Most businesses in Redditch choose a VAT scheme when they first register and never revisit it. That is a costly mistake.
Your circumstances change. Your turnover grows. Your supplier costs shift. And the VAT scheme that saved you money in year one may now be costing you more than it should.
Here are three clear warning signs that your business may be on the wrong VAT scheme, and what to do about it.
A Quick Overview of the Main VAT Schemes
Before getting into the warning signs, here is a quick comparison of the four main VAT schemes available to UK businesses:
| Scheme | Best For | VAT Rate | Key Benefit |
| Standard Rate | Most businesses | 20% | Reclaim input VAT on purchases |
| Flat Rate | Low-cost businesses | Sector-specific (e.g. 12%) | Simpler admin, keep the difference |
| Cash Accounting | Businesses with slow-paying clients | 20% | Pay VAT when client pays you |
| Annual Accounting | Stable businesses | 20% | One return per year, nine monthly payments |
Each scheme suits a different type of business. The wrong one for your situation means either overpaying VAT, doing unnecessary admin, or missing out on input VAT reclaims you are entitled to.
Warning Sign 1: Your Profit Margins Have Dropped but Your VAT Bill Has Not
| Warning Sign 1 You are on the Flat Rate Scheme but your costs have gone up significantly The Flat Rate Scheme (FRS) works well when your business has low costs relative to turnover. You charge clients 20% VAT, pay HMRC a lower flat rate percentage, and keep the difference. But when your supplier costs increase, you lose the advantage because you cannot reclaim VAT on purchases under FRS. |
This is one of the most common situations we see with Redditch businesses, particularly in construction, retail, and professional services where material and supplier costs have risen sharply in recent years.
If your margins have tightened but your VAT bill has stayed the same or grown, it is worth calculating whether switching to the Standard Rate Scheme would let you reclaim more input VAT on your purchases than you currently keep as profit under the flat rate.
Who this affects most
- Tradespeople and contractors whose material costs have increased
- Retailers buying more stock at higher prices
- Businesses that have recently taken on more equipment or premises costs
What to do
Run a comparison. Take your last four VAT quarters and calculate what you would have paid under the Standard Rate Scheme versus what you actually paid under FRS. If the difference is consistently in HMRC’s favour rather than yours, it is time to switch.
Warning Sign 2: You Are Regularly Waiting on Client Payments Before You Can Pay HMRC
| Warning Sign 2 You are on the Standard Rate Scheme and cash flow is under pressure Under the Standard Rate Scheme, you owe VAT to HMRC based on invoices raised, not payments received. That means if a client takes 60 or 90 days to pay, you may need to pay HMRC before the money has landed in your account. |
For Redditch businesses with longer payment cycles, particularly B2B service providers, freelancers, and subcontractors, this creates a recurring cash flow problem.
The Cash Accounting Scheme solves this directly. Under Cash Accounting, you only account for VAT when you actually receive payment from a client. You also only reclaim VAT on purchases once you have paid your supplier.
Who this affects most
- Businesses invoicing other businesses with 30, 60, or 90-day payment terms
- Seasonal businesses where income is lumpy throughout the year
- Service businesses with clients who are slow to pay
What to do
You can join the Cash Accounting Scheme if your taxable turnover is below £1.35 million. If you regularly find yourself paying VAT before the client has paid you, this switch could resolve your cash flow issue without changing what you ultimately owe HMRC.
Warning Sign 3: You Are Spending Hours on VAT Admin Every Quarter
| Warning Sign 3 Your bookkeeping time for VAT is disproportionate to the size of your business Quarterly VAT returns should not take a full day to complete. If you are spending significant time reconciling VAT every quarter, it usually means your bookkeeping processes are not set up correctly, or you are on a scheme that requires more detailed record-keeping than your business size warrants. |
The Annual Accounting Scheme is worth considering if your turnover is stable and predictable. Instead of filing four VAT returns per year, you file one. You make nine interim payments throughout the year based on your previous year’s VAT bill, then file a single return and settle any balance.
This is particularly useful for Redditch sole traders and small limited companies whose VAT liability does not fluctuate much month to month.
Who this affects most
- Sole traders and micro-businesses spending too long on quarterly returns
- Businesses with consistent, predictable income throughout the year
- Business owners who find VAT admin a recurring source of stress
What to do
You can join the Annual Accounting Scheme if your taxable turnover is below £1.35 million. You cannot use it in your first year of VAT registration. If your turnover is steady and you want fewer deadlines to manage, this is the simplest switch to make.
How to Switch VAT Schemes
Switching VAT schemes is straightforward but must be done correctly to avoid HMRC penalties.
- To join the Flat Rate Scheme: apply online through your HMRC VAT account
- To join Cash Accounting or Annual Accounting: you can start using them from the beginning of your next VAT period without notifying HMRC, but you must meet the eligibility criteria
- To leave the Flat Rate Scheme: write to HMRC or notify them through your VAT account; the switch takes effect from the start of the next VAT period
If you are unsure which scheme applies to your situation or whether you are eligible to switch, speaking to an accountant before making changes is the safest approach. Getting it wrong and using the incorrect scheme by mistake can result in penalties.
