Accounts Payable Automation for Construction Firms

Every industry has its own challenges. In construction, these come from decentralised bases of operation, staggering numbers of invoices, and the manpower required to process them — all of it creating bottlenecks and risks of error in accounts payable.

Zahara is here to fix this for you. Our accounts payable automation software is uniquely suited to construction firms in that it solves a lot of problems that are built (no pun intended) into the industry. In this article we'll look at what those challenges are, and how Zahara can help.

Construction: accounts payable is a pain point

Handling invoices the old way (manually) opens construction firms up to real risks:

Labour-intensive manual invoice processing

• Construction is an invoice-heavy industry, and all those invoices need hands and heads for processing. It's tiring work — probably not as tiring as humping materials around a building site, but tiring nonetheless.
• Tired workers make mistakes. Invoices are lost or misfiled, suppliers don't get paid, and projects stall. If it hasn't happened yet, the risk still looms.
• Manual processing also creates bottlenecks that lag your accounts payable and blur your view of committed spend.

Complex, decentralised operations

• You've got multiple projects running at once, each with its own crews, costs and challenges. Your finance team handles stacks of invoices from multiple locations with differing needs. It gets complex fast.
• The high costs involved in construction demand a robust approvals system — which adds yet more complexity.

Cost tracking

• We're willing to bet your business software only lets you look back at your spend. That gives you a good read on sunk costs, but not a live view of where a project stands as it runs. In such a purchase-heavy industry, that's how costs skyrocket and budgets swell before anyone notices.

Difficult delayed payments

• We know what month-end looks like in a busy finance department. It's a madhouse. When that madhouse gets out of hand, invoices are processed slower and suppliers aren't paid on time.
• Construction already suffers the longest payment delays of any UK sector — an average of 38 days beyond terms (Coface, 2025), and roughly three-quarters of construction firms report being paid late. Slow internal invoice processing only compounds a problem the industry is already infamous for.
• When suppliers aren't paid, they stop supplying and your project runs over. That hits your bottom line and your ability to get the next job into the calendar.

Complicated compliance

• Another pitfall of manual invoice processing is the risk it creates at audit. The sheer number of invoices a construction firm handles magnifies the danger of lost or misfiled paperwork. You don't want those holes in your accounts when HMRC comes knocking.

Zahara's accounts payable solutions: the game changer

Zahara integrates with all major business software and plugs the gaps those systems can't handle — precisely the pitfalls construction firms are exposed to in accounts payable. Here's what Zahara can do for you and your bottom line.

Real-time budget monitoring

• With Zahara you won't be looking back at your finances — you'll see them in real time. If project costs start to snowball, you'll know before it's too late.
• You can watch every invoice progress step by step, from raising a purchase order through approval, delivery and payment — all live.
• You can also set budgets by project and department to keep spending in check.

Accessibility

• Zahara is mobile compatible, so it can be accessed anywhere you've got an internet connection. Whether you're in the middle of a site, back in the office, or — who knows — riding an elephant on that much-needed Sri Lankan holiday, you can open your phone and see how things look finance-wise.

Customisable approval workflows

• To break those unhelpful bottlenecks, we've built customisable approval workflows that let you control who can spend. Assign project managers or department heads — and, because the workflows are customisable, assign backup approvers for when your first choice is off sick or on holiday.

Audit trails

• Every invoice now carries a record of every action taken, from purchase order to payment, giving you full visibility into the history of each purchase.
• Zahara also archives your invoices in your business software, so there are no discrepancies when your company is audited.

Digitised invoice processing

• This is the big one. From now on everything is digital — no more finance team handling (or mishandling) paper invoices. The risk of lost paperwork is eliminated.
• The biggest benefit is time saved. Because Zahara is built to be simple, you just feed it digital invoices and the software does the rest.
• It reads and files invoices to your business software, using AI to three-way match (triple check) against purchase orders and goods received notes. That shuts out fraudsters sending crooked invoices and protects you against double orders.
• And while Zahara does this, your finance team can clock off at a reasonable hour and spend their days on more rewarding work than filing endless invoices — like finding ways to save the business money, or tuning up your profits.

Manual vs automated accounts payable: the numbers

The gap between processing invoices by hand and automating them isn't marginal. Industry benchmarks put it at roughly six to one on cost, before you count the knock-on savings from faster payment and fewer errors.

Source: Ardent Partners, AP Metrics That Matter (2025); touchless benchmark, Deloitte–Basware. Cost figures are US-based industry benchmarks, but the ratio — an 80% reduction — holds regardless of currency.

For an invoice-heavy construction firm, that ratio compounds quickly. Automation typically cuts processing costs by 60–80% and shortens cycle times by a similar margin — which, in an industry where you're already fighting the longest supplier-payment delays in the country, is exactly where the leverage is.

Using the best accounts payable software has real-world benefits for construction companies

We've long said our software is uniquely suited to construction. Because invoice processing software is our game, we're primely positioned to help firms that handle large numbers of invoices.

Invoice processing no longer needs to be done manually. Advances in technology have brought software to the point where it's easy to deploy, inexpensive to run and far more efficient than processing invoices by hand.

Adopting automated accounts payable doesn't just protect your bottom line from human error, fraud and duplicate orders — it adds capability too: the ability to track spend in real time, control budgets by project, and free up your finance team for higher-value work.

We've also heard back from plenty of construction companies about the money, the headaches and the time our software has saved them. You can read about that here.