Managing cashflow when CIS deductions are taken

If you are a CIS-registered subcontractor without gross payment status, contractors deduct 20% from every payment for your labour. This money goes to HMRC as an advance payment of your tax, but it means you receive significantly less cash in hand.

For many subcontractors, this creates real cashflow challenges. You need to pay for materials, tools, vehicle costs, and living expenses, but you are working with only 80% of what you have earned. Understanding how to manage this is essential for your business.

Understanding the real impact

The 20% deduction applies to the labour element of every payment, not to materials you have paid for directly. But the impact on your available cash can be substantial.

CIS deduction rates 2025/26

Construction Industry Scheme deduction rates applied to subcontractor payments. Contractors must deduct tax at source based on the subcontractor's registration status. Rates are set by HMRC and apply UK-wide.

Registered subcontractor rate: 20%
Unregistered subcontractor rate: 30%
Gross payment status rate: 0% (no deductions)
Effective from: Current tax year 2025/26
Deduction basis: Labour element only (excluding VAT and materials)

When to apply each rate:

20% rate - Subcontractor is registered with HMRC for CIS but does not have gross payment status. This is the standard rate for most registered subcontractors.
30% rate - Subcontractor is not registered with HMRC, or their details cannot be verified. Always verify subcontractors before first payment.
0% rate (gross payment) - Subcontractor has been granted gross payment status by HMRC. They receive full payment and account for tax themselves via Self Assessment or Corporation Tax.

Important: Deductions are calculated on the labour element only. Exclude VAT and any materials the subcontractor has directly paid for.

What is the Construction Industry Scheme

CIS contractor - make deductions and pay subcontractors

Example: monthly cashflow impact

Consider a subcontractor earning 5,000 pounds per month in labour payments (before CIS deductions):

Gross labour earnings: 5,000 pounds per month
CIS deduction (20%): 1,000 pounds per month
Net payment received: 4,000 pounds per month
Annual deductions: 12,000 pounds
Cash shortfall per year: 12,000 pounds unavailable until reclaimed

Over a year, 12,000 pounds of your earnings sits with HMRC rather than in your bank account. You can reclaim this through Self Assessment, but you may wait 12-18 months from when the deduction was made until you receive a refund.

Practical cashflow strategies

Managing cashflow under CIS requires planning. These strategies help subcontractors work effectively with reduced cash in hand.

1. Budget based on net income, not gross

When pricing jobs and planning your finances, always calculate based on what you will actually receive (80% of labour), not what you invoice. If you need 4,000 pounds per month to cover costs, you need to earn at least 5,000 pounds gross in labour.

2. Keep deduction records meticulously

Your contractor must give you a Payment and Deduction Statement within 14 days of each tax month end. These statements are essential for reclaiming your deductions. Keep every statement in a safe place - without them, you cannot prove what was deducted.

3. Separate business and tax money

Consider keeping a separate account for tax purposes. Although 20% is already with HMRC, you may owe additional tax if your profits are higher than expected, or you may be due a refund. Tracking this separately helps you understand your true position.

4. Invoice materials separately where possible

CIS deductions apply only to labour, not to materials you pay for directly. If you buy materials and include them on your invoice with evidence, the contractor deducts 20% only from the labour element. Make sure your invoices clearly separate labour and materials, and keep receipts.

5. Consider your payment terms

If you are waiting 30 days or more for payment, plus the 20% deduction, your cashflow gap widens. Where possible, negotiate shorter payment terms or stage payments for larger jobs. Getting paid in 14 days rather than 30 days significantly improves your cash position.

6. Build a cashflow buffer

Aim to keep 2-3 months of operating costs as a buffer. This helps you manage the gap between earning money and receiving it (after deductions), and protects you during quiet periods.

Reclaiming your deductions

The 20% deducted from your payments is not lost - it is held by HMRC against your tax liability. At year end, you can offset it against what you owe, or claim a refund if deductions exceed your tax bill.

How you reclaim depends on your business structure.

CIS deductions offset and refund process

How subcontractors claim back CIS deductions taken from their payments. The process differs depending on whether you are a sole trader/partnership or a limited company. Sole traders claim through Self Assessment; limited companies offset against PAYE or claim refunds via EPS.

CIS deductions are payments on account of your tax liability - they are not additional tax. Subcontractors can offset deductions against their tax liability or claim a refund if deductions exceed what they owe. The process depends on your business structure.

