Life happens — you get sick, two exams collide in the same slot, an emergency hits — and missing an AP exam feels like a disaster. It usually isn’t. The College Board runs an official late-testing window the week after the main exams, using alternate versions of each test, for students with a genuine reason they couldn’t test on the regular date. This guide covers exactly when late testing happens, who qualifies (and who doesn’t), how to request it, whether the exams are harder, any fees, and the key reassurance: testing late leaves no mark on your score report.
Here’s the essential picture: AP late testing runs during the third week of May — the week right after the two-week main window — using alternate exam forms for security. It’s not a redo for feeling unprepared; it’s for students with an approved reason (illness, emergency, a same-slot exam conflict, religious holiday, school event, accommodations issue). You can’t request it yourself — your AP coordinator decides and submits it. The alternate exams are equivalent in difficulty, scored the same 1–5, released the same July date, and — crucially — testing late never shows on your score report or to colleges. Here’s everything in detail.
Late testing sits right after the regular exams. See the full AP exam schedule for the main dates and how long AP exams are to plan your day. To target a score, estimate with the AP score calculator.
What this guide covers
When AP late testing happens
The timing is consistent year to year, which makes it easy to anchor even before exact dates are published. Late testing is the week after the main window.
AP late testing is administered during the third week of May — the week immediately following the two-week regular exam window. Across that week, exams run over about five days, with morning sessions beginning between 8 and 9 a.m. local time and afternoon sessions between 12 and 1 p.m. local time. All students testing late at a given school must take their exams on these fixed dates and times — there’s no flexibility to pick your own slot, and no early testing is ever allowed. The specific calendar dates shift slightly each year, so the current year’s exact late-testing days should be confirmed on the College Board’s official calendar, but the dependable pattern is simply “the week after the regular exams.” For a sense of scale: if the main window runs the first two full weeks of May, late testing occupies the third. This predictability helps if you can already foresee a conflict — you know roughly when the makeup week will fall. For the main-window dates this follows, see our AP exam schedule guide.
The reliable pattern: late testing is always the week after the two-week main window — the third week of May — with mornings starting 8–9 a.m. and afternoons 12–1 p.m. local time, on fixed dates. Confirm the exact current-year days on the College Board’s calendar, but the timing is predictable.
What AP late testing actually is
Late testing is often misunderstood as a casual second chance, so it’s worth being precise about what it is and why it exists. It’s a secure, separate administration.
Late testing is an official, separate AP exam administration held after the regular dates, using alternate versions of each exam — different questions from the regular test. The reason for the different forms is security: because students who took the exam on the regular date could otherwise share questions, the alternate forms ensure that late testers face fresh material, keeping every score based on a secure, uncompromised exam. Critically, late testing is not a “redo” for students who feel unready — it’s reserved for those with a documented reason they couldn’t test in the main window. Schools administering late testing must follow the College Board’s procedures exactly, testing only on the specified dates and times. So the accurate mental model is: same course, same standards, same scoring — just a secure alternate version given on a fixed later date to students who genuinely couldn’t make the original. It’s a fairness mechanism, not a loophole, which is why access to it is controlled through your coordinator and limited to approved reasons.
Who qualifies for late testing (and who doesn’t)
This is the heart of the topic, because the line between qualifying and non-qualifying reasons is exactly what trips students up. The distinction is “couldn’t test” versus “didn’t want to.”
Late testing is for students who, through no reasonable fault of their own, cannot test on the regular date. Your AP coordinator decides whether your reason qualifies — and their judgment is decisive, so a genuine, well-documented reason communicated early is what matters. Qualifying reasons typically include illness or injury, a family emergency or tragedy, a natural disaster, a religious holiday, an official school event (such as a sanctioned athletic competition or academic event), an issue with disability accommodations, or a genuine exam conflict where two AP exams are scheduled in the same time slot. What does not qualify are reasons within your control or convenience: feeling unprepared, oversleeping or missing your alarm, a non-emergency family commitment, or a preplanned non-national holiday. For those, the College Board expects you to test on the regular date (or, for a class-test clash, reschedule the class test instead). The contrast below makes the line clear.
Typically qualifies
- Illness or injury on exam day
- Family emergency or tragedy
- Natural disaster
- Religious holiday
- Official school event (sanctioned sport, academic event)
- Disability accommodations issue
- A genuine same-slot conflict between two AP exams
Typically does NOT qualify
- Feeling unprepared or wanting more study time
- Oversleeping or missing your alarm
- A non-emergency family commitment or trip
- A preplanned, non-national holiday
- A routine class test clash (reschedule the class test instead)
- Simple preference for a different date
Your coordinator is the gatekeeper: you can’t self-approve late testing. Your AP coordinator judges whether your reason qualifies and files the request, so present a genuine, documented reason as early as possible. “I wasn’t ready” is not a qualifying reason; a documented illness or a true same-slot conflict is.
