ERPNext for Construction & Contracting Companies in Oman.
Project costing, retention invoicing, subcontractor billing and WPS payroll for site labor — configured for how construction actually runs in Oman, not a generic accounting package with a project tab bolted on.
Most construction companies in Oman are running project costing in spreadsheets that fall apart the moment a variation order comes in, or a retention percentage needs releasing months after the invoice was raised. ERPNext ties every cost — labor, materials, subcontractor payments — back to the job it belongs to, live.
- Cost-to-complete tracked per project, not discovered at close-out
- Retention percentages held and released automatically against terms
- Variation orders logged against the original contract value
- Subcontractor bills matched against work completed, not guessed
- WPS payroll and Omanisation tracking for site and office staff alike
No separate "construction module"
This page describes how Projects & Assets, Accounting & VAT, Buying & Selling and Frappe HRMS work together for a contracting business — not a new product, a configuration.
If any of this sounds familiar, this is built for you.
Civil & general contractors
MEP contractors
Fit-out & interior contractors
Infrastructure & road works
Real estate developers managing their own build
From tender to retention release, in one system.
This is the path a typical project takes through Namaaly — not six separate tools stitched together, one connected record from quote to close-out.
Estimate & Contract
Quotation built against the tender, converted to a project with an agreed contract value.
Budget & Cost Plan
Labor, material and subcontractor costs planned against the contract value before work starts.
Site Execution
Materials issued, labor logged, subcontractor progress recorded — all posting against the live project.
Variation Orders
Approved changes update the contract value directly, keeping the budget aligned to current scope.
Progress Invoicing
Invoices raised against milestones, with retention held automatically per the contract terms.
Close-out & Retention
Final account reconciled, and held retention released against the agreed defect liability period.
The problems ERPNext actually solves on-site.
Not a feature list — here's what changes once each part is in place.
Only find out a project lost money after it's finished?
Cost-to-complete updates live as labor, materials and subcontractor costs post against the job — so margin erosion shows up mid-project, while there's still time to act.
Chasing spreadsheets to work out what retention is owed, and when?
Retention percentages are held against each invoice automatically and tracked to their release date, so nothing gets forgotten six months after handover.
Paying subcontractors based on their invoice, not verified work done?
Subcontractor bills are matched against logged progress and purchase orders before approval, closing the gap between what's claimed and what's actually complete.
Variation orders that never quite make it back into the original budget?
Approved variations post directly against the project's contract value, so the budget you're tracking against reflects the real, current scope — not the day-one estimate.
Running WPS payroll for site labor separately from office staff?
One payroll run covers site and office staff alike, in WPS-required format, with Omanisation ratios visible by project or department.
Equipment and materials that seem to disappear between sites?
Stock and asset transfers between sites are logged in one ledger, so equipment location and material usage are traceable back to the project that consumed them.
Built from four modules working together.
There's no separate "construction module" to buy — this is how existing Namaaly modules are configured for a contracting business.
Projects & Assets
Cost-to-complete tracking, milestone billing and fixed asset lifecycle for site equipment.
Accounting & VAT
Retention tracking, VAT on construction contracts, and Fawtara-format invoicing.
Buying & Selling
Subcontractor POs, RFQs to suppliers, and variation orders tracked from quote to bill.
Frappe HRMS
WPS payroll and Omanisation tracking for site and office staff, in one system.
Common questions from Oman's contractors.
Can ERPNext handle retention invoicing?
Yes — retention percentages are held against invoices automatically and tracked to their release date, rather than managed manually in a separate spreadsheet.
How are variation orders handled?
Approved variations post against the project's contract value, keeping the budget you track against aligned with the current, approved scope.
Can we track subcontractor payments against actual work completed?
Yes — subcontractor bills are matched against logged progress and purchase orders before approval.
Does this cover WPS payroll for site labor specifically?
Yes — one payroll run covers site and office staff in the required WPS format, through the Frappe HRMS module.
What would this cost for a mid-sized contracting company?
Typically the Growth tier (from OMR 3,375) covering Projects & Assets and Frappe HRMS on top of the included Accounting & VAT and Buying & Selling modules. Use the calculator for an instant estimate based on your company size.
See what this looks like for your projects.
Free assessment call — we'll map your current workflow and confirm a fixed price.