Projects & Field Operations#Projects#Milestone Billing#Field Expenses#Cost Centers#Contracting

Projects, Milestone Billing & Field Expense Capture

Manage client projects, contracts, milestone billing schedules, labor timesheets, and mobile/email site expense capture mapped directly to project cost centers.

3 min read·Updated 2026-09-20

Projects, Milestone Billing & Field Expense Capture

Small-to-medium businesses in contracting, consulting, engineering, and field services require project accounting that bridges site operations with the financial ledger. BIZA connects project execution directly to accounting: track project phases, bill against contractual milestones, log field labor hours, and capture site expenses on the go.


1. Project Setup & Cost Center Allocation

Every project in BIZA acts as an analytical cost center. When a project is initialized:

  • Contract Value & Currency: Set the total contract sum in SAR, AED, USD, or other supported currencies.
  • Cost Center Linkage: The project is assigned a dedicated analytical cost center. Every invoice, purchase entry, expense, or timesheet tagged with the project updates its actual cost and margin in real time.
  • Customer Linkage: Directly tied to the client's master record for consolidated receivables and Statements of Account (SOA).

2. Milestone Billing Schedules

Unlike simple recurring monthly retainers, contracting and engineering projects are billed when contractual deliverables or percentage-of-completion thresholds are verified.

How Milestone Billing Works

  1. Define Milestones: Set up contractual stages with target dates, completion percentages, or fixed currency amounts (e.g., Phase 1: Mobilization & Design (20%), Phase 2: Structural Framing (40%), Phase 3: Final Handover (40%)).
  2. Progress Verification: Mark a milestone as achieved. Attach site inspection certificates, sign-off memos, or client approval documents.
  3. One-Click Invoice Generation: Click Bill Milestone. BIZA automatically generates a draft Tax Invoice pre-populated with:
    • Client details and VAT registration numbers (ZATCA/FTA compliant).
    • Exact contractual milestone description and line item amount.
    • Applicable VAT rates (15% Saudi Arabia, 5% UAE).
    • Retention money deductions (if applicable, held in a dedicated balance sheet retention account).
  4. Approval & Posting: Once reviewed, approving the invoice posts to Accounts Receivable and generates the compliant e-invoice XML and QR code.

3. Field Expenses & Site Receipt Capture

Site supervisors, project managers, and field technicians frequently incur local expenses: emergency hardware, fuel, materials, transport, and equipment rentals.

Multi-Channel Ingestion

BIZA eliminates lost paper receipts and manual spreadsheet logs through dual-channel capture:

  • Mobile / Web Photo Upload: Take a photo of the cash receipt or supplier voucher directly from a mobile device or desktop.
  • Email Ingestion: Forward receipts, invoices, or delivery slips directly to your workspace email (e.g., [email protected]).

AI Extraction & Cost Tagging

  1. Automated Parsing: AI-powered OCR extracts supplier name, date, currency, line items, VAT breakdown, and total.
  2. Project Tagging: Select the project cost center and expense category (e.g., Site Materials, Equipment Rental, Subcontractor Labor).
  3. Draft Review: BIZA creates an Expense Draft. The draft displays the original scanned receipt alongside extracted fields and confidence indicators.
  4. Approval Gate: The finance team or project director reviews and approves the expense. Upon approval:
    • Debits the Project Cost account in the General Ledger.
    • Credits Cash, Petty Cash, or Accounts Payable.
    • Updates the project's actual vs. budgeted cost analysis.

4. Labor Hours & Timesheet Tracking

Accurate project margin calculation requires factoring in employee and contractor time.

  • Weekly / Daily Timesheets: Employees or supervisors record hours worked by project and task.
  • Internal Cost Rates: Each employee profile can carry a private internal labor cost rate (standard hourly rate + overhead).
  • Cost vs. Billable Hours: Track non-billable project overhead alongside billable hours for time-and-materials contracts.
  • Direct Payroll Linkage: Approved project hours feed into the monthly WPS payroll run.

5. Real-Time Project P&L & Margins

Because all project transactions (milestone invoices, material purchases, field expenses, and labor costs) share the same underlying General Ledger:

  • Earned Value & Profitability: Instantly view revenue recognized vs. total actual costs incurred.
  • Budget vs. Actual Variance: Track material cost overruns or labor slippage before project completion.
  • Work in Progress (WIP): Accurately account for unbilled deliverables at period close.