How to Deregister for VAT

VAT deregistration is something many businesses overlook until it becomes urgent. I see it most often when turnover drops, when a business changes direction, or when someone closes or restructures entirely. Done properly, deregistering for VAT can simplify your admin and improve cash flow. Done badly, it can create unexpected VAT bills and unnecessary HMRC attention.

In this article, I am going to explain when you can deregister for VAT, when you must deregister, how the process works in practice, and the traps I regularly see businesses fall into. I will also explain what happens to VAT on stock and assets when you deregister, because this is where the biggest surprises tend to appear.

Everything here is based on real UK practice and current guidance as applied by HMRC and set out on GOV.UK, but explained in plain English rather than technical language.

What VAT Deregistration Means

Deregistering for VAT means your business is removed from the VAT register. From your deregistration date:

You stop charging VAT on sales

You stop submitting VAT returns

You can no longer reclaim VAT on purchases

Your VAT number becomes invalid

It does not erase your VAT history. HMRC can still review earlier VAT periods and you remain responsible for any errors made while you were registered.

When You Can Deregister for VAT Voluntarily

Most VAT deregistrations are voluntary rather than compulsory.

You can apply to deregister for VAT if your taxable turnover is expected to be below the deregistration threshold.

The current VAT deregistration threshold is £83,000.

This is slightly lower than the registration threshold and it is based on expected future turnover, not historic figures.

You can usually deregister if:

Your taxable turnover has fallen below £83,000

You expect it to remain below that level going forward

You are not planning a short-term spike in income

HMRC will expect your expectation to be reasonable. If turnover drops for one month but then rebounds, deregistration is unlikely to be appropriate.

When You Must Deregister for VAT

In some situations, VAT deregistration is compulsory rather than optional.

You must deregister if:

You stop trading entirely

You sell or transfer your business and it is not a transfer of a going concern

Your business structure changes and the VAT registration cannot continue

You join or leave a VAT group

Your supplies become entirely VAT exempt

Failure to deregister when required can lead to ongoing VAT obligations and penalties.

VAT Deregistration When You Stop Trading

If your business ceases trading, you must deregister for VAT even if turnover was previously high.

This commonly happens when:

A sole trader retires

A company is closed or struck off

A side business is abandoned

A contractor finishes work permanently

Deregistration should be done as soon as you know trading has stopped. Delaying simply creates extra VAT returns with nil figures and increases the risk of missing deadlines.

Deregistering Because Turnover Has Dropped

This is the most common scenario I see.

Businesses often grow past the VAT threshold, register, and then later shrink again. When turnover falls and stays lower, VAT can become a burden rather than a benefit.

Typical situations include:

Moving from business-to-business work to the general public

Reducing working hours

Scaling back after a busy period

Changing pricing strategy

Losing a major client

In these cases, VAT deregistration can make a business more competitive and easier to manage.

How to Deregister for VAT

VAT deregistration is done online through your HMRC VAT account.

You will need to provide:

Your VAT registration number

The reason for deregistering

The date you want deregistration to take effect

Your estimated taxable turnover going forward

Once submitted, HMRC will review the request and confirm the deregistration date in writing.

You should not stop charging VAT until HMRC confirms the effective date.

Choosing the Correct Deregistration Date

The deregistration date matters more than many people realise.

If you are deregistering voluntarily, you can usually choose a date that makes sense for your business, as long as it is not in the future.

If you are deregistering because you stopped trading, the date should normally be the last day you made taxable supplies.

Charging VAT after your deregistration date is not allowed, even if customers are happy to pay it.

What Happens After You Deregister

Once deregistered:

Your VAT number becomes invalid

You must update invoices and pricing

You must stop reclaiming VAT

You may need to submit a final VAT return

The final VAT return is particularly important and often overlooked.

The Final VAT Return Explained

Your final VAT return covers the period up to your deregistration date.

It must include:

VAT on all sales up to that date

VAT on purchases up to that date

Any VAT due on stock and assets retained

HMRC will expect this return to be accurate and supported by records, even if your business is winding down.

