How Much Does a Paternity Test Cost?

If you are trying to establish who a child's legal father is, one of the first practical questions is money: what does a paternity test actually cost, and who has to pay for it? The short answer is that it depends heavily on whether you need a simple answer for yourself or a result a court will accept. For a focused explanation, read what If the Mother Refuses a Paternity Test.

The Two Kinds of DNA Tests, and Why the Price Gap Is So Wide

Not all paternity tests are built the same, and the difference shows up in the price. A private, over-the-counter DNA kit is the inexpensive option. You order it online or pick it up at a pharmacy, swab the inside of the cheek at home, mail the samples back, and get results in a matter of days. These kits are commonly priced from around fifty dollars to a couple hundred dollars, depending on turnaround time and the lab. For a parent who simply wants to know the biological truth for personal peace of mind, this is usually enough.

The problem is that a home kit answers a personal question, not a legal one. Because nobody verified who actually provided the samples, a court has no way to trust that the cheek swab in the envelope came from the man named on the form. That is why a legally usable test costs more.

A court-admissible test uses what is called a chain of custody. A neutral third party, often a lab technician or an approved collection site, checks each person's government identification, confirms who they are, collects the samples in person, and documents every step so there is no gap where the samples could have been swapped or tampered with. That added layer of verification and documentation is what makes the result reliable enough for a judge, and it is also why these tests typically run higher, often in the range of several hundred dollars once collection fees and administrative costs are included. If you think there is any chance the results will end up in front of a court, whether for child support, a parenting plan, or adding a father to a birth certificate, the chain-of-custody test is the one that will hold up.

Who Pays for Genetic Testing When a Court Orders It

When paternity becomes a formal legal matter in Washington, the state's parentage statute, chapter 26.26A RCW, governs the process, and it addresses cost directly. Under RCW 26.26A.330, payment for the initial genetic testing must be made in advance, and the statute lays out who is responsible. The cost can be paid by a child support agency when that agency is providing services in the case, by the individual who requested the testing, by agreement among the parties, or as the court orders. In plain terms, the person asking for the test often fronts the money, but a judge has the authority to allocate the expense differently, and the parties are free to agree on their own split.

The statute also builds in a fairness mechanism. Under RCW 26.26A.330, if a child support agency pays for the testing up front, the agency may seek reimbursement from the genetic parent once that parent-child relationship is established. So the party who advances the cost is not always the party who ultimately bears it. Once the test confirms who the genetic parent is, that person can be ordered to pay the state back.

What This Means for a Snohomish County Family

For families in Snohomish County, the practical takeaway is to match the test to the goal. If two parents simply want to confirm biology privately and are on the same page, an inexpensive home kit may be all they need, and they can handle it without ever involving a court. But once the question of paternity is tied to legal rights and obligations, such as a parenting plan, a child support order, or establishing a legal father so the child can inherit or receive benefits, the home kit will not carry the weight. In that situation the chain-of-custody test, and often a court proceeding under chapter 26.26A RCW, becomes the right path.

It is also worth knowing that the cost of the test itself is usually a small part of the overall picture. Establishing legal parentage can affect child support, decision-making authority, residential time, health insurance, Social Security and survivor benefits, and inheritance. A few hundred dollars for testing is modest compared with what legal parentage settles for a child over the years that follow.

A Few Common Follow-Up Questions

People often ask whether they can just use their home kit result in court later. Generally, no, because the court needs assurance about who was tested, and a home kit cannot provide that chain of custody. If you already suspect the matter is heading toward a court, it is more efficient to start with the admissible test rather than pay twice.

Another common question is whether the mother's participation is required. Under RCW 26.26A.310, genetic testing of the woman who gave birth is not a required first step. The court can order testing of the child and the man whose parentage is being determined even if the mother is unavailable or declines to be tested, so the process does not stall simply because one party will not participate.

Finally, people ask what happens if they cannot afford the test. Because RCW 26.26A.330 allows the court to allocate the cost and, in some cases, allows a child support agency to advance it and seek reimbursement later, the expense can often be arranged in a way that does not require one parent to shoulder it entirely up front.

Getting the Test Right the First Time

Choosing the wrong test can cost you time and money, and in a matter as important as a child's legal parentage, doing it right the first time matters. If you are unsure whether you need a private test or a court-admissible one, or if you have already been served with paperwork asking you to submit to genetic testing, the Law Office of Chad Foster can help you understand your options and the process ahead. Reach out for a conversation about your situation.