Imagine receiving your tax return from your accountant showing that you owe absolutely nothing to HMRC.
No Income Tax. No National Insurance to pay. Perhaps even a tax refund.
Sounds like good news, doesn’t it?
But what if I told you that this seemingly excellent result could actually leave you worse off financially?
It might affect your State Pension, make it harder to secure a mortgage or mean missing out on valuable tax relief in future years.
And the worrying thing is that your tax return could be technically correct.
This is something I feel increasingly strongly about, particularly as accounting software and artificial intelligence make it easier than ever to prepare accounts and submit tax returns.
Getting the calculations right is important. But understanding what those calculations mean for someone’s life is where real accountancy advice begins.
An example: The business owner who bought a new vehicle
Let me illustrate this with a hypothetical situation. The figures and circumstances have been changed and do not represent any identifiable client.
Imagine a self-employed driver approaching retirement who decides to replace an ageing vehicle with a brand-new electric car.
Before accounting for the new vehicle, his business has made a profit of £28,000.
The new electric car has a qualifying cost of £36,000.
For this hypothetical example, assume the car is new and unused, has zero CO2 emissions and qualifies for a 100% first-year allowance, with the claimed amount adjusted for any private use as required.
His accountant correctly identifies this and deducts the full £36,000 from his business profits.
The result?
Profit before the capital allowance: £28,000
Capital allowance claimed: £36,000
Taxable trading loss: £8,000
Income Tax payable: £0
On the face of it, everything looks fine. The deduction is legitimate, the calculation is accurate and there is no Income Tax to pay.
But was this the best decision for the client?
Not necessarily.
What if we didn’t claim the whole allowance?
Here is something many business owners may not realise.
Just because HMRC allows you to claim 100% of qualifying expenditure in the first year doesn’t mean you must claim it all immediately.
In certain circumstances, you can claim part of the first-year allowance and leave the remainder to qualify for writing-down allowances in future years.
In our hypothetical example, we might consider claiming just £16,000 of the available £36,000 allowance.
This would leave:
Taxable trading profit: £12,000
Income Tax payable: £0, assuming no other taxable income
Unrelieved vehicle expenditure available for future writing-down allowances: £20,000
Depending on personal allowances, other taxable income and the precise tax year, the client might still pay no Income Tax that year, but the wider financial picture would be different.
The remaining £20,000 is not automatically deductible in full next year. Relief would normally be spread over future years under the applicable writing-down allowance rules.
Whether that produces a better overall tax outcome depends on future profits and other circumstances.
But it gives us an alternative worth considering.
And that is where a proper conversation with the client should begin.
The consequences nobody may have considered
1. His State Pension
If the client is approaching retirement, a trading loss could affect whether his self-employment provides a qualifying National Insurance year.
But shouldn’t somebody ask?
After all, a decision made to reduce tax today could affect someone’s retirement income tomorrow.
2. His mortgage
Now imagine the same client needs to remortgage.
His tax calculation shows a trading loss and no taxable business income.
A mortgage lender reviewing his self-employed income may question his affordability, even though the business generated a healthy profit before the capital allowance.
Some lenders will consider adjusted profits or make allowances for exceptional deductions. Others may take a different approach.
A straightforward product renewal with the existing lender might not even require a new affordability assessment.
But these are things we should establish before deciding how to prepare the return.
A £0 tax bill is not much consolation if the client subsequently encounters unnecessary difficulties arranging finance.
3. The value of future tax relief
What about next year?
Suppose the client’s business becomes more profitable. He might benefit from having some capital allowances available against future taxable profits.
Alternatively, if he paid substantial tax in a previous year, claiming the full allowance now and using an available loss relief could be more beneficial.
There is no single answer that suits everyone. Eligibility, timing and the effect of a claim need to be reviewed on the actual facts.
The question shouldn’t simply be, “How much can we deduct this year?” It should be, “Which available option gives this particular client the best overall outcome?”
Sometimes the important questions have nothing to do with the tax return itself
Consider what else an accountant might discover by looking beyond the figures.
Perhaps the client purchased the vehicle shortly before registering for VAT. Has anyone checked whether VAT on that purchase can be recovered?
If the vehicle was bought on hire purchase, has someone ensured that future capital repayments won’t also be deducted as ordinary motor expenses?
Perhaps the client’s spouse is transferring Marriage Allowance even though the client has no Income Tax liability. Could that arrangement be costing the couple money rather than saving it?
Perhaps the client has been with the same accountant for years. His previous returns might tell us about his changing earnings, business decisions and plans for retirement.
None of these matters requires extraordinary financial expertise to recognise.
They require curiosity, communication and a willingness to look beyond the immediate task.
They also require accountants dealing with bookkeeping, VAT and personal taxation to talk to one another.
A client’s financial affairs do not exist in separate departments, even if an accountancy practice is organised that way.
So what is the real value of an accountant in the age of AI?
I have been running an accountancy practice for more than 20 years and I believe our profession is facing an important turning point.
Technology can already process transactions, reconcile bank accounts, prepare financial statements and assist with tax calculations. AI is becoming increasingly capable of interpreting tax rules and identifying possible treatments.
Many of these services will continue becoming faster and cheaper.
I welcome that progress.
But it also forces us to ask an uncomfortable question.
If all we do is take information, enter figures, prepare accounts and submit returns, why should clients continue paying traditional accountancy fees when technology can perform much of that work for less?
Our value has to go beyond compliance.
It is in knowing that a client is approaching retirement and thinking about their pension.
It is in remembering that someone is hoping to buy a house and recognising how their reported income might affect that decision.
It is in understanding their business well enough to notice when something doesn’t look right.
It is in explaining alternatives, including when the option producing the lowest tax bill today might not be the best choice for tomorrow.
And sometimes it is simply in picking up the phone and asking a question nobody else thought to ask.
Technology can help us do all of this. It can make research easier, identify opportunities and save valuable time.
But we still need to take responsibility for the advice we give and genuinely care about the outcomes.
What should you expect from your accountant?
I’m not suggesting that every accountant should automatically become a financial adviser, mortgage broker or pensions specialist.
And I’m certainly not suggesting that every tax return showing a loss is wrong.
Sometimes claiming the maximum available relief really is the best option.
What I am saying is that a good accountant should recognise when a decision could have wider consequences and be prepared to discuss them.
If your business has made an unexpected loss, ask why.
If you have purchased a significant asset, ask whether there are different ways to claim the available tax relief.
If you are approaching retirement or planning to apply for a mortgage, make sure your accountant knows.
And if you’ve been working with the same accountancy practice for many years, ask yourself whether that relationship is helping you make better financial decisions or simply producing another set of accounts every year.
A final thought
I don’t believe the future of accountancy belongs to those who can prepare tax returns the fastest.
Nor do I believe it belongs exclusively to those who have the most sophisticated technology.
I believe it belongs to professionals who combine technical knowledge, technology, commercial understanding and genuine interest in the people they serve.
Because behind every tax return is a person.
Someone working long hours, building a business, supporting their family, paying off a mortgage or preparing for retirement.
And those people deserve more than an accurately completed form.
They deserve an accountant who looks at the numbers and asks: “What does this actually mean for you?”
This is a fictional illustration, not personal tax, pensions or mortgage advice. Tax treatment depends on the facts, the tax year and the availability of reliefs.
