Project management and invoicing software connects project delivery, time tracking, and billing for professional services firms that need consistent control over margins and cash flow.
In many mid-market and enterprise teams, invoicing still depends on chasing time entries, validating costs, and manually checking whether project budgets match what was actually delivered. That work delays billing, introduces errors, and creates uncertainty around revenue.
This article explains what project management and invoicing software includes, the capabilities finance and operations leaders should evaluate, and how leading tools support accurate, delivery-based invoicing.
Specifically, we’ll go over how invoicing software can generate invoices directly from live project data, reflect actual delivery costs, and support faster, more predictable revenue.
What is a Project Invoicing Software?
Project invoicing software helps professional services firms manage client work from delivery through billing by connecting project activity directly to financial outcomes to create professional invoices – both brand new and recurring. It brings together project tracking, time and expense capture, cost visibility, and invoicing into a single workflow.
In practical terms, this type of software gives finance and operations leaders clear visibility into essential parts of execution and billing:
- How projects consume time and budget.
- Which roles drive costs
- How delivery compares to what was planned.
- Understand which hours, expenses, and fees are billable.
- Track the financial impact of scope changes, staffing choices, and cost overruns.
- Whether projects are trending toward over- or under-billing.
As a result, it reduces reliance on spreadsheets, manual reconciliations, and post-project corrections that slow billing and increase risk to help project managers manage cash flow better.
Project Invoicing Software – Key Features
Project management and invoicing software is evaluated on how well it supports delivery-to-billing workflows. The features below reflect what finance and operations leaders rely on to protect margins, issue invoices on time, and maintain control as project volume increases.
Live Time and Expense Tracking Tied to Projects
The best project invoicing software captures time logs and expenses directly against projects, phases, and tasks. This ensures labor costs and reimbursable expenses are recorded as work happens, using the correct rates and rules, to help managers create professional estimates and accurate invoices with close to zero manual labor. With such tools, finance teams no longer need to reconcile timesheets and receipts at month-end to understand what is billable.
Project Budgets and Actuals Visibility
Would like to see where projects are tracking ahead or behind plan? Or maybe which roles are driving overruns, and how remaining work will impact profitability? With clear budgets-vs-actuals tracking, leaders can identify whether overruns come from underestimated effort, staffing mix issues, scope changes, or delivery inefficiencies.
They can also see how much budget remains, what work is left to complete, and whether current delivery trends will result in write-offs or delayed billing. This insight supports better staffing decisions and earlier course correction, helping businesses get paid faster – and without any unforeseen surprises.
Delivery-Based Invoicing
This feature reduces billing errors, shortens invoice preparation time, and lowers the risk of disputes with clients. Invoices are generated from approved project data, including time, expenses, fixed fees, and milestones.
In practice, it saves hundreds of hours and recovers missing revenue. For example, Priority Designs, a product development consultancy, saved over 210 hours per year after integrating BigTime (project management and invoicing software). With hourly rates factored in, that equates to more than $44,000 in recaptured productivity.
Flexible Billing Models
Professional services firms rarely bill the same way across all clients. Teams need to support time-and-materials, fixed fee, retainers, project milestones, or blended pricing without rebuilding financial logic for each project.
Flexible billing models allow finance teams to apply the appropriate billing structure to each engagement while maintaining consistent delivery tracking. This reduces manual adjustments during invoicing and lowers the risk of underbilling or overbilling.
Online Payments with Payment Tracking
Professional looking invoices are not the only factor impacting your billing. Quick payments are equally important – even more so if you’re looking for a project invoicing software to improve your cash flow. The best tools in this category help professional services companies accept payments, create payment reminders, and track payments that have already been completed – all based on digital invoices created within the same system. With such features, the results of the invoicing process are much easier to monitor.
Margin and Profitability Tracking
Understanding whether work is profitable requires more than knowing what was billed. Leadership needs to see how labor costs, overhead, write-offs, and pricing decisions affect margins at the project and client level to successfully manage projects and ensure their profitability.
With margin and profitability tracking, project managers can identify which engagements generate healthy returns and which consistently erode margins. This insight supports pricing adjustments, delivery changes, and client prioritization decisions – a game-changing processes for both large and small business.
