Use form CIS40 if you're in business on your own and want to claim repayment of subcontractor deductions during the current tax year.
If you’re a self-employed subcontractor use form CIS40 to make a claim for repayment of pay deductions in the current tax year. Use your tax return instead of this form if you are making your claim after the end of the tax year.
Before you start
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Related forms and guidance
CIS41: partner’s repayment claim
Use form CIS41 if you are in a partnership to claim repayment of subcontractor deductions during the current tax year.