The petty cash tin sits in the top drawer. Nobody knows how much is in it until someone counts. Last month $340 went missing and nobody could explain where. This is how most Australian businesses still handle small purchases.
If your team still passes around a float for coffees, office supplies, and client lunches, you already know the problems. The reconciliation headaches. The missing receipts. The awkward conversations when the numbers don’t add up.
There is a better way. A petty cash alternative that gives every team member their own card with pre-set limits, captures receipts at point of purchase, and shows you exactly where every dollar goes in real time.
Why Petty Cash Costs More Than You Think
Petty cash feels simple. A tin, some notes, a logbook. But that simplicity hides real costs that compound every month.
Theft and Shrinkage
The Australian Institute of Criminology estimates that employee theft costs Australian businesses over $1.5 billion annually. Petty cash is the easiest target because it is physical currency with minimal oversight. A $20 here, a $50 there. Most businesses never notice until audit time, and by then the trail is cold.
No Audit Trail
A handwritten logbook is not an audit trail. It is a record of what people claim they spent, not what actually happened. There is no verification, no timestamp beyond what someone writes down, and no way to cross-reference against actual purchases.
Cash Handling Time
Someone has to count the float. Someone has to go to the bank for change. Someone has to reconcile the logbook against what is actually in the tin. For a business with 50 staff, this easily consumes 3 to 5 hours per week of administrative time.
ATO Compliance Gaps
The ATO requires businesses to keep records of all business expenses, including petty cash transactions. Each transaction needs a receipt or record showing the date, amount, supplier, and nature of the goods or services. A scribbled logbook entry saying “office stuff $45” does not meet that standard. When the ATO audits, incomplete petty cash records create real problems.
Insurance Implications
If your office is broken into and the petty cash tin is taken, most business insurance policies cap cash claims at very low amounts. You are storing an uninsured asset in an unlocked drawer.
The Modern Alternative: Prepaid Corporate Cards
The petty cash alternative is straightforward. Instead of a shared tin of cash, each team member gets their own prepaid card with individual spending limits.
Every transaction is recorded automatically. Every receipt is captured at point of purchase through a mobile app. Every dollar is categorised and visible in real time.
No cash handling. No logbooks. No counting the float. No trips to the bank.
With corporate cards, you set a limit per person, per day, per week, or per month. A support worker gets $100 per week for client activities. An office manager gets $500 per month for supplies. A sales rep gets $200 per week for client entertainment. Each person spends within their limit and every transaction is tracked automatically.
Petty Cash vs Prepaid Cards: Side-by-Side
| Feature | Petty Cash | Prepaid Corporate Cards |
|---|---|---|
| Audit trail | Handwritten logbook | Automatic digital record of every transaction |
| Theft risk | High (physical cash, minimal oversight) | Near zero (individual cards, instant alerts) |
| Receipt capture | Paper receipts stuffed in envelopes | Photo capture at point of purchase |
| Reconciliation time | 3-5 hours per week | Automatic, real-time |
| ATO compliance | Gaps in records, manual effort | Complete records with digital receipts |
| Scalability | Breaks down past 20 staff | Works for 5 or 500 staff |
| Staff convenience | Need to find the tin, sign the book | Tap their card, snap the receipt |
| Spending visibility | End of month (if you’re lucky) | Real-time dashboard |
| Cash handling | Bank runs, counting, securing | None |
How to Replace Petty Cash in 7 Days
Eliminating petty cash does not require a six-month transformation project. Most businesses complete the switch in under a week.
Day 1-2: Audit Your Current Float
Count what is in the tin right now. Review the last three months of petty cash records. Identify who uses petty cash, what they buy, and how much they typically spend per week. This gives you the data to set card limits.
Day 3: Issue Cards to Your Team
Set up prepaid corporate cards for each team member who currently uses petty cash. Set individual spending limits based on your audit. A card for the office manager with a $500 monthly limit. Cards for support workers with $100 weekly limits. Cards for sales staff with appropriate entertainment budgets.
Day 4: Set Controls and Categories
Configure spending categories, merchant restrictions if needed, and approval workflows. Some businesses block ATM withdrawals. Others restrict certain merchant categories. Set the controls that match your business needs.
Day 5: Communicate the Change
Tell your team. The message is simple: “You’re getting your own card. No more asking for the float. No more logbooks. Tap your card, snap the receipt in the app, done.” Most staff prefer this immediately because it is faster and less awkward than the petty cash process.
Day 6-7: Close the Tin
Bank the remaining float. File the final petty cash reconciliation. Put the tin in the recycling. Your expense management system now handles everything the petty cash tin used to do, with complete visibility and zero cash handling.
Proof: Businesses That Eliminated Petty Cash
Sunnyday Carers: 15 Hours Per Week Saved
Sunnyday Carers operates over 40 group homes with 250+ staff across disability and aged care services. Their old system relied on petty cash floats at every location. Counting, reconciling, and managing cash across dozens of sites consumed over 15 hours of administrative time per week.
