How to track and manage business expenses

Published Tuesday 15 September 2026

Table of contents

• What is expense tracking and why does it matter?
• Types of business expenses to track
• How to track business expenses in 7 steps
• Expense tracking methods compared
• How to create a business expense policy
• Common expense tracking mistakes to avoid
• Simplify your expense tracking with Xero
• FAQs on tracking business expenses

Key takeaways

• Tracking expenses consistently helps you claim all eligible tax deductions, maintain accurate cash flow forecasts, and stay compliant with SARS requirements.
• Separating business and personal finances with a dedicated bank account is the foundation of reliable expense tracking.
• Recording expenses as they happen and reconciling them regularly prevents errors from piling up and gives you a clear picture of where your money goes.
• A written expense policy helps your team follow consistent processes, which becomes critical as your business grows beyond 20 employees.

What is expense tracking and why does it matter?

Expense tracking is the process of recording, categorising, and monitoring every rand your business spends. It covers everything from rent and salaries to office supplies and client entertainment.

For a growing business, accurate expense tracking isn't just good practice. It directly affects your bottom line. When you know exactly where your money goes, you can spot unnecessary costs, make smarter budget decisions, and forecast cash flow with confidence.

There's also a compliance angle. The South African Revenue Service (SARS) requires businesses to keep records for at least five years from the date of a return submission. Companies registered under the Companies Act must retain records for seven years. Falling short on documentation can mean missed deductions, penalties, or audit complications.

Poor expense tracking costs businesses real money. Without a clear system, you're likely to overlook deductible expenses at tax time, lose receipts that support legitimate claims, or discover cash flow shortfalls too late to act on them. The bigger your team and the more transactions you process, the higher the stakes.

Types of business expenses to track

Not all business expenses behave the same way. Understanding the different types helps you categorise them correctly and plan your budget more effectively.

Fixed expenses

Fixed expenses stay roughly the same each month. They're predictable, which makes them easier to budget for, but they also represent committed costs that are harder to reduce quickly.

Common fixed expenses include:

• office or warehouse rent: your monthly lease payment for business premises
• insurance premiums: business, vehicle, or professional indemnity cover
• salaries and wages: regular payroll costs for permanent staff
• loan repayments: fixed monthly instalments on business finance
• software subscriptions: accounting, payroll, or project management tools billed monthly or annually

Variable expenses

Variable expenses fluctuate based on business activity. They're harder to predict but often easier to control in the short term.

Common variable expenses include:

• raw materials and stock: costs tied directly to what you sell or produce
• utilities: electricity, water, and data costs that vary with usage
• marketing and advertising: campaign spend that scales up or down
• travel and accommodation: trips for client meetings, conferences, or site visits
• freelancer or contractor fees: project-based costs outside your permanent payroll.

Common deductible business expenses

SARS allows you to deduct expenses that are incurred in the production of income. Keeping accurate records of these expenses can significantly reduce your tax liability.

Deductible expenses can fall into either the fixed or variable categories, and they include:

• operating costs: rent, utilities, and office supplies used in daily operations
• employee costs: salaries, bonuses, and contributions to retirement funds or medical aid
• vehicle expenses: fuel, maintenance, and insurance for vehicles used for business purposes, supported by a logbook
• professional fees: payments to accountants, lawyers, and consultants
• bad debts: amounts owed to you that have become irrecoverable, that you've already reported in your income
• small assets: items costing less than R7,000 (excluding value-added tax (VAT) for VAT vendors) may qualify for a full write-off in the year they're first used, subject to SARS conditions.

You can also claim wear and tear allowance for machinery, manufacturing equipment, and other movable assets – that lets you deduct their cost over time. Although you can't claim a depreciation expense for buildings, you should still track the numbers so you can calculate and claim an annual allowance.

How to track business expenses in 7 steps

These seven steps cover the best practices for setting up and maintaining reliable expense tracking in your business.

1. Open a dedicated business bank account

Mixing personal and business transactions is one of the fastest ways to lose visibility over your expenses. A dedicated business bank account creates a clear boundary between the two.

With a separate account, every transaction on your statement relates to the business. That makes reconciliation faster, tax preparation simpler, and audits far less stressful. Most South African banks offer business accounts with features like multiple signatories and detailed transaction reporting.

If you use a business credit card for day-to-day purchases, link it to the same account. This keeps all your spending in one place and reduces the chance of missing transactions.

2. Choose an expense tracking method

Your tracking method should match your business's size and complexity. A sole trader with a handful of monthly transactions has different needs from a business processing hundreds of expenses across multiple departments.

The main options are pen and paper, spreadsheets, and accounting software. Each has trade-offs around cost, accuracy, and scalability. For a business with more than a few employees, manual methods tend to break down quickly. You'll find a detailed comparison of each method later in this article.

