"I Didn't Think I'd Have Any Tax to Pay..."

One sentence has probably surprised me more than any other during my career.

"I didn't think I'd have any tax to pay."

Very often, the person saying it isn't trying to avoid tax.

They've simply made what seemed like a perfectly reasonable assumption.

Sometimes they've inherited an asset.

Sometimes they've sold a property.

Sometimes they've received income from an investment.

Unfortunately, tax doesn't always work in the way people expect.

Over the years, I've learnt that assumptions can be expensive, particularly when important decisions have already been made.

Here are three conversations that have stayed with me.

"I thought Mum had already paid the tax."

A client came to see me after selling some shares that had originally belonged to their mother.

Before she died, she had transferred the shares into her child's name and paid Capital Gains Tax on the gift.

When the shares were eventually sold, the client was genuinely surprised that another Capital Gains Tax calculation was required.

"I thought Mum had already paid the tax when she transferred the shares to me."

It's an understandable assumption.

However, the tax paid by the mother when she made the gift and any Capital Gains Tax arising when the shares were later sold by her child were two separate tax events.

The fact that tax may have been paid once doesn't necessarily mean there can never be another tax charge.

The lesson?

Don't assume a previous tax charge settles the position for every future transaction. Different events can create different tax consequences.

"There wasn't any profit, so I didn't report it."

Another client had been letting a property for several years.

When I asked whether the rental income had been reported to HMRC, the reply was immediate.

"No, because after paying the mortgage, repairs and other expenses there wasn't any profit left."

Again, it wasn't an attempt to avoid tax.

The client had simply assumed that because there was very little money left each month, there couldn't be anything to report.

Unfortunately, taxable profit and the amount of cash left in your bank account are not always the same thing.

Depending on the nature of the expenses and the tax rules applying at the time, there may still be taxable income to report.

The lesson?

A lack of cash profit doesn't necessarily mean there are no tax reporting obligations.

"I thought the shares were in an ISA."

One client contacted me after receiving dividend income from a portfolio of investments.

They were concerned because HMRC had written asking about dividend income that hadn't been included on their tax return.

Their first response was:

"That can't be right. I thought all my shares were in an ISA."

As we reviewed the investment statements, it became clear that some of the shares were indeed held within an ISA, but others had been purchased outside the ISA wrapper over a number of years.

The dividends from those investments remained taxable.

It was an easy mistake to make, particularly as the portfolio had gradually built up over time.

The lesson?

Never assume every investment is held within an ISA. It's always worth checking how each investment is actually owned.

The common thread

Although the circumstances were very different, all three clients had one thing in common.

They had reached a logical conclusion based on the information they had.

None of them were trying to avoid tax.

They simply didn't realise there was another question to ask.

That's one of the reasons I enjoy working in personal tax.

Often, the most valuable advice isn't about finding a clever tax saving.

It's about helping people understand the rules before assumptions become expensive mistakes.

Jonathan's Tip

If you ever find yourself saying:

"I don't think there'll be any tax..."

pause for a moment.

That is probably the best time to ask the question.

Even if the answer is exactly what you expected, you'll have the reassurance of knowing you've made your decision with confidence.

Further reading

If any of these situations sound familiar, you may also find these articles helpful:

• Capital Gains Tax on Property in the UK: Rules Many Owners Misunderstand

• Trust Taxation Explained: The Key Issues Trustees Should Understand

• When Your Accountant Recommends a Tax Specialist: What Happens Next?

How we can help

At Tax Matters, we regularly advise individuals, landlords, trustees, executors and investors on complex personal tax matters.

Sometimes our role is to confirm that everything has been dealt with correctly.

Sometimes it's identifying an issue before it becomes a much larger problem.

Whether you've received a letter from HMRC, are planning to sell an asset or simply want reassurance that you've understood the tax position correctly, we'd be happy to help.

A final thought

One of the things I've learnt over the years is that tax isn't difficult because people fail to ask questions.

It's difficult because people often don't realise there is a question to ask.

If you're about to make an important financial decision, don't rely on assumptions, no matter how reasonable they seem.

A short conversation beforehand can often provide certainty, avoid unnecessary worry and, occasionally, prevent an expensive mistake.