Invoicing for Contractors
How contractors use invoicing for project-based work: simple client billing, estimates, deposits, milestone invoices, and ties to payroll and accounting.
Last updated: March 8, 2026
Contractors need straightforward client billing: send an estimate, do the work, then send an invoice—or bill by milestone or deposit. Invoicing software keeps estimates, invoices, and payment status in one place and often supports project-based line items and payment terms that fit job work.
Tools like FreshBooks and HoneyBook are built for this workflow. For the accounting and payroll side of running a contracting business, see our accounting for contractors and payroll for contractors guides. Our invoicing hub has more comparisons and reviews.
Contractor Invoicing Workflow
From estimate to payment.
- Estimates and proposals — Quote the job; convert to an invoice when the client approves.
- Deposits and milestones — Invoice for upfront deposit or progress payments; final invoice when the job is complete.
- Service calls or one-off jobs — One invoice per call or job; track payment by client.
- Ties to payroll and accounting — Income from invoices feeds into your books; payroll handles employee pay if you have a team.
FAQs
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