Business taxes for SMEs: which taxes you pay and how to stay ahead of them

Ask an owner which business taxes they pay and the answer is usually the tax on profit. The bank statements tell a different story: payroll taxes every month, VAT or sales tax and instalments every quarter, local taxes once a year. For a business with staff these flows are often several times the profit tax. Much of it is money collected for the state from customers and employees, which is why it causes trouble: it sits in your account until the due date.

Below, business taxes are sorted by type and legal structure, with filing rhythms, deductions and a comparison of the main markets. Rates and thresholds change too often to print; the official pages have the current numbers. First-year VAT registration and reserves are on tax and bookkeeping for new businesses.

Which taxes does a business pay?

Almost every tax system uses the same building blocks. The names, rates and collectors differ.

The third column decides how you treat the cash. Tax you collect for others is a liability from the moment you receive or withhold it. The US is explicit: withheld employment taxes are called trust fund taxes because the employer holds the employee's money in trust, and a responsible person who wilfully fails to pay them over can be penalised personally (source: IRS, October 2026).

How your legal structure decides the tax

Moving from sole trader to company can itself trigger tax on assets and goodwill (the value beyond the assets). Get advice before the transfer.

Business taxes compared: US, UK, EU, Canada and Australia

Checked October 2026. Within the EU, company tax rules are set nationally and can differ per member state (source: Your Europe, April 2026), while VAT follows a common directive.

Check your country

• Collectors: which national, regional and local bodies collect which tax.
• Registrations: which taxes need their own registration.
• Calendar: return and payment dates per tax, including instalments.
• Structure: how profit, salary and dividends are taxed for your legal form.
• Cross-border: withholding, VAT on foreign sales and a taxable presence abroad.

Filing rhythms: your tax calendar is a cash flow calendar

Payroll taxes follow the pay period, VAT or GST returns are usually monthly or quarterly, profit taxes are annual with instalments, and local taxes come as an annual bill. Where the rhythms coincide, a profitable business can run short of cash.

Joachim and his partner run Calder Print Works, a commercial printer organised as a company, with 18 staff and revenue of €2.4 million. Its tax payments over a year:

Fictitious Firmfocus example. Amounts are illustrations, not a specific country's rates, and payment dates differ per country. The logic works in any currency.

Calder moves €1,008,000 a year through its tax accounts, 42% of revenue, while the tax it bears itself is €304,000. A month with payroll only costs €59,000. A first month of the quarter costs €130,500, and €144,500 if the property tax falls in it. Joachim now moves VAT and withheld amounts to a separate account as they arise and plans the peak months in his cash flow forecast. The compliance calendar shows how to map the dates.

Which business expenses are deductible?

The wording differs; the logic barely does. In the US an expense must be ordinary, meaning common and accepted in your industry, and necessary, meaning helpful and appropriate for the business (source: IRS, February 2023). In the UK only business costs are allowable, and mixed costs such as a phone bill are split (source: GOV.UK, November 2024). Three principles hold almost everywhere:

• Purpose: the cost serves the business; with mixed use, only the business share counts, on a reasonable basis.
• Timing: running costs are deducted in the year, assets that last are spread through depreciation or capital allowances.
• Evidence: invoice, payment and business reason must all be traceable.

Many systems limit costs such as entertainment and reward others such as research or energy-saving investment. Ask which incentives apply before you invest; some have registration deadlines. See also grants and public funding.

Withholding taxes and dividends

A company paying dividends, interest or royalties, or certain foreign parties, may have to withhold tax for the recipient. Germany, for example, withholds tax on dividends, but within the EU most dividends to a corporate parent are tax-free and double tax agreements often lower the rate (source: Germany Trade & Invest, October 2026). Check withholding before a first payment to a foreign shareholder or group company.

Bookkeeper, accountant or tax adviser?

Whoever does the work, the return remains your responsibility, and so do penalties for late or wrong filing. How these roles fit together is on the page about the finance function.

Small business or larger business

Pitfalls

• Spending collected tax: VAT and withheld payroll tax belong to the state from day one.
• Planning on last year's rules: rates, thresholds and deductions change every budget.
• Missing local taxes: a new site can bring a new tax and a new registration.
• Treating instalments as the final bill: a jump in profit brings a balancing payment.
• Changing structure without advice: the transfer itself can be taxed.

Business taxes rest on good bookkeeping and records. More in Finance and the knowledge base.