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1.21.2026

Cash flow and cost control: Tackling top financial challenges in construction

How to build smarter and keep projects profitable
with accounts payable automation


In construction, cash flow is the fuel that keeps every project moving. Yet today, it is harder to maintain than ever. Rising labor costs, volatile material prices, uneven client payments, and complex subcontractor networks all put steady pressure on budgets. Combine that with thin margins and a steady stream of invoices coming in from the field, and even strong projects can feel financially strained.

Recent declines in commercial and manufacturing spending have only tightened margins further, making financial control a pressing priority.¹

You cannot control every market shift, but you can control how money moves through your organization. That is where AP automation for construction makes the difference.

When invoice processing, approvals, and payments run smoothly, construction teams get the visibility and speed they need to stay profitable, no matter the conditions.

In this blog, we break down the biggest financial challenges construction teams face today and how smarter workflows help protect cash flow and keep costs on track.

Margins are tight and getting tighter


Margins in construction have always been slim. Today, they are under even more strain.

  • Skilled labor is harder to find and more expensive to retain
  • Material costs fluctuate weekly
  • Projects run longer due to delays and supply chain issues
  • Rework and design changes add unplanned costs

Two major forces have intensified this margin pressure:

First, labor costs have continued to rise, driven by a persistent shortage of skilled craft workers and competition across data centers, energy infrastructure, and manufacturing projects.

Second, material prices have been heavily impacted by tariff volatility. Recent research shows tariffs on key building materials reached their highest effective rates in roughly 40 years, contributing to price spikes and procurement delays.1

These conditions make surprise costs and slow processes harder to absorb.

When AP is manual, pressure grows. Teams struggle with:

  • Missing early payment discounts
  • Duplicate billing
  • Off-budget spending that goes unnoticed
  • Slow processing that pushes payments late

AP automation in construction changes this. Faster routing, mobile approvals, and AI-powered validation help teams stay on top of spend before small problems become significant overruns.

Cash flow is unpredictable, and construction makes it worse


Unlike many industries, construction revenue does not arrive evenly. It comes in waves.

  • Upfront mobilization
  • Contract milestones
  • Progress billing
  • Retainage held until closeout

Meanwhile, expenses continue to mount, including subcontractor draws, materials, equipment rentals, inspections, and change orders.

This mismatch creates cash flow stress. Manual AP makes it worse because:

  • Invoices get stuck waiting for approvals on-site
  • Missing documentation delays payments
  • Forecasts rely on outdated data
  • Teams cannot identify which invoices are urgent or overdue

Automation helps smooth out the instability by:

Accelerating approvals from 3.26 days to under one day

Highlighting past-due or high-value invoices

Supporting cash flow forecast models based on committed spend

When you know what’s owed and when it’s due, you can plan smarter, manage working capital better, and avoid the stress of surprise payment spikes.

Cost overruns start small and grow quickly


Few industries experience cost creep as much as construction. Overruns often result from:

  • Design changes
  • Supply shortages
  • Rework and punch-list items
  • Scope shifts

External volatility only adds to the problem. Higher tariffs and supply chain strain have contributed to a major rise in project cancellations and budget reassessments, signaling how quickly material price swings can affect financial performance.

These conditions make surprise costs and slow processes harder to absorb. When AP is manual, pressure grows. Teams struggle with:

  • Missing early payment discounts
  • Duplicate billing
  • Off-budget spending that goes unnoticed
  • Slow processing that pushes payments late

Automated invoice processing and AI-powered matching help teams catch issues earlier by:

Flagging mismatched line items

Alerting teams to unusual charges or vendor behavior

Ensuring invoices align with updated scope

Surfacing out-of-budget costs immediately

See how top AP teams are transforming performance

Top-performing AP teams using automation have reduced non-PO invoice processing from 7+ days to just 2, while increasing PO invoice efficiency to 96.29% touchless processing and 100% touchless capture. Automation gives finance earlier visibility into costs, tighter controls, and clearer insight into financial risk.

Get the benchmarks

Subcontractor payments are complex and high-stakes


Subcontractor relationships depend on trust and timely payments. Delays can stall a project, slow down crews, or strain partnerships.

But subcontractor billing is complicated.

  • Multiple bid packages
  • Varying scopes and cost codes
  • Conditional waivers or lien releases
  • Invoices tied to percent complete
  • Field approval required before payment

Manual AP slows everything down.

Automated invoice routing ensures the right people, including project managers, field supervisors, and finance, review and approve each invoice without back-and-forth email or missing documentation.

Construction teams need better spend visibility


Without real-time visibility, project managers and finance teams often operate without the information they need.

  • Project managers do not know what has already been committed
  • Finance cannot tell which projects are trending over budget
  • Leadership cannot see cash flow needs across multiple jobs
  • Suppliers cannot track the status of their payments

AP automation brings clarity through:

Real-time spend tracking by project, supplier, cost code, or phase

Mobile dashboards available onsite or in the office

Alerts for exceptions, missing POs, or missing documentation

Filtered views for executives, finance, or project managers

With accurate data, teams make better decisions and proactively adjust rather than react after a cost overrun.

Cash flow forecasting becomes more accurate


Forecasting in construction is difficult because costs and revenue rarely move in sync.

AP automation strengthens forecasting accuracy by:

Providing complete and current invoice data

Highlighting committed but not yet invoiced spend

Surfacing cash flow risks early

Connecting budget, actuals, and forecast in one view

The result is a more stable working capital position and fewer surprises.

Compliance and audit readiness improve across every project


Construction projects involve many stakeholders, including owners, general contractors, subcontractors, auditors, and financial institutions. Documentation can easily become scattered across:

  • Paper invoices
  • Emails
  • Spreadsheets
  • ERP attachments
  • Field notes

AP automation centralizes every audit trail:

Who approved what and when

Whether POs match the invoice and receipts

Whether suppliers are qualified and approved

Whether documentation is complete

Audit prep becomes faster and more reliable, and reduces your financial and regulatory risk.

Build smarter. Keep projects profitable with Medius.

Managing financial pressure in construction is not about removing volatility. It is about putting the right systems in place to stay ahead of it.

AP automation gives construction teams the ability to:

  • Reduce invoice processing times
  • Accelerate approvals
  • Improve job cost accuracy
  • Strengthen cash flow
  • Prevent errors and duplicate invoices
  • Gain real-time visibility into project spending
  • Keep subcontractors paid and projects on track

Medius delivers these capabilities through AI‑powered invoice automation, mobile-friendly workflows, and real-time spend insights, all built for construction finance teams.

Yellow Construction hat on a table next to an open laptop

If you are ready to improve cash flow and tighten cost control across every job:

Know where your biggest risks lie, then tackle them head-on

Explore AP automation for construction

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AI vs. traditional tools

12026 Engineering and Construction Industry Outlook,” Deloitte Insights, November 13, 2025.

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