Getting Paid Without VAT On The Invoice: The Subcontractor Cash-Flow Plan Under The Reverse Charge
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Getting Paid Without VAT on the Invoice: The Subcontractor Cash-Flow Plan Under the Reverse Charge
If you are a VAT-registered subcontractor working for another VAT and CIS-registered contractor, you will not usually add VAT to your invoice. Instead, under the VAT domestic reverse charge for building and construction services, your contractor accounts for that VAT directly to HMRC. For 2026/27 this means your invoice shows the net labour and materials figure, a note that the reverse charge applies, and no VAT to collect or hold. The practical effect on your cash flow is the real subject of this article, because that missing VAT changes how you should be managing money through the year.
I see the same confusion on a fairly regular basis: a subcontractor rings up convinced their invoice has been under-processed because there is no VAT line on it, or worse, a subcontractor who has quietly kept charging VAT out of habit and is now sitting on an invoice their contractor customer has refused to pay in full. Both problems come from the same root cause, which is not fully understanding what the reverse charge actually does and, more importantly, what it does not do to your underlying tax position.
What the Reverse Charge Actually Changes
The domestic reverse charge (DRC) for construction has applied since 1 March 2021. Under the standard , it applies where you are VAT registered, your customer is VAT registered, the payment is reported through the Construction Industry Scheme (CIS), the services are standard or reduced rated, and your customer has not told you in writing that they are an end user or intermediary supplier.
Where those conditions are met, you do not charge VAT on your invoice. Your contractor customer calculates the VAT themselves, declares it as output tax on their own VAT return, and simultaneously reclaims it as input tax, subject to the usual rules on what is recoverable. The net effect for the contractor is broadly VAT-neutral on that transaction. For you, the subcontractor, the effect is that no VAT ever passes through your bank account on that job.
This is the point that trips people up. Under normal VAT accounting, you collect VAT from your customer and hold it, often for weeks, before paying it over to HMRC on your quarterly return. Some subcontractors, whether they realise it or not, use that VAT float as informal working capital in the gap between collection and payment. The reverse charge removes that float entirely on any job it applies to. You were never going to keep that money anyway, since it belonged to HMRC, but the cash-flow habit of having it sit in your account for a period was real, and losing it catches people out if they have not planned for it.
Who the Reverse Charge Applies To in Practice
The DRC only bites on business-to-business supplies within the CIS chain. It does not apply where:
● Your customer is not VAT registered
● Your customer is not within CIS for that payment
● Your customer has confirmed in writing that they are an end user (for example, a property developer selling the finished building, or a business having work done on its own premises rather than as part of onward construction supply)
● The services are zero-rated, such as most new-build residential construction
● You are supplying staff through an employment business rather than construction services in your own right
A Milton Keynes example that comes up often: a groundworks subcontractor working for a main contractor building a new logistics unit near the M1 corridor will almost always be within the reverse charge, because the main contractor is VAT and CIS registered and is not the end user. The same subcontractor doing a driveway and patio for a homeowner in Newport Pagnell charges VAT in the normal way, because the homeowner is a private individual, not a business within the CIS chain at all.
Mixed supplies matter too. If a single invoice covers services that would mostly fall under the reverse charge, with only a small element that would not, HMRC's guidance allows a concession, broadly where the non-reverse-charge element is no more than 5% of the total, to treat the whole supply under the reverse charge rather than splitting the invoice. Get this wrong on a large invoice and you can end up either overcharging VAT you should not have collected, which your contractor customer will query and likely refuse to pay, or undercharging where the reverse charge genuinely should not apply, which leaves you short of output tax you should have declared.
The Subcontractor Cash-Flow & VAT Reverse Charge Simulator (2026/27)
Navigating the VAT domestic reverse charge alongside Construction Industry Scheme (CIS) deductions can transform your monthly cash cycle, and this interactive dashboard from Atlas Tax Advisors shows you exactly how those rules affect your bank balance in real time. Simply enter your monthly labour and materials figures, select your current CIS verification status, and adjust your reclaimable input VAT to see an instant visual comparison between standard VAT invoicing and the reverse charge regime. You can also switch across the built-in tools to check whether a specific contract qualifies for the reverse charge, calculate the 5% mixed-supply disregard, track your rolling turnover against the £90,000 VAT registration threshold, and generate compliant HMRC invoice wording with a single click. Use the results to spot working-capital gaps early, plan for regular VAT repayments, and ensure every invoice gets paid without compliance delays.
The Cash-Flow Plan: What to Actually Do Differently
The core planning point is this: because you are no longer collecting and briefly holding VAT on reverse charge sales, your cash cycle for those jobs is thinner than it used to be, and thinner than a non-construction business of the same size would experience. You need to plan around that rather than be surprised by it each quarter.
