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Top 5 Self Assessment Tax Return Expenses You Could Claim

Published By Aayush Niraula
Published Date: January 21, 2025

( Last Updated: January 21, 2025 )

When you file your Self-Assessment Tax Return, you may be able to reduce your taxable income by claiming various allowable expenses. This can result in a lower tax bill, which is especially helpful for freelancers, sole traders, or anyone running their own business. Understanding which expenses are deductible is essential to ensure you're not paying more tax than necessary. In this article, we’ll discuss the top five Self-Assessment tax return expenses that could help you reduce your tax liability.

Business Expense

Business expenses are costs incurred by a business that are necessary for its operation and can be deducted from taxable income. To be eligible, the expenses must be "wholly and exclusively" for business purposes.

Some of the common types of business expenses arising are:

Office Expenses

Office expenses are a key category of allowable costs that self-employed individuals can claim. These expenses cover a wide range of costs associated with rent of the office maintaining an office, whether it’s a dedicated business space or a home office. Common office expenses include office supplies like stationery, printer ink, and postage, as well as any equipment used for business purposes, such as computers, printers, and furniture. It’s essential to keep detailed records and receipts for all office-related expenses to ensure they are valid for tax purposes and to substantiate your claims in case of an HMRC review.


Travel and Transport

Travel and transport expenses are allowable if they are incurred as part of your business activities. This includes costs associated with using your vehicle for business purposes, such as fuel, maintenance, repairs, and insurance. You can either claim the actual costs of running your vehicle or use the HMRC-approved mileage rates, which are 45p per mile for the first 10,000 miles and 25p per mile thereafter.

Travel and Transport

In addition to vehicle expenses, other travel-related costs like public transportation, taxis, and parking fees for business-related travel can also be claimed. It’s important to differentiate between personal and business travel; only the expenses directly related to business use are deductible. Keeping accurate records of business trips, including mileage logs and receipts, is crucial to ensure compliance with HMRC rules and to support your claims during a tax review.


Staff Costs

Staff costs refer to the expenses a business has when hiring employees, which include their wages, National Insurance contributions, pensions, holiday pay, sick pay, and any other benefits provided. Employers must also report these costs to HMRC through the PAYE system, ensuring that the right amount of tax and National Insurance is deducted from employees' salaries.


Other Business Expenses

There are various other business expenses that can be claimed to reduce your taxable income. One such category is marketing and advertising, which includes the costs of online and offline advertisements, and promotional materials like business cards and brochures. Businesses can also claim the cost of purchasing stock or raw materials for resale, legal accounting and financial fees associated with business, as well as the storage or handling of inventory.

Furthermore, businesses can claim depreciation on assets, such as equipment, machinery, or vehicles, through capital allowances. Training and development expenses, such as the cost of relevant courses, workshops, and industry-related books or resources, can also be deducted, helping to maintain and improve skills within the business.

Property Expense

Self-assessment property expenses include costs related to owning, renting, or maintaining a property used for business or rental purposes. Common expenses you can claim include mortgage interest (not principal repayments and only in case of non-residential property), repairs and maintenance, property management fees, insurance, council tax (if paid by the owner), utilities, legal and professional fees, advertising costs, travel and mileage, and capital allowances for equipment. Additionally, letting agent fees, cleaning, gardening, ground rent, and service charges can be deducted. Major capital improvements generally can't be claimed, but like-for-like replacements can be. These expenses help reduce taxable income from rental or business properties, provided you keep accurate records and receipts.

Subscription Expense

Subscription to any professional bodies that directly feed into your job can be claimed as self-assessment expenses. Permitted expenses include a subscription to any trade, professional or academic journals. Likewise, a subscription or annual membership of a professional organisation or a union will also apply as a permitted expense.

However, subscription expenses to a gym membership or glossy magazine and payments made to a political party isn’t deductible.

Legal and Financial Costs

When calculating and submitting your self-assessment tax return you might have been associated with hiring an accountant, solicitor, surveyor, architect, or any other professional for your help. The cost associated with this activity can be claimed and are allowable. However, only certain portion of this can be claimed relating to business and property income. If an individual only has employment income, then these costs cannot be claimed.

Likewise, any cost relating to insurances and range of other banks are also allowable.

Legal and Financial Costs - self assessment tax return

If you use cash basis accounting, be aware that you can only claim up to £500 in interest and bank charges on your Self-Assessment form.

If you use accrual (traditional) accounting, you can’t claim legal costs related to buying property or machinery. However, you can claim capital allowances instead in the property’s contents, including furniture, appliances, and fixtures.

Flat Rate Simplified Expense

The flat rate simplified expense is a method that self-employed individuals can use to claim business expenses without needing to keep detailed records for every small cost. Instead of tracking actual costs for things like utilities or office supplies, you can claim a fixed amount based on the number of hours you work from home or the size of your business.

Example

If you work from home, you can claim a set amount for your home office costs (like electricity and heating) without having to track exact usage.

This method makes tax filing easier by reducing the need for complicated record-keeping. However, it may not always result in the best claim if your actual expenses are higher than the flat-rate allowances. So, you should be sure to choose the method that suits your business situation.

Conclusion

Claiming the correct business expenses on your self-assessment tax return can significantly reduce your taxable income and lower the amount of tax you owe. By ensuring you claim for business-related operating costs, travel, home office expenses, professional fees, and training, you can optimise your tax position. It is crucial to keep accurate records and receipts to support your claims, as HMRC may require proof of your expenses in the event of an audit.

If you are uncertain about which expenses you can claim or if your situation is more complex, consulting a qualified accountant or tax professional can help ensure you comply with all tax regulations while maximising your deductions. By staying organised and informed, you can reduce your tax liability and keep more of your earnings for your business.

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Aayush Niraula
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