Frequently Asked Questions
Can I switch VAT schemes at any time?
In most cases, yes. For Cash Accounting and Annual Accounting, you can join from the beginning of your next VAT period as long as you meet the eligibility criteria. For the Flat Rate Scheme, you apply to HMRC and they confirm your flat rate percentage. You cannot usually switch mid-period.
What is the VAT registration threshold in the UK?
The VAT registration threshold is £90,000 in taxable turnover in any 12-month period as of 2024/25. Once you exceed this, you must register for VAT. You can also register voluntarily below this threshold, which can be beneficial if your customers are VAT-registered businesses.
What happens if I stay on the wrong VAT scheme?
You will either overpay VAT to HMRC, miss out on input VAT reclaims you are entitled to, or deal with unnecessary admin. In some cases, being on the wrong scheme for your circumstances can cost hundreds or thousands of pounds per year.
Is the Flat Rate Scheme always better for small businesses?
Not always. The Flat Rate Scheme works well when your costs are low relative to your turnover. If your costs have increased, particularly on supplies that carry VAT, you may reclaim more under the Standard Rate Scheme than you keep as profit under the flat rate.
Do Redditch businesses have access to local VAT advice?
Yes. M&B Tax Services is based in Rugby, which serves businesses across Redditch, Bromsgrove, Worcestershire, and the wider West Midlands. We handle VAT registration, scheme selection, quarterly returns, and scheme switches for small businesses and limited companies.
Not Sure Which VAT Scheme Is Right for You?
We review VAT scheme suitability as part of our bookkeeping and accounts service. If you have been on the same scheme since you registered, it is worth a conversation.
M&B Tax Services works with small businesses and limited companies across Redditch and the surrounding area. We are ICB-regulated accountants and we give you a straight answer on whether switching makes financial sense for your business.
Book a free 30-minute call and we will review your current VAT position at no cost.
If you’re self-employed, a landlord, a company director, or anyone with untaxed income in the UK, Self Assessment is probably a fixture on your calendar whether you like it or not. And 2026 is shaping up to be a year of real change for how HMRC handles deadlines and penalties — not just the usual dates you need to diarise, but a fundamental shift in how the system punishes lateness. This guide walks through everything you need to know: the key dates for the 2025/26 tax year, exactly how the current penalty system works, what’s changing, and how to keep yourself out of trouble.
The Tax Year and Why It Matters
The 2025/26 tax year runs from 6 April 2025 to 5 April 2026. Every Self Assessment return, whether you’re a sole trader, landlord, or someone with dividend income, reports on activity that falls within that window. It’s a common point of confusion: people assume the “2026” return covers the calendar year 2026, when in fact it covers income earned right up to 5 April 2026, with the filing and payment deadlines falling in the second half of that same calendar year and into early 2027.
Understanding this rhythm matters because HMRC’s whole penalty structure is built around it. Miss a date by a day, and the consequences kick in automatically — there’s no grace period built in for “I forgot” or “I meant to.”
Key Deadlines for the 2025/26 Tax Year
Here are the dates that matter most:
5 October 2026 — If this is your first time completing a Self Assessment return, this is your deadline to register with HMRC. This applies whether you’ve become self-employed, started renting out a property, begun earning dividend or investment income above the reporting thresholds, or need to declare any other untaxed income for the first time. Once registered, HMRC issues a Unique Taxpayer Reference (UTR), and you’ll need this before you can file anything. Registration itself can take a couple of weeks to process, so leaving it until the last moment is a bad idea even though the deadline feels generous.
31 October 2026 — This is the deadline for paper tax returns. Increasingly few people file this way — the vast majority now file online — but if you prefer paper, or you have a specific reason you can’t file digitally, this earlier deadline applies to you. Miss it, and you’ll need to file online instead, since HMRC generally won’t accept a late paper return except in exceptional circumstances.
31 January 2027 — The big one. This is the deadline for online filing of your 2025/26 return, and it’s also the deadline for paying any tax you owe for that year. This date does double duty: it’s both a filing deadline and a payment deadline, and missing either half triggers separate consequences.
31 January 2027 — If you make Payments on Account (advance payments toward your next tax bill, which apply if your last Self Assessment bill was over £1,000 and less than 80% of your tax was collected at source), your second payment on account for the following year is also due on this date, layered on top of any balancing payment for 2025/26.
31 July — For most people on Payments on Account, the first instalment toward the following year’s tax bill falls in the summer, so it’s worth keeping half an eye on cash flow across the year rather than treating January as the only date that matters.
It’s worth flagging that you don’t have to wait until January to file. Filing early — even in the spring or summer after the tax year ends — doesn’t move your payment deadline, but it does mean you know what you owe well in advance, which makes budgeting far less stressful than facing a surprise bill in the depths of winter.
How the Current Penalty System Works
For most Self Assessment taxpayers in 2025/26, penalties still follow the long-standing structure, and it’s worth understanding just how quickly the numbers can escalate.
