You are a subcontractor in the UK, you have likely felt the sting of long waits for your CIS refunds. These refunds are crucial for keep your cash flow healthy. But delays from HMRC are becoming more common.
In fact, it is a topic that been trending in forums and on LinkedIn, with many businesses complaining about waiting months for their money. For subcontractors, this delay can be devastating hampering your ability to pay bills, meet deadlines and keep your business running smoothly.
IBISS & CO., Understand the pressure that these delays put on subcontractors. As trusted construction accountants, we have years of experience in navigating the complexities of the CIS. We help many businesses in speeding up their refunds and avoid unnecessary hold ups with HMRC.
What is CIS and Why It is Important for Subcontractors
The Construction Industry Scheme is a tax system that contractors must use when they hire subcontractors in the construction industry. It make sure that tax is deducted at source from payments made to subcontractors. The issue arises when subcontractors overpay tax and need to reclaim the difference, which they are entitled to as a refund.
For subcontractors, CIS refunds are often the lifeblood of their business. These refunds can help with cash flow but when they are not on time by HMRC. It puts your all operation at risk. Not having access to your own money can make it hard to cover essential costs like wages, materials or even pay for daily expenses.
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HMRC Delays & Their Impact on Cash Flow
So what is causing these delays? Well, HMRC has been struggling with backlogs for years & unfortunately many subcontractors find themselves waiting far longer than they should for their refunds. In some cases, businesses are left in the dark about when they will receive their payments which only adds to the stress.
The ripple effect is bigger. Late refunds can result in late payments to your own suppliers, missed opportunities for growth or even the inability to pay your staff on time. If you are relying on these refunds to keep your business going the longer you wait. The harder it becomes to survive.
Speed Up the CIS Refund Process: Practical Tips for Subcontractors
Getting your CIS refund does not have to be a painful wait. With a few practical steps, you can speed up the process and avoid unnecessary delays. Here is your tips for faster CIS refunds.
Ensure Accurate Evidence Pack
One of the biggest reasons for delays is missing or incorrect paperwork. To avoid this you need to gather all the necessary evidence and make sure it is complete. This means having invoices, statements and payment records all lined up and ready to go.
The more organised your records, the smoother the process will be. Think of it like a checklist. If HMRC requests any information, you’ll be able to provide it quickly, rather than getting bogged down in endless back and forths. This small step can save you a lot of time in the long run.
Matching CIS Suffered to Payroll/Books
It is crucial to match the CIS suffered (the amount of tax that has been deducted) with your payroll and books. If your books do not align with the amount of CIS tax that’s been deducted from you, it can delay your refund, as HMRC will need to investigate any discrepancies.
To make sure everything is in order, take the time to go through your payroll and accounting records carefully. If you’re unsure about how to reconcile everything, now might be a good time to consult a professional accountant. The key is to ensure that all the numbers line up before you submit your claim.
Timing is Key: When to File Your Refund Claim
Timing your refund claim is just as important as having the right paperwork. The best time to submit your claim is after your quarterly or monthly payment runs, but not too soon. Filing your refund claim too early might result in an incomplete claim, which can slow things down.
Ensure you know your deadlines and give yourself enough time to double check everything before submitting. A little extra preparation now can mean fewer delays later.
Additional Tactics GPS and Set Aside Options
If you are looking for even more ways to speed up your refund, there are two strategies you might want to consider applying for Gross Payment Status (GPS) and using the set aside option.
What is Gross Payment Status (GPS)?
GPS is a status you can apply for that allows you to receive payments without having tax deducted at source. While this can help reduce the hassle of waiting for refunds. It is not the right option for everyone.
You must be eligible for GPS and it can take some time to get approval. If your business is eligible, it can certainly make things easy. But before you apply, consider whether the extra paperwork and waiting time are worth it for you.
Set Aside Strategy
Another option is set aside. Where you set aside part of your refund to speed up the processing of the remaining amount. This strategy can be helpful if you need some cash quickly. But you are willing to wait a bit longer for the full refund. It is an approach that works for some. But not everyone.
If you are not sure about whether this tactic is right for your situation. It is always a good idea to speak with an expert who can help you through your options.
When to Seek a Specialist
If you have tried all of the above and you’re still facing long delays, it might be time to consider bringing in a specialist. There are times when HMRC systems can get complicated and seeking advice from someone who knows the ropes can make all the difference.
A tax specialist or accountant can help make sure that your paperwork is perfect, chase up HMRC when needed and even help resolve any issues you might have with the system. IBISS & CO are experts in this field and can assist in getting your CIS refunds processed faster.
How long does it take to get a refund from CIS?
That depends on how your claim is made and whether everything is in order. Generally.

If you file online and your paperwork is complete, you might receive your refund in 2 to 6 weeks.

For paper returns or if HMRC needs extra checks, it can take 8 to 12 weeks or more.

If your claim involves errors, missing documents or large refunds, expect possible delays beyond that.
IBISS & CO,. aim to help you lodge your claim as cleanly as possible so you hit the lower end of the timescale.
How do I claim back my CIS refund?
The process depends on your business structure (sole trader, subcontractor or limited company), but here is the general route:
- Gather your Payment & Deduction Statements (PDS) that your contractor(s) gave you these show how much CIS tax was deducted.
- Make sure you have got all relevant business records (invoices, expenses, bank statements) to support your claim.
- If you are self employed, file your annual Self Assessment tax return, including your CIS deductions.
- If you are a limited company subcontractor, you typically claim via your PAYE/Employer Payment Summary (EPS) route not via Corporation Tax.
- Use the relevant forms for example the form CIS40 if you’ve ceased employment under CIS mid‑year) to claim.
- Submit the claim online if possible it tends to be faster.
We support you through this process making sure everything is prepared properly so the claim goes through swiftly.
How do I contact HMRC about a CIS refund?
If you need to speak to HM Revenue & Customs regarding your CIS refund, you can use the following:

Phone: 0300 200 3210 for CIS general enquiries.

Post You can write to PT Operations, HMRC, BX9 1BX, UK for certain CIS enquiries.

Before calling, make sure your business tax details are up to date and you have your Unique Taxpayer Reference (UTR) or PAYE details handy HMRC may ask security questions.
If you are stuck or your refund has been delayed beyond typical times, IBISS & CO can talk you through how to escalate and follow up.
How much CIS tax will I get back?
There is no set amount for a CIS refund. It depends on your individual situation. Some factors include.
- How much CIS tax has already been deducted from your payments.
- How much tax and National Insurance you are actually liable for, once all your legitimate business expenses are considered.
- The business structure sole trader vs limited company changes how the refund is claimed and what you can offset.
- For many subcontractors, the refund is significant, especially if they have had large deductions and have allowable expenses that reduce their taxable profit.
Conclusion
To wrap things up, the key to surviving cash flow struggles caused by delayed CIS refunds is preparation and action. By making sure your records are accurate, matching your CIS records to your books, and filing your claim on time, you can avoid many of the delays that plague other subcontractors.
If the delays continue, do not hesitate to consider applying for GPS or using the set aside strategy. And if all else fails, seek professional help from experts like IBISS & CO can make all the difference in getting your cash flow back on track.
How IBISS & CO Can Help
We specialise in helping subcontractors navigate the CIS system. If you are tired of waiting for your CIS refunds or need expert advice on how to speed up the process. Get in touch with us today or visit our nearest office. Our team is here to help you manage your cash flow and deal with HMRC delays efficiently.