VAT on Stock and Assets When You Deregister

This is the area that causes the most confusion and the most unexpected VAT bills.

When you deregister, HMRC treats certain items as if you have sold them to yourself.

You may have to pay VAT on:

Stock held at deregistration

Equipment

Fixed assets

Business assets you keep for personal use or future trading

This only applies where VAT was originally reclaimed on those items.

The £1,000 Rule

There is an important relief here.

If the total VAT due on stock and assets is £1,000 or less, you do not need to account for it on your final VAT return.

If it exceeds £1,000, VAT is due on the full amount, not just the excess.

This catches people out regularly.

Valuing Stock and Assets

VAT is calculated based on the current value of the items, not the original purchase price.

HMRC expects a fair market value, not a fire-sale or artificial figure.

For stock, this is usually:

What you would reasonably sell it for

Net of VAT

At the deregistration date

Deregistering for VAT and Pricing

Once you deregister, your prices should normally fall if you were previously charging VAT.

However, some businesses choose to keep prices the same and simply increase their margin. There is no rule either way.

What matters is that:

You do not charge VAT

You do not describe prices as VAT inclusive

Your invoices are clear

Misleading pricing after deregistration is a common compliance issue.

Deregistration and Existing Contracts

If you have ongoing contracts, VAT deregistration needs to be handled carefully.

Issues often arise where:

Prices were agreed as VAT exclusive

Contracts span the deregistration date

Advance payments were received

In some cases, VAT may still be due even after deregistration if the tax point occurred earlier. This is an area where tailored advice is often needed.

Deregistering for VAT as a Sole Trader

For sole traders, VAT deregistration is relatively straightforward.

However, problems arise when:

Personal and business finances are mixed

Stock is retained for personal use

Trading restarts shortly after deregistration

If trading restarts and turnover increases again, VAT re-registration may be required.

Deregistering for VAT as a Limited Company

For limited companies, VAT deregistration often coincides with:

Dormancy

Closure

Major restructuring

Group changes

Directors must ensure:

Final VAT returns are submitted

Records are retained

VAT on assets is correctly declared

Even if a company is struck off later, VAT liabilities remain enforceable.

VAT Records After Deregistration

You must keep VAT records for at least six years after deregistration.

This includes:

VAT returns

Sales invoices

Purchase invoices

Asset records

Stock valuations

HMRC can still open enquiries into past periods, even after deregistration.

Common VAT Deregistration Mistakes I See

Some of the most frequent issues include:

Stopping VAT before HMRC confirmation

Forgetting the final VAT return

Ignoring VAT on assets and stock

Choosing the wrong deregistration date

Deregistering when turnover is only temporarily low

Failing to update invoices and systems

Most of these mistakes are avoidable with a bit of planning.

Can HMRC Refuse Deregistration?

Yes, HMRC can refuse a deregistration request.

This usually happens where:

Turnover is likely to exceed the threshold again

The drop in income appears temporary

The business is part of a wider structure

Deregistration appears to be for tax avoidance reasons

If refused, the business remains VAT registered and must continue to comply.

Re-registering for VAT Later

If your business grows again, VAT re-registration may be required.

There is no penalty for deregistering and later re-registering, as long as both actions were justified at the time.

However, frequent changes can attract scrutiny, so decisions should always be commercially driven rather than reactive.

When I Recommend Professional Advice

I strongly recommend getting advice before deregistering if:

You hold significant stock or assets

You have ongoing contracts

You operate in property or construction

You have mixed VAT supplies

Your turnover fluctuates

You are closing or restructuring a company

VAT deregistration is simple on the surface but complex underneath.

Final Thoughts on VAT Deregistration

Deregistering for VAT can be the right move for many businesses, especially when turnover falls or the nature of work changes. It can reduce admin, simplify pricing, and improve cash flow.

However, it should never be done casually. The final VAT return, the treatment of assets, and the timing all matter.

My advice is always to step back, review the numbers, and understand the consequences before clicking the deregister button. VAT is far easier to manage when you plan ahead rather than react after HMRC get involved.