Sole traders and partnerships

Sole traders and partners in a partnership claim CIS deductions through their annual Self Assessment tax return. The deductions are offset against income tax and National Insurance.

1. Keep all Payment and Deduction Statements (PDS) – Your contractor must give you a PDS within 14 days of the end of each tax month. Keep these safe - they are your evidence of deductions made. The statement shows gross payment, materials deducted, amount of CIS deduction, and net payment.
2. Complete your Self Assessment tax return – Enter your total gross construction income in the self-employment section. Enter total CIS deductions suffered in box 61 of the Self Assessment return (short form) or box 81 (full form).
3. HMRC calculates your tax position – HMRC will calculate your total income tax and Class 2/4 National Insurance liability, then deduct the CIS amounts already withheld from your payments.
4. Pay balance or receive refund – If your CIS deductions are less than your tax due, pay the balance by 31 January. If deductions exceed tax due, HMRC will refund the difference - usually within 4 weeks of processing your return.

Self Assessment deadline: 31 January following tax year end
CIS deductions box (short form): Box 61
CIS deductions box (full form): Box 81
Typical refund time: 4 weeks after return processed

Limited companies

Important: Limited companies claim CIS deductions through payroll (PAYE), not through Corporation Tax returns. You may receive a penalty if you try to claim through Corporation Tax.

1. Keep all Payment and Deduction Statements (PDS) – Your contractor must give you a PDS within 14 days of the end of each tax month. These are your evidence for claiming deductions back. Retain records using form CIS132 or your own system.
2. Submit Full Payment Submission (FPS) as normal – Submit your regular monthly FPS through payroll software for PAYE as usual.
3. Report CIS deductions via Employer Payment Summary (EPS) – Include total CIS deductions suffered (year to date) on your monthly EPS. This tells HMRC to offset the deductions against your PAYE and NI liability.
4. Pay reduced PAYE bill – HMRC deducts your CIS amounts from what you owe in PAYE and employer NI. Pay only the balance by the usual PAYE deadline (22nd monthly or quarterly).
5. Carry forward excess deductions – If CIS deductions exceed your PAYE bill in any month, the excess carries forward to the next month within the same tax year. Submit an EPS showing nothing to pay.
6. Claim year-end refund if needed – If you still have unclaimed CIS deductions at tax year end (5 April), claim a refund from HMRC. You can claim online or by post to: PT Operations, HMRC, BX9 1BX.

EPS submission deadline: 19th of month following tax month
Monthly offset: Against PAYE and employer NI liability
Year-end refund claim: After 5 April for remaining balance
Refund claim method: Online via HMRC service or by post
Administration/liquidation: Write to HMRC for immediate refund

Record keeping

Keep CIS records for at least 3 years after the end of the tax year they relate to. Records should include:

All Payment and Deduction Statements received
Bank statements showing payments received
Invoices issued to contractors
Records of deductions claimed (form CIS132 or equivalent)

Penalty: Failure to produce CIS records when asked by HMRC can result in a fine of up to 3,000 GBP.

CIS subcontractor - pay tax and claim back deductions

Claim CIS deductions refund (limited companies)

When you might get a refund

You are likely to receive a refund of some CIS deductions if:

Your actual profits are lower than expected (for example, you had significant allowable expenses)
You had periods where you earned less or were not working
Your tax liability is lower than 20% of your gross earnings after deducting business expenses
You are in your first year of trading and have startup costs to offset

Example: If your gross labour income is 50,000 pounds and contractors deducted 10,000 pounds in CIS (20%), but your actual tax and NI liability is only 7,500 pounds after business expenses, you receive a 2,500 pound refund.

When you might owe more

You will owe additional tax at year end if:

Your profits are higher than expected (fewer expenses than anticipated)
You have other income sources that push you into a higher tax bracket
You owe Class 2 and Class 4 National Insurance on top of income tax
You have not kept proper records of allowable expenses

Even with 20% already deducted, you may owe more. Set aside money throughout the year to cover potential shortfalls.

File your Self Assessment early

If you expect a refund, do not wait until January to file your return. You can submit your Self Assessment from 6 April each year for the previous tax year. Filing early means:

You receive your refund sooner (potentially in May or June rather than waiting until January)
You know your exact tax position earlier
You have more time to plan if you owe additional tax
You avoid the January deadline rush

Should you apply for gross payment status?

If cashflow is a constant struggle, you might consider applying for gross payment status (GPS). With GPS, you receive 100% of your payments with no deductions - but you must pay all your tax yourself through Self Assessment.

