How Do You Do a DNA Test on a Dog? A Simple Step-by-Step Guide

September 29, 2025 |

Understanding your dog’s genetics equips you to plan for their future, potentially averting costly vet bills and supporting their health proactively. For breeders, knowing your dog’s genetics reduces the risk of producing puppies with inherited conditions, guiding your choice of mating partners.

Have you ever looked at your furry friend and wondered what breeds are hiding in their family tree? Or maybe you’re concerned about potential health issues that might be lurking in their genes? I’ve been there too! Dog DNA testing has become super popular among pet parents like us, and for good reason. It’s fascinating to unravel the mystery of our dog’s genetic makeup!

At Tailwise, we’ve put together this comprehensive guide to walk you through exactly how to DNA test your dog, from choosing the right kit to understanding those exciting results when they arrive Let’s dig in!

Why Should You DNA Test Your Dog?

Before we jump into the “how,” let’s quickly talk about the “why.” There are several compelling reasons to consider DNA testing for your four-legged family member:

  • Discover breed mix – Find out exactly what breeds make up your mixed-breed pup
  • Health screening – Identify potential genetic health risks before symptoms appear
  • Understand behaviors – Gain insights into breed-specific traits and tendencies
  • Customize care – Tailor diet, exercise, and training to your dog’s specific needs

I was surprised when I tested my “lab mix” only to discover she had zero Labrador Retriever DNA! Understanding her actual breed composition helped me better address her specific needs.

Choosing the Right DNA Test Kit

The first step in DNA testing your dog is selecting the right test kit. Not all kits are created equal, and prices can range from $60 to $200 depending on what you’re looking for.

When shopping for a DNA test kit, consider these factors:

  • Breed database size – More breeds = more accurate results
  • Health screening options – Some tests only identify breeds, while others screen for genetic health conditions
  • Company reputation – Look for established companies with positive reviews
  • Price point – Balance your budget with the depth of information you want

Popular options include Embark, Wisdom Panel, and DNA My Dog. I’ve personally used Embark and was impressed with their comprehensive results and user-friendly interface.

What’s Inside a Dog DNA Test Kit?

Once you’ve selected and purchased your kit, it will arrive with everything you need to collect a DNA sample from your dog. A typical kit includes:

  • DNA collection swabs (usually 2)
  • Collection tubes with preservation solution
  • Detailed instructions
  • Prepaid return mailer
  • Activation code or registration information

The process is surprisingly simple and completely painless for your pup!

Step-by-Step Guide to DNA Testing Your Dog

Now let’s get to the main event – exactly how to collect that DNA sample and get it analyzed.

Step 1: Register Your Kit

Before you do anything else, register your kit online using the unique code provided. This connects your dog’s sample to your account so you can view the results later. Some companies won’t process your sample until you’ve completed this step, so don’t skip it!

Step 2: Prepare for Collection

For the most accurate results, follow these preparation tips:

  • Don’t let your dog eat or drink for at least 30 minutes before testing
  • Keep other pets away during collection to avoid contamination
  • Wash your hands thoroughly before handling the swabs
  • Have treats ready as a reward (but only give them after collection!)

Step 3: Collect the DNA Sample

This is the most crucial part of the process! Here’s how to do it properly:

  1. Open the collection tube but don’t remove the swab yet (you can use the tube as a handle)
  2. Show your dog a treat to get them slobbery (but don’t let them eat it yet)
  3. Gently swab the inside of your dog’s cheek – roll the swab between your dog’s gum and cheek for 30-60 seconds
  4. Target the area under their tongue as well, as this contains a lot of DNA-rich saliva
  5. Avoid touching the swab tip with your fingers to prevent contamination

Embark recommends swabbing for a full 60 seconds to ensure adequate DNA collection. The most common reason for inconclusive results is insufficient DNA, so take your time with this step!

Step 4: Prepare the Sample for Shipping

Once you’ve collected the sample:

  1. Place the swab back into the collection tube
  2. Securely cap the tube (this is important to preserve the DNA!)
  3. Shake the tube for about 10 seconds to mix the sample with the stabilization solution
  4. Place the tube in the provided return package

Step 5: Mail Your Sample

Use the prepaid shipping envelope included in your kit to send your sample to the testing lab. It’s a good idea to track your package if possible, just for peace of mind.