1. Separate your VAT return outcome from your working capital assumptions
Many subcontractors who move heavily into reverse charge work find their VAT returns swing from a payment position to a repayment position. This happens because you are still reclaiming input VAT on materials, fuel, tools, and overheads, but you are declaring far less output VAT than before, since most of your sales income now carries no VAT at all. If you were used to a VAT bill every quarter and budgeted for it, a shift to regular repayments is good news, but only if you notice it and plan to actually claim the repayments promptly rather than letting returns sit unfiled or delayed.
2. Reconsider the Flat Rate Scheme if you are on it
This is one of the less obvious traps. If you are a labour-only or mainly labour subcontractor using the VAT Flat Rate Scheme, reverse charge sales are excluded from the scheme calculation entirely. HMRC's technical guide confirms that reverse charge supplies are neither a relevant supply nor a relevant purchase for Flat Rate Scheme purposes, so you cannot apply your flat rate percentage to that income at all. In practice, for many CIS subcontractors doing predominantly reverse charge work, this makes the Flat Rate Scheme largely pointless, since there is often very little standard-rated turnover left for the scheme to actually apply to, while you still lose the ability to reclaim input VAT on materials and overheads under standard accounting. If most of your invoicing is now reverse charge, it is worth reviewing with your adviser whether standard VAT accounting would leave you better off, because for many subcontractors in this position it will.
3. Get your invoice wording right, every time
An invoice subject to the reverse charge must show the net value of the supply, must state clearly that the reverse charge applies, and must show the rate of VAT that would have applied and the amount of VAT due under the reverse charge, even though you are not charging it. A common wording is along the lines of: "Reverse charge: customer to account for VAT to HMRC at 20% (£X) under the VAT domestic reverse charge for construction." Missing this note is a compliance failure even though no VAT actually changes hands, and I have seen contractors bounce invoices back purely because the reverse charge statement was missing, which delays payment for reasons that have nothing to do with the quality of the work.
4. Do not confuse the reverse charge with gross payment status
These are two different mechanisms and solving one does not solve the other. The reverse charge is about VAT. Gross payment status under CIS is about Income Tax and National Insurance, and it is the more direct lever for improving cash flow if deductions are your real problem. Under CIS, a registered subcontractor normally has 20% deducted from the labour element of payments, rising to 30% if you are not verified. If you hold gross payment status, that deduction drops to nil and you settle your tax through Self Assessment instead. To qualify, HMRC applies a turnover test, currently requiring net construction turnover of at least £30,000 for a sole trader (with higher thresholds for partnerships and companies with multiple relevant people), alongside business and compliance tests. Full detail on how to get paid under CIS, including gross payment status, is set out in HMRC's guidance on what you must do as a CIS subcontractor.
A subcontractor losing sleep over cash flow because "there's no VAT on my invoices any more" is very often actually more troubled by the 20% CIS deduction sitting on top, and that is the piece worth fixing first if you meet the criteria.
5. Watch your VAT registration threshold calculation carefully
Reverse charge sales still count as your taxable turnover for the purposes of the VAT registration threshold, even though you do not charge VAT on them. For 2026/27 that threshold remains £90,000 of taxable turnover in any rolling 12-month period, unchanged from 2025/26, with a deregistration threshold of £88,000. I have come across subcontractors who assumed that because reverse charge sales generate no VAT to collect, they somehow do not count towards the threshold. They do. If you are trading close to £90,000 and doing a mix of reverse charge and end-user work, you need to be tracking the combined rolling total, not just the invoices where VAT actually appears. The registration rules themselves are set out on GOV.UK's guidance on registering for VAT.
A Worked Example
Take a heating and plumbing subcontractor based near Bletchley, working mainly for two main contractors on commercial fit-out jobs, both VAT and CIS registered, neither of which has given an end-user notification. In a typical month the subcontractor invoices £14,000 net for labour and materials. Under the reverse charge, no VAT is added to that invoice, so the subcontractor receives £14,000 less any CIS deduction, rather than £14,000 plus £2,800 VAT that would previously have sat in the account for several weeks before being paid to HMRC.
If that subcontractor is CIS registered but does not hold gross payment status, a further 20% is deducted from the labour portion before payment. Say £9,000 of the £14,000 is labour: £1,800 is deducted at source, so the actual cash received is £12,200. On the VAT return, the subcontractor still reclaims input VAT on materials, van costs, and tools bought that month, which might come to £600 or so, and because there is no output VAT to offset it against on the reverse charge sales, the VAT return moves into a repayment position rather than the payment position the subcontractor might be used to from years of standard VAT accounting.
The lesson from that example is not that the subcontractor is worse off overall, materials VAT was always reclaimable and CIS deductions were always going to apply regardless of the reverse charge. The lesson is that the pattern of cash arriving has changed on two fronts at once, VAT and CIS, and budgeting on the old rhythm of "invoice plus VAT, minus a quarterly VAT bill" will leave a gap that catches out even an organised business if nobody has walked through the new numbers.