GPS could help if you:

Have consistent work and turnover above 30,000 pounds per year
Maintain excellent tax compliance (file and pay everything on time)
Need cash for materials, equipment, or growing your business
Are disciplined about setting aside money for tax
Have been in business for at least 12 months with a clean compliance record

GPS might not suit you if:

You struggle to save money for future tax bills
Your compliance record has late filings or payments
Your income fluctuates significantly
You prefer the certainty of tax being taken at source

With GPS, you receive more cash now but owe the same tax later. If you cannot reliably set aside 20-30% of your earnings for tax, the deduction system may actually help you by forcing tax discipline.

The GPS eligibility requirements

To qualify for GPS, you must pass three tests:

CIS Gross Payment Status turnover thresholds

Minimum turnover requirements and three eligibility tests for CIS Gross Payment Status, allowing subcontractors to receive payments without deductions.

Gross Payment Status (GPS) allows CIS-registered subcontractors to receive the full payment for construction work without 20% deductions. To qualify, you must pass all three eligibility tests: the business test, the turnover test, and the compliance test.

Sole trader threshold: At least £30,000 net construction turnover in qualifying 12-month period
Partnership threshold: At least £30,000 per partner in net construction turnover
Company threshold (close company): At least £30,000 per relevant person (director or shareholder with control)
Company threshold (widely held): At least £30,000 total net construction turnover
Turnover calculation: Net turnover excluding VAT and cost of materials
Qualifying period: 12 months ending with application date

The three eligibility tests

1. Business test

You carry on a business in the UK that includes construction operations
You are run mainly through a bank account

2. Turnover test

Your net construction turnover meets the minimum threshold for your business type
Turnover is calculated excluding VAT and the cost of materials you paid for directly
Based on the 12 months before your application

3. Compliance test

Filed all Self Assessment tax returns on time
Filed all CIS monthly returns on time (if you are also a contractor)
Filed all VAT returns on time (from April 2024)
Paid all PAYE, National Insurance, CIS deductions, and VAT on time
Complied with Companies Act requirements (if a company)
Supplied any tax information requested by HMRC

Minor compliance failures allowed

HMRC allows the following minor failures without affecting your GPS eligibility:

Up to 3 late CIS returns (no more than 28 days late each)
Up to 3 late VAT returns (no more than 28 days late each)
Up to 3 late payments of £100 or more (no more than 14 days late each, per tax type)
Any late payment under £100
Self Assessment return up to 28 days late

Maintaining GPS

Once granted, HMRC reviews your Gross Payment Status annually. They can cancel your GPS if you no longer meet the compliance test or other requirements. Continue filing all returns and making all tax payments on time to keep your status.

Apply for CIS gross payment status

What happens if you lose GPS

If you have GPS and lose it (through compliance failures), the cashflow impact is immediate and significant. You go from receiving 100% of payments to receiving 80% overnight. This can cause serious business difficulties.

CIS GPS cancellation vs revocation

The critical distinction between GPS cancellation (1 year reapplication wait) and GPS revocation (5 year reapplication wait) under the Construction Industry Scheme, including when each applies and the appeals process.

GPS withdrawal has two distinct forms with very different consequences. Understanding the difference is essential for managing your business's cash flow and compliance strategy.

Cancellation occurs when you fail to meet the ongoing compliance requirements. Revocation is reserved for more serious matters such as fraud, providing false information, or persistent non-compliance.

GPS cancellation: 1 year wait before reapplying (typical compliance failures)
GPS revocation: 5 years wait before reapplying (serious failures or fraud)
Notice period: 90 days written notice before cancellation takes effect
Appeal deadline: 30 days from decision to request a review
Immediate effect: Revocation can take immediate effect in cases of fraud

When GPS is cancelled (1 year wait)

HMRC will cancel your GPS if you fail the annual compliance test. This typically happens when you have:

Filed Self Assessment, CIS, or VAT returns late (beyond the permitted minor failures)
Failed to pay PAYE, National Insurance, CIS deductions, or VAT on time
Outstanding tax debts without a Time to Pay arrangement
Failed to supply information requested by HMRC
Failed to meet Companies Act requirements (for limited companies)

After cancellation, you must wait 12 months before you can reapply for GPS. During this period, you revert to net payment status (20% deductions).

