Construction progress payment tracking means keeping measured quantities, supporting sketches, unit rates, price adjustments and deductions in one chain of records, so the valuation billed to the client and each subcontractor's payment come from the same data. Done well, project managers see progress by line item before month end, and disputes rest on evidence.
Why the monthly valuation keeps getting stuck
Take a residential project. As month end approaches, the site manager collects measurements in a personal spreadsheet, the technical office keeps measurement sketches in a separate folder, and subcontractors email their own payment tables. Accounts asks which version of last month's valuation was approved; nobody is quite sure. When the client's engineer says "this quantity does not match the sketch" on one line item, the whole table is reopened.
The valuation slips by a week, sometimes two, and a crew that is paid late pulls off site. And because the same work is calculated once for the client and again for the subcontractor in separate tables, the gap between the two figures only surfaces when the job is finished.
The root cause is rarely missing information. It is scattered information: quantities, sketches, rates, timesheets, material receipts and deductions sit in different files owned by different people. We look at where spreadsheet-based tracking reaches its limits in our article on outgrowing spreadsheets.
A quick primer: how progress payments work in Türkiye
In Türkiye a progress payment is called a hakediş. On public works it is governed by Public Procurement Law No. 4734, Public Procurement Contracts Law No. 4735, the General Specification for Works Contracts and the contract itself. In the private sector the contract sets most of the rules, but the logic is the same as interim valuations anywhere:
| Term | What it means | What matters in tracking |
|---|---|---|
| Measurement | Measured quantity of work (m³, m², tonnes, units) | Who measured what, and when |
| Supporting sketch (ataşman) | The dimensioned sketch and calculation behind a quantity | Kept in the same version as the quantity |
| Site measurement book (yeşil defter) | Records of work that will be hidden later, such as foundations or rebar | Kept on time and signed |
| Unit rate / lump sum | The contract's payment basis | Line items matching the contract schedule |
| Price adjustment | Where the contract provides for it, an extra amount based on changes in input prices | Correct index and period |
| Deductions | Retention, advance recovery, taxes and other statutory deductions | A recorded basis for each one |
| Interim / final account | Periodic payment and the closing account at completion | Cumulative figures consistent with earlier valuations |
Subcontractor payments sit in the same chain. If nobody knows which subcontractor carried out which part of the work billed to the client, you risk paying them too much or too little.
The cost of leaving it unsolved
Scattered records eventually turn into disputes. According to Arcadis' 2025 Construction Disputes Report, the average value of a construction dispute in North America rose to $60.1 million in 2024 (up from $43.0 million in 2023), and disputes took an average of 12.5 months to resolve.
The same report shows where disputes start. In 2024 the most common cause was errors and/or omissions in contract documents, followed by parties failing to understand or comply with their contractual obligations, with owner-directed changes in third place. The report stresses the role of clear, comprehensive documentation in avoiding conflict. Türkiye publishes no comparable dispute statistics, but progress payment arguments often stem from the same gap: missing evidence of what was built and what changed.
Knowing who is on site matters for safety as well as payment. According to the SGK Statistical Yearbook 2025 from Türkiye's Social Security Institution, construction (NACE 41–43) recorded 81,977 work accidents in 2025, and 586 of the 1,931 work-accident deaths that year (about 30%) were in the sector. A site that does not record which subcontractor crews came in, and for how long, is managing both labour payments and health and safety liability without evidence.
Seven steps to reliable construction progress payment tracking
- Move the bill of quantities to one source. The contract's line item or unit rate schedule should be the reference for both the client valuation and subcontractor payments, with every subcontract mapped to those line items.
- Record measurements on site, dated and attributed. The site manager enters measurements on a mobile device, with photos and the supporting sketch. "Who measured this, when, and in which block?" should be answered by the record. For large earthworks and stockpiles, drone stockpile volume measurement speeds up the survey.
- Put version control on sketches and documents. Which version of a drawing or valuation was approved should never be in question. We explain how to set this up in our document version control guide.
- Produce client and subcontractor valuations from the same measurements. The same work should not be calculated twice in two tables; each subcontractor's valuation should derive from their share of the quantities billed to the client.
- Link timesheets to site entry records. Where subcontract work is paid by labour-day or hour, payment should rest on gate records, not declarations. We cover how to capture those records in our article on construction site access control and attendance.