VAT Reverse Charge Cash-Flow Dashboard for UK Construction Subcontractors (2026/27)
This interactive dashboard explains how the VAT domestic reverse charge affects cash flow for VAT-registered construction subcontractors in the UK. It shows when the reverse charge applies, why you no longer collect VAT on qualifying invoices, and the practical steps needed to manage the thinner cash cycle that results. Use the tabs to explore the rules, common pitfalls, key takeaways and official HMRC links, then try the simple calculator to see how a typical invoice is affected once both the reverse charge and CIS deductions are applied. All figures and guidance reflect the 2026/27 tax year.
Common Mistakes I See
● Charging VAT anyway, out of habit, on a reverse charge invoice. The contractor customer usually spots this quickly and either refuses to pay the VAT element or pays it and then has an awkward conversation later about getting it back. Either way it delays payment.
● Not charging VAT when the customer is actually an end user. If your customer has told you in writing they are an end user, or the job is for a private individual, you should be charging VAT normally. Applying the reverse charge here means you have under-declared output tax.
● Assuming reverse charge income does not count towards the VAT threshold. As above, it does.
● Staying on the Flat Rate Scheme without checking whether it still makes sense. Worth a proper review if most of your income moved to reverse charge in the last couple of years.
● Treating "no VAT on the invoice" as the same problem as "20% CIS deducted from the invoice". They need separate solutions.
Key Takeaways
● The reverse charge means VAT-registered subcontractors working for VAT and CIS-registered contractors do not charge VAT on qualifying construction invoices for 2026/27; the contractor accounts for it instead.
● Reverse charge income still counts towards your £90,000 VAT registration threshold for 2026/27.
● If you are on the Flat Rate Scheme and most of your work is reverse charge, it is worth checking whether standard VAT accounting suits you better, since reverse charge supplies fall outside the flat rate calculation entirely.
● The reverse charge and CIS deductions are separate issues. Gross payment status, not anything to do with VAT, is the mechanism that stops the 20% (or 30%) CIS deduction.
● Get the reverse charge wording right on every qualifying invoice to avoid payment delays.
FAQs
Do I still need to be VAT registered if most of my work is now reverse charge?
Yes, if your taxable turnover, including reverse charge sales, exceeds £90,000 in any rolling 12-month period for 2026/27, you must register regardless of how much VAT you actually collect.
Will my VAT bill disappear completely under the reverse charge?
Not necessarily. You still reclaim input VAT on materials, tools, and overheads, so if most of your sales are reverse charge, your VAT return is likely to move into a repayment position rather than disappear altogether.
Can I choose not to use the reverse charge if my contractor customer asks me to charge VAT normally?
No, if the statutory conditions are met, the reverse charge is mandatory, not optional. Your customer confirming end-user status in writing is the correct route if VAT should be charged normally, not an informal request to invoice differently.
Does the reverse charge apply to materials as well as labour?
Yes, where the reverse charge applies to a supply of construction services, it generally applies to the whole supply including materials, not just labour, subject to the mixed-supply concession for small non-qualifying elements.
How do I know if my customer counts as an end user?
An end user is a business that receives construction services but does not sell them on as part of its own construction supply, for example a business having work done on its own offices. They need to confirm this to you in writing; you should not assume it.
What happens if I get the reverse charge wrong on an invoice?
If you charge VAT that should have been reverse charged, your contractor customer may query or delay payment, and you may need to issue a credit note and reissue the invoice correctly. If you fail to charge VAT that should have applied, you may be liable for output tax you did not collect.
Does the reverse charge affect my Self Assessment or Income Tax position?
No, the reverse charge is purely a VAT mechanism. Your Income Tax position, and any CIS deductions, are calculated separately based on your actual invoiced income, not affected by how VAT is accounted for.
Should I come off the Flat Rate Scheme if I move to reverse charge work?
It depends on your mix of income and costs, but it is worth reviewing, since reverse charge supplies do not count within the flat rate calculation at all, which can make the scheme less useful, and sometimes actively worse, once reverse charge work dominates your turnover.
Is the domestic reverse charge the same as gross payment status under CIS?
No, these are separate systems: the reverse charge concerns VAT and is set by whether your customer is VAT and CIS registered and not an end user; gross payment status concerns Income Tax and National Insurance deductions and is applied for separately based on turnover and compliance tests.
Disclaimer
The article content is checked against primary sources, including GOV.UK and HMRC guidance and manuals, and is reviewed at least annually. Worked examples and figures are illustrative and are included to show how the rules apply in principle. They are not a calculation of your own liability.
Tax is highly fact-sensitive. Small differences in circumstances, timing, residence, or structure can change the outcome significantly, and the rules themselves change frequently. This article is therefore general information and is not advice for your situation. You should not act, or refrain from acting, on the basis of this article alone. Atlas Tax Advisors accepts no liability for any loss arising from reliance on it without taking advice. For your specific situation, please contact us or any professional accountant.
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