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.

Cost keeps many people from getting tested. In Boston, it does not have to. Several clinics offer free testing, and others charge on a sliding scale, which means the fee is based on what you can pay.

This guide walks you through finding cheap STD testing in Boston, asking about price, getting to your visit and understanding what happens afterward. It stays on the money question. For a wider look at every kind of testing option, see our guide to STD testing in Boston, where to get tested and what it costs.

What "sliding scale" and "free" mean

A sliding-scale clinic sets your fee by your income or your ability to pay. A free clinic charges nothing for the covered services. Some clinics bill your insurance if you have it and use grant funding if you do not.

These are different things, so the first job is to know which kind of clinic you are calling. The steps below show you how.

What you need before you start

A phone, since most Boston clinics take calls for scheduling and cost questions.
Your insurance card, if you have one. Having none is fine too.
A short list of any medicines you take and any symptoms you have noticed.
A rough idea of when your last test was and when your most recent possible exposure was.
A pen or notes app to write down the price quote, the date and the name of the person you spoke with.
A way to get to the clinic and about an hour of free time.

Each clinic sets its own rules about what to bring. Ask when you call whether you need photo identification or proof of income. Do not assume either way.

Step 1: Decide what kind of cost help you need

Start by sorting yourself into one of three groups.

No insurance: Look first at clinics that list free testing or a sliding scale.
Insurance with high out-of-pocket costs: Ask whether the clinic bills insurance, and whether a free or sliding-scale option exists instead.
Insurance you want to keep private: Ask how billing statements and results are handled before you book.

Knowing your group makes every later call shorter.

Step 2: Look at the Boston clinics that list low or no cost

These are the Boston-area options with published cost information. Hours and rules can change, so confirm by phone before you go.

Free testing

Boston STD Clinic at Boston Medical Center, 725 Albany St., 9th Floor, Suite 9C, Boston. Phone 617-414-2803. The clinic's page lists free routine testing for HIV, chlamydia, gonorrhea, syphilis and hepatitis C, plus cost assistance for people without insurance. The page does not say whether walk-ins are accepted, so call to make an appointment. The listed hours are Monday, Wednesday and Friday 9 a.m. to 4 p.m., and Tuesday and Thursday 9 a.m. to 7 p.m. The page also lists Tuesday with the shorter days, so confirm by phone.
Fenway Health Sexual Health Clinic, Ansin Building, 1340 Boylston Street, 4th floor, Boston. Phone 617-267-0159. Fenway's page lists walk-in hours, first come, first served: Tuesday 1 to 7 p.m., Wednesday and Thursday 3 to 7 p.m., and Friday 9 a.m. to noon. Monday 9 a.m. to 4 p.m. is by appointment only. Check-in closes 30 minutes before the end time. The clinic bills insurance if you have it, and Quest Labs bills insurance directly, so you are responsible for any Quest charges. People without insurance can be seen free through grant funding. The page is aimed at gay, bisexual and other men who have sex with men, transgender and gender diverse people, and their partners.
TrueCare@MAC testing at the Multicultural AIDS Coalition, 9 Palmer Street, Roxbury. Phone 617-442-1622. The coalition lists free STD, HIV and hepatitis C testing, with or without an appointment. Testing hours are listed as Monday, Tuesday, Thursday and Friday 10:30 a.m. to 4 p.m., Wednesday 12:30 to 6 p.m., and Saturday 11:30 a.m. to 3 p.m.
Boston Public Health Commission, 774 Albany St. Phone 617-534-3976. The CDC's GetTested directory lists free STD, HIV and hepatitis C testing here. The listing does not give hours, and it does not say whether walk-ins are accepted, so call first.

Sliding-scale testing

X-Clinic at Codman Square Health Center, 637 Washington St., Dorchester. Phone 617-822-8350. The clinic lists a sliding fee schedule, accepts all insurance, and offers testing and treatment regardless of citizenship status. Express visits, for people with no symptoms and no known exposure, are walk-in during operating hours. Codman's two pages list different schedules, so call to confirm. Help with coverage is at 617-822-8162.
Planned Parenthood League of Massachusetts, Greater Boston Health Center, 1055 Commonwealth Ave., Boston. Phone 617-295-7235. The CDC directory lists a sliding scale, acceptance of insurance, Medicaid and Medicare, and an appointment requirement.
DotHouse Health, 1353 Dorchester Avenue, Dorchester. Phone 617-288-3230. The CDC directory lists sliding-scale fees and acceptance of Medicaid and Medicare. It lists appointments as required, while another local resource list mentions walk-in testing through urgent care. Ask which applies on the day you want to go.

