Most dental schools review applications on a rolling basis. That single fact explains almost everything about the admissions calendar: an application that is complete in June competes for interview slots that an application completed in October may never see. The work that makes an early, complete application possible (the DAT, letters, the personal statement, transcripts) has to happen in the months before the application service even opens.
This guide lays out the full timeline from 18 months before you start dental school to the first day of orientation. Dates and fees come from ADEA's published information for the 2026 to 2027 ADEA AADSAS cycle (the cycle for students starting school in 2027), which is the most recent cycle with published dates as of September 2026. The next cycle usually follows the same pattern, but confirm the new dates on adea.org when they are announced.
Key takeaways
- For the 2026 to 2027 cycle, ADEA AADSAS opened May 12, 2026, accepted the first submissions on June 2, 2026, and closes February 5, 2027.
- Fees are $264 for the first school and $115 for each additional school, plus school supplemental fees. Ten schools costs $1,299 in AADSAS fees alone.
- Schools may not send offers before December 15 under ADEA's current traffic guidelines. Older advice (and some older ADEA pages) still says December 1.
- Processing takes about four to six weeks after ADEA has your application, payment, and every official transcript. Late transcripts are the most common cause of a late application.
- Plan to take the DAT by late spring or early summer of the year you apply, so scores arrive while your application is new.
The 2026 to 2027 AADSAS cycle at a glance
ADEA AADSAS is the centralized application service used by dental schools across the country. You fill out one application, pay per school, and the service verifies your coursework and forwards everything to each program. Here are the published dates and fees for the current cycle.
| Item | 2026 to 2027 cycle | Source |
|---|---|---|
| Fee Assistance Program applications | April 15 to May 15, 2026 | ADEA |
| Application opens | May 12, 2026 | ADEA |
| First day to submit | June 2, 2026 | ADEA |
| Academic update windows | August 13 to September 29, 2026, and December 1, 2026 to February 5, 2027 | ADEA AADSAS instructions |
| Earliest offers of admission | December 15, 2026 | ADEA |
| Application closes | February 5, 2027 | ADEA |
| Final document deadline | February 11, 2027 | ADEA |
| Fee, first school | $264 | ADEA |
| Fee, each additional school | $115 | ADEA |
Two things on this table mislead people. First, the closing date is not your deadline. Each school sets its own deadline, and some are months earlier than February. The University of Iowa, for example, lists a September 30, 2026 deadline for the current cycle, with all materials received and verified by then. Second, "opens" and "first day to submit" are different dates. The weeks between them are for entering coursework and ordering transcripts, and the applicants who use that window well are the ones who submit in the first days of June.
Texas is different. Texas public dental schools admit through TMDSAS, the Texas Medical and Dental Schools Application Service, which has its own application, fees, and calendar. If you are applying in Texas and elsewhere, you will run two applications on two timelines.
What applying actually costs
AADSAS fees scale with your list. ADEA's figures work out like this:
| Schools on your list | AADSAS fees |
|---|---|
| 5 | $724 |
| 10 | $1,299 |
| 15 | $1,874 |
| 20 | $2,449 |
On top of that: most schools charge a supplemental fee (amounts vary by school), the DAT costs $580 under the ADA's 2026 Candidate Guide, and interviews can mean travel if a school interviews in person. ADEA also notes that once you accept an offer, schools typically require a deposit, commonly in the range of $500 to $2,000, usually non-refundable and often credited toward first-year tuition. We break down the full cost of dental school, including those deposits, in what dental school really costs.
If money is tight, look at the ADEA AADSAS Fee Assistance Program early. For the 2026 to 2027 cycle, the application window ran April 15 to May 15, 2026. An approved waiver covered three school applications (a $494 value), eligibility required adjusted gross income at or below 300 percent of the federal poverty guidelines, and applicants had to wait for approval before submitting AADSAS or lose eligibility. Waivers are limited and awarded first come, first served. The DAT has its own partial fee waiver (50 percent of the exam fee) for candidates with severe financial hardship, per the ADA.
The 18-month timeline, month by month
This table assumes you plan to start dental school in the late summer of 2028, which means applying in the 2027 to 2028 cycle. Shift every row by a year if you are aiming for a different start. The cycle-specific dates in the middle column follow the 2026 to 2027 pattern and are estimates until ADEA publishes the new cycle.
