Half Siblings vs. Unrelated
This test checks whether two people with different mothers share the same biological father. For the best accuracy, it’s recommended to include DNA from one or both mothers.

How much is a DNA Test for siblings?

Pricing starts at $299.99. Below are IDTO DNA Sibling DNA Testing options.

Testing OptionsCostAdditional Person
At-Home Sibling DNA Test (2 People)Starts at $299.99$125.00
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Legal Sibling DNA Test(2 People)Starts at $499.99$125.00

At-Home Sibling DNA Test Kit (Peace of Mind):

This testing option is an informational test to help determine if two individuals share one common biological parent or both parents. Home Sibling DNA Testing cannot be used for any legal purpose.

DNA Test Sample Collection Kit Contents

  • 4 sterilized buccal swabs (2 swabs per person)
  • Sample collection instructions
  • Contact identification form
  • Prepaid overnight FedEx return shipping envelope

New York Resident Restrictions:

Please note that New York State (NYS) residents cannot perform at-home DNA tests due to New York State Department of Health (NYSDOH) guidelines. In NYS, only legal DNA testing is permitted, and it requires a prescription referral from a doctor licensed in the state

Getting Started: How The Process Works

  • Discreetly Order Your Kit online or call 888-204-0583. We ship your kit within 24 hours.
  • Self-Collect Your Sample: Follow the included instructions to collect your cheek swab or forensic samples
  • Ship Your Samples: Securely place all contents into the provided prepaid FedEx return envelope.
  • Receive Your Results: Expect results within 2-3 business days after processing. You’ll receive a confidential report via email and physical mail.

A legal sibling test is a DNA testing option that requires a strict chain of custody. DNA samples must be collected by an independent third-party sample collector, and the analysis is performed by our partner AABB-accredited DNA laboratory. This accreditation ensures your results will be accepted by immigration agencies and family courts nationwide.

Where Can I get DNA Test appointment?

Call 888-204-0583 to schedule or to learn more about scheduling an appointment near a city near you. Below is a states we offer services.

  • Alabama
  • Arizona
  • Arkansas
  • California
  • Colorado
  • Connecticut
  • Delaware
  • Florida
  • Georgia
  • Hawaii
  • Idaho
  • Illinois
  • Indiana
  • Iowa
  • Kansas
  • Kentucky
  • Louisiana
  • Maine
  • Maryland
  • Massachusetts

  • Michigan
  • Minnesota
  • Mississippi
  • Missouri
  • Montana
  • Nebraska
  • Nevada
  • New Hampshire
  • New Jersey
  • New Mexico
  • New York
  • North Carolina
  • North Dakota
  • Ohio
  • Oklahoma
  • Oregon
  • Pennsylvania
  • Rhode Island
  • South Carolina
  • Tennessee
  • Texas
  • Utah
  • Vermont
  • Virginia
  • Washington
  • West Virginia
  • Wisconsin

What type of samples are used for DNA Testing?

The standard method of collection is performed by cheeks swabs. Blood samples are a secondary viable sample collection option that is more expensive, invasive and painful.

Alternative Forensic Sample Options:

Below is a list of forensic DNA samples that can be used when an alleged sibling is unavailable to provide a swab sample.

  • Blood Stain (99% accuracy)
  • Whole Blood (99% accuracy)
  • Hair Follicles (95% accuracy)
  • Toothbrush (95% accuracy)
  • Earwax (95% accuracy)
  • Semen (95% accuracy)
  • Gum (95% accuracy) sugar free recommended

Please note, testing of forensic samples do not guarantee DNA profiles will be extracted from your samples. The lab has no control of how DNA samples submitted are handled and stored. We recommend that you contact our office to consult one of our DNA Consultants to confirm best sample collection handling requirements.

Frequently Asked Questions

How long does it take to receive your DNA results?

Result turnaround times for both legal and non-legal tests is 2 to 3 business days from the date lab receives all genetic samples.

Once testing is completed a copy of your results will be mailed to your home and additional copy will be emailed to you.

Are At-Home Sibling Test results accurate?

Yes. All DNA specimens submitted are tested and analyzed by our partner AABB accredited DNA laboratory. Samples are tested on a minimum of 22 genetic markers.

Can a DNA Test for siblings be performed in different locations?

Yes. We can schedule in-office appointments at two different locations, or we can ship DNA test kits to separate addresses. If you choose the multiple-location shipping option during checkout, we will follow up by email to confirm the secondary address.

Call 888-204-0583 to schedule an appointment or to order Home DNA Test kit here.

Why Choose Us IDTO DNA

Since 2004, IDTO DNA has been a trusted resource for legal and medical professionals who require reliable sibling DNA testing. Our knowledgeable staff will guide you in selecting the correct genetic test for your specific situation. This careful attention ensures you get the right test the first time, saving you the hassle and cost of re-testing.

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