Forecasting and Cash Flow Insight
Forecasting and cash flow insights connect project progress with billing schedules to show expected revenue, when invoices are likely to go out, and how delivery trends affect future cash flow. This allows finance leaders to set more accurate revenue expectations, plan hiring and investments with confidence, and identify risks early when projects begin to drift off plan. The best project invoicing tools allow you to create estimates for weeks and months in advance, helping balance workloads and create projects without a single error.
Invoicing Workflow and Approvals
Look for a feature that allows invoices to move through configurable review and approval steps before being sent to clients. This gives finance and project leaders confidence that billed amounts are accurate, complete, and aligned with contract terms, without relying on informal checks or last-minute adjustments.
The Best Project Invoicing Software – Ranking
Not all project management and invoicing software supports delivery-to-billing workflows equally well. Some tools focus on task tracking, others on accounting, and only a few connect project execution, time, costs, and invoicing in a way that finance and operations teams can rely on at scale.
The ranking below compares leading software based on the most important criteria for finance teams:
- How effectively they support accurate,
- Delivery-based invoicing,
- Project financial management,
- Margin control,
- billing workflows for professional services firms.
The Top 7 Project Management Invoicing Software for 2026 Include:
- BigTime – The strongest project management and invoicing platform for professional services firms that bill based on delivery. Connects live time, costs, and budgets directly to invoicing and forecasting, giving finance teams reliable margin visibility and faster billing without operational overhead.
- Kantata – A comprehensive PSA software with advanced resource planning capabilities, well-suited for organizations managing complex staffing models. However, financial workflows and invoicing often require configuration and ongoing administration, which can slow time-to-value.
- Deltek – Built for highly regulated environments and large enterprises that prioritize compliance. Powerful but rigid, with long implementation cycles and limited flexibility for mid-market services firms.
- Scoro – Clean and approachable for teams juggling multiple client projects, combining work tracking with basic billing. Falls short when deeper project financial control or forward-looking forecasting is required.
- BQE Core – A solid option for capturing billable time and expenses across professional services teams. Reporting and financial insight can feel constrained, especially for leaders managing margins across a growing project portfolio.
- Wrike – Highly flexible for task coordination and cross-team collaboration, with billing handled through extensions or integrations. Works well for delivery teams but leaves finance dependent on external systems for invoicing and control.
- Mavenlink – Focuses on project execution and collaboration for services teams, with limited depth in financial workflows. Better suited for tracking work than supporting scalable, delivery-driven invoicing.
Best project management software with invoicing for 2026: Comparison
| Tool | Description | Strengths | Limitations |
| BigTime | Professional services platform built around project financials, time tracking, invoicing, and forecasting | Strong delivery-to-billing connection; invoices generated from live project data; clear margin and forecasting visibility; any project overheads and additional costs associated with the project | Focused on professional services, not designed for product-centric workflows |
| Kantata | PSA platform combining project management, resource planning, and financials | Robust resource management; solid project portfolio visibility | Complex setup; invoicing workflows often require configuration and training |
| Deltek | Enterprise-grade project and accounting software for large services and government contractors | Deep compliance and reporting capabilities; strong cost accounting | Heavy implementation; rigid and slower to adapt for mid-market firms |
| Scoro | Work management tool with projects, billing, and reporting | Clean interface; good for smaller teams managing multiple client projects | Limited depth in project financials and forecasting for complex engagements |
| BQE Core | Practice management software for billable firms | Solid time and expense tracking; supports invoicing and billing | Reporting and forecasting can feel rigid; UI is less intuitive for non-finance users |
| Wrike | Project and work management platform with add-on billing tools | Strong task and collaboration features; flexible project views | Billing and invoicing rely on integrations; limited native financial control |
| Mavenlink | Project management and collaboration tool for services teams | Good project tracking and collaboration features | Financial and invoicing depth lags behind dedicated PSA solutions; billing logic doesn’t scale with complexity |
BigTime
Reviews: G2: 4.5+, Capterra: 4.6+
Pros
- Invoices are generated directly from approved project budgets and cost data, ensuring billing reflects actual delivery without manual reconciliation.
- Native integrations with accounting, payroll, and CRM systems keep financial and client data in sync, reducing handoffs and eliminating duplicate data entry.
- Clean, modern interface that makes project financials, billing, and forecasting easy to understand and act on, even for non-finance users.
