£800
Only the bank receipt
Net pay entered as turnover understates your income. Your bank feed needs to be matched with your contractor statement.

Built for construction • CIS records, made simple
CIS deductions do not automatically exempt you from MTD. For 2026/27, the requirement generally applies where your 2024/25 qualifying income exceeded £50,000 and you are not exempt. Avona helps keep your construction records organised for £15 a month.
£15/month + VAT · For self-employed construction subcontractors
Your work. Properly recorded.
A clear view of your pay.The big CIS recording mistake
You invoice £1,000 for site labour. Your contractor deducts £200 under CIS and pays you £800. Recording only the bank receipt leaves £200 of turnover out of your records.
£800
Net pay entered as turnover understates your income. Your bank feed needs to be matched with your contractor statement.
£1,000
Record £1,000 of earnings and track the £200 CIS deduction separately. Match both amounts back to the £800 you received.
Example: 20% deduction, labour only, no VAT. HMRC: reporting gross pay and deductions. Check your MTD start date.
Do you have to pay tax every quarter?
Keep the reporting separate from the payment. Your quarterly update tells HMRC about your business; your CIS deductions are advance payments towards your tax and National Insurance.
Quarterly updates report income and expense totals. They can generate an estimated tax bill, but sending an update does not create a quarterly payment deadline.
How quarterly updates workKeep your contractor’s payment and deduction statements. Report gross income and CIS deductions separately; HMRC offsets the deductions against your final bill.
How deductions are creditedIf deductions exceed your final liability, you may receive a refund. If they fall short, you still owe the balance. Allowable expenses and your wider tax position affect the result.
Read HMRC’s refund guidanceExisting payment obligations, including any payments on account, still apply. Read about payments on account.
Materials and labour, kept separate
Eligible materials you paid for directly are excluded from the CIS deduction calculation at cost. Keep evidence and show them separately; a materials markup is not excluded in the same way.
Avona helps you keep materials receipts alongside your labour earnings, so your records tell the whole story.
Read HMRC’s deduction rulesNo VAT. Assumes eligible materials and a 20% deduction rate. HMRC may specify 30%, or 0% with gross payment status.
Your construction expense checklist
Keep evidence for business costs and exclude private use. These are common categories to review.
Power tools, hand tools and replacements used for work. The treatment of equipment can depend on your accounting method.
Steel-toe boots, high-visibility gear and other protective clothing. Everyday clothes are not normally allowable.
Eligible leasing, fuel, insurance and servicing costs for business use. Avoid claiming actual vehicle costs again if you use mileage rates.
Materials and supplies bought for jobs. Keep receipts and separate any personal purchases.
Business insurance and relevant trade or professional subscriptions, where allowable.
Business accountancy fees and software subscriptions, including the business use of Avona.
On the tools or on the go
Self-service Avona app
£15 /month + VAT
Snap receipts from your van, log contractor invoices, track deductions and file quarterly updates in taps.
Less paperwork. More time on site.
Keep your earnings, deductions and expenses organised with Avona for £15 a month.
Start for FREE £15/month + VAT