With energy pressures expected to persist as the year progresses, many organisations are being reminded how quickly external shocks can affect the bottom line. As overheads continue to rise, businesses will be looking for opportunities to improve efficiency and gain greater control over spending. But while attention often focuses on major operational costs, some of the most persistent overspend comes from smaller, everyday behaviours that quietly create an invisible drain on budgets.

One area where these hidden costs frequently emerge is in the way travel is booked. Business travel remains critical for building and maintaining client relationships, securing new opportunities and supporting growth. However, inefficient booking habits can quietly erode these benefits through missed savings opportunities and unnecessary friction during the booking process. These costs rarely attract attention because they build gradually through seemingly small everyday decisions made across an organisation.

The small decisions that add up

For employees juggling busy workloads and competing priorities, convenience naturally becomes a key driver of behaviour. Over time, this can lead to inefficient booking habits that inadvertently increase business costs.

Our research found that almost three in five business travellers (58%) book trips less than a week before departure. However, using Trainline Business, rail fares booked at least one week before the day of travel are on average 58% cheaper.[1] At the same time, two fifths (40%) default to familiar booking options, even when they may not be the most efficient choice.

The occasional last minute booking or one employee defaulting to a familiar route may not appear significant on its own. However, when these behaviours occur across multiple teams and journeys throughout the year, they can quickly drive up costs. For SMEs operating with tighter margins, the impact is amplified. Lean teams and fewer resources mean even small inefficiencies can have significant consequences.

Smarter systems, smarter spending

When businesses look for ways to reduce avoidable spend, it can be tempting to tighten internal controls or introduce additional policies to try and curb costly booking behaviours. In practice, however, stricter rules do not always address the underlying issue.

In fast-moving environments where meetings, client requests and schedules can change at short notice, employees need to feel confident they are making the right decisions. If systems feel overly complicated or restrictive, people will continue to find workarounds that provide that reassurance. Our research found that a third (33%) of business travellers compare journeys across several different websites or apps before booking, while more than one fifth (22%) double check the information provided by their system.

There is also a wider cost to this behaviour. When employees spend extra time comparing platforms or checking information, it can take them away from other high-value tasks, slowing activity that drives growth. In fact, a third (33%) of business travellers said a single platform with clearer guidance and centralised information would free up more time for them to focus on revenue-generating work.

More often than not, these behaviours are a symptom of inefficient legacy booking systems. Fragmented tools can make it harder for employees to identify the best-value option quickly and confidently, while limited visibility over booking behaviour and spending patterns makes it difficult for businesses to spot inefficiencies. Sticking with existing systems may seem like the simplest option in the short term. However, it can ultimately leave employees navigating unnecessary complexity while giving businesses less oversight of travel spend, reducing their ability to identify where costs are accumulating.

Creating better booking behaviours

When booking systems are clear, intuitive and easy to navigate, employees naturally gravitate towards smarter choices.

Nearly two fifths (39%) said having one trusted platform to manage travel would make the process easier, while almost a third (30%) said fewer steps in the booking process would improve their experience. These findings point to a clear appetite amongst business travellers for simpler and more streamlined booking processes.

In practice, this means making it easier for employees to find and select the best option at the point of booking. That could include providing centralised travel information and guidance, surfacing cost-effective and low-carbon fares more prominently and giving employees access to rail content from multiple train operating companies through a single platform. This can help employees make more informed booking decisions, while saving valuable time and reducing unnecessary costs.

Making cost-efficient choices easier

As external pressures continue to drive up operational costs, organisations have less room for inefficiency hidden elsewhere in the business. While external energy costs sit outside their control, businesses have far greater influence over the systems, processes and behaviours that shape day-to-day spending.

Those best placed to navigate this environment will be the businesses that can identify where avoidable costs are quietly emerging and give employees the tools and visibility they need to make better booking decisions. By investing in clearer and more intuitive systems, organisations can reduce invisible overspend while building resilience to external shocks and gaining greater oversight of costs in the long term.

[1] Average saving on Advance fares booked at least one week before day of travel vs Anytime fares purchased on day of travel from 1 October 2024 to 30 September 2025. Subject to availability. Excludes coach.

Sophie Fleming, Global Head of Trainline Business