- Highly accurate financial visibility and forecasting built specifically for professional services firms that manage billable work.
- Scalable architecture that supports firms as they grow from small consultancies into complex, multi-team organizations without adding process friction.
- Responsive onboarding and customer support that help teams adopt the platform quickly and realize value early.
Cons
- Purpose-built for professional services, not suitable for product-based or manufacturing businesses
- Limited customization in entry-level plans.
BigTime is a professional services automation platform built for firms that need accurate financial control without operational complexity. It combines project portfolio management, time and expense tracking, invoicing, and forecasting in a clean, modern interface that makes day-to-day financial oversight accessible to both finance and delivery teams.
At its core, BigTime connects live project data directly to billing and financial reporting powered by artificial intelligence. Time logs, labor costs based on individual rates, project expenses, and billing rules are captured as work occurs and automatically flow into invoices to save time and improve accuracy. This removes the need for finance teams to manually reconcile timesheets, costs, and budgets at the end of the billing cycle, significantly reducing administrative effort and billing errors and time spent on accurate invoicing.
Additionally, BigTime also integrates with number of external tools. If you already have an accounting software, time tracking tool, or other systems, BigTime can seamlessly add it to its sources, creating a bespoke digital environment for your business. As a result, it can be used not only to create invoices, but also to automate billing process without overburdening your team members.
For professional services firms, BigTime delivers accurate, real-time insight into margins, utilization rates, and revenue forecasts. Leaders can see how projects are performing financially, understand the impact of staffing and scope changes, and issue invoices with confidence as soon as work is approved.
Key Features
- Live time and expense tracking tied directly to projects
- Project budgets vs. actuals visibility
- Delivery-based invoicing from approved project data
- Flexible billing models (T&M, fixed fee, retainers, milestones)
- Margin and profitability tracking by project and client
- Forecasting and revenue visibility
- Seamless integrations with Quickbooks online and other platforms.
- Branded invoicing and integrated payments
Pricing
Custom pricing based on firm size and feature requirements, starting with affordable packages for small teams and scalable enterprise plans for larger organizations. You can explore pricing details through a free trial or join a free demo to see BigTime in action.
Kantata
Reviews: G2: 4.2, Capterra: 4.3
Pros:
- Provides portfolio-level visibility into projects and resourcing that can support high-level planning.
- Supports basic financial tracking across engagements.
Cons:
- Lengthy setup and configuration requirements.
- Invoicing is not consistently generated from fully approved, live project data.
- Billing workflows often require configuration, manual validation, and ongoing administration
- Financial processes can feel rigid for teams that need speed and flexibility.
Kantata is positioned as a comprehensive PSA for organizations managing large teams and complex delivery models. Its strengths are most visible in resource planning and portfolio oversight, making it a viable option for firms that prioritize staffing optimization.
That said, billing and financial workflows tend to introduce friction. Invoice setup and maintenance often require configuration and internal expertise, which can slow billing cycles and reduce operational agility, not empower contractors. For firms that need invoices to flow directly from delivery data with minimal intervention, Kantata may feel like overkill.
Key Features:
- Resource planning and utilization tracking.
- Portfolio management and cross-project visibility.
- Configurable billing and invoicing workflows.
Pricing:
Enterprise-oriented pricing with quote-based contracts and implementation overhead. The cost is best justified for organizations that prioritize resource planning over fast, delivery-based invoicing.
Deltek
Reviews: G2: 4.0, Capterra: 4.1
Pros:
- Excellent compliance support for U.S. government and defense contractors.
- Mature financial control features.
- Supports detailed financial reporting in regulated environments.
Cons:
- Heavy implementation and long time to value.
- Limited flexibility for mid-market services firms.
- Complex workflows and dated user experience.
Deltek is designed for large organizations operating under strict regulatory and compliance requirements. Its depth in cost accounting and audit support makes it a common choice for government and defense contractors.
For most professional services firms, however, that depth comes at the cost of agility. Deltek’s complexity, rigidity, and implementation effort can outweigh its benefits unless compliance is the primary driver. Teams focused on faster billing, simpler workflows, and real-time financial insight into purchase orders may find it overly burdensome.
Key Features:
- Enterprise cost accounting.
- Compliance-driven financial reporting.