| Months before starting | Month (for a fall 2028 start) | What to do |
|---|---|---|
| 18 | February 2027 | Pick a DAT date for late spring. Build a draft school list. Confirm prerequisites you still need. |
| 17 | March 2027 | DAT prep in full swing. Ask letter writers now, while they still have time and before summer. |
| 16 | April 2027 | Apply for the AADSAS Fee Assistance Program if eligible (mid-April window). Write the personal statement first draft. |
| 15 | May 2027 | AADSAS opens (mid-May). Create your account, enter every course, request official transcripts once spring grades post. Take the DAT in May or June. |
| 14 | June 2027 | Submit in the first week or two after the first submission day. Verification starts once transcripts arrive. |
| 13 | July 2027 | Verification (about four to six weeks total). Supplemental applications arrive; return each within about two weeks. DAT scores post three to four weeks after testing. |
| 12 | August 2027 | First academic update window opens mid-August. Early interview invitations. Start interview practice. |
| 11 | September 2027 | Interview season begins at many schools. Some school deadlines fall this month. Add schools only if your list is thin. |
| 10 | October 2027 | Interviews. Keep grades up: schools see fall coursework later in the cycle. |
| 9 | November 2027 | Interviews continue. Send thank-you notes. Follow each school's rules on update letters. |
| 8 | December 2027 | Earliest offers arrive on or after mid-December (December 15 under current guidelines). Second academic update window opens. |
| 7 | January 2028 | Respond to offers within the 30-day window. Submit the FAFSA for your first year of school if you have not already. |
| 6 | February 2028 | AADSAS closes early February. Offers made from February 1 on carry a 15-day minimum response window. |
| 5 | March 2028 | Schools report accepted students to ADEA by March 1, which flags anyone holding multiple seats. Compare financial aid offers. |
| 4 | April 2028 | Decide. After April 15, schools may shorten deadlines for applicants holding more than one seat. |
| 3 | May 2028 | Response protections can lift after May 15. Complete any background check and final transcript requirements. |
| 2 | June 2028 | Finish prerequisites. Line up housing, loans, and health requirements. |
| 1 | July 2028 | Orientation and matriculation at many schools in July or August. |
Why the first five rows matter most
Rows 18 through 14 contain every task that cannot be rushed: a DAT score you are happy with, letters from people who know you, and a personal statement that went through several drafts. Everything after June is mostly responding to what comes back. If you are reading this in the fall and planning to apply next June, you are right on schedule. If you are reading it in May of your application year with no DAT score, consider whether applying later in the cycle or waiting a year produces the stronger application. Our DAT study schedule guide works backward from a test date, and the free ChairsideSource DAT practice tool is useful for timed section drills along the way.
The DAT: when to take it
The DAT drives the timeline more than any other piece. The ADA's 2026 Candidate Guide sets out the constraints:
- Scores are reported to your selected schools within three to four weeks of testing. There is no unofficial score at the test center since the move to the 200 to 600 scale in March 2025.
- You must wait 60 days between attempts, with no more than four attempts in any 12-month period.
- Once the ADA processes your DAT application, you are generally eligible to test within a six-month window.
- Schools receive your full testing history, not just your best score.
Put together: a test in May or early June lets scores arrive in June or July, alongside your verified application. It also leaves room for one retake in late summer if something goes wrong, while the cycle is still young. A test in September is not fatal, but your application sits incomplete at many schools until the scores arrive, and a retake would push you into late fall. For how scores are read once they arrive, see what is a good DAT score, and if your first attempt comes in low, our retake guide helps with the decision.
Letters of evaluation and the personal statement
Letters
AADSAS accepts up to four evaluations: either four individual letters, or one committee letter or packet plus up to three individual letters. Evaluators submit them electronically through the system; you cannot upload them yourself. Individual schools set their own requirements on top of that. Iowa, for example, asks for at least one committee letter or three individual letters, and says letters do not need to come from specific professors. Other schools ask for a letter from a dentist or from science faculty. Check every school on your list.
Two practical points. You must decide whether to waive your right to see each letter, and AADSAS treats that choice as binding. And evaluators now rate you on specific attributes (such as critical thinking, integrity, maturity, and reaction to criticism) in addition to writing, so choose people who have actually watched you work. Ask in the spring, give them a résumé and a short note on what they observed, and tell them requests will come from the AADSAS system.
The personal statement
The AADSAS personal statement is limited to 4,500 characters including spaces, and the prompt asks what motivated you to pursue a career in oral health. Once you submit, you cannot edit it. Draft it in spring, get two or three careful readers, and paste it in only when it is final. Specific experiences (including what you saw while shadowing) carry more weight than general statements about helping people and liking science.
Submission, verification, and supplemental applications
When you click submit, AADSAS does not forward anything to schools until it has three things: your submitted application, your payment, and every official transcript from every college you attended. ADEA says processing usually takes about four to six weeks after all of that is in. Verification (checking your self-entered coursework against transcripts) is one part of that window.
The transcript trap. Many applicants submit on day one and assume they are early. If one transcript (a community college course from high school, a summer class at another university) arrives three weeks late, the application sits unprocessed for those three weeks. Order every transcript the week AADSAS opens, after spring grades are posted, and confirm receipt in the portal.
