CIS Tax Refund Spreadsheet UK 2025-26 | Deduction Tracker

Log every CIS payment, check every deduction against your rate, chase every missing statement — and watch a labelled estimate of your likely refund build all year.

CIS Sorted is a deduction tracker and refund estimator for UK self-employed (sole trader) construction subcontractors in the 2025-26 tax year (return due online 31 January 2027).

You get:

• A 9-tab Excel/Google Sheets workbook (no macros): every payment split labour vs materials — because CIS applies to labour only — with the contractor's deduction automatically checked against your 20%/30%/gross rate and red-flagged when it doesn't match.

• A Statement Chaser: all 12 tax months, each payment and deduction statement's legal due date (14 days after the tax month end), and exactly which ones you're still owed — your proof of every pound deducted. Gross-status aware: at 0% it shows "n/a" instead of chasing statements that legally don't exist.

• A Refund Estimator: CIS deducted vs estimated tax + NI due — Personal Allowance taper, all six 2025-26 Scottish bands on one toggle, Class 4/voluntary Class 2 NI, PAYE stacking — headlined by your ESTIMATED overpayment so far, plus a green copy-to-return block (turnover box 9/15, expenses box 20/31, CIS box 38/81, verified against the 2025-26 SA103 forms).

• A Health Check panel reconciling both logs to £0.00 unmatched, counting deduction discrepancies and missing statements, with a refund-ready checklist.

• A 2,700-word Refund Guide (print-ready PDF): how deductions work, why subcontractors usually overpay, materials vs labour, statement rights, registering, filing, gross payment status — every fact cited to gov.uk, checked 26 August 2026, with the claim-by-claim source table included. Plus Google Sheets import instructions.

Straight answers on what it isn't: It does not file with HMRC — you copy the verified figures into HMRC's free online return yourself. Every tax and refund figure is an ESTIMATE (student loans, CGT, savings/dividends, HICBC, VAT and capital allowances are out of scope — the product lists the exact exclusions). Sole traders only: limited companies reclaim CIS through payroll (EPS), a different route.

Filing time? SA Sorted (£14) maps these totals to every 2025-26 SA103 box: britdesign.gumroad.com/l/txhutk

Built with AI assistance and human-directed research; every CIS and tax fact is checked against the cited official gov.uk source — the source table ships in your download.

Not tax, accounting, or financial advice. Estimates only — verify against your HMRC return. Support: mybritdesign@gmail.com