You can also compare all of these in one place on the local testing list.

Step 3: Call and ask the right cost questions

A five-minute call can prevent a surprise bill. Ask these questions in order.

"Is the STD testing free, sliding scale, or billed to insurance?"
"Which tests are included in that price? Does it cover HIV, syphilis, chlamydia, gonorrhea and hepatitis C?"
"If I have insurance, will anything be billed to me, including by an outside lab?"
"What do I need to bring to qualify for the sliding scale?"
"Do I need an appointment, and what is the next opening?"
"How and when will I get my results?"

If a clinic's page does not list a price, say so on the phone and ask for the number directly. Write it down. A price you were quoted is something you can refer back to.

Step 4: Choose which tests to ask about

Cost is lower when you ask for what fits your situation instead of everything on a menu. A clinician can help you choose. The CDC STI Treatment Guidelines (2021) and the U.S. Preventive Services Task Force describe who is generally advised to be screened and how often, based on factors like age, anatomy, and sexual activity.

Tell the staff about your recent partners and the kinds of sex you have had. That helps them decide which samples to collect. Samples may be urine, a swab or a blood draw, depending on the test.

Step 5: Go to your visit

Arrive a little early, especially at walk-in clinics, where check-in can close before the posted end time.
Bring your notes with the quoted price and the person's name.
Confirm the cost again at check-in before any samples are collected.
Ask how you will receive results and whether the clinic will call, text or use a patient portal.
Ask what happens if a result needs follow-up, including who prescribes treatment and what that visit costs.

Step 6: Plan for results

Timing varies by clinic and test. Fenway's page, for example, lists results in 3 to 5 business days. Other clinics may give different timelines, so ask yours.

Test results are information, not a verdict. A clinician is the right person to explain what a result means for you. Testing at the wrong time after an exposure can also affect how reliable a result is, so ask the clinic about timing. The CDC publishes its own window period guidance on its HIV and STI testing pages.

If a bacterial infection is found, a clinician can prescribe treatment, and these infections are curable. HIV and herpes are not curable but are treatable and manageable. Treatment is decided by the clinician who sees you, not by a website.

What to expect

Most people find that the visit is short and the staff are matter-of-fact. Many clinics see people for routine testing every day.

A test may be able to detect an infection when it is present, though no test is perfect, and results can depend on timing. A negative result may be reassuring for the time of testing. It does not predict future results, so ongoing testing can still make sense if your situation changes.

For a sense of why routine testing matters locally, CDC county data republished by Boston 25 News, for 2021, lists Suffolk County, which contains Boston, at 807.8 chlamydia cases per 100,000 people (6,230 cases) and 298.0 gonorrhea cases per 100,000 (2,298 cases). These are county figures, not city-only numbers. They are a reason to treat testing as an ordinary part of health care, not a reason for alarm.

Privacy and age

Massachusetts law, M.G.L. c. 112, section 12F, lets a minor who reasonably believes they are at risk of exposure through sexual activity consent to care for diagnosis or treatment without a parent's consent. The City of Boston tells people 13 or older that they can get a confidential STI test without parental permission. Under the same law, records are confidential between the minor and the provider, except when the minor's life or limb is seriously endangered.

Under M.G.L. c. 111, section 119, venereal disease reports and records are not public. They can be shared only on a judicial order or with officials whose duties entitle them. Ask any clinic how it handles billing mail and portal access if privacy at home is a concern.

Tips and common mistakes

Assuming "free" covers everything. Ask what is included and whether outside lab charges apply, as with Fenway's Quest billing.
Relying on a single listing. Hours and walk-in rules change. Codman's own pages disagree on hours, so a call settles it.
Mixing up similar addresses. Boston Medical Center's STD clinic and the Boston Public Health Commission's testing listing are both on Albany Street, but they are different providers.
Skipping the cost question because it feels awkward. Clinic staff hear it constantly, and asking is how sliding scales work.
Waiting for a perfect time. If you have symptoms or a concern, say so when you book. Staff can tell you whether a sooner visit makes sense.
Forgetting partners. Ask your clinician about options for partners. Massachusetts law, M.G.L. c. 111, section 121B, directs the Department of Public Health to allow expedited partner therapy, and the CDC lists chlamydia under the current regulation.

Where to turn if you are stuck

The Mayor's Health Line at 617-534-5050 offers free, confidential, multilingual health information and referral, according to the City of Boston. The Boston Public Health Commission's Infectious Disease Bureau can be reached at 617-534-5395. Both can point you toward a testing site that fits your budget.

Cheap STD Testing Near You in Boston: Sliding-Scale Clinics