- Formal financial governance and audit reporting.
Pricing:
High enterprise pricing; implementation typically requires custom configuration and ongoing vendor maintenance.
Scoro
Reviews: G2: 4.4, Capterra: 4.6
Pros:
- Supports basic time tracking and invoicing for small teams.
- Simple to adopt for low-complexity billing needs.
- Combines work tracking with basic billing.
Cons:
- Limited linkage between delivery data and invoicing.
- Shallow margin and forecasting insight.
- Billing workflows struggle as project complexity increases.
Scoro is suited to small teams managing multiple client projects with relatively simple billing requirements. It provides a lightweight way to track work and issue invoices without a heavy setup.
As delivery models become more complex, Scoro’s financial depth becomes a constraint. Invoicing and forecasting are not tightly connected to live project performance, which limits confidence for finance teams managing margins and cash flow at scale.
Key Features:
- Lightweight project and time tracking with basic billing support.
- High-level financial summaries for low-complexity client work.
- Simple invoicing workflows suitable for small teams.
Pricing:
All plans start from 5 users. A free 14-day trial.
- The Core plan: $23.90 per user/month.
- The Growth plan: $38.90 per user/month.
- The Performance plan: $59.90 per user/month.
The cost is best suited for small teams with simple billing and limited forecasting needs.
BQE Core
Reviews: G2: 4.2, Capterra: 4.5
Pros:
- Structured time and expense capture aligned with billing cycles.
- Familiar accounting-style workflows for finance teams.
- Supports standardized invoicing across multiple projects.
Cons:
- Limited real-time margin visibility.
- Reporting and forecasting are static and retrospective.
- Billing workflows can require manual review and adjustment.
- Scaling invoice volume increases manual finance effort.
BQE Core focuses on the fundamentals of time, expense, and billing management for professional services firms. It covers essential workflows and provides a stable base for capturing billable activity.
Where it struggles is adaptability. Financial insight can feel static, and the interface doesn’t always support quick operational decisions. Given that, billing and margin analysis often happen after delivery decisions are already made, limiting the tool’s usefulness for proactive financial control as firms grow.
Key Features:
- Time and expense tracking for billable work.
- Standardized invoice generation from recorded billable activity.
- Retrospective financial and utilization reporting.
Pricing:
Mid-market pricing with modular add-ons and configuration-dependent.
Wrike
Reviews: G2: 4.2, Capterra: 4.3
Pros:
- Supports delivery teams in tracking work completion.
- Integrates with external billing tools.
- Strong task and collaboration features.
Cons:
- No native delivery-based invoicing.
- Finance teams depend on integrations and exports to bill clients.
- Margin and revenue visibility are fragmented across systems.
Wrike is primarily a work and collaboration platform designed to help teams organize and execute projects. It excels at coordination and task management across departments.
From a financial perspective, Wrike falls short. Billing, invoicing, and margin tracking are handled through integrations rather than native workflows, which introduces fragmentation. For finance and operations leaders, this limits confidence in invoice accuracy and slows billing cycles.
Key Features:
- Work and task tracking for delivery teams.
- Integrations with accounting and billing tools.
- Project status visibility (but without financial depth).
Pricing:
Public tiered pricing, with billing and financial workflows dependent on integrations and add-ons. The cost is best justified for teams focused on work coordination rather than finance-led invoicing.
Mavenlink
Reviews: G2: 4.1, Capterra: 4.3
Pros:
- Provides structured project tracking for services teams.
- Basic financial data can be associated with projects.
- Supports portfolio-level visibility for delivery leaders.
Cons:
- Limited depth in project financials.
- Invoicing workflows lack flexibility.
- Less suitable for scaling billing operations.
Mavenlink was built to support project execution and collaboration for services teams. It provides reasonable visibility into project progress and team activity.
On the flip side, billing and invoicing lack the depth needed for firms that rely on precise, delivery-based revenue recognition. As project volume grows, finance teams may need additional systems to maintain control.
Key Features:
- Project execution tracking for professional services teams.
- High-level financial association between projects and revenue.
- Basic invoicing support without delivery-based automation.
Pricing:
Quote-based pricing with variable cost depending on configuration and usage. The investment makes sense primarily for delivery-focused teams that rely on external systems for billing control.