How to request AP late testing
Because you can’t initiate late testing yourself, knowing the exact process — and acting fast — is what secures it. It all routes through your coordinator.
As soon as you know you might miss a regular exam date — ideally the moment you can foresee it — reach out to your school’s AP coordinator. Speed matters: the earlier you flag it, the more options they have.
Tell the coordinator specifically why you can’t test on the regular date. They’ll assess whether it’s a qualifying reason, so be honest and precise rather than vague about the circumstances.
For reasons like illness, the coordinator may ask for proof such as a doctor’s note; for an athletic event, a note from a coach. Supply whatever they request promptly to support the request.
If your reason qualifies, the coordinator submits the late-testing request to the College Board and orders the alternate exam. They’ll tell you the exact date, time, and location to report — often via an e-ticket.
The single most important behavior here is speed: whether it’s a conflict you can see coming months ahead or a sudden illness, notifying your coordinator as early as possible gives them the room to arrange everything within the required deadlines. For a foreseeable same-slot conflict especially, flag it in advance rather than waiting for exam week — coordinators order materials and file requests on their own timeline, and an early heads-up keeps you off the last-minute scramble. If you’re homeschooled or your school doesn’t offer a needed exam, you’ll work with the coordinator at the school where you’re registered to test.
Are late-testing exams harder?
This is the worry most late testers carry into the alternate exam, so it deserves a direct answer. The forms differ; the difficulty doesn’t.
Late-testing exams are not designed to be harder (or easier). They’re alternate versions with different questions, used purely to protect security so regular-date testers can’t pass questions to late testers — but they cover the same curriculum and are built to be equivalent in difficulty and format to the regular exam. They’re scored on the same 1–5 scale using the same standards, and — importantly — late-testing scores are released at the same time in July as regular scores, not later for the student. So the only real difference you’ll experience is that the specific questions aren’t the ones the regular-date group saw. Your preparation is identical, the standard you’re held to is identical, and the score you earn means exactly the same thing. The alternate form is a security measure, not a difficulty adjustment — there’s no hidden penalty baked into taking the late version. To understand how the 1–5 scoring works the same way regardless of form, see how AP exams are scored.
Does late testing show on your record?
If any single fact turns late-testing anxiety into relief, it’s this one — so it deserves emphasis. Testing late is invisible on your results.
Whether you tested on the regular date or during the late window is not indicated on your AP score report, and colleges only see your final 1–5 scores — never when or how you took the exam. There is no marker, footnote, or penalty for having tested late. Your score is reported identically regardless of administration, so a score earned in late testing is indistinguishable from one earned on the regular date. This is genuinely reassuring: qualifying for late testing when you truly need it carries zero downside for your transcript, score report, or college applications. There’s no reason to force yourself to test while seriously ill or to skip a legitimate emergency out of fear it will “look bad” — it won’t appear at all. The late-testing system exists precisely so that a valid, unavoidable conflict never costs you academically. For what your score report does and doesn’t show in general, see AP exam results.
The key reassurance: testing late leaves no trace — your score report shows only your 1–5, identical to a regular-date score, and colleges never see when you tested. There’s no penalty and no marker, so using late testing for a genuine reason costs you nothing.
Fees and which exams are offered
Two practical details round out the picture: whether it costs extra, and whether every subject is even available late. Both depend on specifics worth knowing.
On fees: it depends on the reason. For many qualifying situations — such as illness or a genuine exam conflict — there’s typically no additional late-testing fee. But for some circumstances, particularly when a student misses the regular exam for a reason more within their control, the College Board may charge an additional per-exam late fee. Because the exact fee and which circumstances trigger it are set by the College Board and can change, confirm current fee rules with your coordinator or the College Board — but genuine emergencies are generally handled without a penalty fee. On which exams are offered: not every subject is available in late testing. Courses assessed mainly through portfolios or performance tasks rather than a single standard exam — typically AP Art and Design (portfolio-based) and the AP Capstone courses (Seminar and Research) along with AP Computer Science Principles (performance-task based) — generally aren’t part of the late-testing window, since they’re governed by their own task and portfolio deadlines instead. For those, the relevant deadlines are for submitting the tasks or portfolio, not a late-testing sitting. Because offerings can change, confirm which specific exams are available for late testing with your coordinator or the College Board.
| Aspect | How it works |
|---|---|
| When | Third week of May, the week after the main window (fixed dates/times) |
| Who approves | Your AP coordinator (you can’t self-request) |
| Exam form | Alternate version, equivalent difficulty, same 1–5 scoring |
| Scores released | Same July date as regular scores |
| Shows on report/to colleges | No — no marker or penalty |
| Fee | Often none for genuine reasons; possible per-exam fee otherwise |
| Not offered late | Portfolio/performance-task courses (Art & Design, Seminar, Research, CSP) |
The alternate form is scored identically, so prep the same way. Estimate your result with the AP score calculator and its subject tools for Biology, Chemistry, English Language, and World History.