After schools receive your verified application, most send a supplemental application with its own questions and fee. Treat these as part of the main application: a common guideline is to return each within about two weeks. Schools that review on a rolling basis generally consider an application complete only when the supplemental, its fee, and DAT scores are all in.
Academic updates
If you are still taking courses, AADSAS allows you to update only coursework you listed as in progress or planned, during two windows (August 13 to September 29, 2026 and December 1, 2026 to February 5, 2027 for the current cycle). You need at least one verified program to use them. Strong fall grades can help late in the cycle, so do not coast.
Interview season
Interview invitations can arrive from late summer through winter, and schools that review early often interview early. Formats include one-on-one, panel, group, and multiple mini interviews, and many schools interview virtually. Our dental school interview guide covers the formats and 40 original practice questions. From a calendar standpoint, the key moves are:
- Keep a spreadsheet of every school's status: submitted, verified, supplemental sent, complete, invited, interviewed, decision.
- Respond to invitations quickly. At rolling schools, early interview dates can mean earlier decisions.
- Budget travel if any schools interview on campus, and ask whether a virtual option exists.
- Follow each school's stated policy on update letters or letters of intent. Some welcome them; some ask you not to send anything.
Offers, deposits, and the rules schools follow
ADEA publishes traffic guidelines that set how schools make offers and how long you get to answer. They are guidelines that participating schools agree to follow, and they give applicants real protection.
| Rule (ADEA traffic guidelines) | What it means for you |
|---|---|
| No offers before December 15 (or the prior business day if it falls on a weekend) | Silence before mid-December is normal, not a bad sign |
| At least 30 days to respond to offers made December 15 to January 31 | An offer on December 15 gives you until mid-January |
| At least 15 days to respond to offers made on or after February 1 | Later offers move faster |
| Schools report accepted applicants to ADEA by March 1; ADEA flags multiple acceptances by March 5 | Holding several seats will be noticed |
| Holders of multiple seats get at least 15 days' notice to choose; timelines may shorten after April 15 | Decide by spring, and release seats you will not use |
| Response periods may be lifted after May 15 or two weeks before classes start, whichever is first | Late waitlist offers can require an answer within days |
December 1 or December 15? For years the convention was that offers could go out on December 1, and ADEA's own general timeline page still says offers come "sometime after December 1." The current ADEA traffic guidelines and the 2026 to 2027 cycle information both give December 15. Use December 15 for planning, and read each school's letter carefully for its own deadlines.
Deposits come with acceptance. Paying a deposit to hold a seat at one school while you wait on another is common, and the guidelines allow it within the response windows, but deposits are usually non-refundable. Scholarship offers are supposed to follow the same response periods, so ask schools about aid before your deadline rather than after.
Before you submit AADSAS
- DAT taken, or scheduled early enough that scores arrive by midsummer.
- Every college transcript ordered, including dual-enrollment and summer courses.
- All coursework entered exactly as it appears on transcripts.
- Evaluators confirmed, told to expect the AADSAS request, and given your résumé.
- Personal statement final and proofread (it cannot be edited after submission).
- Experiences entered with accurate dates and average weekly hours, and supervisor contacts current.
- School list checked for each school's deadline, supplemental fee, and letter requirements.
- Budget set for fees, supplementals, interviews, and a possible deposit.
Common timeline mistakes
- Treating the February close as the deadline. Some schools close in the fall. Check each one.
- Submitting on day one with a missing transcript. Processing waits for the last document.
- Taking the DAT in late summer "to have more time." The extra weeks of study rarely offset a later, incomplete application.
- Asking for letters in August. Professors are away or busy, and a rushed letter reads like one.
- Sitting on supplementals. A two-week delay on each one adds up across ten schools.
- Applying to too few schools, or only to reach schools. In-state public schools often weigh residency heavily, so build your list around them.
Putting the calendar to work
Count back from the fall you want to start. Eighteen months out, pick the DAT date and the school list. Twelve to fifteen months out, have everything submitted and verified. The rest of the cycle is interviews and decisions, governed by rules that give you at least two weeks to answer every offer. If you get the front half right, the back half mostly takes care of itself.
Next steps: set your target score using what is a good DAT score, build your study calendar with the DAT study schedule, and read what schools look for beyond your DAT score before you write your personal statement.
ChairsideSource is not affiliated with ADEA, the ADA, or any dental school. Cycle dates, fees, and policies change every year. Confirm current details at adea.org and on each school's admissions page before you rely on them.
Educational content only. It is not legal, financial, tax, or clinical advice. Prices and ranges are approximate and vary by region, condition, and year. Verify current rules with your state dental board and qualified professionals. ChairsideSource is not affiliated with any manufacturer, the ADA, or the DAT.