This page is general health information, not medical advice. It cannot tell you whether you have an infection. A clinician can, and the testing options on this site are a good place to start.

If you want an answer quickly, a handful of clinics around Austin offer walk-in or same-day STD testing. But "same-day" means different things depending on the test. A rapid HIV test can often give a preliminary result in a short visit, while chlamydia, gonorrhea, and syphilis samples are usually sent to a lab, so those results typically take longer, even when the appointment itself happens the same day. This guide walks through how same-day testing works in Austin, what to bring, and which tests are more likely to give you a fast answer.

What "same-day" actually means for STD testing

Austin Public Health's Sexual Health Clinic at the RBJ Health Center notes that its Red Ribbon program includes a free, 20-minute walk-in express testing service for people without symptoms, which is one of the fastest options described by a local provider. That speed applies to HIV testing specifically. Tests for chlamydia and gonorrhea use a lab method called a nucleic acid amplification test, and syphilis testing uses a blood sample that is also processed in a lab, so a clinic can usually collect your sample the same day, but the result often comes back over the next several days rather than immediately.

Genital herpes is different again. Austin Public Health's clinic states it can only test for genital herpes if you have active symptoms, since the most reliable test method depends on swabbing a visible sore.

What to bring with you

A photo ID, if you have one. Some clinics ask for it at intake, though Texas law lets minors of any age consent to their own STI and HIV testing and treatment without a parent present, under the Texas Family Code.
Your insurance card, if you have coverage. Some Austin clinics bill insurance for lab work; others offer free or sliding-scale testing regardless of insurance status.
A way to pay any clinic fee, if one applies. Austin Public Health's Sexual Health Clinic lists a $30 fee that covers both testing and treatment.
A short mental note of your symptoms, if any, and roughly when you were last sexually active, since this helps the clinic decide which tests make sense for you.
Time. Walk-in visits can still involve waiting, especially during busy hours.

Step-by-step: getting same-day testing in Austin

Decide why you're testing. If you have symptoms, a clinician needs to examine you, not just run a standard panel. If you don't have symptoms but had a recent exposure or simply want routine screening, you're a candidate for walk-in testing at more locations.
Call ahead to confirm walk-in status and hours. Walk-in availability and hours can change. Kind Clinic's Koenig location lists walk-in testing for gonorrhea, syphilis, chlamydia, HIV, and Hepatitis C, but the clinic is closed on observed holidays and the first Friday of every month, so a quick call before you go can save a trip.
Ask what same-day testing includes at that location. Austin Public Health's Sexual Health Clinic describes its standard panel as HIV, syphilis, gonorrhea, and chlamydia testing, available by scheduling a clinic appointment online or by calling 512-972-5430.
Arrive during the clinic's posted walk-in or appointment hours. Austin Public Health's clinic is open Monday through Friday, 8 a.m. to 12 p.m. and 1 to 5 p.m.
Complete intake and sample collection. Depending on the test, this may mean a blood draw, a urine sample, or a swab. A clinician decides which samples are needed based on what you tell them.
Ask specifically which results you'll get that day versus later. A rapid HIV test may give a preliminary result during the same visit. Lab-based tests for chlamydia, gonorrhea, and syphilis typically do not.
Get clear instructions on how results will reach you. Ask whether the clinic calls, sends a secure message, or asks you to log into a portal, and ask what the clinic recommends if you don't hear back within the expected window.
Ask about next steps before you leave. If your test requires treatment, a clinician there can discuss what they'd prescribe and how partner notification works. In Texas, a physician can also prescribe treatment for a patient's partner without examining that partner first, under Texas Medical Board rules, which can make treating both people faster.

Where to find walk-in and same-day options

A few Austin-area providers are set up for walk-in or fast testing in different ways. Kind Clinic's Koenig Lane location offers walk-in testing for gonorrhea, syphilis, chlamydia, HIV, and Hepatitis C. Vivent Health's Austin location offers HIV testing at no cost, and its listing describes a rapid HIV test option; calling ahead is the clinic's recommended way to confirm walk-in testing hours. CommUnityCare's IDEALhealth program at the Hancock Health Center offers STI and HIV testing on a sliding fee scale. ASHwell's Austin clinic offers testing and treatment at no cost to patients but does not accept walk-ins, so an appointment is required there. UT Austin students can use a drop-in STI testing option through University Health Services for people without symptoms. Because hours, fees, and walk-in availability can change, it's worth confirming directly with the clinic or with Austin Public Health before you go. You can browse the full local testing list for addresses and services.

Common mistakes to avoid

Assuming every test is "rapid." A fast visit doesn't always mean a fast result. Ask which specific tests are read on-site versus sent to a lab.
Skipping the phone call. Walk-in hours, holiday closures, and insurance requirements vary by clinic and can change, so confirming ahead avoids a wasted trip.
Testing too soon after a possible exposure. Different infections have different windows before a test can reliably detect them. A clinician can tell you whether it makes sense to test now or wait and test again later.
Expecting a herpes test without symptoms. Austin Public Health's clinic only offers herpes testing when symptoms are present, which is consistent with how that test is generally used.
Forgetting insurance rules. Kind Clinic's policy requires patients with insurance to use it for lab costs, with assistance available for people who are uninsured or can't afford the cost.

Tips for a smoother visit

Go earlier in the day when possible. Walk-in slots can fill up, and later arrivals may face longer waits or get turned away before closing.
Write down any symptoms, their start date, and recent exposures beforehand so you don't have to recall details under pressure.
Ask directly how and when you'll get each result, since different tests may return on different timelines even from the same visit.
If cost is a concern, ask about sliding-scale or no-cost options before your visit. Several Austin providers, including Austin Public Health, CommUnityCare, and ASHwell, offer reduced-cost or free testing.

What your results can tell you

A test result, explained by the clinician who ordered it, can tell you whether a particular infection was detected at the time of testing. No test catches every case every time, which is why a clinician may recommend retesting after a window period or ordering a confirmatory test in certain situations. If you test positive for a bacterial infection like chlamydia, gonorrhea, or syphilis, a clinician can prescribe treatment that cures it. HIV, herpes, and HPV are not curable, but a clinician can discuss care and management options that help people stay healthy over the long term. For a fuller breakdown of where to get tested around the city and what different clinics charge, see this guide to STD testing locations and costs in Austin.

Same-Day STD Testing in Austin: Which Tests Give Fast Results