Late filing penalties:
- File even one day after 31 January, and HMRC issues an automatic £100 penalty. This applies even if you owe no tax at all, and even if you’re actually due a refund.
- If your return is still outstanding three months after the deadline, daily penalties of £10 kick in, accumulating for up to 90 days — a potential extra £900 on top of the initial £100.
- At six months late, a further penalty applies: the greater of £300 or 5% of the tax due.
- At twelve months late, another penalty of the greater of £300 or 5% of the tax due is added, and in cases HMRC considers deliberate withholding, this can rise to 100% of the tax owed.
Late payment penalties and interest:
Payment penalties run on a separate track from filing penalties, and both can apply simultaneously if you’re both late to file and late to pay.
- A penalty of 5% of the unpaid tax applies if payment is still outstanding 30 days after the due date.
- A further 5% penalty applies at six months.
- Another 5% applies at twelve months.
- On top of all penalties, interest accrues daily on any unpaid tax from the payment deadline until it’s settled. Interest rates have risen substantially in recent years, tracking the Bank of England base rate plus a margin, so a delayed payment isn’t just about fixed penalties — the interest bill can grow meaningfully if a balance sits unpaid for months.
Stack these together and the numbers become serious quickly. A modest tax bill left completely unaddressed for a year can see penalties alone amount to a significant proportion of the original bill, before interest is even factored in.
The Big Change: HMRC’s Move to a Points-Based System
Here’s where 2026 becomes genuinely different from previous years. HMRC has been rolling out a new points-based penalty regime, already in place for VAT since 2023, and now extending into Income Tax Self Assessment.
The rationale is fairness: under the old system, someone who missed a single deadline after twenty years of perfect compliance was treated identically to someone who persistently ignored their obligations. Both got the same automatic £100 fine. The new system is designed to separate occasional slip-ups from genuine repeat offenders.
Under the points-based approach, taxpayers accumulate a point every time they miss a filing deadline, rather than facing an immediate fine. A financial penalty — typically £200 — is only triggered once a threshold is reached. For those filing annual returns, that threshold is two points; for those making quarterly submissions under Making Tax Digital for Income Tax, it’s four points. Once triggered, each further late submission brings another fixed penalty, and points generally expire after a period of sustained compliance, giving people a route back to a clean slate.
The rollout is happening in stages. From April 2026, this new system first applies to sole traders and landlords with income over £50,000 who are mandated into Making Tax Digital for Income Tax. Crucially, HMRC has confirmed a “soft landing”: penalty points won’t be charged for late quarterly updates during that first year of MTD, though the quarterly updates still need to be submitted, and the final annual declaration isn’t covered by this leniency. The wider rollout to all Self Assessment taxpayers, including those not yet in MTD, is expected to follow later.
Late payment penalties are also being restructured in parallel, moving toward a percentage-based system tied closely to how many days a payment is overdue, with smaller early-stage penalties that increase the longer a balance remains unpaid, plus separate interest charges running throughout.
What This Means for You Right Now
If you’re filing your 2025/26 return, the practical reality is this: for now, most people are still working within the traditional system described above, with the automatic £100 penalty very much alive and well for anyone who misses 31 January 2027. The points-based system is arriving in phases and, for the majority of taxpayers not yet in Making Tax Digital, the older rules still apply this year.
That said, it’s worth planning ahead if your income puts you within reach of the Making Tax Digital thresholds — currently £50,000, dropping to £30,000 and then £20,000 in subsequent years. If you’re likely to be brought into MTD soon, getting comfortable with quarterly digital record-keeping now will make the eventual transition far less disruptive.
Reasonable Excuses and Appeals
If you do miss a deadline, all isn’t necessarily lost. HMRC allows appeals against penalties where you have a genuine reasonable excuse — serious illness, the death of a close relative, an unexpected hospital stay, or a software or system failure that you couldn’t have reasonably worked around are commonly accepted grounds. What generally doesn’t work as an excuse is simply forgetting, finding the process too complicated, or relying on an agent without taking any steps to check they’d actually filed on your behalf — tribunals have been clear that taxpayers retain some responsibility even when using an accountant.
If you can’t pay in full by the deadline, contacting HMRC to arrange a Time to Pay agreement before the payment becomes overdue can also help. Agreeing a payment plan stops further late payment penalties from accruing, although interest continues on the outstanding balance until it’s cleared.
Final Thoughts
The core message for 2026 hasn’t fundamentally changed even as the machinery behind it evolves: register early if you’re new to Self Assessment, know your dates, and don’t leave filing or payment until the last possible moment. The shift toward a points-based system is a welcome move toward proportionality, but it doesn’t remove the obligation to file and pay on time — it just changes how repeated lateness accumulates consequences. Whether you’re navigating the old rules this year or getting ready for Making Tax Digital, the safest approach remains the same one it’s always been: file early, pay on time, and keep good records throughout the year rather than scrambling in January.
Joanna Bruty
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