March 23, 2026
By Merranti

When Should I Get an Accountant in the UK?

One of the most common questions new and growing business owners ask is:

When should I get an accountant?

The honest answer is:

You are not legally required to have an accountant — but there are clear points where professional support becomes financially and practically sensible.

In this guide, we explain:

When sole traders should consider hiring an accountant
When limited companies almost always need one
The warning signs you are outgrowing DIY
The risks of waiting too long
What an accountant actually does beyond filing tax returns

Do You Legally Need an Accountant in the UK?

No.

There is no legal requirement to appoint an accountant if you are:

A sole trader
A limited company director

However, you are legally responsible for:

Filing accurate tax returns
Paying the correct tax
Meeting Companies House deadlines (if incorporated)
Keeping proper accounting records

Even if you hire an accountant, the legal responsibility remains yours.

The question is not “Do I have to?”
It is “At what point does it make sense?”

When Should a Sole Trader Get an Accountant?

Many sole traders start without one.

However, there are clear trigger points.

1. When Your Profit Starts Growing

If your annual profit exceeds £30,000–£40,000, tax planning becomes more important.

You may need to consider:

Higher-rate tax exposure
Pension contributions
Payments on Account
VAT registration thresholds

At this level, planning can often save more than accountancy fees.

2. When You Approach the VAT Threshold

As of 2026, the VAT registration threshold is £90,000 (rolling 12-month turnover).

If your turnover approaches this level, you should seek advice before:

Registering late
Charging VAT incorrectly
Missing Flat Rate Scheme considerations

Late VAT registration can result in significant backdated liabilities.

3. When Your Tax Bills Surprise You

If January tax payments feel larger than expected, you may not be planning properly.

Common shocks include:

Payments on Account
National Insurance
Higher-rate tax thresholds

An accountant helps forecast liabilities before they become stressful.

4. When You Are Unsure About Expenses

If you are asking:

“Can I claim this?”
“Is this allowable?”
“Can I put this through the business?”

it may be time for structured advice.

Over-claiming risks penalties. Under-claiming means overpaying tax.

5. When You Are Considering Incorporation

Moving from sole trader to limited company is a major decision.

It affects:

Tax
Legal liability
Administration
Long-term exit planning

Professional advice before incorporating is usually advisable.

When Should a Limited Company Get an Accountant?

For most limited companies, the answer is:

Immediately or very soon after incorporation.

Here’s why.

1. Corporation Tax Is More Complex Than Income Tax

Limited companies must:

Prepare statutory accounts
File a Corporation Tax return (CT600)
Calculate marginal relief correctly
Understand associated company rules
Track dividends and reserves

Corporation Tax in 2026 operates at:

19% for profits up to £50,000
25% for profits over £250,000
Marginal relief in between

Errors in calculation can be costly.

2. Dividends Must Be Lawful

Many new directors do not realise:

Dividends can only be paid from distributable profits.

If you take money incorrectly:

It may create an overdrawn Director’s Loan Account
Section 455 tax may apply
Legal compliance issues may arise

This is one of the most common limited company mistakes.

3. Companies House Deadlines Are Strict

Limited companies must file:

Annual accounts
Confirmation Statements

Late filing penalties are automatic.

Repeated delays can lead to strike-off proceedings.

4. Payroll and Director Remuneration Planning

Directors must decide:

How much salary to take
When to pay dividends
Whether to contribute to pensions

The optimal mix depends on:

Corporation Tax
Personal tax bands
Employment Allowance eligibility
Other income

This requires coordination, not guesswork.

Warning Signs You Should Get an Accountant

If any of the following apply, you are likely ready for professional support:

You are spending evenings worrying about tax
You are unsure about deadlines
You are Googling tax rules regularly
Your business is growing quickly
Your turnover exceeds £75,000
You are employing staff
You are VAT registered
You have multiple income streams
You feel uncertain about compliance

Stress and uncertainty are often signs you have outgrown DIY.

When Is It Too Late?

It is rarely too late to appoint an accountant.

However, problems we commonly see include:

Overdrawn Director’s Loan Accounts
Late VAT registration
Unfiled accounts
HMRC penalties
Poor bookkeeping
Incorrect dividend treatment

Fixing historic issues is usually more expensive than setting things up properly from the start.

Is It Worth Getting an Accountant Early?

For many businesses, yes.

Early involvement means:

Correct structure from the start
Proper software setup
Accurate record-keeping
Early tax planning
Fewer mistakes

Preventative advice is often cheaper than corrective work.

What Does an Accountant Actually Do?

Beyond filing tax returns, a good accountant should:

Estimate your tax before it becomes due
Advise on salary and dividend planning
Ensure deadlines are met
Identify allowable expenses
Monitor VAT exposure
Explain your numbers clearly
Provide commercial insight

Accountancy is not just about compliance — it is about clarity and confidence.

How Merranti Accounting Can Help

At Merranti Accounting, we work with:

Sole traders
Limited company directors
Landlords
Growing ecommerce businesses
Professional service providers

We provide structured support including:

Tax return preparation
Corporation Tax planning
VAT compliance
Director remuneration strategy
Year-end planning
Deadline management

We aim to give business owners clarity over their numbers and reduce unnecessary tax risk.

Whether you are just starting or scaling, the right level of support depends on your turnover, structure, and growth plans.

So, When Should You Get an Accountant?

You should seriously consider getting an accountant if:

You have formed a limited company
Your profit exceeds £30,000–£40,000
You are approaching VAT registration
You are unsure about tax planning
You want proactive advice rather than reactive compliance

The earlier professional support is in place, the fewer structural problems tend to arise.

You do not need to wait until something goes wrong.

Final Thoughts

There is no legal requirement to appoint an accountant in the UK.

However, there are clear financial and practical tipping points where doing everything yourself becomes inefficient or risky.

If your business is growing, becoming more complex, or generating significant profit, structured advice can:

Reduce stress
Improve tax efficiency
Prevent penalties
Support long-term growth

Individual circumstances vary, and the right time to appoint an accountant depends on your structure, income level, and future plans.