Padel Serve Rules, Faults and Lets Explained (UK)

Padel serve rules explained: the legal underarm serve, what counts as a fault, lets and net cords, second serves, and the 2026 FIP rule change.

Player preparing to serve - padel serve rules, faults and lets
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By Rob Griffiths2 July 2026 · 6 min read

The serve is the one shot in padel with the most rules around it - and the one beginners most often get wrong. This guide breaks down exactly what makes a serve legal, what counts as a fault, how lets work, and the 2026 rule change every UK player should know. For the technique itself, see our how to serve guide; this is the rules.

A valid padel serve has to meet all of these:

  • Underarm contact at or below the waist. Under FIP rules the strike must be at or below 1.06m - roughly waist height. No overhead or above-waist serves.
  • Bounce first. You must drop the ball and let it bounce once on the floor on your side before striking it. You can't hit it out of the air.
  • Behind the service line. You stand behind the service line, between it and the back glass, and serve from the correct side.
  • Diagonal into the service box. The serve must travel diagonally over the net and land in the receiver's service box (and may then bounce up onto the side wall - that's still in).
  • At least one foot down. One foot must stay in contact with the ground at the moment of contact.

What counts as a serve fault?

Any of these is a fault:

  • Hitting above the waist (above 1.06m) or overhead.
  • Foot fault - stepping on or over the service line or centre line before contact, or jumping (no foot on the ground at contact). Jump serves are not allowed.
  • Missing the box - the serve lands outside the correct diagonal service box, or hits the wire fence/back wall before bouncing in.
  • No bounce or double bounce - failing to bounce the ball first, or letting it bounce twice.
  • Whiffing it - swinging and missing the ball entirely.

One fault gives you a second serve. Two faults in a row is a double fault and you lose the point.

What is a let on the serve?

A let is a replayed serve. If your serve clips the top of the net (a net cord) but still lands correctly in the diagonal service box, it's a let and you take that serve again with no penalty. This applies to both your first and second serve - a let on a second serve doesn't cost you the point, you simply replay it. A ball that hits the net and lands outside the box, however, is a normal fault, not a let.

How do second serves and sides work?

Like tennis, you get two serve attempts per point, and the same player serves the whole game. The serving side starts from the right-hand side of the court, serving diagonally; after each point, the server switches to the other side and serves to the other box, alternating throughout the game. Whichever player is serving keeps serving until the game ends, then service passes to an opponent. For how the points themselves are counted, see our scoring guide and the golden point rules.

The 2026 FIP rule change

One change is worth flagging: from January 2026, the FIP ruled that on the serve, the ball must not cross any court line in the air before the moment of contact. In practice that means you can't position and strike the ball so that it has already travelled beyond the service line or centre line before you hit it - the contact has to happen before the ball crosses those lines. It's a technical tweak most recreational players won't notice, but it's the current rule, so it's worth knowing if you play sanctioned competition.

Frequently asked questions

Q01Can you serve overarm in padel?
No. The padel serve must be underarm, with contact at or below waist height (1.06m under FIP rules). Overhead or above-waist serves are a fault. You must also let the ball bounce once on the floor on your side before striking it - you can't hit it out of the air like a tennis serve.
Q02What happens if you fault your serve in padel?
One fault gives you a second serve, exactly like tennis. If you fault again on the second serve, that's a double fault and you lose the point. Faults include hitting above the waist, a foot fault, missing the diagonal service box, failing to bounce the ball first, or swinging and missing.
Q03Is a serve that hits the net a let in padel?
Only if it still lands in the correct service box. A serve that clips the net (a net cord) but lands in the right diagonal box is a let and is replayed with no penalty, on both first and second serves. If the ball hits the net and lands outside the box, it's a normal fault, not a let.
Q04Where do you stand to serve in padel?
Behind the service line, between it and the back glass, on the correct side for the point. You serve from the right-hand side first, diagonally into the receiver's box, then alternate sides after each point. At least one foot must stay on the ground at contact, and you must not step on or over the line before you strike the ball.
Q05What changed about the padel serve in 2026?
From January 2026, the FIP ruled that the ball must not cross any court line in the air before the moment of contact on the serve - meaning you can't strike it after it has already travelled beyond the service or centre line. It's a technical change aimed at competition play that most recreational players won't notice, but it is the current official rule.