- Put deductions and price adjustment under rules. Retention, advance recovery, statutory deductions and any contractual price adjustment should be applied by defined rules, not by hand, with every formula change logged.
- Connect approvals and cost reporting. Valuations should flow site manager → technical office → project manager → accounts, and the approved amount should reach accounts and the cost report at the same time. If the valuation goes to the client by email, an email approval workflow prevents unauthorised sending; the invoicing side is covered in our article on e-invoice integration in Türkiye.
For most contractors the quickest gains come from steps 1, 2 and 4. To fit valuation tracking into a company-wide plan, see our digital transformation roadmap. The same principle applies when you buy the software itself: tying payment to accepted milestones is the core of supervising software contractors. Other sector examples are in our complete Digital Transformation guide.
Common mistakes
- Preparing the valuation at month end. If measurements are not collected through the month, they become estimates at the end of it.
- Taking the subcontractor's table as the record. A subcontractor's payment application is a claim to be checked, not the record itself.
- Leaving change instructions verbal. If a client-requested change is not written down and tracked as a separate item, it becomes exactly the kind of dispute the Arcadis report describes.
- Keeping timesheets on paper. With paper timesheets, "how many people were on site that day?" depends on the subcontractor's memory.
The accuracy of a progress claim also depends on which drawing revision the quantities were taken from. How design offices keep drawing and sheet revisions in order is covered in architecture and engineering project file management.
Valuations are one part of a wider record that tracks the whole project; we explain how to set it up alongside the programme, daily site reports and materials in our guide to construction project management software.
How we approach this at Digital Bridge
We do not sell progress payment tracking as an off-the-shelf package; we build it around your contract types and valuation method. As part of our construction and contracting solutions, we create a single chain of records from measurement to valuation and from site stores to the cost report.
- Requirements analysis. We review your contract types, subcontractor structure, current spreadsheet templates and approval steps, then share scope, phases and cost as a written proposal.
- Custom software. We build the bill of quantities, measurement, sketches, valuation and approval flow as custom web software, with a mobile app for site managers to enter data on site.
- ERP and accounts integration. We connect to your existing ERP system so approved valuations reach accounts and cost centres at once. If you are new to ERP, start with our ERP guide for SMEs.
- Document archive. Supporting sketches, measurement book pages, minutes and contract annexes are linked to each valuation within a document management system.
- Management dashboard. Budget versus actual by line item and pending valuations go onto the project manager's screen through our BI dashboard work.
On the programme side that valuations rest on, SmartPM project management from our Smart family can be used: tasks are tracked in list, kanban and Gantt views with dependencies, when one task slips its dependent tasks move forward automatically, and the critical path is always visible. In SmartPM the client sees only the tasks opened to them and can approve them or request changes, so approvals on work items do not get lost in email threads.
How SmartPass supports valuation checks
Labour is one of the most contested items in any valuation: how many people did a subcontractor have on site, and for how many days? Our own product, SmartPass, answers that question at the site gate.
SmartPass combines card access control, time and attendance and canteen meal counting in one system: a single card read opens the gate, creates an attendance record and, where entitled, deducts a meal. It works with 13.56 MHz MIFARE and NFC-readable cards; subcontractor staff hold permanent cards while visitors receive a temporary card at entry, and both are subject to the same access rules. With access groups and weekly time profiles you can define, for example, that a subcontractor crew may only use the gates of its own zone.
Timesheets are calculated against the shift plan without a separate attendance device, and reports can be exported to payroll. Contractors with several sites keep each site's records separate while head office gets consolidated reports; we explain that set-up in multi-site access control. Those reports can be used to compare a subcontractor's declared labour-days with actual gate records, and the same data shows, zone by zone, who is on site in an emergency. For handling subcontractor entry alongside health and safety obligations, see our article on contractor access and HSE compliance.
On data protection, card numbers are not stored in plain text, records past their retention period are anonymised, and every change is written to an audit trail with old and new values. How SmartPass entry data flows into your valuation software is agreed together during discovery.
Next step
Put your last three valuations on the table and note two things: how many days after month end each one was issued, and which line item caused the most argument with the client or a subcontractor. Those two facts show where the system should start. Contact us and we will review your valuation process with you and share a phased roadmap as a written proposal.