Estimate to Invoice: From an Approved Estimate to an Invoice
How to turn an estimate your client approves into an invoice in Billed: build the estimate from your saved products and services, send it, let the client approve it online, then convert it and add anything that changed.
Key Takeaways
- Billed's help center describes the whole flow: "You can make an estimate and then send it to your client. 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."
- Billed's invoice software page says you can "convert an approved estimate into an invoice", so you don't retype the work and prices.
- After you convert, Billed's help center says "You can add and edit any information here." Work agreed after the estimate goes on the invoice as its own line.
What estimate to invoice means
An estimate tells a client what the work will cost before you start. Once the client agrees and the work is done, or reaches an agreed stage, you send an invoice for it. Going from one to the other means carrying the same lines, quantities and prices across, then adding anything the client agreed to later.
Whether an estimate binds you to its price depends on how it's worded and on the law where you work, so ask a lawyer if that matters for your business.
How Billed handles it
Billed's help center describes the flow: "You can make an estimate and then send it to your client. 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."
To build the estimate, Billed's help center says of your saved products and services: "You can use these items and services to bill your clients." Billed's mobile app page says "Add line items, your logo, and tax, then send by email or share a link before you leave the site." Billed's invoice software page says "Save your tax rates and settings once, and Billed calculates taxes automatically when you create invoices and estimates." Billed's estimating page says "Easily create estimates in different currencies for each customer" and "Enhance your estimates with attachments". For terms, the help center says of the estimate's notes: "You can also add any terms and conditions in this section."
When the client has approved it, Billed's invoice software page says you can "convert an approved estimate into an invoice". Billed's help center says "Wherever you need an estimate in the form of an invoice, you can convert it immediately." and, once it's in invoice form, "You can add and edit any information here."
Worked example: a website estimate with one change
These are sample figures, and sales tax isn't included. A web designer estimates a small business website: design, 24 hours at $75.00 = $1,800.00; development, 30 hours at $75.00 = $2,250.00; and hosting setup, $150.00. $1,800.00 + $2,250.00 + $150.00 = $4,200.00.
The client approves the estimate online. Partway through, the client asks for one extra page, and they agree on 5 hours at $75.00 = $375.00. The designer converts the approved estimate into an invoice and adds the extra page as its own line, so the client can see what changed: $4,200.00 + $375.00 = $4,575.00.
Getting paid
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."
Estimate-to-Invoice Conversion in Billed
Estimates From Saved Items
Billed's help center says "You can use these items and services to bill your clients."
Related Features
Explore the Billed features that power estimate-to-invoice conversion.
Frequently Asked Questions
Start Invoicing With Billed
Set up your account and send your first invoice with Billed.
At a glance
| You want | In Billed |
|---|---|
| A price before the work | An estimate from saved products and services |
| The client's go-ahead | Online approval |
| The invoice | Converted from the approved estimate |
| Extra agreed work | Its own line, added after converting |
Sources for this page (checked October 30, 2026). Billed capabilities come only from Billed's own pages: invoice software, estimating software and features, and Billed's help center on creating an estimate, converting one into an invoice and saved items and services.
When this isn't for you
If you don't send estimates before the work, you can create each invoice directly instead.