When GPS is revoked (5 year wait)

HMRC will revoke your GPS for more serious matters:

Providing false or misleading information when applying for GPS
Tax fraud or deliberate non-compliance
Persistent compliance failures despite previous warnings
Failure to notify HMRC of relevant changes to your business
Operating as a contractor for fraudulent subcontractors (from April 2026)

After revocation, you must wait 5 years before you can reapply. This makes revocation far more serious than cancellation.

The appeals process

If HMRC decides to cancel or revoke your GPS:

Step 1: You receive a written notice explaining the decision and reasons
Step 2: You have 30 days to request a review by a different HMRC officer
Step 3: If still dissatisfied, you can appeal to the First-tier Tribunal (Tax Chamber)
Step 4: Tribunal appeals must be made within 30 days of the review decision

During the appeal process, your GPS remains in force until a final decision is made (unless the decision was for fraud, which can take immediate effect).

Cancellation trigger: Failing the compliance test at annual review
Revocation trigger: Fraud, false information, or persistent serious non-compliance
Review request deadline: 30 days from HMRC decision
Tribunal appeal deadline: 30 days from review decision
GPS during appeal: Remains in force until final decision (except fraud cases)

What you must do as a CIS subcontractor - Gross payment status

Practical steps to take now

Check your records - Gather all your Payment and Deduction Statements. If any are missing, request them from your contractors.
Calculate your position - Add up your CIS deductions for the year. Compare this to your estimated tax liability to see if you are likely to get a refund or owe more.
File early if due a refund - Do not wait until January. File your Self Assessment as soon as the tax year ends (after 6 April) to get your money back sooner.
Review your pricing - Make sure your job quotes account for the 20% deduction. You need to earn more gross to achieve your target net income.
Consider GPS - If you meet the turnover threshold and have a clean compliance record, applying for GPS could significantly improve your cashflow.

SOLE TRADER Requirement

As a sole trader, your CIS deductions offset against your personal income tax and National Insurance. Key points:

File your Self Assessment early to reclaim deductions faster
Keep personal and business finances separate
Your tax bill includes Class 2 and Class 4 NI, so deductions may not cover everything
Consider using accounting software to track deductions in real time

Comparison to other structures:

Sole traders reclaim through Self Assessment (31 January deadline). File early to get refunds faster.

LIMITED COMPANY Requirement

Limited companies have an advantage - you can offset CIS deductions monthly against your PAYE liability rather than waiting for year end:

Report CIS deductions on your monthly Employer Payment Summary (EPS)
HMRC offsets deductions against your PAYE and employer NI each month
This gives you faster access to the cash compared to sole traders
Do NOT try to claim through Corporation Tax - this is wrong and can result in penalties

Comparison to other structures:

Limited companies can offset CIS deductions monthly against PAYE, giving faster cashflow recovery than sole traders.

Related guides

Apply for CIS gross payment status - How to apply if you decide GPS is right for you
Claim a refund for CIS deductions - Detailed process for reclaiming deductions
File your Self Assessment tax return - Step-by-step guide to filing
Keep your gross payment status - How to maintain GPS once granted

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Managing cashflow when CIS deductions are taken

Understanding the real impact

Example: monthly cashflow impact

Practical cashflow strategies

1. Budget based on net income, not gross

2. Keep deduction records meticulously

3. Separate business and tax money

4. Invoice materials separately where possible

5. Consider your payment terms

6. Build a cashflow buffer

Reclaiming your deductions

When you might get a refund

When you might owe more

File your Self Assessment early

Should you apply for gross payment status?

GPS could help if you:

GPS might not suit you if:

The GPS eligibility requirements

What happens if you lose GPS

Practical steps to take now

Sole trader cashflow tips

Comparison to other structures:

Limited company cashflow tips

Comparison to other structures:

Related guides

Compliance Assistant

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Understanding the real impact

Example: monthly cashflow impact

Practical cashflow strategies

1. Budget based on net income, not gross

2. Keep deduction records meticulously

3. Separate business and tax money

4. Invoice materials separately where possible

5. Consider your payment terms

6. Build a cashflow buffer

Reclaiming your deductions

When you might get a refund

When you might owe more

File your Self Assessment early

Should you apply for gross payment status?

GPS could help if you:

GPS might not suit you if:

The GPS eligibility requirements

What happens if you lose GPS

Practical steps to take now

Sole trader cashflow tips

Comparison to other structures:

Limited company cashflow tips

Comparison to other structures:

Related guides

Related guides in Self Assessment

Business Context Testing

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