Odoo Contractor & Subcontractor Billing Software
Automate contractor and subcontractor billing with Odoo. PySquad builds systems for work orders, RA bills, measurements, payouts, and project-wise cost control.

- Construction companies
- Interior and fit-out firms
- EPC contractors
Faster contractor bill approvals
Better project cost visibility
More controlled contractor payouts
Results depend on scope, integrations and adoption.
A clearer view of the whole operation.
Construction and interior projects rely on multiple contractors operating across different sites, timelines, and scopes. Work orders, BOQs, measurement sheets, RA bills, and payments are often handled through spreadsheets, emails, and verbal confirmations. This creates gaps between what is executed on-site and what gets billed and paid. A structured billing system ensures that project progress, verified quantities, and financial transactions are tightly connected, reducing ambiguity and improving control.
Project costs escalate when contractor billing lacks structure and transparency.
Manual measurement tracking leads to inconsistencies between site records and billed quantities. RA bills are often delayed due to unclear approval ownership and missing validations. Finance teams struggle to match work completed with invoices raised, while site engineers spend time resolving disputes instead of progressing work. Payment cycles become unpredictable, retention and deductions are miscalculated, and contractor trust weakens over time. Without a unified workflow, project-level cost visibility remains incomplete and reactive.
- Record measurements in spreadsheets
- Approve bills through calls
- Track progress and billing separately
- Reconcile contractor payments manually
- Billed quantities get disputed
- Payments become delayed
- Project costs lack visibility
- Retention calculations become inconsistent
The capabilities behind the operation.
Review the functional scope, then discuss the requirements specific to your team.
Work Order and BOQ Management
Define detailed work orders linked to BOQs, quantities, and project scopes for accurate billing foundations.
Digital Measurement Sheets
Capture completed work quantities on-site with structured entries, timestamps, and supporting images.
RA Bill Automation
Generate running account bills automatically based on approved measurements and contract terms.
Approval and Authorization Workflow
Implement multi-level validation to ensure every bill is reviewed and approved before payment.
Retention and Deduction Management
Systematically manage advances, retention amounts, penalties, and adjustments without manual errors.
Contractor Portal and Reporting
Provide contractors and teams with clear bill status, history, and project-wise cost insights.
Grounded in the way your team works.
How we work- 01
Map contractor workflows from BOQ to final payout
- 02
Digitise measurement capture and approval at site level
- 03
Connect billing directly with accounting and payment processes
- 04
Build dashboards for real-time cost and progress visibility
We design contractor billing systems around actual construction workflows, not generic accounting setups. Starting from BOQs and work orders, we structure how measurements are captured, verified, and approved on-site. RA billing is then automated based on these validated quantities, with built-in approval hierarchies and financial rules. The system connects directly with accounting to ensure every approved bill flows into payments, deductions, and ledgers without manual intervention. The focus is on creatin
The complete workflow, in one view.

Is this the right fit?
The right solution starts with the right operating requirements.
Check the fit with usDesigned for
- Construction companies
- Interior and fit-out firms
- EPC contractors
- Real estate developers
May not be suitable for
- Projects without structured BOQs
- Businesses without work orders
- Teams without contractor billing
- Projects without RA bills
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Walk through the solution with your operation in mind.
Questions worth asking.
Ask something elseWhat is contractor and subcontractor billing software?
Contractor billing software helps construction companies manage work orders, BOQ quantities, site measurements, RA bills, retention, advances, deductions, approvals, and payments in one system. It connects physical work progress with certified billing and project cost records.
Can Odoo generate RA bills from approved measurements?
Yes. Odoo can be configured to prepare RA bills using approved site measurements, BOQ rates, previously billed quantities, retention, advances, recoveries, and other billing rules. Final certification can still follow the required QS, project manager, or finance approval workflow.
Can subcontractor bills be linked to BOQ items and work orders?
Yes. Subcontractor work orders can be linked to BOQ items, agreed quantities, rates, project scope, and commercial terms. This helps teams compare awarded quantities, executed work, certified billing, and remaining balance before approving payments.
Can Odoo manage retention, advances, and deductions in contractor bills?
Yes. Retention, mobilization advances, advance recovery, penalties, taxes, material recovery, and other deductions can be configured within the billing workflow. The exact calculation depends on the contract terms and the company’s billing rules.
How does contractor billing software help control project costs?
It connects approved measurements and contractor bills with work orders, BOQs, deductions, and payments. This gives project and finance teams better visibility into certified costs, outstanding liabilities, billed quantities, and contractor-wise expenditure across each project.
Let’s define your next step.
Tell us what needs to work better, the systems you use, and the scope you have in mind.
Discuss your requirementsShare your requirements through our enquiry form.The people behind the projects
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