For self-employed · Sole traders · CIS subbies
Sole traders and CIS subbies under-claim expenses to the tune of hundreds a year. Clok logs mileage at the HMRC rate, tools, receipts, materials — and drops your set aside for HMRC the moment you tap Save.
3 free seats · Cancel anytime · UK-tax built-in

Real screenshot
£464 claimed this year — mileage, tools, training. Set-aside recalculates live.
The self-employed moat
Do them now, all year, with 5-second logging. Fewer receipts lost, less stress in January.
Expenses Hub
Business mileage (HMRC 45p/25p auto-split), materials, tools/PPE, phone, training, subsistence, other. Snap receipts from your phone camera. Everything drops your set-aside in real time.
CIS mode
Registered subbies: 20% (or 30% unregistered) at source. Log materials/plant hire inline on the pay period card — HMRC exempts them from CIS, Clok shows exactly what you save.
Set aside tracker
Every shift you log, Clok annualises your profit and shows the running HMRC bill. When CIS is deducted at source or expenses log, "set aside remaining" drops so you know what to keep back.
HMRC mileage
Simplified Expenses done right. Clok tracks the 10,000-mile threshold across the tax year — cross it mid-year and the rate drops on the next log automatically.
Invoices & payslips
Generate a proper A4 invoice with your details baked in. Payslip PDF shows all deductions + expenses claimed line so your accountant can just plug in the numbers.
Self Assessment prep
End of tax year: one click to export every shift, every expense, every deduction as a clean CSV. Hand it to your accountant, save the £200 spreadsheet fee.

Real screenshot
CIS materials logged inline · Expenses claimed live · Set-aside auto-updates.
Your dashboard
No more digging through Settings mid-week. Log a Screwfix run to your CIS materials directly on the pay period card, tap Expenses to add a training course — everything flows through to your HMRC set-aside instantly.
Mileage + tools + materials + training + subsistence. Attach receipt photos. Set-aside drops instantly.
45p/25p split tracked across the tax year. Log a trip, done — no spreadsheets, no yearly reconciliation.
20% or 30% deducted at source. Materials split out so you're not taxed on kit you bought.
Class 4 NI + Income Tax annualised on every shift. Know exactly what to keep back before January.
Client-ready A4 invoices with your business name, VAT (optional), and payment terms baked in.
UK-hosted, encrypted, no third-party trackers. Your receipts and turnover stay yours.
Set up in 30 seconds. No card required for the free plan. Cancel anytime.
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