Invoicing Software for Contractors

In the US, the Bureau of Labor Statistics' Occupational Outlook Handbook (page last modified August 27, 2026) says "Construction managers plan, coordinate, budget, and supervise construction projects from start to finish."

For a contractor, that work turns into an estimate before the job and an invoice once it's done or as it progresses: materials, your own labor, permits and any extra work the client approves on site. Lien, licensing and sales tax rules depend on your state, so ask your accountant or a lawyer before you set your terms.

Billed's help center says, of estimates: "Your client can approve it to proceed further. Later, you can also convert the estimate into an invoice." Billed's features page says "Yes your clients can approve or reject your estimates online." and "Convert your estimate to invoice with a single click after getting approval from your client."

For the materials and services you bill again and again, Billed's invoice software page says you can "save the products and services you sell so you can pull them into an invoice instead of retyping them." Billed's help center says "This tax will be automatically added to the invoices and estimates where you use this item or service."

On site, Billed's mobile app page says "Billed for iOS and Android syncs with the web dashboard in real time, so you can invoice the moment a job is done."

These are sample figures, and sales tax isn't included. A contractor estimates a bathroom remodel: materials $2,400.00, labor 32 hours at $65.00 = $2,080.00, and a permit fee of $150.00. $2,400.00 + $2,080.00 + $150.00 = $4,630.00.

The client approves the estimate online. During the job the client approves one extra item, a $300.00 replacement of a damaged subfloor section. The contractor then converts the estimate into an invoice. Billed's help article on converting estimates says "You can add and edit any information here.", so the extra goes on as its own line: $4,630.00 + $300.00 = $4,930.00.

The contractor and client have agreed on two equal installments, so the invoice gets two scheduled payments of $2,465.00. Billed's help center says "Add a percentage or flat amount and the due date for each installment." $2,465.00 + $2,465.00 = $4,930.00, which matches the invoice total, as Billed's help center requires.

Billed's invoice software page says "Connect your Stripe account and every invoice you send gets a pay button, so clients can pay by card." and "Connect PayPal to add a PayPal option as well." It also says "When a client pays by check or cash, record it as an offline payment so all your income is in one place."

For installments, Billed's help center says "You can let your clients pay the amount in installments through this option." and "However, the sum of all installments should be equal to the total balance of the invoice." It also says "You can set a schedule of payment reminders before and after the invoice's due date."

Billed's expenses page says "An expense in Billed records who you paid, when, how much and which category it belongs to, with the receipt attached to the same entry." Recording each material purchase that way keeps who you paid, when, how much, its category and its receipt together.