Updated: July 2026
Centralising spend management can cut processing time by up to 80% on every expense, card transaction and invoice. Plus, it unlocks additional savings through more accurate VAT reclaims, reduced errors, duplicate and fraud prevention, and out-of-policy spending.
For a 500-person company, the savings can quickly reach six figure sums.
By removing the manual work of chasing receipts, coding invoices, and reconciling cards - or as we call it, ‘shadow work’ - you get the compounding effect of not just getting faster, but making time for real work. So your finance team can spend time on strategy rather than wasting hours chasing lost receipts.
This article covers where the savings come from, how to unlock them by putting the right controls in place, and how to calculate the savings for your company.
Challenges in spend management
When your spend management runs through multiple systems, for example one tool for travel bookings, one for expense claims, and another for company cards, it leads to a raft of challenges.
Finance teams lose visibility into what’s actually being spent. Employees ignore policies they can’t find or have to spend too much time to understand. And the manual process of switching from one platform to the next risks errors and leakage.
1. No real-time spend visibility
Without a live view of who's spending what, budget owners and finance teams are essentially flying blind until month or quarter-end. By the time finance is able to reconcile the statements, invoices, and expenses the damage is often done.
2. Policies that become difficult to follow
Your travel policy might live in a 47-page PDF buried on the company intranet. Instead of read, digest, and remember it, many employees will choose to book off-platform or pick non-preferred suppliers. It’s usually not malicious, but when vague or hard to understand policies combine with friction-filled tools, employees will choose the easiest path forward. And that’s not always in the company’s best interest.
3. Manual processes that leak money
Every manual handoff or switch from one system to the next is a chance for errors, and every error costs you. Things like duplicate expense submissions, out-of-policy spending, or even fraud can slip through the net as a result of disconnected systems or overly-manual processes like managing spend through a web of different spreadsheets.
Manual vs automated spend
What automated spend management actually does
Automation doesn't necessarily mean "set it and forget it." It means your platform does the tedious parts like matching receipts to transactions, flagging duplicates, and routing approvals.
This is what we call shadow work. It’s entirely necessary, but it doesn’t have to take up human capital that should be reserved for higher impact work.
The objective should be that your team handles exceptions and edge cases, not every line item in every single report.
Consolidating spend on one platform
Perk pulls together three streams that in many companies run in separate systems:
Employee expenses (meals, travel, client entertainment)
Card transactions (virtual and physical)
Supplier invoices (software, services, contractors)
Everything flows into your ERP or accounting system from one source, not five.
Automating spend processes
Here's what moves from your team's to-do list to the platform's job:
Pre-trip and pre-spend approvals — budget owners see requests before money moves, not after
Budget caps per team or category - hard stops on overspend, visible to managers in real time
Real-time policy checks at point of booking or purchase — employees see only in-policy options
AI-powered receipts capture — there’s no manual data entry. The system reads and codes everything automatically
Automated VAT coding - recognizes rates across countries and prepares compliant documentation so your VAT claims are accurate and your audit records are impeccable
Duplicate detection - flags identical or near-identical submissions before payment
Audit trails — every approval, change, and exception logged and exportable
KPIs finance teams should track in spend management
Once you've consolidated your spend, these metrics tell you whether the system is actually working:
% spend under policy - are teams booking within approved suppliers and rates?
Time to close per expense/invoice - how long does it take from submission to posting?
% of claims auto-approved - what share of transactions needs no human review?
Cost per transaction - what's the all-in processing cost for one expense or invoice?
VAT reclaim recovery rate - how much eligible VAT are you actually claiming back versus before?
Duplicate detection rate - how many duplicates does the system catch compared to the previous system
Supplier consolidation ratio - are you leveraging volume with fewer vendors and making the most of corporate rates/discounts?
Budget variance - how close are teams to their allocated budgets at any point in the month?
Potential savings from automated spend management
Savings show up in four different places. The first cuts your per-transaction cost while the other three recover money that typically leaks out from manual processes.
1. Process cost reduction
Every expense report or invoice that moves through your system costs you in labor hours at every step from data entry to approval routing, exception handling, and reconciliation. GBTA research shows the all-in cost of processing a single expense report is approximately $58. This figure includes labor, technology, and time spent chasing missing documents and fixing exceptions.
Automated spend management reduces these costs dramatically. GBTA benchmarks show a 50% reduction in employee submission time (from 20 minutes to 10 minutes per report) and 70% reduction in finance processing time through automated reconciliation and approval workflows.
The additional upside for your finance team is that the time they save can be spent on more creative, strategic finance work rather than chasing up receipts and performing repetitive processing tasks.
2. VAT and tax reclaim
VAT rates vary by country, as do the rules on what’s reclaimable and what’s not. In most countries, eligible expenses include hotels, meals, conferences, ground transport, and some services — but only when you have a compliant invoice or receipt with the supplier's VAT number.
Many companies leave this money on the table because collecting and validating every transaction manually is not only error-prone but the labor cost of doing it often outweighs the reclaimed amount.
Automated VAT coding recognises where an expense was incurred, applies the correct tax rate, validates the documentation (the receipt or invoice) and then sorts out the paper trail for the reclaim. The reclaim itself still goes through local tax authorities, and some companies will have VAT reclaim tools to help with this, but the system does the legwork to get you accurate, audit-ready documentation to ensure you’re reclaiming all the tax owed.
