When you run a business, tax advice can come from all directions. A fellow business owner mentions something at a networking event, a social media post makes a bold claim, or someone tells you what “their accountant said”. Sometimes that advice is helpful. Sometimes it is wrong.
Tax myths can be surprisingly costly. Believing the wrong information can mean missed tax-saving opportunities, unexpected bills, poor record keeping or avoidable compliance problems.
As local accountants working with small businesses every day, we hear the same misconceptions come up time and again. Here are the most common tax myths we come across and the reality behind them.

- If it’s for my business, it’s automatically tax deductible.
Not necessarily. For a cost to be allowable, it generally needs to be incurred wholly and exclusively for business purposes. If there is a personal element, only the business proportion may be claimable or it may not be allowable at all.
- I don’t need to keep receipts because everything is digital now.
Digital records are absolutely fine, but you still need evidence to support your claims. That might be a scanned receipt, a digital invoice or an email confirmation. Good record keeping is still essential, whether your paperwork is in a filing cabinet or in cloud accounting software such as Xero.
- If my business made a loss, I don’t need to file a tax return.
Making a loss does not remove your filing obligations. If you are required to file a tax return or submit company accounts, those obligations still apply whether your business made a profit or a loss. Missing deadlines can still lead to penalties.
- HMRC won’t notice small mistakes.
HMRC receives information from multiple sources, including payroll submissions, VAT returns, banks and other reporting systems. Even genuine mistakes can lead to problems if they are not corrected, so it’s always worth ensuring your tax information is right from the outset.
- I can claim every meal as a business expense.
This is a very common myth. Your usual lunch while you are at work is not generally an allowable expense. However, meals during qualifying business travel or in certain business-related situations may be claimable.
- A limited company always pays less tax than being self-employed.
There is no one-size-fits-all answer here. The right structure depends on your profits, long-term plans, how you take money from the business, pension contributions, administrative costs and other factors. What works well for one business owner may not be the best option for another. Reviewing your business structure for tax efficiency and your future plans is part of our business advisory service.

- My accountant will automatically claim every tax relief available.
Your accountant can only work with the information you share. If you’ve had significant purchases, business travel, training costs, research and development activity, home working expenses or charitable giving, make sure you mention it. The more complete the picture, the better the advice.
- I only need to think about tax once a year.
In reality, the best tax planning happens throughout the year, not just when a deadline is looming. Being proactive about tax helps you manage cash flow, plan ahead and avoid a last-minute rush as deadlines approach.
Lastly, the biggest tax myth of all…
- Tax is just about paying as little as possible.
‘Good tax planning is about paying the right amount of tax, while respecting the rules,’ explains Anna, Accounts and Operations Manager at Spicer & Co Chartered Accountants in Dunstable. ‘This approach enables you to minimise tax payments while remaining fully compliant. It involves understanding your options, planning ahead and making informed decisions as your business grows.’
For many small businesses, proactive tax advice can reduce stress, improve cash flow and help avoid costly mistakes.

How we can help
If you would like clear, practical tax advice for your business, we’re always happy to help. Please get in touch with our team for friendly support and straightforward guidance.





















