Free diagnostic
Free CIS deduction calculator for contractors. Split labour/materials, apply 20%/30%/gross, catch over-deduction errors and preview a compliant statement. No signup.
Instant result
Calculate the labour-only deduction before issuing a statement. VAT is not included in this quick check. Data stays in this browser session; nothing is uploaded.
When to use it
Start with the free diagnostic at /cis-deduction-statements/diagnostic/. It gives you a concrete result first, then points to the paid product only if the next step is useful.
UK construction contractors and bookkeepers turn a month of CIS payment data into reviewable deduction calculations, payment-and-deduction statements using HMRC-listed fields, a CIS300 review summary, and a sign-off checklist without uploading subcontractor data. Publish the free diagnostic, list the product in relevant directories, then seed one value-first post.
What this free check is built to clarify
The diagnostic turns this search into a concrete planning result, then points to the next public page or paid kit only when there is a useful follow-up.
The diagnostic turns this search into a concrete planning result, then points to the next public page or paid kit only when there is a useful follow-up.
The diagnostic turns this search into a concrete planning result, then points to the next public page or paid kit only when there is a useful follow-up.
The diagnostic turns this search into a concrete planning result, then points to the next public page or paid kit only when there is a useful follow-up.
The diagnostic turns this search into a concrete planning result, then points to the next public page or paid kit only when there is a useful follow-up.
FAQ
Yes. This page routes to the live The CIS Monthly Reconciler diagnostic, which gives a practical browser-based check before you decide whether the paid The CIS Monthly Reconciler kit is worth buying. Treat the result as a planning aid, not professional advice.
Yes. This page routes to the live The CIS Monthly Reconciler diagnostic, which gives a practical browser-based check before you decide whether the paid The CIS Monthly Reconciler kit is worth buying. Treat the result as a planning aid, not professional advice.
Yes. This page routes to the live The CIS Monthly Reconciler diagnostic, which gives a practical browser-based check before you decide whether the paid The CIS Monthly Reconciler kit is worth buying. Treat the result as a planning aid, not professional advice.
Yes. This page routes to the live The CIS Monthly Reconciler diagnostic, which gives a practical browser-based check before you decide whether the paid The CIS Monthly Reconciler kit is worth buying. Treat the result as a planning aid, not professional advice.
Yes. This page routes to the live The CIS Monthly Reconciler diagnostic, which gives a practical browser-based check before you decide whether the paid The CIS Monthly Reconciler kit is worth buying. Treat the result as a planning aid, not professional advice.
Yes. This page routes to the live The CIS Monthly Reconciler diagnostic, which gives a practical browser-based check before you decide whether the paid The CIS Monthly Reconciler kit is worth buying. Treat the result as a planning aid, not professional advice.
Next step
The paid product page explains scope, limits, refund terms, and checkout before purchase.