PSA Platform
Professional Services Automation Software
Projects, resourcing, time, tickets and billing for services firms — in one platform, not five.
What is professional services automation software?
Professional services automation software is a single system for running a services business — project management, resource planning, time tracking, billing and reporting on one shared data set, so the hours a team records against a project are the same hours that drive the invoice and the utilisation report.
The category exists because services firms sell capacity rather than product. Their margin is the gap between what an hour costs to deliver and what it is billed at, and that gap is invisible when delivery data and financial data live in different tools. PSA closes it by making time the connective tissue: a timesheet entry carries a project, a task, a rate and a billable flag, and everything downstream — the invoice, the margin report, the utilisation figure, the forecast — is derived from it rather than re-keyed.
A PSA platform is normally understood to have five components: project and task management, resource management, time and expense tracking, billing and invoicing, and reporting and analytics. Many products add CRM at the front of that chain and a service desk alongside it, because for most firms the same people who deliver projects also answer support requests.
PSA is distinct from generic project management software, which is organised around schedule and task dependency and treats billing as something that happens elsewhere. It is also distinct from ERP, which is organised around the financial transactions of the whole organisation and handles project delivery only coarsely. PSA sits between them: it is operational software that happens to be financially literate.
What does PSA software do?
Five capability areas, and the reason each one belongs in the same system as the others.
Project and task management
Scope broken into phases, tasks and deliverables, with owners, dependencies and a budget in both hours and currency. The budget is what makes it PSA rather than a task board — progress is measured against it, not just against dates.
Resource management
Who is available, who is committed, and to what. Capacity is compared against booked work across the whole portfolio so over-allocation shows up before the delivery date rather than after it, and so a sales conversation can be answered honestly.
Time and expense tracking
Every hour carries a project, a task, a rate and a billable flag. That single record is what later produces the invoice line, the utilisation percentage and the project margin — captured once, reused everywhere.
Billing and invoicing
Time and materials, fixed fee, milestone and retainer, priced from rate cards that can differ by client, by role and by engagement. Approved time becomes an invoice without a spreadsheet in between.
Reporting and analytics
Margin per project and per client, utilisation per person, work in progress, revenue forecast from the committed pipeline. Because the inputs are operational records rather than a month-end export, the numbers are current.
Why one system
Each of these can be bought separately. The reason firms consolidate is that the handoffs between them — timesheet to invoice, project to forecast, ticket to billable hour — are where the leakage happens.
PSA software vs project management software vs ERP
These three categories overlap enough to be genuinely confusing, and the wrong choice is expensive. The honest summary: they answer different questions, and a firm large enough will end up running more than one.
| PSA software | Project management software | ERP | |
|---|---|---|---|
| Primary question it answers | Is this engagement profitable, and do we have the people to deliver it? | Is this project on schedule? | Is the business as a whole financially sound? |
| Core unit of work | The billable engagement — project, retainer or ticket | The task and its dependencies | The financial transaction |
| Time tracking | Central. Billable and non-billable hours feed rates, invoices and utilisation | Optional, usually for progress rather than billing | Payroll-oriented, rarely per-project |
| Resourcing | Capacity and utilisation across the whole portfolio | Assignment within a single project | Headcount and cost centres |
| Billing | Built in — time and materials, fixed fee, retainer, milestone | Usually absent; exports to something else | Strong, but generalised across the business |
| Where it wins | Firms that sell people's time and need delivery and finance in one system | Complex delivery where scheduling is the hard problem | Large organisations consolidating finance, supply chain and HR |
| Where it struggles | Manufacturing, inventory and complex general ledger work | Profitability, utilisation and invoicing | Day-to-day project delivery and service work |
If scheduling a complex build with hundreds of dependencies is the hard problem, a dedicated project management tool is the right answer and PSA will feel heavy. If consolidating a general ledger across subsidiaries is the hard problem, that is ERP. If the hard problem is knowing which clients are profitable and whether next quarter is deliverable with the people currently employed, that is PSA.
Chronodesk as your PSA platform
Chronodesk covers all five PSA components, plus a service desk and a CRM, on one database. Here is what that means in practice.
Projects with a work breakdown structure, not just a task list
Projects break down into phases, work packages and tasks, each with budgeted hours and a rate. Kanban and Gantt views run off the same structure, and recurring tasks cover the maintenance work that retainers are usually made of. PMO and portfolio management roll individual projects up to programme level on the Advanced plan.
Resource management measured against real timesheets
Allocations are booked against people and compared with capacity across every active project, so over-allocation is visible before it becomes a missed date. Because the actuals come from the same timesheets that drive billing, planned utilisation and achieved utilisation are computed from one source rather than reconciled between two. See resource management software for the detail.