Whatever method you choose, the key is consistency. Pick one system and make sure everyone on your team uses it the same way.

3. Set up expense categories

Categories give structure to your expense data. Without them, you're left with a long list of transactions that's difficult to analyse or report on.

Start with broad categories that align with your tax return and financial statements: operating expenses, payroll, travel, marketing, and professional fees. Then add subcategories where it helps. For example, "travel" might break down into flights, accommodation, and meals.

Keep your category list manageable. Too many categories create confusion and inconsistency, especially when multiple people are logging expenses. Aim for somewhere between 10 and 20 categories to start, and refine as you learn what works.

4. Capture and store receipts digitally

Paper receipts fade, get lost, and take up space. Digital capture solves all three problems and makes it far easier to match receipts to bank transactions later.

Use your phone to photograph receipts as soon as you receive them. Many apps can extract key details like the vendor, date, and amount automatically. Store everything in the cloud so it's accessible from anywhere and backed up securely.

For a business with staff submitting expense claims, set a clear expectation: receipts must be captured and uploaded within 48 hours of the purchase. This prevents the end-of-month scramble that comes from missing documentation.

5. Record expenses as they happen

The longer you wait to record an expense, the more likely you are to overlook details, misclassify it, or forget it entirely. Real-time recording is one of the simplest ways to improve accuracy.

Make it part of your daily routine. When a purchase happens, log it immediately, attach the receipt, and assign it to the right category. If your team members make purchases, give them a straightforward process for submitting expenses on the spot.

For recurring expenses like subscriptions or rent, set up automatic entries so they're captured without manual effort each month. Accurate, timely records make bookkeeping far more straightforward at month-end, and allow your software to generate financial reports based on real-time data.

6. Reconcile expenses regularly

Reconciliation means comparing your recorded expenses against your bank statements to make sure everything matches. It catches duplicates, missing entries, and incorrect amounts before they snowball.

For a business handling a high volume of transactions, weekly reconciliation is ideal. At a minimum, reconcile monthly. The process is straightforward: review each bank transaction, confirm it's been recorded and categorised correctly, match the transaction with other records, and investigate any discrepancies.

Regular reconciliation also gives you an up-to-date view of your cash position. You'll know exactly how much you've spent, what's still outstanding, and whether your actual spending aligns with your budget.

7. Review and optimise spending

Tracking expenses isn't just about record-keeping. It's a tool for making better financial decisions. Schedule a monthly or quarterly review to look at your spending patterns and identify opportunities to cut costs or reallocate budget.

During your review, ask questions like: which categories have increased significantly? Are there subscriptions or services you're no longer using? Could you negotiate better terms with any suppliers?

For larger businesses, compare spending across departments or projects. This helps you understand where your money delivers the most value and where it doesn't. Over time, these reviews compound into meaningful savings.

Expense tracking methods compared

Choosing the right method depends on your transaction volume, team size, and tolerance for manual work. Here's how the main options stack up.

Pen and paper

Writing expenses in a ledger or notebook is the most basic method. It works for very small operations with only a few transactions per week, but it doesn't scale.

There's no automated backup, no easy way to search or filter, and a high risk of errors. If your business has employees submitting expenses, paper-based tracking will be completely unmanageable. For most growing businesses, this method creates more problems than it solves.

Spreadsheets

Spreadsheets offer more reliability and flexibility than pen and paper. You can create formulas for totals, sort by category, and share files with your team. Many businesses start here because the tools are familiar and the cost is minimal.

The downsides show up as your business grows. Spreadsheets rely on manual data entry, which means errors creep in. There's no automatic connection to your bank account, so reconciliation is a separate task. Version control can also become a headache when multiple people edit the same file.

Accounting software

Cloud-based accounting software automates much of the expense tracking process. Bank feeds pull transactions in automatically, categorisation rules reduce manual work, and reconciliation happens in real time.

For a business with more than 10 employees and a high transaction volume, software is typically the most efficient option. It also makes collaboration easier: your accountant or bookkeeper can access the data remotely without you sending files back and forth.

The trade-off is cost. Most accounting platforms charge a monthly subscription, though the time savings usually outweigh the expense within the first few months.

Mobile apps

Many accounting platforms include mobile apps that let you capture receipts, log expenses, and approve claims from your phone. Some standalone expense apps also integrate with broader accounting systems.

Mobile apps are particularly useful for teams with employees who travel or make purchases in the field. They remove the delay between spending money and recording it, which improves accuracy and reduces administrative follow-up.

If your business tracks expenses by project or client, look for an app that supports project-level tracking. This lets you see exactly how much each project costs without running separate reports.

