How Long Does a CIS Refund Take? Timeline and Delays
How long does a CIS refund take? HMRC typically pays clean Self Assessment claims within 2 weeks, but security checks and offsets can extend the timeline.
Key Actions
- File your Self Assessment return as early in the tax year as possible — refunds clear faster outside the January peak
- Double-check the bank details on your return before submitting — wrong details trigger cheque issuance and weeks of delay
- Sign in to your HMRC online account or the HMRC app to track repayment status
- If you're owed money for the current tax year and need it early, ask whether form CIS40 (sole trader) or CIS41 (partnership) fits your situation
- Allow up to 4 weeks before chasing HMRC, then check the live "Where's my reply" tool for current waiting times
A CIS refund typically takes around 2 weeks to reach your bank account once HMRC has processed your Self Assessment return, but the actual timeline depends on whether the return is flagged for a security check, whether you have any other tax due, and how busy HMRC's repayments team is. This guide covers the 2025/26 tax year and sets out what to expect, what can hold the money up, and how to track your refund without guessing.
It's written mainly for sole-trader CIS subcontractors who reclaim through Self Assessment. There's a separate section near the end for limited-company subcontractors, who follow a different process via PAYE/CIS offset. If you haven't filed yet, our walkthrough on claiming back CIS deductions covers the steps that come before the refund stage.
The Typical CIS Refund Timeline (Self Assessment Route)
For sole traders and partners, HMRC's published service standard is to issue Self Assessment refunds within 2 weeks of receiving an online repayment request. You're advised to allow up to 4 weeks before chasing, because pre-payment security checks can add time.
Here's the practical sequence of events:
| Stage | Typical time | What's happening |
|---|---|---|
| File your return online | Same day | HMRC receives it instantly |
| HMRC processes the return | 1–3 working days | Your tax position is calculated; any refund flagged |
| Risk screening | Up to 2 weeks | The repayment is either authorised automatically or held for a security check |
| Repayment authorised | Within 3 days of clearance | HMRC's internal system issues the BACS instruction |
| Money in your account | Within 5 days of issue | BACS transfer reaches your bank (a cheque can take longer if bank details are missing or wrong) |
| Total — clean claim | Around 2 weeks | Online claim, no security check, valid bank details |
| Total — security check | Often 4–6 weeks or more | Manual review by HMRC's compliance team |
The 2-week figure is HMRC's stated target for straightforward online claims. The 4-week "allow before chasing" point is also published by HMRC. Anything beyond that suggests the return has been flagged for review.
Why Some CIS Refunds Take Longer
Several common situations push a refund past the 2-week mark.
Security and Compliance Checks
HMRC screens repayments before paying them out. If your claim looks unusual — first-time filer, large refund relative to income, expenses outside the typical range, or new bank details — it can be sent to HMRC's Direct Tax Repayment Credibility team for manual review.
A security-check letter typically asks for:
- Three forms of identity
- Recent bank statements
- CIS Payment and Deduction Statements
- Evidence of any employment income
- A short repayment questionnaire and form R38
You usually have 30 days to respond. If you don't reply, HMRC can close the claim and even remove you from Self Assessment. GOV.UK doesn't publish a fixed time for how long these checks last; industry experience puts it at around 4–6 weeks once you've replied.
January Peak Season
HMRC's repayments queue swells in late January as millions of returns land near the filing deadline. Returns submitted between mid-January and mid-February can take longer than the published 2-week target. There's no published quantified figure — the live Where's my reply tool shows current waiting times and is updated weekly.
Filing in April, May, or June tends to give the fastest refunds.
Offsets Against Other Tax Due
HMRC generally won't pay out a refund if you have other tax due within the next 45 days — for example, a payment on account due 31 July (see when CIS deductions are due for the key dates). The credit is applied to that liability instead. You'll see this on your account as a reduced repayment with a note about the offset.
This isn't a delay so much as a redirection: the money lands inside HMRC rather than your bank.
Bank Details or Identity Issues
If the bank details on your return are missing, mismatched, or fail HMRC's verification, the refund goes out by cheque instead. Cheques add several weeks. It's worth double-checking the sort code and account number before submitting.
Repayments Under £10
HMRC doesn't issue refunds under £10 automatically. They sit on your Self Assessment account and offset against future liabilities, or you can request payment manually.
In-Year CIS Refunds: Form CIS40 and CIS41
You don't necessarily have to wait for the end of the tax year. If your accounting period ending in the current tax year has finished and you've clearly overpaid, you can claim an in-year refund using:
- Form CIS40 — for sole traders
- Form CIS41 — for partnerships (all partners must sign)
This route is set out in regulation 17 of the CIS regulations (SI 2005/2045). HMRC won't repay until all of the tax year's CIS profits and deductions have been reported, even if the year hasn't ended.
