Incidental expenses: definition, examples and tax tips

Published Monday 20 April 2026

Table of contents

• Definition of incidental expenses
• Types of incidental expenses
• Tax implications of incidental expenses
• How businesses handle incidental expenses
• Take control of your business expenses
• FAQs on incidental expenses

Key takeaways

• Recognize that incidental expenses — such as tips, parking fees, and meeting snacks — are minor, unplanned costs that add up quickly, so treat them as seriously as major expenses to protect your cash flow.
• Claim eligible incidental expenses as tax deductions by keeping receipts for every business cost, since the CRA requires proof and applies specific rules — for example, meals and entertainment are only 50% deductible in most cases.
• Set clear expense policies and daily allowances for your team to control incidental spending, and use expense tracking software to automate categorization and spot patterns before they become budget problems.
• Review two to three months of past spending to set a realistic monthly or quarterly budget for incidentals, then adjust it regularly as your business activities change.

Definition of incidental expenses

Incidental expenses are minor, unplanned costs that support your business operations but fall outside your main budget. These expenses aren't directly tied to your core business activities, yet they're necessary for day-to-day operations to run smoothly.

Incidental expenses share these key characteristics:

• appear in small amounts: typically minor costs that seem insignificant on their own
• arise unexpectedly: often pop up without warning during normal business operations
• play a supporting role: keep operations running smoothly without being core activities
• require out-of-pocket payment: usually paid by employees first, then reimbursed later

Incidental expenses can differ depending on your business and industry. For example, buying stamps may be a small cost for most businesses, but a major expense for companies that send large volumes of mail.

Travel-heavy businesses typically see the highest incidental costs, with some industries having specific tax considerations when employees are away for at least 24 continuous hours as defined by the CRA. For example, food and beverage expenses for a long-haul truck driver during an eligible travel period are deductible at 80% according to CRA rules, which is higher than the standard 50% for meals. Employees pay upfront with company cards or personal funds, then submit expense reports for reimbursement of these supporting costs.

Types of incidental expenses

Most businesses encounter incidental expenses in three main categories:

• business travel extras: tips for hotel staff, taxi fares, toll fees, and parking charges that supplement main travel costs like flights and accommodation
• workplace celebrations: employee birthday parties, customer gift wrapping, greeting cards, and flowers that enhance relationship building
• team operations: meeting snacks, staff recognition awards, and small office supplies that support day-to-day management

Tax implications of incidental expenses

Yes, many incidental expenses are tax deductible in Canada if they're reasonable and help you earn business income. The Canada Revenue Agency (CRA) sets specific rules depending on the expense type.

For example, you can deduct up to six staff parties per year if all employees at a location are invited, as the CRA limits these to six such events per year. Tips during business meals or travel count as meal and entertainment expenses, but you can only claim 50% of these costs.

How businesses handle incidental expenses

Tracking incidental expenses prevents budget leaks that can quietly drain your cash flow. While each cost seems small on its own, they add up fast. Smart businesses treat these minor costs as seriously as major expenses.

Tracking your incidental expenses helps you:

• spot spending patterns and cut unnecessary costs to protect cash flow
• monitor for unusual activity and prevent fraud
• control discretionary spending and stay flexible during tight periods

Advantages of managing your business incidental expenses

Managing incidental expenses delivers measurable benefits for your business:

• reduce costs: identify and eliminate unnecessary spending before it becomes a pattern
• improve forecasting: track expense patterns to create more accurate budgets
• make better decisions: gain clear insights into where your money actually goes
• strengthen cash flow: control small costs that otherwise drain your operating funds
• build credibility: demonstrate financial discipline to attract investors and lenders

Tips for managing your small business incidental expenses

Effective management starts with clear policies and consistent tracking:

• set clear expense policies: define which costs your business will reimburse and require pre-approval for amounts over a set threshold
• use per diem rates: set daily allowances (such as $75 for meals and tips) to control travel costs while giving employees flexibility
• budget regularly: allocate monthly or quarterly amounts for incidentals to maintain financial control
• track consistently: monitor all small expenses and adjust policies as your business grows
• train your team: ensure employees understand policies, submission deadlines, and reimbursement processes
• review and adapt: update policies regularly and use expense patterns to inform pricing decisions
• use expense software: automate tracking and categorization to spot patterns and cut costs

Take control of your business expenses

Clear policies and the right tools make managing incidental expenses straightforward. You can turn small costs into useful financial data, protect your cash flow, and make better decisions for your business.

Xero accounting software with expense management features makes tracking simple. Your team can capture receipts on the go, automate approvals, and see spending in real time. Get one month free and see how Xero can help you stay on top of your expenses.

FAQs on incidental expenses

Common questions about incidental expenses.

Are incidental expenses tax deductible?

Yes, many incidental expenses are tax deductible in Canada if they're reasonable and help you earn business income. For example, self-employed foot and bicycle couriers can claim a daily flat rate of $23 for extra food and beverages they must consume during a normal working day, as outlined in the CRA meal expense guidelines.

Keep detailed records and receipts for all claims. Some items like meals and entertainment have special rules, so check with a tax professional if you're unsure.

What's the difference between incidental and discretionary expenses?

Incidental expenses are minor, necessary costs that arise from a primary business activity, such as a tip during a business trip.

Discretionary expenses are non-essential, optional costs that a business can choose to cut, such as holiday parties or premium office furniture.

How much should I budget for incidental expenses?

Start by reviewing your past spending for two to three months to find an average. Use that figure to set a monthly or quarterly budget, then adjust as your business needs change. The right amount varies by business type and activities.

Do I need receipts for all incidental expenses?

Yes, keep a receipt for every business expense, even the smallest ones. The CRA requires proof for expense claims, and receipts are the best documentation.

An expense tracking app makes this easy. Snap a photo of each receipt and store it digitally to keep everything organized.