Invoicing & Billing Software for Engineering Firms

Multi-discipline project management with interdependent task tracking, cross-discipline review workflows, and milestone coordination that keeps all engineering teams aligned.. Professional invoicing software for creating, sending, and tracking invoices.

Challenges Engineering Businesses Face

If any of these sound familiar, you are not alone. Most engineering businesses deal with these every day.

Multi-discipline project coordination where civil, structural, mechanical, and electrical engineers work on the same project with interdependent deliverables and review cycles that must be sequenced correctly.

Professional liability insurance requirements where errors in engineering calculations or designs can result in structural failures, and documentation must demonstrate professional standards of care.

Fee proposal development where engineering fees are calculated on percentage-of-construction-cost, hourly, or lump-sum bases, and each method requires different tracking and invoicing approaches.

Regulatory submission management where plans must be submitted to multiple agencies — building departments, environmental agencies, utility companies — each with different requirements and review timelines.

Stamp and seal management where licensed professional engineers must review and stamp drawings, but workload distribution must ensure stamping engineers actually review the work they are certifying.

How Deelo Solves These for Engineering Businesses

Every pain point above has a matching solution built into Deelo — no extra plugins, no extra cost.

Multi-discipline project management with interdependent task tracking, cross-discipline review workflows, and milestone coordination that keeps all engineering teams aligned.

QA/QC documentation workflows with calculation checking records, design review sign-offs, and professional standards compliance tracking that demonstrate standard of care for liability purposes.

Flexible fee tracking with percentage-of-construction, hourly, and lump-sum billing modes, budget monitoring, and invoicing that matches the fee structure agreed with each client.

Submittal tracking with agency-specific requirements, submission dates, review period monitoring, and resubmission workflows that keep regulatory approvals on schedule.

PE review workflows with workload dashboards, review assignment tracking, and digital stamp management that ensure licensed engineers have genuinely reviewed every document they certify.

Invoicing Features Built for Engineering

Professional invoicing software for creating, sending, and tracking invoices. Automates billing workflows, accepts online payments, and gives you real-time visibility into your cash flow and accounts receivable.

Professional invoice templates with custom branding
Online payment acceptance (card, ACH, PayPal)
Automated payment reminders and overdue notices
Recurring invoices and subscription billing
Expense tracking and receipt capture
Multi-currency and multi-tax support
Accounts receivable aging reports
Client portal for invoice viewing and payment

Deelo vs the Competition

See how Deelo stacks up against popular invoicing tools for engineering businesses.

FeatureDeeloFreshBooksQuickBooksWave
Starting PriceFree / $19/seat$17 - $55/mo$30 - $200/moFree + payment processing fees
All-in-one platform
Invoicing features
Built-in CRM
Invoicing & payments
50+ integrated apps
No long-term contract

Engineering Industry Insights

Multi-discipline coordination tools reduce project delays by 25%

QA/QC workflows decrease design-related change orders by 40%

Frequently Asked Questions

What is the best invoicing software for engineering businesses?
Deelo offers invoicing software purpose-built for engineering businesses. It includes professional invoice templates with custom branding, online payment acceptance (card, ach, paypal), automated payment reminders and overdue notices, and more — all in one integrated platform that also includes 50+ other business apps.
How much does invoicing software cost for engineering companies?
Deelo starts free with all 50+ apps included. Paid plans start at $19/seat/month with no long-term contracts. Compare that to standalone invoicing tools like FreshBooks ($17 - $55/mo) that only cover one function.
Can I use Deelo's invoicing alongside other Deelo apps?
Yes — that's the core advantage. Your invoicing data connects seamlessly with project management, crm, time tracking. No integrations to set up, no data silos, no extra cost.
How long does it take to set up Deelo for a engineering business?
Most engineering businesses are up and running in under 15 minutes. Sign up, choose your industry during onboarding, and Deelo pre-configures the right apps and workflows for your business type.
Does Deelo replace FreshBooks for engineering businesses?
Deelo can replace FreshBooks and more. While FreshBooks focuses on invoicing, Deelo gives you invoicing plus 50+ additional apps — CRM, invoicing, scheduling, helpdesk, and more — for a fraction of the cost.

Ready to Transform Your Engineering Firms?

Get started with invoicing software built for engineering businesses. Free to start — no credit card required.