Free tools

Calculators & tools for UK contractors

Free utilities for running a contracting business. No sign-up, no email gate, no fluff.

Calculator

CIS Deduction Calculator

Work out subcontractor deductions instantly: registered (20%), unregistered (30%), or gross payment status. Materials handled correctly.

Open the calculator

Calculator

Field Service Savings Calculator

Estimate your annual savings, payback period, and productivity gain from moving your team onto a modern field service platform. Three views, live results.

Calculator

VAT Reverse Charge Calculator

Work out whether the UK construction domestic reverse charge applies, what to put on the invoice, and which VAT return boxes the supplier and customer use.

Calculator

Day Rate Calculator for UK Trades

Work out the hourly and day rate your business actually needs, from your target income, real overheads, and honest billable hours. Trade presets included.

Checker

Making Tax Digital Checker

MTD for Income Tax is live. First quarterly update due 7 August 2026. Check when quarterly digital filing applies to you and get the key dates for your diary.

Check your status

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Practical guides on quoting, billing, scheduling, and compliance.

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Field Forge: AI Field Service Management for UK Contractors

Field Forge gives UK contractors and trade teams AI-powered quoting, job scheduling, real-time cost tracking, and invoicing in one platform. It replaces the spreadsheets and disconnected tools your team is using today. 30-day free trial, no credit card required.

Built for these trades

Electrical, mechanical, plumbing, HVAC, refrigeration, building maintenance, facilities management, and general contracting. Sole traders through to teams of 50+.

What you get

AI-powered quoting from plain-English job descriptions (a first draft in about a minute that you check line by line)
Job scheduling and dispatch for field teams
Real-time job cost tracking with margin visibility
Progress invoicing and retention (JCT-style applications for payment)
Smart supplier invoice capture with 3-way purchase order matching
Digital forms and job sheets with on-site signature capture
A customer portal for quote approval, job tracking, and invoices
Live field map and GPS engineer tracking with geolocated clock-in
Time tracking and timesheets that feed job costing and payroll
Training and certification matrix with expiry and renewal tracking
Fast setup with guided CSV data import and duplicate detection
Purchase orders, asset registers, and CSV-imported rate libraries
Invoicing and contract management
Responsive web app, no app-store download required

Explore features

Pricing

Lite £19.99/month (£199/year) for field techs; Full £39/month (£390/year) for office staff. Both tiers include a 30-day free trial. Enterprise pricing on request.

Free tools

CIS Deduction Calculator: UK Construction Industry Scheme deductions for subcontractors
Field Service Savings Calculator: estimate time and money saved by moving off spreadsheets
VAT Reverse Charge Calculator: UK construction services VAT reverse charge
All free tools

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