Plus-ones are where wedding etiquette meets wedding maths. Every additional name on the list is another meal, another seat, another bottle's worth of wine, and — on a venue with a per-head cost — another real number. That makes plus-ones a budget question as much as a social one, and couples are entirely within their rights to be selective.
Here's how to be selective without causing offence.
Who gets a plus-one by default
Three categories of guest traditionally receive a plus-one without needing to ask:
- Married couples and couples in established long-term relationships, whether you've met the partner or not.
- Engaged couples, regardless of how recent the engagement is.
- Wedding party members — bridesmaids, groomsmen, and ushers — whose own partners deserve to share the day with them.
Who you can reasonably not offer one to
For everyone else, a plus-one is a kindness, not an obligation. Couples are entirely within their rights to not extend plus-ones to:
- Single friends where the plus-one would be a stranger to everyone else in the room.
- Colleagues or distant family members.
- Friends in very new relationships (under six months, roughly) — this is a gentle convention, not a rule.
How to phrase the invitation
Clarity beats cleverness. An invitation addressed to "Sarah" alone signals no plus-one; one addressed to "Sarah and Guest" or "Sarah and partner" signals one is offered.
If you want to be specific — for example, including a long-term partner by name — address the invitation to both: "Sarah and James." That makes it unambiguous and avoids Sarah wondering whether she's allowed to bring James or not.
On digital invitations and RSVP forms, let each guest add a named partner rather than a nameless +1. On most wedding websites you can set this per-guest — some are invited solo, some with a plus-one slot that requires a name.
When a guest asks for a plus-one you weren't offering
It happens. A friend who's just started seeing someone asks if they can bring their new partner. A cousin emails to check if her flatmate can come.
You have three options: say yes (if there's capacity and you don't mind setting a precedent); say no, kindly and specifically; or offer an alternative ("we've had to keep the numbers tight, but we'd love to see you two at the evening reception").
Saying no is fine. A short, honest reply works best: "So lovely you want to bring Alex, but we've had to keep the ceremony and dinner to a very tight number. Hope you understand — we can't wait to have you there." Don't over-apologise or invent logistical excuses. A calm, brief "no" causes less friction than a padded, awkward one.
When plans change between invite and day
If a guest was invited with their partner and the relationship ends before the wedding, they're usually welcome to bring someone else instead — but they should ask rather than assume. The opposite also happens: a guest invited solo may now be in a serious relationship and hopes to bring them.
In both cases, the move is the same: a short, private message to the couple a few weeks before the wedding, asking rather than informing. "We've broken up — would you mind if I brought a friend instead?" is much easier to answer than a mystery guest appearing at the table plan.
Getting plus-one names for place cards
Two weeks before the wedding, chase the names of every plus-one you don't already have. Your caterer doesn't care about names, but your calligrapher, your stationer, and your seating chart do.
The easiest way is to build it into the RSVP form from the start: if a guest has a plus-one slot, they have to name them to submit. That removes a whole category of last-minute chasing entirely.
The underlying principle
A plus-one is a gift, not a right. Couples extend them based on relationships, budget, and venue capacity — and guests accept what's offered with grace. Get both halves right and the plus-one question never causes any real tension. Get either wrong and it's the awkwardness people remember.