Tax Deductions Every Small Business Should Claim

Why Deductions Matter

Every dollar of legitimate business expense you claim reduces your taxable income. If your tax rate is 30%, a $1,000 deduction saves you $300 in tax. Over a year, missed deductions can cost thousands.

The key word is "legitimate." You can only deduct expenses that are directly related to earning your business income. Personal expenses are never deductible, and trying to claim them is a fast track to an audit.

Universal Deductions (Most Countries)

These deductions are available in virtually every tax jurisdiction:

Office and Workspace

• Rent for your business premises
• Utilities (electricity, water, gas, internet) for business premises
• Home office expenses if you work from home (calculated differently by country)
• Office furniture and equipment
• Office supplies (stationery, printer ink, paper)

Technology and Software

• Computers and devices used for business
• Software subscriptions (accounting software, project management, CRM)
• Cloud hosting and domain registration
• Phone plans (business use portion)
• Website development and maintenance

Professional Services

• Accountant and bookkeeper fees
• Legal fees for business matters
• Business consulting fees
• Insurance premiums (professional indemnity, public liability, business insurance)

Marketing and Advertising

• Online advertising (Google Ads, Facebook Ads, LinkedIn)
• Business cards and printed materials
• Website costs and SEO services
• Social media management tools
• Sponsorships with a clear business purpose

Travel and Transport

• Business travel (flights, accommodation, meals while travelling)
• Vehicle expenses for business use (fuel, maintenance, registration - business portion only)
• Parking for business purposes
• Public transport for business travel

Staff Costs

• Wages and salaries for employees
• Contractor payments for outsourced work
• Superannuation/pension contributions for employees
• Staff training and professional development
• Workers compensation insurance

Country-Specific Deductions

Australia

• Instant asset write-off: Assets costing up to $20,000 can be immediately deducted (check current thresholds as they change regularly)
• Home office: Claim 67 cents per hour worked from home, or calculate actual expenses
• Motor vehicle: Choose between cents-per-kilometre method (85 cents/km, max 5,000 km) or logbook method
• Superannuation: Mandatory 11.5% for employees is deductible

United Kingdom

• Annual Investment Allowance: 100% deduction on qualifying plant and machinery up to GBP 1 million
• Home office: Simplified method of GBP 6/week, or calculated actual costs
• Mileage: 45p per mile for first 10,000 miles, 25p per mile thereafter
• Pension contributions: Employer contributions are deductible business expenses

United States

• Section 179 deduction: Immediate expensing of qualifying business equipment
• Home office deduction: Simplified method at $5 per square foot (max 300 sq ft) or actual expenses
• Self-employment tax deduction: Deduct half of self-employment tax
• Health insurance premiums: Self-employed can deduct health insurance costs
• Qualified Business Income (QBI) deduction: Up to 20% of qualified business income

New Zealand

• Depreciation: Claim depreciation on business assets using IRD-approved rates
• Home office: Proportional claim based on floor area and time used for business
• Motor vehicle: Actual costs or IRD mileage rate

Canada

• Capital Cost Allowance (CCA): Depreciation on business assets at prescribed rates
• Home office: Proportional claim based on area and business use
• Vehicle expenses: Actual costs proportional to business use, or per-kilometre rate

Commonly Missed Deductions

Bank fees and interest on business accounts and business loans are deductible. Many business owners forget to claim these.

Professional memberships and industry subscriptions. If you pay for membership in a professional body or subscribe to industry publications, these are deductible.

Bad debts that you have genuinely written off. If a customer does not pay and you have made reasonable attempts to collect, you can claim the loss.

Depreciation on assets you already own. If you brought personal assets into business use, you can claim depreciation from that date.

Training and education directly related to your current business. Courses, workshops, books, and conferences that improve your business skills are deductible.

How to Maximise Your Deductions

Track Everything

The biggest reason businesses miss deductions is poor record-keeping. Every business expense should be recorded, categorised, and supported by documentation.

Use the Right Categories

Lumping everything into "miscellaneous expenses" means you will miss specific deductions. Use a proper chart of accounts with categories that match your country's tax requirements.

Keep Receipts

Digital receipts are accepted in most countries. Photograph paper receipts and store them digitally. SortBooks and Xero both support receipt capture and attachment to transactions.

Separate Personal and Business

Use separate bank accounts and credit cards for business and personal expenses. This makes tracking deductions dramatically easier and reduces audit risk.

Review Quarterly

Do not wait until year-end to review your expenses. Quarterly reviews catch missed deductions early and keep your records clean throughout the year.

Work With a Professional

A good accountant pays for themselves through the deductions they identify that you would miss. Their fee is also deductible.