# Fieldpaid > Fieldpaid is a mobile-first invoicing and profit tracking app for trade contractors who use QuickBooks — build quotes in under 60 seconds, send invoices in one tap, auto-chase payment, and see real job margin after every job. ## Docs - [Homepage](https://fieldpaid.com): Fieldpaid overview — QuickBooks-connected quoting, one-tap invoicing, automated payment reminders, and job profit tracking for electricians, HVAC, plumbers, and security installers. - [Free Job Profit Calculator](https://fieldpaid.com/free-tools/job-profit-calculator): Free browser-based tool for trade contractors to calculate gross profit, margin percentage, and markup on any job. No signup required. - [Free Invoice Generator](https://fieldpaid.com/free-tools/invoice-generator): Free client-side invoice generator for contractors — add line items, calculate totals, and download as PDF. Nothing stored, no account needed. ## Free Tools - [Electrician Invoice Template](https://fieldpaid.com/free-tools/invoice-template/electrician): Free printable invoice template for electricians with pre-filled line items for common electrical work — panels, outlets, breakers, GFCI, and labour. - [HVAC Invoice Template](https://fieldpaid.com/free-tools/invoice-template/hvac): Free HVAC invoice template with pre-filled line items for common heating and cooling jobs — service calls, refrigerant, filters, thermostats, and labour. - [Plumber Invoice Template](https://fieldpaid.com/free-tools/invoice-template/plumber): Free plumbing invoice template with pre-filled line items for common plumbing jobs — fixtures, pipe fittings, water heaters, drain clearing, and labour. - [Security Installer Invoice Template](https://fieldpaid.com/free-tools/invoice-template/security-installer): Free security and low-voltage invoice template with pre-filled line items for cameras, NVRs, access control, alarm panels, and labour. ## Blog - [Why Contractors Lose Money on Jobs](https://fieldpaid.com/blog/why-contractors-lose-money-on-jobs): Explains the four profit leaks that cause contractors to lose money on jobs they think are profitable — scope creep, unbilled materials, underestimated hours, and slow collections. - [Using QuickBooks on a Job Site](https://fieldpaid.com/blog/quickbooks-on-a-job-site): Honest assessment of QuickBooks mobile on a job site — what works, what doesn't, and how trade contractors actually use it in the field versus what Intuit shows in demos. - [How to Get Paid Faster as a Contractor](https://fieldpaid.com/blog/how-to-get-paid-faster-contractor): Payment speed tactics for trade contractors including invoice timing, payment link friction, follow-up sequencing, and a copy-paste 3-message reminder template. ## Comparisons - [Fieldpaid vs Jobber](https://fieldpaid.com/compare/jobber): Side-by-side comparison of Fieldpaid and Jobber for trade contractors — features, pricing, QuickBooks integration depth, and which type of contractor each is built for. - [Fieldpaid vs Housecall Pro](https://fieldpaid.com/compare/housecall-pro): Side-by-side comparison of Fieldpaid and Housecall Pro — dispatch features, QuickBooks sync, mobile invoicing, and fit for solo vs multi-crew contractors. - [Fieldpaid vs Knowify](https://fieldpaid.com/compare/knowify): Side-by-side comparison of Fieldpaid and Knowify for contractors who need QuickBooks integration and mobile invoicing without complex project management overhead. - [Fieldpaid vs Joist](https://fieldpaid.com/compare/joist): Side-by-side comparison of Fieldpaid and Joist — quoting speed, QuickBooks sync, payment chasing, and profit tracking for experienced trade contractors. ## Key Facts - Mobile-first app for experienced trade contractors (electricians, HVAC technicians, plumbers, security installers) - Requires QuickBooks Online — reads the contractor's existing item list for pricing, pushes completed invoices back automatically - Core workflow: job description → QB item lookup → quote → one-tap invoice → auto reminders → payment → profit reveal - Automated payment reminder sequence: day 7, day 14, and day 30 if unpaid - Profit reveal compares real margin vs quoted margin after every job — shows which job types actually make money - Industry: Field service management / contractor invoicing SaaS ## Contact - Website: https://fieldpaid.com - Legal: https://fieldpaid.com/legal/privacy