When I started my company, I thought the hard part would be finding customers. I was wrong. The hard part turned out to be keeping track of where the money went once it came in.
In the first year, our expenses lived everywhere: in my personal bank app, on a shared company card nobody wanted to be responsible for, in a folder of crumpled receipts in my desk drawer, and in a spreadsheet that was “updated weekly” and actually updated whenever someone panicked about cash flow. At the end of the financial year, our accountant sent back a bill that made me wince, and most of it was for untangling the mess we had created.
That was the turning point. Over the next eighteen months, I tested more expense tracking and spend management tools than I care to admit. Some were brilliant. Some were overkill. A few quietly paid for themselves many times over. This article is the honest breakdown of what worked, what didn’t, and how the right stack cut thousands from our overhead.
Why Expense Tracking Is an Overhead Problem, Not Just an Admin Problem
Most founders treat expense tracking as boring paperwork. That’s a mistake, because poor tracking costs real money in ways that don’t show up as a single line item.
First, there’s the accounting bill. Accountants charge for time, and time spent chasing missing receipts, reconciling mystery transactions, and categorising a year’s worth of spending in one go is expensive time. Clean books mean shorter, cheaper engagements.
Second, there’s leakage. Forgotten software subscriptions, duplicate tools across teams, trials that silently converted into annual plans. When nobody can see the full picture, small recurring costs pile up.
Third, there are missed tax deductions. If you can’t prove an expense was a legitimate business cost, you can’t claim it. Every lost receipt is a small tax penalty you pay voluntarily.
Finally, there’s founder time. Every hour I spent matching bank lines to receipts was an hour I wasn’t selling, building, or hiring. Put a realistic value on that hour and the numbers become uncomfortable very quickly.
Once I started seeing expense tracking through that lens, investing in proper tools stopped feeling like a cost and started feeling like the obvious move.
1. Xero: The Accounting Backbone
Every expense tool needs somewhere to send its data, and for us that became Xero. As a UK-registered company, we needed something that handled VAT properly and played nicely with HMRC’s Making Tax Digital requirements. Xero did that out of the box.
The real savings came from bank feeds and reconciliation rules. Instead of exporting statements and typing them into a spreadsheet, transactions flowed in automatically every day. We set up rules so that recurring costs, such as our hosting provider, our office address service, and common software subscriptions, were categorised without anyone touching them. Within a couple of months, around two-thirds of our transactions were reconciling themselves.
The effect on our accountant’s bill was immediate. Year-end went from a multi-week rescue operation to a review of books that were already mostly correct. That alone covered the subscription cost several times over.
Best for: Small to mid-sized businesses, especially in the UK, Australia, and New Zealand, that want a solid accounting core with a huge ecosystem of integrations.
Watch out for: Pricing tiers based on features and transaction volume. Check which plan you actually need before signing up, and review it annually as your company grows.
2. Dext: Killing the Receipt Drawer
If Xero was the backbone, Dext (formerly Receipt Bank) was the tool that finally emptied my receipt drawer.
The idea is simple. You photograph a receipt, forward an email invoice, or connect a supplier account, and Dext extracts the supplier, date, amount, and VAT, then publishes it straight into your accounting software. The accuracy was far better than I expected, even with faded thermal-paper receipts from taxis and restaurants.
What saved us money wasn’t just the time. It was the deductions we’d previously been losing. Before Dext, I’d estimate we were failing to evidence a meaningful slice of our legitimate expenses simply because receipts went missing between the purchase and the spreadsheet. Once the habit became “snap it immediately,” that leakage almost disappeared.
We also started using the supplier fetch feature, which automatically pulls invoices from common vendors. That removed the monthly ritual of logging into a dozen portals to download PDFs.
Best for: Any business that deals with a high volume of paper or emailed receipts and invoices.
Watch out for: It works best when paired with an accounting platform. On its own, it’s a very good filing cabinet rather than a complete system.
3. Pleo: Company Cards That Don’t Cause Chaos
The shared company card was the source of most of our early confusion. Someone would buy something, forget to tell anyone, and three weeks later I’d be staring at a bank line trying to work out what “AMZN MKTP” actually meant.
Pleo replaced that with individual cards for each team member, physical and virtual, each linked to the company account with its own spending limits. When someone pays, the app immediately prompts them to snap the receipt and add a note. By the time the transaction reaches the books, it already has context attached.
Three things made Pleo worth it for us. The first was accountability: when every card has a name on it, spending naturally becomes more considered. The second was control: we set monthly limits per person and per category, so nobody could accidentally sign up for an expensive annual plan. The third was virtual cards for subscriptions. We created a dedicated card for each major SaaS tool, which meant cancelling a service was as simple as freezing its card. No more subscriptions quietly renewing after we’d stopped using them.
The subscription clean-up alone was eye-opening. When we audited everything running on company cards, we found several tools nobody was using anymore and a couple of duplicates where two people had signed up for the same service separately.
Best for: Teams of roughly three to fifty people in the UK and Europe who need to give staff spending power without losing oversight.