Timesheets that separate billable from non-billable at capture
Time is logged against a project, a task or a ticket, with the billable flag and rate resolved from the rate card rather than typed in. Approval happens before invoicing, so a corrected entry corrects the invoice, the margin and the utilisation figure at the same time. Timesheets are on every plan, including Essential.
A service desk in the same system as the projects
Support requests arriving by email, web form or WhatsApp become tickets with owners, queues and response and resolution targets — and the hours spent on them are timesheet entries like any other, so support work appears in client profitability instead of vanishing into overhead. Multi-tiered SLA management software and pre-breach escalation are on Advanced.
Rate cards to invoice to project P&L
Rate cards can vary by client, role and engagement. Contract and retainer management tracks committed hours against consumed hours so a retainer that is running hot is visible mid-month. Approved time and expenses become invoices, and the same records produce revenue, cost and margin per project and per client.
Who uses PSA software
Any firm whose revenue is people's time, and whose costs are those same people. The details differ by industry more than the shape does.
Consultancies and professional services firms
Billable utilisation is the operating metric. See professional services software for the industry view.
MSPs and IT service providers
Contracted support plus project work, on the same clients. See managed IT services.
Creative and marketing agencies
Retainers, scope creep, approvals and profitability per client. See agency software.
Engineering and EPCM
Long programmes, staged billing and disciplined cost control. See EPCM.
How much does PSA software cost?
Chronodesk is priced per user per month, month-to-month, in USD or ZAR. Which plan you need depends on how much of the PSA stack you are replacing.
Essential
$15 (R225) / user / monthProjects, tasks, Kanban, timesheets, rate cards, billing, CRM, wiki and leave. The delivery-and-billing core of PSA without the service desk.
Professional
$30 (R450) / user / monthEverything in Essential, plus service management, the ticket system, client portal, knowledge base, document library, round-robin routing and the mobile app.
Advanced
$40 (R600) / user / month Full PSAEverything in Professional, plus resource management, PMO and project portfolio management, work breakdown structure, ticket SLA management, contract and retainer management, custom forms, AI agents and API access. This is PSA in the full sense — resourcing and profitability included, not just delivery.
Enterprise
$49 (R735) / user / monthAdds SAML SSO and OAuth, the report and dashboard builder, role-based packages, a client success manager, a 99.9% uptime SLA and the option of a segregated cloud deployment.
Full plan comparison and the currency switcher are on the pricing page. WhatsApp is not a separate feature charge — each connected WhatsApp number is billed as one additional Chronodesk licence at your plan rate.
Professional services automation software FAQ
What is PSA software?
PSA software — professional services automation software — is a single system for running a services business: project and task management, resource planning, time tracking, billing and reporting on one data set. Because the same hours that record delivery also drive the invoice and the utilisation report, a firm can see whether an engagement is profitable while it is still running rather than after it closes.
What is the difference between PSA and ERP?
ERP manages the finances and operations of the whole organisation — general ledger, procurement, inventory, payroll. PSA manages the delivery of billable client work: which consultant is on which engagement, how many hours were billable, what the engagement is worth and whether it made money. Large firms often run both, with PSA handling delivery and feeding invoices and revenue into the ERP. Smaller services firms usually find PSA on its own covers what they need.
What is the difference between PSA software and project management software?
Project management software is built to answer whether a project is on schedule. PSA software is built to answer whether it is profitable and whether the firm has the capacity to deliver it. PSA therefore treats time tracking, rate cards, billing and utilisation as core rather than as add-ons. A project management tool will tell you a task slipped; a PSA tool will tell you that the slip pushed the engagement 12% over its budgeted hours and what that costs.
Who needs professional services automation software?
Firms that sell their people's time: consultancies, IT service providers and MSPs, engineering and EPCM firms, creative and marketing agencies, accounting and legal practices, and internal delivery teams that recover costs from other business units. The signal that a firm needs PSA is usually operational rather than financial — timesheets in one tool, projects in a second, tickets in a third, and a spreadsheet reconciling them at month end.
How much does PSA software cost?
Chronodesk starts at $15 (R225) per user per month on Essential, which covers projects, tasks, timesheets, rate cards, CRM and billing. Professional is $30 (R450) and adds the service desk, ticketing and client portal. Advanced is $40 (R600) and adds resource management, PMO and portfolio management, work breakdown structure, SLA management and contract and retainer management — this is PSA in the full sense. Enterprise is $49 (R735) and adds SSO, the report builder and a 99.9% uptime SLA. All plans are month-to-month.
What features should PSA software have?
At minimum: project and task management, resource management with capacity and utilisation, time tracking that separates billable from non-billable hours, rate cards and billing that draw on those hours, and reporting that shows margin per project and per client. Most services firms also need a service desk for support work, a client portal, and contract or retainer management so recurring commitments are tracked against consumption rather than invoiced blind.
See Chronodesk run your services business
Start a 14-day trial, or have someone walk you through the projects, resourcing, timesheets and billing chain on your own numbers.