How to create a business expense policy

An expense policy sets the rules for how your team spends company money and reports those expenses. Without one, you're relying on individual judgement, which leads to inconsistency and disputes.

A clear policy should cover the following areas:

• What's reimbursable: Define which types of expenses the business will cover, such as travel, meals, accommodation, and office supplies. Be specific about limits, for example, a daily meal allowance or a cap on accommodation costs.
• Approval process: Outline who needs to approve expenses before or after they're incurred. For smaller purchases, a manager's sign-off might be enough. For larger amounts, require director-level approval.
• Submission requirements: Specify how employees should submit expenses, what documentation they need to provide (receipts, invoices, mileage logs), and the deadline for submissions. A 48-hour window after a purchase is a practical standard.
• Payment timelines: Tell employees when they can expect reimbursement. Prompt repayment builds trust and encourages compliance with the policy.
• Consequences for non-compliance: Explain what happens when someone submits expenses outside the policy, whether that's a delayed reimbursement, a conversation with their manager, or a formal process for repeat issues.

Once you've drafted the policy, share it with your entire team and make it easy to find. Include it in your onboarding materials and review it at least once a year to make sure it still reflects how your business operates.

For businesses with more than 20 employees, enforcement matters as much as the policy itself. Consider assigning an expense administrator who reviews submissions and flags anything that falls outside the guidelines.

Common expense tracking mistakes to avoid

Even with a good system in place, these six mistakes can undermine your expense management.

• Mixing personal and business expenses: When you use one account for everything, it's difficult to separate deductible business expenses from personal spending. This complicates tax preparation and increases audit risk.
• Waiting too long to record expenses: Delaying data entry leads to forgotten transactions, lost receipts, and inaccurate records. The longer you wait, the harder it is to reconstruct what happened.
• Skipping reconciliation: Without regular reconciliation, errors and duplicates go undetected. Monthly reconciliation is the minimum; weekly is better for high-volume businesses.
• Using vague or inconsistent categories: If "miscellaneous" is one of your biggest expense categories, your tracking isn't giving you useful information. Use specific, standardised categories and train your team to apply them consistently.
• Not keeping digital copies of receipts: Paper receipts fade and get lost. SARS expects you to produce supporting documentation on request, and "I can't find it" isn't an acceptable answer. Digitise receipts immediately.
• Ignoring expense data in decision-making: Tracking expenses without reviewing the data is a missed opportunity. Use your expense records to negotiate better supplier terms, cut unnecessary costs, and improve your financial planning.

Simplify your expense tracking with Xero

Managing expenses across a growing team doesn't have to mean more manual work. Xero brings your bank transactions, receipts, and expense claims into one place – that helps you track spending in real time and reduces the need for chasing paper or switching between systems.

With automated bank feeds, transactions flow into your accounts daily, ready to be categorised and reconciled. Hubdoc pulls bills and receipts into Xero automatically, giving you paperless record-keeping and secure cloud storage. Your team can submit expense claims from their phones, and you can approve or query them from anywhere.

For businesses managing multiple projects or departments, Xero lets you tag expenses by project or client so you can see exactly where your money goes. Customisable reports give you a clear view of spending patterns, helping you make confident budget decisions.

Ready to take control of your business expenses? Get one month free and see how Xero can save your team time on expense tracking.

FAQs on tracking business expenses

Here are answers to common questions about managing and tracking business expenses.

Do you need receipts for expenses under R75?

SARS doesn't set a specific R75 threshold for receipt requirements. Keep supporting documentation for all business expenses you plan to claim as deductions, since SARS can request proof to back up all expenses during an assessment or audit.

Can you write off 100% of a business expense?

You can deduct expenses in full if they were incurred entirely in the production of income, but with larger purchases, you typically only deduct a portion of their value over time, rather than the full price in the year of purchase. Mixed-use expenses, like a vehicle used for both business and personal purposes, must be apportioned based on actual business use.

How should you track employee expenses?

Set up a standardised submission form that captures the date, amount, category, and receipt for every transaction, and make sure employees know how to use it, when to submit it, and any other requirements. Routing approvals through a single digital system reduces back-and-forth and gives you a clear audit trail across departments.

What's the simplest way to track business expenses?

Start by photographing every receipt on the day you make a purchase and saving it to a single folder. Building that one habit first makes the transition to automated software much smoother. When you're ready, you can easily record expenses using an app in the same way – just take a photo of the receipt and let the software do the rest.

How long should you keep business expense records in South Africa?

SARS requires five years from the date of return submission, while the Companies Act extends the period to seven years for registered companies. Keep invoices, bank statements, payroll records, and VAT documentation in secure cloud storage, since SARS can request records from any year within that window.