3. Duplicate and fraud prevention
Errors and anomalies cost companies in different ways. GBTA research shows 19% of all expense reports contain at least one error such as wrong category, missing receipt, or duplicate submission. Each error costs approximately $52 (£41) to correct, including the time spent finding the error, chasing the submitter, and re-processing the claim.
Anomalies aren’t always errors. They can also point to irregular patterns like duplicate submissions across departments, out-of-policy merchants, unusual spend patterns, and potential fraud. Data from Perk suggests the average company experiences 2.1 anomalies per employee per year, with each uncaught anomaly costing £50 in overpaid expenses, audit risk, or recovery costs.
Automated duplicate detection compares transaction amounts, dates, vendors, and receipt images in real time, flagging potential matches for review before payment goes out. Combined with policy enforcement and AI-powered anomaly detection, platforms like Perk can reduce errors by 70% and prevent 80% of anomalies before they even reach finance.
4. Rate and policy leakage
Out-of-policy hotel and flight bookings can cost companies 10-20% more than negotiated rates, according to travel industry studies. When employees book outside the platform or ignore preferred suppliers, they're not trying to waste money — they just don't see the savings you've negotiated.
Consolidating travel and spend on an intelligent platform like Perk means employees see pre-negotiated rates first, and finance teams can set controls such as automatically approving in-policy bookings while routing out-of-policy requests to a human for additional review.
By making in-policy spend the default option and the path of least resistance, it encourages employees to spend within the rules. And when they do go outside of policy you have all the safeguards in place to prevent money leaving the company before someone in the finance team has had a chance to check it.
5. FX transaction fees
Foreign currency transactions typically carry a 2-3% fee from traditional banks and card providers. If 20% of your annual card spend is international, those FX fees add up quickly. Perk charges approximately 0-1% on international transactions and that 2% difference on foreign spend translates directly to bottom-line savings.
For a company with £600,000 in annual card spend and 20% international transactions, eliminating a 2.5% FX fee saves £3,000 annually.
6. Cashback on card spend
Perk's corporate cards offer up to 1% uncapped cashback on all transactions. Unlike credit card rewards programs with tiers and caps, it’s a straightforward percentage back on every purchase. For companies with significant card spend, the cashback alone can offset a meaningful portion of platform costs.
Building the business case
When you're sizing the opportunity, baseline these cost categories:
1. Labor cost — time spent by employees and finance teams on expense submission, invoice coding, and approval chasing
2. Error rework - cost to correct mistakes: wrong categories, missing receipts, duplicate payments
3. Anomaly losses — overpaid expenses from duplicate submissions, out-of-policy purchases, and uncaught fraud patterns
4. Lost VAT — eligible international VAT that goes unclaimed due to documentation gaps
5. FX fees — foreign exchange transaction fees on international card spend
6. Foregone cashback — rebates available on card spend but not captured
Use our ROI calculator [add link] to model these savings for your company size and spend profile. Savings ranges vary by region, industry, and current process maturity — the calculator gives you a tailored estimate based on your inputs.
How much can you save with Perk?
Here's what the maths looks like for a 100-employee company in the UK with £650,000 in annual travel spend and £400,000 in card spend.
Current state annual costs
- Employee time submitting expenses: £5,787
- Finance team processing expenses: £3,903
- Error correction costs: £7,366
- Expense anomaly losses: £10,500
- Total current state cost: £27,566
Process savings with Perk
Employee time saved (50% reduction): £2,8934
- Finance processing time saved (70% reduction): £2,737
- Error reduction (70% fewer errors): £5,156
- Anomaly prevention (80% caught before payment): £8,400
- Cashback earned (1% on card spend): £4,000
- FX transaction savings (2.5% fee eliminated on 20% international spend): £2,000
- Total annual process savings: £25,182
Investment
- Platform license (100 users at £12/user/month): £13,800 annually
- Total annual investment: £13,800
Net annual value
£11,38212,682 (£256,1482 savings - £13,800 investment)
ROI: 82%61.5491.9%
Payback period: 6.63 months
This example excludes VAT reclaim and invoice processing savings (requires the invoicing add-on). It also assumes no existing travel management relationship — companies already using Perk for travel can typically negotiate better combined rates.
The model uses conservative industry benchmarks: GBTA for expense processing times and error rates and internal Perk customer data for anomaly detection rates. Your actual savings depend on current process maturity, transaction volume, error rates, and the gap between current state and what automation unlocks.
Spend management vs expense management vs AP automation
These terms get used interchangeably, but they're not the same thing.
Spend management is the umbrella. It covers all company spending — employee expenses, supplier invoices, card transactions — on one platform with unified policies, approvals, and reporting.
Expense management is the employee side: travel, meals, client entertainment, and other out-of-pocket spend that gets reimbursed or paid via corporate card.
AP automation is the supplier side: invoice capture, coding, PO matching, and payment processing for goods and services your company purchases.
The difference in practice:
The reason to consolidate is compounding savings. Expense tools alone won't catch duplicate invoices. AP tools alone won't enforce travel policy. When you run expenses, invoices, and cards through one system, you get unified controls, consolidated visibility, and reporting that actually closes fast.
Want to explore by yourself?
See what your company could save with centralised spend management. Our ROI calculator models your potential savings based on company size, transaction volume, and current process state.
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