The upfront conversation about money is the only real solution. Everything else, the separate tabs, the one-splurge agreement, the polite excuses at the restaurant door, works better when the conversation has already happened. Skip it and you're improvising around a tension that will keep returning.

Have the Conversation Before You Book

This is the one that people avoid because it feels awkward, and the avoidance makes it worse. Before you book flights or a hotel, say what you're working with. Not a number necessarily, but a shape: roughly what you're comfortable spending per day, what you're happy to splash on, and what you'd rather not. It takes five minutes and saves three days of low-level resentment.

The person with more to spend is not always the one who pushes. Sometimes it's the reverse: the person on a tighter budget overspends because they don't want to seem like a drag, and then feels it when they get home. The conversation protects both of you.

The Separate Tabs Approach

Split shared costs (accommodation, transfers, entrance fees you do together) fairly down the middle. For everything else, pay your own way. Meals are the main one: if you order differently, pay differently. This removes the accumulating arithmetic where one person's three courses and a bottle of wine gets averaged across both of you every single evening.

It feels slightly transactional and it is slightly transactional. It also works.

The One Splurge Per Trip Agreement

Agree before you go that there's one thing each of you can propose doing that goes above budget, and the other will genuinely consider it. This gives the higher spender a release valve and gives the lower spender the power to say yes once rather than feeling pressured repeatedly.

It also means the splurge actually happens with goodwill behind it, rather than as the conclusion of a negotiation neither person wanted to have.

How to Say No to the Expensive Restaurant Without Ruining the Evening

"That's a bit over what I want to spend tonight" is a complete sentence. You don't need to apologise for it or dress it up. What you can do is offer an alternative: here's somewhere two streets away that looks good and costs less. You're not vetoing the evening, you're steering it. That's a different thing and most people respond to it well.

If they don't, that's useful information about your travel compatibility.

The Accommodation Decision Is the Biggest Lever

More than meals, more than activities, the accommodation decision sets the budget for the whole trip. A room that costs 40 pounds more per night is 160 pounds over four nights. That's the difference between comfortable and stretched for a lot of people.

Decide this one together explicitly. If your partner wants the nicer hotel and you can't stretch to it, say so before the booking is made. Paying half of something you can't afford and then resenting the nice towels for four days helps no one.