For CIS sole tradersEngland · Wales · NITax year 2026/27
CISTax & Refund Tracker
Is it for me?

Free while it's early · for the 2026/27 CIS tax year

Had 20% stopped under CIS? Check what you're likely owed before you file.

CIS stands for the Construction Industry Scheme. Under it, contractors take tax off your labour before your expenses are counted. This tracker checks every statement, catches missing or wrong deductions, and brings your income, costs and likely tax position together.

Download it freeFree, instant download — no sign-up. If it saves you time, you can pay what you like.
  • Free to download
  • No sign-up
  • Works in Excel & Google Sheets
  • Pay only if it helps
2026/27CIS statement check
3 checked
ContractorLabourStoppedCheck
H&J Build£2,840£568✓ 20%
Northsite£1,950£585! 30%
T&S Ground£3,220£644✓ 20%
CIS stopped so far£1,797
Needs checking1 statement

Example figures only — not a refund promise.

The short version

Your contractor might stop £2,000 from £10,000 of labour. But HMRC still needs to know your actual profit after tools, mileage and other allowable costs.

Get the statements and expenses right, and you can see whether you've probably overpaid — or whether there may be tax left to pay. The tracker does the adding up and flags the gaps.

What it actually does

Four jobs. One tidy set of figures.

01

Checks every CIS statement

Log what the contractor paid you and what they stopped. The sheet flags missing statements, odd figures and deductions at the wrong rate.

02

Shows where you may stand

See a running estimate of a likely refund — or what you may need to pay — before you start the return.

03

Keeps costs in one place

Log allowable business expenses and mileage, with the 2026/27 mileage rates built in.

04

Lines up with the tax return

Your totals are laid out against the relevant SA103 Self Assessment boxes, so you can sense-check what goes where.

Straight answer

Is it for you?

Yes — a good fit

Simple CIS sole-trader work

  • You are a self-employed CIS subcontractor and a sole trader
  • You live in England, Wales or Northern Ireland
  • Self-employment is your only income
  • You use Excel or Google Sheets
No — get proper help

Not built for complex cases

  • You trade through a limited company
  • You live in Scotland
  • You have lots of VAT, other income or a complicated tax position
  • You need tax advice or someone to file the return for you
NO FANCY PROMISES

What you are getting

A spreadsheet that helps you check your own numbers.

It works in Excel and Google Sheets. It does not file anything with HMRC, it is not tax advice, and it cannot promise you a refund. If your position is complicated or you are unsure what you can claim, speak to a qualified tax adviser.

It's free while I'm still improving it — if it helps, pay what you think it's worth. Made by a real person: if something doesn't work or a figure looks off, email me at james@upkurve.com and I'll sort it.

Free to download. Keep the file. Pay what you like.

Get your CIS figures straight — free while it's early.

Download it freeNo catch — the file downloads straight away. If it helped, pay what you like.