On this page
  1. Aggregate and away goals answer different questions
  2. Worked example: 2–2 on aggregate, different away-goals totals
  3. What extra time and penalties change
  4. Was the away-goals rule abolished everywhere?
  5. A quick check before deciding who qualifies
  6. Frequently asked questions
  7. Keep the result and the rules together
  8. Sources

Aggregate score is the total number of goals each team scores across two legs. Away goals were a separate tiebreaker: under UEFA's former rule, the team with more goals away from home advanced only when the aggregate scores were level. Away goals did not replace the aggregate calculation. [1]

UEFA abolished that knockout tiebreaker in its club competitions from the qualifying rounds of 2021/22. For a two-leg Champions League tie under the 2026/27 regulations, a level aggregate instead leads to extra time and, if needed, a penalty shoot-out. Other competitions can use different procedures, so check the competition, round and season before deciding who goes through. [2][3]

Aggregate and away goals answer different questions

MeasureWhat you countWhat it tells you
Aggregate scoreEach team's goals across both legsWho has scored more overall
Away-goals totalGoals each team scored in the away legWho would win a level tie if the applicable rules use away goals
Second-leg scoreGoals in that match aloneWho won that match, not necessarily the whole tie

A “leg” is one match in a two-match tie. Keep the team names fixed when adding the scores: the home side changes between matches, so adding the first number on each scoreboard can produce the wrong answer.

For example, if Team A wins 3–0 at home and loses 1–0 away, A has three goals and Team B has one. A wins 3–1 on aggregate even though B won the second leg. Winning one match each does not make the tie level. The number of goals, rather than the number of wins, is the comparison. UEFA's 2026/27 Champions League Article 20.03 uses the greater aggregate to determine qualification. [4]

Worked example: 2–2 on aggregate, different away-goals totals

These teams and scores are fictional. Both leg scores below are at the end of normal time, before any extra time.

MatchScore, with the home team firstTeam A goalsTeam B goals
First leg at ATeam A 2–1 Team B21
Second leg at BTeam B 1–0 Team A01
AggregateTeam A 2–2 Team B2 + 0 = 21 + 1 = 2

Now count the away goals separately. A scored zero away, in the second leg. B scored one away, in the first leg.

  • Under UEFA's former away-goals tiebreaker, B would qualify: the aggregate is level and B leads 1–0 on away goals. [1]
  • Under Champions League 2026/27 Article 21.01, neither side has qualified yet. This level two-leg tie goes to extra time. B's away goal does not break the tie. [3]
First leg · at AA 2–1 B
Second leg · at BB 1–0 A
Aggregate: A 2–2 BA: 2 + 0 · B: 1 + 1
Former UEFA ruleB qualifiesAway goals: A 0, B 1
Champions League 2026/27Extra timeAway goals do not decide this tie
Same fictional scores, different tiebreaking rules. The aggregate stays 2–2 in both comparisons. [1][3]

Did away goals count double?

“Count double” was a familiar shorthand, but it is misleading if you use it to change the score. The old tiebreaker compared away goals after the aggregate was tied; it did not turn every away goal into two goals in the aggregate total. [1]

In our example, the aggregate is 2–2, not 2–3. Keep two separate calculations: total goals first, then away goals only if the applicable rule requires that second comparison.

What extra time and penalties change

For the Champions League's 2026/27 two-leg procedure, extra time consists of two 15-minute periods at the end of the second leg. The team scoring more in extra time advances; equal scoring during extra time leads to penalties. [3]

Starting from the fictional 2–2 aggregate above:

Extra-time goals, A–BAggregate after extra time, A–BNext outcome
1–03–2A qualifies
0–12–3B qualifies
1–13–3Penalty shoot-out
0–02–2Penalty shoot-out

The 1–1 row is the useful test: an away goal in extra time does not give A priority under this rule. Both teams added one goal, so they remain level.