Important caveats:
- There's no "repayment supplement" (interest) on in-year refunds.
- There's no formal appeal route if HMRC refuses.
- GOV.UK doesn't publish a service-level processing time for CIS40/CIS41 specifically. Expect at least as long as a normal Self Assessment refund, possibly longer because the form route is manual.
If you can wait until the tax year ends, the Self Assessment route is usually simpler and the timing is roughly the same.
Limited Company CIS Refunds (EPS Route)
Limited companies don't use Self Assessment. They offset CIS deductions month by month against PAYE liabilities through the Employer Payment Summary (EPS):
- Each month, your company reports CIS deductions suffered on the EPS.
- HMRC subtracts those deductions from your PAYE bill.
- If deductions exceed PAYE in a given month, the surplus carries forward to the next month within the same tax year.
You can only claim a refund of the net surplus after the tax year ends (after 5 April), and only once all PAYE, CIS, and Corporation Tax returns for the year have been submitted. Claims are made online through Government Gateway or in writing to:
PT Operations North East England, HMRC, BX9 1BX (mark the envelope "CIS")
Processing for limited-company claims is typically slower than sole-trader Self Assessment refunds — HMRC commonly cites several weeks to a few months, especially for first-time claims or where they want to verify the figures against contractor records.
Companies in liquidation or administration can sometimes get in-year repayments; this is one of the few common exceptions.
How to Track Your CIS Refund
HMRC doesn't currently offer a dedicated "where's my refund" tracker. You have three practical options:
- HMRC online account — sign in at GOV.UK and look at your Self Assessment statement. A pending repayment shows as "issued" or "authorised" once it's cleared internal checks.
- The HMRC app — mirrors the online account and is the quickest way to check on your phone.
- The "Where's my reply" tool — GOV.UK publishes current waiting times for Self Assessment repayments. It's updated weekly and is the most reliable signal of whether you're inside or outside the normal window.
HMRC generally won't release a refund through webchat or by phone — the typical triggers are an authorised return on file and the underlying risk checks clearing.
What to Do If Your Refund Is Delayed
If you're past the 4-week mark with no movement, work through this order:
- Check the "Where's my reply" tool — confirm whether you're inside the current published waiting time.
- Look in your online account — has HMRC posted a letter asking for ID or evidence? Pre-payment compliance letters often arrive there before paper post.
- Check your contractor's monthly returns — if a contractor under-reported your deductions, HMRC's figures may not match yours. Ask the contractor to file a correction.
- Verify your bank details — make sure the account number and sort code on your return are correct and the account is in your name.
- Call the Self Assessment helpline — 0300 200 3310, Monday to Friday 8am to 6pm. Have your UTR and National Insurance number to hand.
If HMRC has flagged the return for a security check and you've responded fully, there's usually nothing more to do but wait. Chasing repeatedly tends not to speed up the queue.
Frequently Asked Questions
How long does it take HMRC to refund CIS deductions?
HMRC's stated target is to issue Self Assessment refunds within 2 weeks of receiving an online claim, with up to 4 weeks recommended before chasing. Clean claims filed outside the January peak often clear faster than 2 weeks. Returns flagged for a security check typically take 4–6 weeks longer.
Can I get a CIS refund before the end of the tax year?
Yes, in some cases. Sole traders can use form CIS40 and partnerships can use form CIS41 to claim an in-year refund once the relevant accounting period has ended and all CIS income and deductions for the year so far have been reported. There's no interest paid on in-year refunds, and HMRC doesn't publish a fixed processing time for these forms.
Why is my CIS refund taking so long?
The most common reasons are: HMRC has flagged your return for a security check, the January peak has stretched processing times, your bank details didn't match (so they've issued a cheque), or you have a payment on account due within 45 days and HMRC has used the refund to offset it. Check the live "Where's my reply" tool and your HMRC online account before assuming there's a problem.
How do I check the status of my CIS refund?
Sign in to your HMRC online account or open the HMRC app — your Self Assessment statement shows whether a repayment has been authorised or is still pending. There is no separate refund tracker, and webchat or phone agents can't release a refund early. The "Where's my reply" page on GOV.UK gives the current published waiting time for repayments.
This guide is for informational purposes only and does not constitute tax, legal, or financial advice. Tax rules change frequently. Always verify current requirements on GOV.UK or consult a qualified accountant for your specific situation.