Step 6: Wait for Results

Now comes the hardest part – waiting! Processing times vary by company:

  • Most results arrive within 2-4 weeks
  • More comprehensive health screenings might take longer
  • You’ll typically receive an email notification when your results are ready

While waiting, I like to research the potential breeds that might appear in my dog’s results. It makes the reveal even more exciting!

Understanding Your Dog’s DNA Test Results

When your results finally arrive, you’ll typically have access to an online dashboard with detailed information about your dog’s genetic makeup.

Breed Information

The breed breakdown is usually presented as percentages, showing which breeds make up your dog’s DNA. For example, your results might show:

  • 50% Border Collie
  • 25% Australian Shepherd
  • 12.5% Labrador Retriever
  • 12.5% mixed breed

Some tests will even break down “mixed breed” portions further, identifying traces of breeds from your dog’s more distant ancestors.

Health Markers

If you opted for a health screening, your results will include information about genetic markers associated with various health conditions. These aren’t predictions that your dog will definitely develop these conditions, but rather indicators of genetic predispositions.

Always consult with your veterinarian to interpret these health results properly. They can help you develop a proactive healthcare plan based on your dog’s genetic profile.

Tips for Getting Accurate Results

To ensure the most accurate DNA test results for your pup:

  • Follow the kit instructions exactly
  • Collect a robust sample by swabbing for the full recommended time
  • Avoid contamination from humans or other pets
  • Register your kit promptly
  • Mail your sample as soon as possible after collection

Common Questions About Dog DNA Testing

Is DNA testing painful for my dog?

Not at all! The collection process simply involves swabbing the inside of your dog’s cheek, which is completely painless. Most dogs tolerate it very well, especially if treats are involved afterward!

How accurate are dog DNA tests?

The leading dog DNA tests claim accuracy rates of 95-99% for breed identification. Health screening accuracy varies by condition and test provider. Generally, the more expensive tests with larger breed databases offer higher accuracy.

Can I test a puppy?

Yes! You can DNA test a puppy at any age. The collection process is the same regardless of age, though you might need to be a bit more gentle and patient with very young puppies.

What if my dog won’t cooperate?

If your dog is resistant to the swabbing process, try these tips:

  • Have someone help hold your dog still
  • Swab when your dog is calm, like after a walk
  • Break the process into shorter sessions if needed
  • Use high-value treats as motivation

Should You DNA Test Your Dog?

In my opinion, DNA testing is absolutely worth it for most dog owners. The insights you gain about your dog’s breed composition and potential health concerns can help you provide better, more tailored care for your best friend.

Plus, there’s something magical about unlocking the mystery of your dog’s genetic history! I still remember the excitement of opening my dog’s results and being completely surprised by what I found.

For around $100-$200, it’s an investment that provides valuable information you’ll use throughout your dog’s life. And let’s be honest – we’d spend that much on dog toys and treats without thinking twice!

Have you done a DNA test on your dog? We’d love to hear about your experience in the comments below! And if you have any questions about the process, feel free to ask. At Tailwise, we’re always happy to help fellow dog lovers understand their furry companions better.

Now go grab that DNA kit and discover what makes your pup genetically unique!

how do you do a dna test on a dog

Test your dog with The Kennel Club’s DNA Testing Services

Our DNA Testing Services offers a simple and cost-effective way to DNA test your dog for the priority DNA tests for their breed. Your browser does not support iframes. You can

Find out which health tests and screening schemes are relevant to your breed on our Breeds A to Z.

With our breed-specific packages, you can check your dog for a number of different genetic mutations all at the same time, making health testing easy and saving you from organising individual tests from several different laboratories.

We offer wide selection of individual DNA tests. Ideal for when a full breed-specific package isnt necessary, these tests let you select exactly what tests your dog requires.

What is a DNA Profile?

A DNA profile gives you a unique genetic code for your dog – a little like your dog’s very own genetic fingerprint. This allows your dog’s DNA to be accurately identified and can be used for parentage analysis. Unlike other types of identification, a DNA profile stays the same throughout your dog’s entire life and cannot be lost, manipulated or destroyed.

Find out more about our profiling service here.

How to swab your dog for a Wisdom Panel™ DNA test