After replacing petty cash with individual prepaid cards, every transaction is tracked in real time. Support workers tap their card for client activities and snap the receipt. The finance team sees everything instantly. No more counting tins across 40 locations.
Connecting Families: $21,000 Saved Annually
Connecting Families replaced their petty cash system along with fuel cards and voucher programs. The combined savings hit $21,000 per year. Beyond the dollar figure, they eliminated the administrative burden of managing multiple systems. One card per person replaced three separate processes.
BB Disability: 10+ Hours Per Week Recovered
BB Disability was drowning in petty cash management and monthly invoicing across their disability services. Support workers needed cash for client outings, activities, and supplies. Managing that across multiple locations ate over 10 hours per week.
After switching to prepaid cards, those hours went back to the finance team. More importantly, they gained real-time visibility into spending across every location. No more waiting until month end to see where the money went.
Who Still Uses Petty Cash (and Why They Shouldn’t)
Three types of Australian businesses still run petty cash in 2026. Each has a specific blocker that feels valid but dissolves once the alternative is understood.
“Our staff buy small things that aren’t worth a corporate card”
This is the most common justification. A $12 milk run. A $7 parking meter. A $25 emergency supply purchase. These feel too small for a “corporate card”.
The reality: prepaid cards with $50/week limits handle these purchases without any additional overhead. The staff member taps to pay. The receipt is captured in the app. The transaction codes itself. The cost of the card ($10/month) is less than the time spent reconciling one week of petty cash transactions.
“We’ve always done it this way”
Petty cash has been standard practice in Australian businesses for decades. The process feels simple because it is familiar, not because it is efficient. Staff know the routine: take cash from the tin, write it in the logbook, bring back the change and receipt. What they don’t see is the hours their finance team spends reconciling missing amounts, chasing lost receipts, and counting the float.
The switch takes 7 days (see the guide above). The return is immediate: every transaction documented, every dollar tracked, every receipt captured at point of purchase.
“Some of our payments must be cash”
This is sometimes true. Markets, some tradies, parking meters without tap-and-pay. But review how much of your petty cash actually goes to cash-only merchants versus merchants that accept card. For most Australian SMEs in 2026, it is less than 5% of petty cash transactions. For that 5%, keep a small emergency float ($100-$200). For the other 95%, issue cards.
The ATO Perspective on Petty Cash Records
The ATO does not require you to use cash. It requires you to keep records.
For petty cash, that means:
- A petty cash book recording every transaction
- Receipts for every purchase (original or copy)
- Regular reconciliation of the float balance against the book
- The ability to demonstrate the business purpose of each purchase
For prepaid card transactions, the requirements are the same, but compliance is automatic. Every transaction has a digital record the moment it occurs. Every receipt is captured via the app. Every category is assigned. The reconciliation happens in real time rather than weekly or monthly.
If your business is currently managing petty cash with a notebook and a tin, you are carrying compliance risk every day between reconciliations. A missing receipt from three weeks ago is invisible until someone counts the float. A miscoded transaction sits undetected until the bookkeeper reviews the logbook. With card-based alternatives, these gaps close instantly because the system captures the data at the point of transaction.
For businesses in regulated industries like NDIS, childcare, and education, the compliance argument is even stronger. These industries face regular funding acquittals where every dollar must be substantiated. A digital transaction record with attached receipts and automatic categorisation makes acquittal preparation trivial. A tin of cash with a handwritten logbook makes it stressful.
Getting Started
The businesses above made the switch in days, not months. The process is the same regardless of your size:
Audit what your team currently spends petty cash on. List every category: milk and kitchen supplies, parking, postage, small office purchases, client meeting expenses, cleaning supplies. Calculate the monthly total. Most businesses discover their petty cash spend is 2x to 3x what they thought because the tin gets refilled without anyone tracking the total.
Decide who needs a card. Not every employee needs one. Start with the people who currently access the petty cash tin. In most businesses that is 5 to 15 people. Each person gets their own card with a weekly or monthly limit matching what they currently draw from petty cash.
Issue individual cards with appropriate limits. Virtual cards are issued instantly. Physical cards arrive in 3-5 days. Set limits conservatively at first (match current petty cash usage per person) and adjust once you see actual spending patterns.
Communicate the change. Tell staff: “You now have your own card for small purchases. Tap to pay instead of using the tin. Snap the receipt in the app when prompted. That’s it.” The workflow is simpler than petty cash because there is no logbook, no change to return, and no float to reconcile.
Close the tin. Return the float to the business account. Keep a small emergency fund ($100-$200) for the rare cash-only merchant. Everything else goes through cards from day one.
Review after 30 days. Check compliance rates (what percentage of transactions have receipts captured?). Adjust limits if anyone is consistently hitting their cap. Verify Xero sync is working correctly for all card transactions.
Every dollar tracked. Every receipt captured. Every transaction visible in real time. No more wondering what petty cash is really costing your business.
