A complete guide to managing travel expenses for business trips

(Reading time: 7 minutes)

If you ask anyone in your business responsible for managing business trip expenses, they'll probably say it's like juggling 12 balls at once. Put simply - too many factors to think about, and a wide range of things that can go wrong.

Flights, hotels, meals, transportation and miscellaneous costs all demand attention. Not to mention, each receipt seems to mysteriously disappear into the void just when you need it the most.

Yet, keeping these expenses in check is crucial for any business, not only to avoid unnecessary costs but also to maintain financial transparency and ensure your company's budget is being used wisely.

In this guide, we'll walk through the essential steps for managing travel expenses effectively - from the moment the trip is planned to the final expense report. We'll also take a look at how expense management software can support you.

Why is business travel expense management important?

Business travel is often essential for companies to build relationships, expand their operations, or attend crucial industry events. However, managing the costs associated with these trips can be challenging, especially when employees are travelling to multiple locations or incurring various expenses over an extended period.

This is where expense management software steps in as a powerful tool, streamlining processes, improving accuracy, and ensuring travel expense policy compliance.

Our step-by-step guide walks you through the key stages of managing travel expenses and highlights the role and value of expense management software at each stage, complementing our separate overview of what counts as business travel expenses and how they work for tax purposes.

What is meant by a travel expense?

Business travel expenses are the costs incurred by an employee when travelling for work-related purposes, and mileage is often a major component that can be simplified with automatic mileage tracking and HMRC-compliant fuel calculations. These typically include:

Transport and travel

The cost of flights, trains or car transport.

Accommodation

Expenses for hotels, rented apartments, or short-term accommodation.

Meals and incidentals

Daily food, drinks, tips, and small personal expenses like laundry are often handled through a per diem system, with rates based on government calculations and adjusted by destination to simplify reimbursement for meals and incidental expenses.

Ground transportation

Taxis, car rentals, public transport, or ride-sharing services like Uber.

Miscellaneous

Any additional costs, such as internet fees, parking, or conference attendance fees.

Why is effective business travel expense management important?

Uncontrolled travel spending can quickly balloon out of proportion, and with global corporate travel spending reaching $1.48 trillion in 2024, and business travel expenses in Europe projected to reach 389.9 billion euros in 2026, it can lead to serious financial waste. For businesses operating with tight margins, every pound counts, so stronger oversight can drive real cost savings.

But beyond the direct financial impact, good travel expense management also helps ensure compliance with company policies, prevent fraud, and provide an accurate picture of your company's financial health across business expenses tied to employee business trips. UK companies lose over £30,000 on average to fraud annually. Plus, it reduces stress for employees who no longer need to worry about losing receipts or being reimbursed late, especially when using comprehensive expense management software like Expend.

Without proper control, travel expenses can quickly become a significant cost burden for businesses. Unchecked spending can lead to budget overruns, financial waste, and difficulty tracking employee reimbursements.

Also, the traditional approach is to manage expenses manually, but this often leads to errors, lost receipts, and delays in processing. Companies with weak T&E processes can waste up to 20% of finance teams' time.

How can travel and expense management software help?

Expense management platforms and modern management systems can simplify the process with automated expense workflows, not just basic categorising and tracking, while keeping travel and expense activity in one place from the start. For example, Expend provides employees with a mobile app to log expenses as they occur, with receipt capture, approval workflows and auto-matching of receipts to expenses built in.

This AI technology eliminates guesswork and human error while offering real-time visibility into how much is being spent during a trip. Automated T&E platforms can reduce expense processing time by 80%.

How does pre-trip planning help reduce costs and streamline expense tracking?

Effective planning is the foundation of good travel expense management. Before any trip, companies can take steps to limit unnecessary costs and prevent unexpected expenses.

Here are a few useful guidelines:

1. Set a travel budget: establishing clear budget parameters for each trip can help employees understand their financial limits. It also helps your business to keep travel costs predictable.
   

2. Book in advance: early booking for flights and accommodation can produce significant savings on travel costs, especially when employees book travel through a centralised travel booking process instead of making ad hoc reservations. Aim to avoid last-minute bookings, which are almost always more expensive.
   

3. Choose cost-effective accommodation options: consider alternatives like short-term rentals or budget hotels rather than premium chains, especially for longer trips. Comparing flights hotels and other options early can save money without compromising comfort or convenience.
   

4. Negotiate corporate rates: if your company has frequent travel needs, it's worth negotiating corporate rates with airlines, hotels and car rental companies. Many businesses can secure discounted rates or perks (like free Wi-Fi or breakfast) through these agreements.
   

How can expense management software help with business trip planning?

Expense management software can play a vital role in managing business travel even before departure. For instance, automated policy controls built into these platforms ensure that trips comply with company rules from the outset, and a one platform approach can simplify travel requests and approvals for employees and finance teams.

Some tools also let staff book travel within the same workflow, which helps simplify travel and keeps plans aligned with policy. Managers can review and approve trip requests in real-time, eliminating delays in the planning process. Some software even has forecasting tools, allowing finance teams to predict travel expenses based on historical data, which aids in budgeting and financial planning, supports corporate travel planning, and gives better visibility into travel spend.

Why is real-time expense tracking important?

No matter how well you plan, there will always be unforeseen expenses that pop up during a business trip. That's why tracking expenses in real-time is crucial. If employees wait until they return to document everything, it's easy to lose track of minor purchases, misplace receipts, or forget details that might be important for accurate expense reporting.