A shoot-out is separate from those goal totals. IFAB Law 10 places it after the match has ended. If the tie finishes 3–3 on aggregate and A wins the shoot-out 5–4, report those as two separate results, not an 8–7 aggregate. [5]

Was the away-goals rule abolished everywhere?

No. UEFA's June 2021 decision applied to UEFA club competitions, including men's, women's and youth competitions. It was not a worldwide instruction that every organiser had to use the same knockout rules. [2]

The distinction also matters within UEFA: removing away goals does not always mean adding extra time. Under the 2026/27 Youth League regulations, a level aggregate in the first three rounds of the domestic champions path goes directly to a penalty shoot-out, without extra time. [6]

IFAB Law 10 lists away goals, extra time and penalties as permitted ways for competition rules to decide a drawn match or home-and-away tie. That general permission does not tell you which procedure your competition has adopted. [5]

Read the relevant season's competition regulations, not just a headline saying that away goals have gone. This article's Champions League example uses the 2026/27 edition, with an enforcement date of 29 July 2026. It does not apply that edition to other competitions or earlier matches. [3][4]

A quick check before deciding who qualifies

  1. Identify the competition, season and round. A final or a specially arranged tie may not have two legs. Champions League Article 20, for example, excludes the final from its normal two-leg format and allows UEFA to specify a one-leg tie when circumstances require it. [4]
  2. Write down each team's goals in each leg, keeping the names in the same order.
  3. Add each team's goals. If the totals differ, identify the aggregate leader.
  4. If level, apply that competition's tiebreaker. Do not assume away goals or extra time.
  5. Keep any shoot-out score separate from the aggregate.

This calculation answers a sporting question: who qualifies from the tie? It does not, on its own, answer how a prediction-market contract resolves. If you are reading a market, check its exact outcome wording, result source and treatment of extra time or penalties. Do not infer those terms from the second-leg score or from this explainer.

Frequently asked questions

How do you calculate aggregate score in football?

Add each team's goals from the first and second legs. If A wins 2–1 at home and loses 1–0 away, A has 2 + 0 = 2 and B has 1 + 1 = 2. The aggregate is 2–2.

Can a team lose the second leg and still qualify?

Yes. If A wins the first leg 3–0 and loses the second 1–0, A still leads 3–1 overall. The second-leg winner and the aggregate winner are different in that example.

Are away goals used in the Champions League in 2026/27?

Not as the tiebreaker for a level two-leg knockout tie. Article 21.01 uses extra time, followed by penalties if the teams remain level. [3]

Do penalties get added to the aggregate score?

Shoot-out penalties do not. Keep the shoot-out result separate because it takes place after the match. A penalty scored during normal play or extra time is different: it is a goal in the match. [5]

Does every level aggregate go to extra time?

No. The competition rules decide. The 2026/27 Youth League's first three domestic-champions-path rounds go straight to penalties when the two-leg aggregate is level. [6]

Keep the result and the rules together

Start with the combined score, then apply the right tiebreaker. Away goals, extra time and a shoot-out are not interchangeable labels for the same calculation.

For the separate question of how an event result becomes a market outcome, read prediction-market resolution rules. Or browse the article guides for more explanations.

Sources

  1. UEFA: away-goals rule explained. Historical explanation of the former tiebreaker.
  2. UEFA: abolition announcement, 24 June 2021. Change effective from the qualifying phases of 2021/22.
  3. Champions League 2026/27 regulations, Article 21. Extra time and shoot-outs; enforcement date 29 July 2026.
  4. Champions League 2026/27 regulations, Article 20. Two-leg format, exceptions and aggregate result; enforcement date 29 July 2026.
  5. IFAB Law 10: determining the outcome of a match. Permitted tiebreaking procedures and separate shoot-out.
  6. Youth League 2026/27 regulations, Article 21. Competition-specific no-extra-time example; enforcement date 29 July 2026.

Rules checked: 23 October 2026. Fictional scorelines illustrate the calculations, not actual fixtures or available markets.