How the ATPL exam rules actually work
How the ATPL exam rules actually work
When the 18-month window really starts
The clock does not start when you enrol with your ATO, and not when you finish the course. FCL.025(b)(2) says you must pass all papers “within a period of 18 months counted from the end of the calendar month when the applicant first attempted an examination”. Two details matter. First, the trigger is your first attempt at any paper, pass or fail. Second, the counting starts from the END of that calendar month, which quietly gifts you the rest of the month.
Worked example: your first exam is on 12 March 2026. The count starts from 31 March 2026, so the window closes on 30 September 2027. A student who assumes “18 months from exam day” would plan for 12 September 2027 and give away more than two weeks of margin. The planner above always computes the end-of-month version for you.
One more date to respect before you ever sit: under FCL.025(a) you take the exams on the recommendation of your ATO once your training is at standard, and that recommendation is valid for 12 months. Miss it and the ATO must reassess whether you need further training first.
Six sittings, four attempts per subject
At ATPL, CPL and IR level, FCL.025(b)(3) gives you two separate budgets. You may attempt each individual paper at most four times. And you may spread the whole set over at most six sittings. Both budgets run inside the same 18-month window, and whichever you exhaust first is the one that ends the run.
What exactly counts as one sitting is administered by your competent authority: typically one scheduled examination period counts as one sitting, and in several countries an unexcused no-show still burns it. The strategy consequence is the same everywhere: do not design a plan that needs all six sittings for first passes. Every fail must be resat in a later sitting, so a plan with no spare sittings has no room for a single bad day. Three to four sittings for first passes, keeping the rest in reserve, is the common pattern.
The load per sitting is your choice: the regulation does not limit how many papers you take in one sitting. Common ATO practice is roughly three to six papers per sitting; the planner flags very heavy sittings as guidance, not as a rule.
What a fourth fail or a blown window actually costs
The consequence in FCL.025(b)(3) is brutal and worth reading twice: if you fail one paper four times, or run out of sittings, or run out of window, you “shall retake the complete set of theoretical knowledge examination papers”. Not the failed paper. All of them, including the twelve you already passed, after further training at your ATO.
This is why the planner treats a subject on its third fail as a red alert. With three fails on one paper and twelve passes in the bag, the rational move is usually to slow down, retrain that one subject properly, and protect the final attempt, because that single paper is now carrying your entire theory credit.
The same total loss applies to the window: a pass achieved after the 18 months have run out does not count toward the set. If your last papers are scheduled in the final month of your window, one postponed exam session is enough to take the whole set down. Leave calendar margin at the end, not just sitting margin.
After the last pass: how long your theory credit lives
Passing the set starts a second clock, set out in FCL.025(c). For the issue of a CPL or an instrument rating, the completed theory is accepted for 36 months, counted from the day you complete the full set. Finish your exams and then take three years off, and the credit is gone.
For the ATPL itself the rule is different and more generous: the ATPL theory credit remains valid for 7 years from the last validity date of an IR entered in your licence (for helicopter pilots, of the type rating). In practice: get your CPL and IR inside the 36 months, keep the IR alive, and the ATPL theory quietly stays usable for many years of line flying until you are ready for the licence itself. Let the IR lapse for long enough and the 7-year count runs from that last validity date. This planner tracks the examination phase; treat the 36-month and 7-year rules as content to plan your training path around, and confirm your personal dates with your authority.
Three ways students lose the set
Three ways students lose the set
Scenario 1: the resit that would not fit
A student plans all 13 papers across six sittings, two or three papers each, using every sitting for first passes. In sitting five she fails Meteorology. The resit needs a seventh sitting that does not exist: under FCL.025(b)(3) the complete set is gone, despite 12 passes. The same plan compressed into four sittings would have left two sittings of resit margin. The planner shows this the moment you assign papers to a sixth sitting while anything is unpassed.
Scenario 2: the window that started earlier than remembered
A student sits his first two papers on 28 January 2026, then pauses for a season job and restarts in 2027. He remembers “about 18 months” and books his final sitting for August 2027. The window actually closed on 31 July 2027 (end of January 2026 plus 18 months). Every paper in that August sitting is outside the window and the set is lost. Enter your real first-attempt month in the planner and the deadline stops being a memory exercise.
Scenario 3: three fails on the last paper
Twelve papers passed, but Air Law has been failed three times, with four months of window left. The fourth attempt is final: a fail means retaking all 13 papers under a fresh window after retraining. The right play is usually maximum preparation for that single paper rather than rushing it into the next available session. The planner marks the subject as a critical warning at this point so the stakes are explicit.
The rules, cited
The rules, cited
Everything this planner enforces comes from point FCL.025 of Annex I (Part-FCL) to Regulation (EU) No 1178/2011, as amended (the sitting and attempt limits in their current form were shaped by Regulation (EU) 2019/1747). The key passages:
- FCL.025(b)(1): a pass requires "at least 75 % of the marks allocated to that paper", with no penalty marking.
- FCL.025(b)(2): all papers must be passed "within a period of 18 months counted from the end of the calendar month when the applicant first attempted an examination".
- FCL.025(b)(3): an applicant who "has failed to pass one of the theoretical knowledge examination papers within four attempts, or has failed to pass all papers within either six sittings or within the period mentioned in point (b)(2)" shall "retake the complete set of theoretical knowledge examination papers".
- FCL.025(c): completed theory is accepted for CPL and IR issue for 36 months from the day the full set is completed; ATPL theory credit remains valid for 7 years from the last validity date of an IR entered in the licence.
Read the current consolidated text in the EASA Easy Access Rules for Aircrew or on EUR-Lex (Regulation (EU) No 1178/2011). UK CAA candidates: the UK applies similar but separately regulated limits post-Brexit, so verify with the CAA directly.