VMK Accountants Limited: Business Advisors & Tax Consultant
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    CIS · Construction Industry Scheme

    CIS accountant in Harrow for contractors and subcontractors

    Whether you pay subcontractors or are paid as one, the Construction Industry Scheme is a minefield of monthly returns, verifications and deductions. We take the whole thing off your hands: monthly CIS300s filed on time, every subcontractor verified, and CIS suffered reclaimed in full against your tax bill.

    Monthly CIS300 returns filed Subcontractor verification with HMRC CIS suffered reclaim Gross payment status applications From on request / month

    CIS for contractors (you pay subbies)

    Every month we collect your subcontractor invoices, verify each one with HMRC (20% standard, 30% unverified or 0% gross), prepare and file the CIS300, issue payment & deduction statements to each subbie, and remind you of the 22nd payment deadline. Late filing = £100 minimum penalty per return, rising fast.

    CIS for subcontractors (you get paid net)

    If you trade as a sole trader the 20% deduction is reclaimed through your self-assessment SA100 - often producing a £3,000-£10,000 refund. If you trade through a Ltd the deduction is offset against PAYE/NIC, with any excess refunded by HMRC after year-end. We handle both routes and chase HMRC if refunds drift past 6 weeks.

    Going for gross payment status

    Gross payment status (0% deduction) transforms cashflow. To qualify you need a clean compliance record, the business test, and turnover above £30k (sole trader) / £30k per director (Ltd) / £100k total (Ltd). We prepare the application, fix any compliance gaps first, and respond to HMRC's 12-monthly Tax Treatment Qualification Test reviews.

    What's included

    Contractor monthly cycle

    • Subcontractor verification
    • Monthly CIS300 to HMRC
    • Payment & deduction statements
    • Nil returns when no payments
    • Year-end reconciliation

    Subcontractor support

    • CIS reclaim via SA100
    • Ltd company PAYE offset
    • Expense optimisation
    • Mileage & tools claims
    • Refund chasing

    Compliance & status

    • Gross payment applications
    • TTQT defence
    • CIS register clean-ups
    • Mixed status (employed vs self)
    • IR35 vs CIS reviews

    Frequently asked questions

    How much does CIS cost?+

    Contractor CIS from on request/month for up to 10 subcontractors. Subcontractor SA100 with CIS reclaim from on request. Ltd company CIS bundled into our monthly limited company package.

    What's the penalty for late CIS returns?+

    £100 at day 1, £200 at 2 months, £300 or 5% of deductions at 6 months, and another £300 / 5% at 12 months. Per return. Per month late.

    Can you reclaim CIS for previous years?+

    Yes, up to 4 prior tax years for sole traders via amended self-assessments. For Ltd companies we can correct prior PAYE/NIC offsets.

    VMK Accountants Ltd

    17 Hunters Grove, Kenton, Harrow HA3 9AB

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