AP late testing: frequently asked questions
When is AP late testing?
AP late testing is held during the third week of May, the week immediately after the main two-week exam window. Exams run over about five days, with morning sessions beginning between 8 and 9 a.m. local time and afternoon sessions between 12 and 1 p.m. local time, on fixed dates. Because the exact dates shift slightly each year, confirm the current year’s late-testing schedule on the College Board’s official calendar — but the reliable pattern is the week after the regular window.
Who qualifies for AP late testing?
Late testing is for students with a valid, approved reason they couldn’t test on the regular date, not for those who feel unprepared. Qualifying reasons typically include illness or injury, a family emergency, a natural disaster, a religious holiday, an official school event like a sanctioned athletic competition, a disability accommodations issue, or a genuine conflict where two AP exams fall in the same slot. Your AP coordinator decides whether your reason qualifies and requests it for you, since students can’t request it themselves. Feeling unready, oversleeping, or a non-emergency commitment don’t qualify.
How do I request AP late testing?
You can’t request it yourself; it goes through your school’s AP coordinator. As soon as you know you may miss a regular date, contact your coordinator, explain your reason, and provide any documentation they request, like a doctor’s note for illness. The coordinator decides whether your reason qualifies and, if so, submits the request and orders the alternate exam. The earlier you flag the issue, the more options your coordinator has, so notify them immediately, especially for a known conflict you can see coming.
Are AP late testing exams harder?
No. Late-testing exams are alternate versions with different questions, used to protect security so regular-date testers can’t share questions, but they cover the same curriculum and are designed to be equivalent in difficulty and format. They’re scored on the same 1 to 5 scale using the same standards, and late-testing scores are released at the same time in July as regular scores. So while the specific questions differ, the exam isn’t meant to be harder or easier, and your score means exactly the same thing.
Does late testing show up on my AP score report or to colleges?
No. Whether you tested on the regular date or during late testing isn’t indicated on your AP score report, and colleges only see your final 1 to 5 scores, not when or how you took the exam. There’s no marker or penalty for testing late. Your score is reported identically regardless of administration, so testing late has no effect on how your result appears to colleges. Qualifying for late testing when you genuinely need it carries no downside for your record or applications.
Is there a fee for AP late testing?
It depends on the reason. For many qualifying reasons, such as illness or a genuine exam conflict, there’s typically no additional late-testing fee. However, for some situations, particularly when a student misses the regular exam for a reason within their control, the College Board may charge an additional per-exam late fee. Because fees and the circumstances that trigger them are set by the College Board and can change, confirm current fee rules with your AP coordinator or the College Board. In general, genuine emergencies are handled without a penalty fee.
Which AP exams are not offered during late testing?
Courses assessed primarily through portfolios or performance tasks rather than a single standard exam are generally not offered in late testing. This typically includes AP Art and Design (portfolio-based) and the AP Capstone courses AP Seminar and AP Research, along with AP Computer Science Principles, which rely on performance tasks submitted by their own deadlines. For these, the relevant deadlines are for their tasks or portfolios, not the late-testing dates. Because offerings can change, confirm which exams are available for late testing with your coordinator or the College Board.
The quick version
AP late testing runs the third week of May — the week after the two-week main window — using alternate exam forms for security, with mornings starting 8–9 a.m. and afternoons 12–1 p.m. local time on fixed dates. It’s for students with an approved reason they couldn’t test on the regular date (illness, emergency, same-slot conflict, religious holiday, school event, accommodations issue), not for feeling unprepared. You can’t request it yourself — your AP coordinator decides and files it, so contact them immediately and provide documentation. The alternate exams are equivalent in difficulty, scored the same 1–5, released the same July date, and testing late never appears on your score report or to colleges. Fees are often waived for genuine reasons; portfolio and performance-task courses aren’t offered late.
Prep the same way regardless of date — estimate your result with the free AP score calculator or the subject tools for Biology, Chemistry, English Language, and World History. Browse the full education calculators or start at the Waldev homepage. See also the AP exam schedule, how long AP exams are, and when scores come out.
Accuracy note: AP late-testing dates, times, eligible reasons, fees, and the list of exams offered are set by the College Board and can change year to year; the specific dates shift and are confirmed officially each year. This guide describes the general, reliable structure for planning and is for informational purposes only. Always confirm the current late-testing schedule, eligibility, and fees with your AP coordinator and on the College Board’s official pages, and remember that only your AP coordinator can request late testing on your behalf.
The College Board’s AP Central lists the official late-testing dates and administration rules. AP late-testing dates →
The AP Students exam calendar shows the main and late-testing windows together. AP exam calendar →