Watch out for: Per-user pricing adds up as you grow, so do the maths against the time you’re saving.
4. Revolut Business and Wise Business: Cutting the Hidden Cost of Currency
This one surprised me. I didn’t initially think of banking as an expense tracking decision, but for a company paying suppliers and freelancers in multiple countries, it absolutely is.
Traditional banks were charging us through two channels: explicit transfer fees and, more painfully, exchange rate markups hidden inside the conversion. On any single payment it didn’t look like much. Across a year of international payments, it added up to a figure I was genuinely annoyed about.
We moved most of our international payments to Wise Business, which uses the mid-market rate with a transparent fee, and used Revolut Business for day-to-day multi-currency spending and additional cards. Both provide clean, categorised transaction data that feeds into Xero, so the switch also improved our bookkeeping.
The combination gave us something we’d never had before: a clear, real-time view of exactly what international payments were costing us.
Best for: Any startup with overseas suppliers, remote contractors, or customers paying in foreign currencies.
Watch out for: Plan limits and fees vary by tier and change over time, so compare current pricing against your actual monthly volume.
5. Zoho Expense: The Budget-Friendly All-Rounder
Before we settled on Pleo, we ran Zoho Expense for several months, and I still recommend it to founders on a tight budget.
It handles receipt scanning, mileage tracking, per diem rules, approval workflows, and reporting, and it’s noticeably cheaper than many competitors. If you’re already using other Zoho products, the integration is seamless. It also has a free tier suitable for very small teams.
We eventually moved on because we wanted company cards tightly integrated with the expense workflow, but for businesses that primarily reimburse employees for out-of-pocket spending, Zoho Expense is hard to beat on value.
Best for: Early-stage companies and small teams that mainly deal with reimbursements and travel expenses.
Watch out for: The interface feels busier than some newer tools, and the best experience comes when you’re inside the Zoho ecosystem.
6. Expensify: Still the Travel Expense Specialist
Expensify has been around longer than most of the tools on this list, and it still shines in one area: travel. Its SmartScan receipt capture is fast, it handles multi-currency trips gracefully, and it can pull in bookings and generate reports that finance teams actually like reviewing.
We used it for a period when team members were travelling frequently for client meetings. It significantly reduced the time between someone returning from a trip and their expenses being approved and reimbursed, which kept staff happy and our books current.
Best for: Teams with regular business travel and lots of reimbursable spending.
Watch out for: Its pricing model and plan structure have changed several times over the years, so read the current terms carefully.
7. Wave: The Starting Point for Solo Founders
If you’re a solo founder or freelancer and not yet ready to pay for accounting software, Wave is worth a look. It offers free core accounting and invoicing, with paid add-ons for things like receipt scanning and payments.
It won’t scale with you forever, and it’s strongest for businesses in North America, but it’s a far better foundation than a spreadsheet. The habits you build using it, such as categorising regularly and keeping receipts attached, transfer directly to more advanced tools later.
Best for: Solo founders and very early-stage businesses with simple needs.
Watch out for: Regional feature availability and limited scalability as your team grows.
How the Savings Actually Added Up
It’s easy to write “saved thousands” in a headline, so here’s where the money actually came from, in rough order of impact.
Lower accounting fees. Clean, reconciled books meant our accountant spent far less time on our file. This was the single biggest saving.
Cancelled and consolidated subscriptions. Virtual cards and a proper audit exposed unused tools and duplicates. Cancelling them created an immediate, recurring monthly saving.
Lower foreign exchange costs. Moving international payments to transparent-rate providers cut the hidden markup we’d been paying for years.
Recovered deductions and VAT. Capturing every receipt meant claiming every legitimate expense and every pound of reclaimable VAT.
Founder and team time. Hours per month that used to go on admin went back into revenue-generating work. This is harder to quantify, but arguably the most valuable saving of all.
Against all of that, the combined subscription costs of our tools were modest. The return wasn’t close.
How to Choose the Right Stack for Your Startup
You don’t need every tool on this list. Here’s the framework I’d use if I were starting again.
Start with your accounting core. Pick Xero, QuickBooks Online, or a free option like Wave, based on your country and complexity. Everything else plugs into this.
Solve your biggest pain point next. If receipts are the problem, add Dext or use your expense tool’s scanning. If shared cards are the problem, look at Pleo, Ramp, or Brex depending on your region. If currency costs hurt, fix your banking.
Check integrations before you commit. A tool that doesn’t sync cleanly with your accounting software just creates a new kind of mess.
Set rules from day one. Categorisation rules, spending limits, and a “snap the receipt immediately” culture do more than any individual feature.
Review quarterly. Your needs change as you grow. A tool that was perfect at three people may be wasteful or insufficient at twenty.
Final Thoughts
The biggest lesson I learned wasn’t about any specific app. It was that financial visibility is a competitive advantage. When you know exactly where every pound goes, you make faster, calmer, better decisions about hiring, pricing, and growth.
The apps are just the mechanism. What they really bought us was clarity, and clarity turned out to be one of the most cost-effective investments our startup ever made.