The trip costs people forget to budget for

Most trip budgets cover flights, accommodation and a daily allowance for food. Then the card statement arrives and the total is noticeably higher. The difference is usually a set of small, predictable costs that nobody wrote down. Here are the ones to plan for.

Getting to and from places

• Airport and station transfers. The trip from the airport to your hotel, and back, at both ends. In some cities this is a cheap train; in others it is a long taxi ride.
• Getting to your own airport. Parking, a taxi at 5am, or a train ticket. Easy to forget because it happens at home.
• Local transport. Day passes, single tickets and the occasional taxi when it rains.
• Moving between stops. On multi-city trips, every move has a ticket and often a taxi at each end.

Flights beyond the fare

• Bags. Many fares include only a small under-seat item. A cabin bag or checked bag can add a meaningful amount each way, per person.
• Seat selection if you want to sit together.
• Changes. The cheapest fares often can't be changed, or change only for a fee plus the fare difference.

Accommodation extras

• Tourist or city taxes. Many cities charge a nightly tax per person, often paid at the property and not included in the price you saw when booking.
• Cleaning and service fees on rental homes.
• Deposits held on your card, which tie up money even if they are returned.
• Breakfast, if it isn't included and you expect it.

Money costs

• Card fees. Some cards charge a percentage on every foreign transaction, plus a fee for cash withdrawals abroad. Check yours before you go.
• Dynamic currency conversion. When a card machine or cash machine offers to charge you in your home currency, decline and pay in the local currency. The "convenience" rate is usually worse.
• ATM fees charged by the machine's owner, on top of your bank's fee.

Things that are easy to underestimate

• Food and drink in expensive cities. A daily allowance that works in one city can be half what you need in another. Look up typical prices for the specific place.
• Tips, where tipping is expected.
• Entry tickets. Museums, viewpoints and tours add up quickly over a week.
• Phone data, if your plan doesn't include roaming.
• Travel insurance, which should be in the budget from the start.

How to budget for them

1. List costs by type, not by day. Accommodation, transport, food, activities, extras. It is easier to spot what's missing.
2. Use ranges, not single numbers, for anything you haven't booked. A low, expected and high figure for food is more honest than one number.
3. Note what each estimate assumes — "two people, three nights, breakfast not included" — so you can update it when plans change.
4. Keep a contingency of around ten per cent for the things on this list you still missed.
5. Track what you actually spend against the plan, so the next trip's budget is better.

If you are travelling as a group, decide early which costs are shared and which are personal (see our guide to splitting travel costs).

Elio Travels has a trip budget built in: cost lines with units and ranges, a note of assumptions, separate totals per currency, and "What if?" scenarios — one night fewer, a cheaper hotel — that show the effect before you change anything.