Leave Tracking: Spreadsheet vs Software — Which Should You Use in 2026?
Most businesses start tracking leave in a spreadsheet. Some never leave. Here is an honest comparison of spreadsheets versus dedicated leave tracking software — and how to know when it is time to switch.
The Spreadsheet Starting Point
Nearly every business starts tracking employee leave in a spreadsheet. It makes sense: you already have Excel or Google Sheets, someone builds a basic template with columns for employee names, dates, and leave types, and it works. For a team of three or four people, a spreadsheet can be perfectly adequate.
The problems do not appear immediately. They creep in as the team grows, as leave policies become more complex, and as the person who built the spreadsheet moves on and nobody quite understands the formulas any more.
This article gives you an honest assessment of both approaches — where spreadsheets work, where they break down, and how to decide if dedicated leave management software is worth the investment for your business.
Spreadsheets: The Pros
Let us give spreadsheets their due. There are genuine reasons they remain popular:
Advantages of Spreadsheets
- Zero additional cost — you already pay for Office 365 or Google Workspace
- Familiar interface — most employees can use a spreadsheet without training
- Fully customisable — you can structure it however you like
- Quick to set up — a basic leave tracker can be built in under an hour
- No vendor dependency — your data is in your own files
Spreadsheets: The Cons
Now the other side. These are the issues that typically push businesses towards dedicated software:
Disadvantages of Spreadsheets
- Human error — a mistyped date, a deleted formula, or a row entered on the wrong sheet can silently corrupt your data. Studies suggest spreadsheets contain errors in up to 88% of cases.
- No approval workflow — leave requests happen via email or chat, and someone manually updates the sheet. Requests get lost.
- No conflict detection — the spreadsheet cannot warn you that three people on the same team have booked the same week off
- Version control nightmares — when multiple people edit the same file, you end up with conflicting versions and overwritten data
- Pro-rata calculations are hard — calculating entitlement for part-time staff, mid-year starters, or different working patterns requires complex formulas that are easy to get wrong
- No self-service — employees cannot check their own balance without asking someone or accessing a shared file
- Time-consuming to maintain — the hidden cost of spreadsheets is the management time spent updating, checking, and fixing them
Feature Comparison: Spreadsheet vs Software
Here is a direct comparison of what you get with each approach:
| Feature | Spreadsheet | Dedicated Software |
|---|---|---|
| Leave request & approval | Manual (email/chat + manual entry) | Built-in workflow with notifications |
| Balance calculation | Formulas (error-prone) | Automatic and always current |
| Pro-rata for part-time staff | Complex formulas needed | Calculated automatically |
| Team calendar view | Requires separate setup | Built-in |
| Custom leave types | Possible but increases complexity | Standard feature |
| UK statutory entitlement | Must calculate manually | Handled automatically |
| Employee self-service | Limited (shared file access) | Full self-service portal and mobile app |
| Clash detection | Not available | Automatic warnings |
| Payroll export | Manual data transfer | Direct export (e.g. Xero, QuickBooks, CSV) |
| Audit trail | None (or limited version history) | Full audit trail of all changes |
The Cost Comparison
The most common argument for spreadsheets is cost: “Why pay for software when we already have Excel?” It is a fair question, but it misses the hidden costs.
Spreadsheet Costs (Hidden)
- Management time: If an HR manager or office administrator spends 2 hours per week maintaining the leave spreadsheet, that is over 100 hours per year. At even a modest hourly cost, that is thousands of pounds in labour.
- Error correction: When mistakes happen — and they will — someone has to find and fix them. A miscalculated balance that leads to someone being overpaid leave costs real money.
- Compliance risk: If your spreadsheet gives someone the wrong entitlement and you underpay statutory leave, you face potential legal costs that dwarf any software subscription.
Software Costs (Transparent)
Dedicated leave tracking software typically charges per employee per month. TimeTally, for example, costs £2 per employee per month — so a 20-person team costs £40 per month, or £480 per year. For that, you get automated calculations, approval workflows, a team calendar, custom leave types, pro-rata support, UK statutory entitlement calculations, and export to Xero, QuickBooks, or CSV.
Compare £480 per year to 100+ hours of management time, and the economics become clear for most businesses once they reach around 10–15 employees.
The Error Risk
This deserves its own section because it is the single biggest problem with spreadsheet-based leave tracking.
Research from the University of Hawaii found that 88% of spreadsheets contain at least one error. When it comes to leave tracking, common errors include:
- Counting weekends or bank holidays as leave days
- Failing to adjust entitlements for part-time employees correctly
- Not accounting for mid-year starters or leavers (pro-rata)
- Overwriting someone else's data in a shared file
- Formula references breaking when rows are inserted or deleted
- Carry-over calculations going wrong at year end
Each of these errors is small in isolation. But over a year, across a team, they compound — and they are almost always discovered at the worst possible time, like when someone realises in December that they have fewer days left than they thought.
When to Switch: The Tipping Points
There is no magic number, but in practice, most businesses reach the tipping point when one or more of the following become true:
Team size exceeds 10–15 people
The complexity of tracking leave for this many people — with different start dates, working patterns, and leave types — outgrows what a spreadsheet can handle reliably.
You have part-time staff or varied working patterns
Pro-rata calculations in spreadsheets are a minefield. Dedicated software handles them automatically.
Managers are spending significant time on leave admin
If leave management takes more than a few minutes per week, the spreadsheet is costing you more than software would.
You have had errors or disputes
If an employee has ever been told they have more or fewer days than they actually do, your spreadsheet is a liability.
You need payroll integration
Manually transferring leave data to payroll is slow and error-prone. Software with Xero, QuickBooks, or CSV export eliminates this step.
Making the Switch
If you have decided to move from a spreadsheet to dedicated software, the transition is typically straightforward. Most leave management tools for small businesses can be set up in under an hour. The key steps are:
- Export your current leave balances from the spreadsheet
- Set up employee profiles with correct start dates and working patterns
- Configure your leave types (annual leave, sick leave, and any custom types you use)
- Import current balances or let the system calculate from start date
- Invite employees so they can start submitting requests through the new system
TimeTally offers a free leave tracker to get started, and the full platform at £2 per employee per month includes everything from custom leave types and approval workflows to pro-rata calculations and an iOS app for on-the-go requests. See how it compares directly on our TimeTally vs Excel page.
Summary
Spreadsheets are a reasonable starting point for leave tracking, and for very small teams with simple needs, they can work indefinitely. But for most growing businesses, the hidden costs — in management time, errors, compliance risk, and employee frustration — eventually outweigh the apparent savings.
Key takeaways:
- Spreadsheets work for very small, simple teams but break down as complexity grows
- The real cost of spreadsheets is hidden in management time and error correction
- Dedicated software automates calculations, approvals, and compliance
- The tipping point is usually around 10–15 employees, or when you have varied working patterns
- At £2 per employee per month, dedicated software is often cheaper than the spreadsheet it replaces
Related resources: