Construction invoicing software
Bouwflow is construction invoicing software that grows your invoices out of the site: from advance and progress invoice to final invoice, with automatic payment follow-up.
What is invoicing in construction?
Invoicing in construction is more than drawing up a bill. You often work with advance invoices, interim invoices and progress states, with reverse-charge VAT and price revisions, and you need to know per site what has already been invoiced and what is still outstanding. As long as that lives in Excel and separate accounting tools, you lose time and chase your own money.
That is why contractors choose construction invoicing software: one system where invoices grow out of your quotes, work orders and progress states, and where outstanding payments are followed up on their own.
What is Bouwflow?
Bouwflow is the all-in-one platform for contractors. In one environment you combine invoicing, quotes, time tracking and purchasing, while your teams work on site with the OnSitePro mobile app. You replace scattered spreadsheets and tools with a single system where all your project data comes together. More than a thousand construction professionals already use Bouwflow to run their projects faster and with more oversight.
How does invoicing work in Bouwflow?
Every invoice starts from your project: from an approved quote, a work order or a progress state. You enter nothing twice and your invoicing matches what happens on site.
- Create an invoice in one click from a quote, work order or progress state, with the client and project filled in automatically.
- Invoice in phases with advance invoices, interim invoices and a final invoice, where Bouwflow deducts the amounts already invoiced.
- Invoice as the site progresses with progress states, including extra work and price revisions.
- Apply the right VAT automatically, including reverse charge and renovation rates, with the legal wording on the invoice.
- Send your invoices by email or Peppol and forward them to your accountant in UBL, or connect to one of the many accounting integrations.
What invoicing in Bouwflow gives you
Paid faster
Because you invoice from the site and payments are followed up automatically, you no longer wait until the final settlement to get paid.
No forgotten invoices
Automatic reminders chase outstanding invoices until they are paid, without you having to keep an eye on them.
Invoicing that matches the site
Invoices grow out of your quotes, work orders and progress states, so you never retype data or miss a line.
Ready for VAT and Peppol
Set reverse-charge VAT correctly and send your invoices as e-invoices over Peppol, mandatory for B2B in Belgium.
In step with your accountant
Forward all your invoices in PDF and UBL to your accountant, or connect to one of the many accounting integrations like Billit.
Automatic reconciliation
Through the bank connection, incoming payments are matched to the right invoice, which moves to paid on its own.
Frequently asked questions about invoicing in construction
Related features
Pre- & Post-Calculation
From a bill of quantities to a calculated quotation, and with post-calculation you see what you really make per job.
Accounting Software Integration
Connect Bouwflow to your accountant's accounting software and send your invoices automatically.
Project Management & Planning
Comprehensive tools for project planning, progress tracking, and collaboration.