What is the Best Project Management and Invoicing Software?
If there was one thing finance leaders could agree in is that the best project management and invoicing software must remove uncertainty from billing. Yet, most of the tools still make finance teams chase time entries, rebuild invoices, and hope margins hold.
This is where BigTime shines. This project invoicing software is built around a single, non-negotiable principle: “invoicing must be rooted in live project data.”
Time entries, individual labor rates, project expenses, and billing rules are captured as work happens and flow directly into invoices. The impact is measurable. According to the benchmark report, 90% of projects managed in BigTime stay on, or within budget, 84% of customers report clear visibility into accurate profit margins, and 91% of invoices sent through BigTime are paid on time.
Firms using BigTime have also documented reductions in days sales outstanding (DSO) and hundreds of hours saved annually by removing manual billing work from finance teams.
To see how BigTime works in practice, you can explore a live demo or start a free trial.
FAQ
What is project invoicing software?
It’s software that connects project delivery directly to billing. It tracks time, costs, and budgets as work happens and uses that data to generate accurate invoices, monitor margins, and support reliable revenue forecasting.
Which factors should you consider when choosing project management and invoicing software?
Focus on what reduces finance effort and billing risk:
- Delivery-based invoicing: Invoices generated from approved time and costs, not rebuilt manually.
- Margin visibility: Budgets vs. actuals visible while projects are still running.
- Billing speed: Ability to invoice immediately once work is approved.
- Scalability: Processes don’t break as project and invoice volume grow.
- Integrations: Clean sync with accounting, payroll, and CRM.
What are the key software options for project invoicing software?
These are commonly evaluated options for professional services firms:
- BigTime – delivery-based invoicing and financial visibility.
- Kantata – resource-heavy PSA with configurable billing.
- Deltek – compliance-driven enterprise financial control.
- Scoro – lightweight projects with basic billing.
- BQE Core – time, expense, and invoicing fundamentals.
What is the best project management and invoicing software?
The strongest option is software that generates invoices directly from approved project data and minimizes finance involvement in billing. BigTime consistently performs best here by removing manual reconciliation from the billing process.
What is the best project management and invoicing software for small firms?
Smaller teams benefit from eliminating manual billing early. BigTime helps small firms invoice accurately without building complex finance processes as they grow.
What is the best project management and invoicing software for medium-sized companies?
Mid-sized firms need billing workflows that scale with project volume. BigTime supports this by maintaining margin visibility and invoice accuracy without increasing finance overhead.
What is the best project management and invoicing software for enterprises?
Larger organizations need standardized delivery-to-billing workflows, complex pricing support, and reliable integrations. BigTime delivers this without the rigidity and overhead of ERP-style systems.
Which project management and invoicing software has the best integrations?
Integrations only matter if they eliminate the need for reconciliation in finance. BigTime’s integrations, for example, are built specifically to keep project delivery, billing, and accounting in sync, so invoices and financial reports rely on the same underlying data.
BigTime native integrations include:
- ERP/Accounting: QuickBooks, Sage Intacct, Microsoft Dynamics GP/365, Business Central, Netsuite.
- CRM: Salesforce, HubSpot, Dynamics CRM.
- Project Management: Smartsheet, MS Project, Jira, ServiceNow.
- Productivity/SSO: Google Calendar, Microsoft Outlook, Okta, OneLogin.
Which project management and invoicing software has comprehensive time tracking and invoicing?
For a CFO or finance lead, comprehensive time tracking and invoicing means being able to issue invoices without second-guessing the data. You want confidence that hours are approved, rates are correct, costs are accounted for, and nothing needs to be fixed before billing goes out.
With BigTime, finance leaders can bill directly from validated project activity, without chasing teams or reconciling numbers. Time is logged in the context of delivery, costs are calculated automatically, and only approved work makes it into invoices.
Which project management and invoicing software combines project management and billing?
The best invoice project management tools combine project management and billing, ensuring projects are financially complete by design. For finance and operations leaders, this means project budgets, approved time, costs, and billing rules stay connected throughout delivery, so billing does not depend on manual checks or data handoffs.
BigTime is built around this model. Project execution, time tracking, and invoicing operate on the same underlying data, allowing leadership to invoice based on approved project activity and standardize billing workflows across teams without additional finance overhead.