Tracking expenses as they happen is critical for accuracy. Relying on employees to compile all their receipts and submit reports after a trip often leads to missing receipts, forgotten expenses, and delayed reimbursements. In fact, 71% of finance professionals spend over 30 minutes filing each expense report.

Luckily, there are expense management software tools available to make real-time tracking easier.

Real-time tracking ensures that all costs are documented immediately, improving accuracy and transparency. Real-time expense tracking is one of the biggest advantages of modern expense management tools.

Synchronisation and integration are important elements of real-time tracking. Expend's Card Connect™ enables companies to connect all of their business cards and corporate card programmes to a single expense management platform, which has multi-card acceptance. This means that users can view and submit all of their expense claims in one app, whether, for example, they paid on their corporate Barclaycard or business HSBC card. Expend's virtual corporate cards can also be issued instantly for urgent travel needs, or physical cards can be issued for use worldwide. Policy enforcement and budget controls are automatically applied to all card travel spend, expense purchases can have receipts attached instantly in the mobile app, and finance teams can approve expenses in minutes.

These transactions can also sync with accounting systems such as QuickBooks and Xero.

Integration also enables thorough reconciliation, meaning that all purchases and expenses are synced through the expense management process to accounting systems.

Why is policy compliance essential in travel management?

A well-defined travel policy ensures that employees adhere to spending limits and guidelines, avoiding unnecessary or inappropriate expenses.

Without a clear policy, there's a risk of inconsistent spending, confusion over what's reimbursable, and unnecessary costs. There is also the risk of inconsistent practices, overspending, and difficulty controlling overall travel costs.

However, getting employees to follow the travel policy can be a challenge, especially when they are busy with work during a trip, which is why investing time in a clear, well-designed travel expense policy is so important. A formal e policy should also be kept up to date and applied consistently across the business.

So, just having a policy isn't enough - employees need to understand and follow it.

Here's how to make sure your team stays compliant:

1. Develop a clear and comprehensive travel policy: the first step is ensuring that your travel policy covers everything from allowable expenses to approval processes. Use a travel expense policy template for consistency when drafting allowable expenses, approval routes, and daily subsistence allowance rates. It should outline what is and isn't reimbursable (e.g., economy class flights only, no alcohol on meal receipts) and the process for submitting expenses. Make sure the policy is accessible to all employees, perhaps as part of their onboarding materials.
   

2. Communicate the policy clearly: don't assume that everyone knows the policy just because it exists. Communicate it regularly, particularly before major trips or conferences. Sending reminders or having a pre-trip checklist helps ensure that employees are fully aware of their responsibilities.
   

3. Automate policy enforcement: the best way to ensure compliance is to bake the rules into the tools employees are using. Most travel expense management platforms allow you to set custom rules for things like maximum daily spend allowances, or ensuring receipts are attached to all expense reports. Automated checks help catch policy violations at the point of spend or booking, so when an employee books something outside of those rules, they'll be flagged immediately, preventing issues before they arise.
   

4. Monitor spending trends: tracking employee spending over time can help your business spot any patterns of non-compliance, or areas where the policy may need tightening. For example, if you notice a trend of employees overspending on ground transportation, you might want to implement stricter guidelines around using ride-shares versus public transportation.
   

Expense management software can support policy enforcement. Platforms like Expend allow companies to integrate a policy directly into their tools, so the rules guide submissions automatically.

Many expense management software tools also provide managers with dashboards that show compliance rates across teams or departments, making it easier to spot trends and address issues proactively. For example, if a particular employee or team consistently submits expenses that are out of policy, the finance team can step in and provide additional guidance, which is especially valuable for non-profits and charities that need high financial transparency.

What are best practices for post-trip expense reconciliation, and why is it important?

Once the trip is over, the final step is reconciling business expenses after trips. This involves collecting receipts, ensuring all expenses align with company policy, and processing reimbursements where applicable.

If expenses are not properly reconciled, businesses risk overpaying for reimbursements or losing visibility into how much was actually spent.

Post-trip reconciliation can be a tedious process without the right tools. Expense management software simplifies reconciliation by centralising all expense data in one system, which also supports smoother month end reconciliation.

Here's how it works:

• Automatic expense reports: as employees log expenses throughout the trip, they can simply edit and submit the expense reports for approval with a click. Some tools even auto-generate reports based on pre-set categories, saving significant time, and setting submission deadlines helps prevent backlogs.

• Reduced reimbursement: providing employees with controlled payment methods for travel costs removes the need to use their personal funds. This makes expense reimbursement simpler and reduces delays, avoiding the weeks of waiting for money back from their employer that can often frustrate team members.

• Data insights: after the trip, expense management tools provide detailed analytics that allow your business to evaluate spending trends. Reviewing spending patterns can help teams control future spend, identify savings opportunities, refine travel policies, and better forecast future travel budgets.

We hope that this blog has helped explain how effective management of travel expenses is vital to controlling costs, ensuring compliance, and keeping employees satisfied with prompt reimbursements, or trusting them with budget-controlled expense cards to reduce the need for reimbursements altogether.

Expense management software can add value at every stage of the process. By automating many of the time-consuming tasks associated with travel expense management, these tools help businesses reduce errors, eliminate fraud, and increase financial transparency.

Whether you're managing a small team's travel or handling the logistics for a global workforce, investing in the right expense management software can save both time and money, while making the process more streamlined and efficient.

Disclaimer: This is not legal, accounting, or tax advice - it's simply a guide. If you need help, check with your accountant or contact HMRC directly.