Tim Sines, CPA, has been practicing accounting for 38 years. During that time, he tried “pretty much all” the practice management software platforms available, but nothing worked the way he wanted. So he did what any developer would do: He built his own.
What started as a personal solution evolved into Mango Practice Management, a cloud-based platform that now serves everyone from solo practitioners to firms with over 100 employees. During a recent Earmark Expo demonstration, Sines walked through the system he’s been perfecting since the DOS era, showing how it addresses the core challenge facing most accounting firms: managing multiple disconnected systems.
The Problem with Disconnected Systems
Sines didn’t set out to revolutionize practice management. He just wanted software that actually worked for his practice. After years of frustration with existing tools, he developed his own application. The system has evolved dramatically over the decades, progressing from DOS to Windows desktop to its current cloud-based form, which has been running for over eight years.
Mango Practice Management handles time tracking, invoicing, electronic payments, project management, engagement letters, budgeting, and reporting. “Those are really the core things you’re doing daily within your firm,” Sines explains. The problem wasn’t that these functions were too complex. It was that they existed in separate systems, creating inefficiency at every step.
During his demonstration, Sines shows how Mango handles time entry in a way that connects directly to other functions. Users start typing any part of a client name, and the system automatically brings up relevant engagements. Whether you’re doing tax planning or tax prep, the system handles billing increments and supports multiple concurrent timers. The time flows directly into invoicing without requiring users to switch systems or re-enter data.
The integration is especially valuable when corrections are needed. As Sines notes, staff “notoriously record time to the wrong engagement or wrong client.” Instead of forcing users to exit invoicing, navigate to time tracking, make corrections, and start over, Mango allows these fixes right in the invoicing interface. Users can move time between clients or engagements and see write-ups and write-downs in real time.
Streamlined Client Payments and Communication
The platform extends its integration approach to client interactions, particularly around payments. Traditional practice management often treats payment collection as an afterthought, requiring clients to navigate separate portals or remember login credentials.
Mango embeds payment functionality directly into client communications. When clients receive an invoice, they see a “click to pay” button. “The client does not have to log into a client portal to make a payment,” Sines explains. If they’ve entered payment information before, the system displays the last four digits for easy recognition.
The integration goes deeper with engagement letters. When a client agrees to recurring services and signs electronically, the system automatically sets up the entire payment infrastructure. It creates recurring invoices, establishes payment schedules, and collects payments on agreed-upon dates. Sines calls this “invoicing on autopilot,” noting that some firms have “100 or more of these set up” and “don’t even have to do the invoicing.”
Document management follows the same seamless approach. Using Outlook and Gmail plugins, accountants can send document requests through simple email links. When clients click the link, their uploads automatically route to the correct engagement folder. “You don’t have to log into the portal,” Sines explains. “In that email, there’s a link. Click it, and you’ll be redirected to a screen. You just drag and drop your documents.”
The system also handles collections automatically. It monitors payment terms and sends statement reminders without human intervention. “Mango will go do these statements automatically in the middle of the night” for any client with overdue invoices, with customizable follow-up intervals.
Project Management That Connects Everything
Many practice management tools treat project tracking as a separate feature. Mango makes it central to firm operations. The project management dashboard shows projects due this week, next week, and overdue items, connecting these deadlines to internal workflows and capacity.
A key feature is what Sines calls “complete tasks in order” functionality. This prevents team members from jumping ahead in workflows. “I can’t review the tax return until I’ve done the tax prep,” he explains. This ensures that “staff focus on what is in the batter’s box, not what’s on deck.”
The system addresses a common problem: showing people everything they need to do creates cognitive overload. Instead, Mango shows only tasks that are actually ready to be worked on, helping teams stay focused and productive.
When projects reach completion, the system automatically releases associated time for billing, connecting project milestones directly to revenue. Project notes “live with this project as it rolls forward,” ensuring that when different staff members handle recurring work next year, they have access to context from previous engagements.
The capacity planning feature shows utilization across all projects and allows managers to easily reassign tasks to different team members if somebody is out or leaves the company. Calendar integration with Microsoft Outlook and Google Calendar displays all past, present, and future appointments for any team member who had appointments with that client directly within the client view.
Pricing and Technical Details
Mango offers three pricing tiers. The basic tier includes core features, while the Plus tier adds project management and budgeting. The Pro tier, at $69 per user per month, includes all features plus document management, e-signatures, and capacity planning.
For electronic payments, ACH transactions cost 1% with a $12 cap, while credit cards run approximately 3%. The platform includes a mobile app that allows users to enter time and expenses, look up client contacts, and add notes while away from the office.
One practical feature Sines highlights: if users accidentally close their browser or log out while timers are running, their timers will still be there when they log back in. “You will not lose your timers.”
The system also supports multiple browser instances, allowing users to have “project management tab open” alongside “time tracking” and “billing worksheets” on different screens while maintaining data consistency across all views.
Integration as a Competitive Advantage
Sines’ demonstration reveals why unified platforms are essential for accounting firms. The ability to handle multiple functions in one system eliminates the data re-entry, system switching, and workflow friction that drain efficiency from traditional setups.
The platform includes a master template library that anybody using Mango can access and customize. This allows firms to adopt proven processes quickly rather than building workflows from scratch.
The notification system provides what Sines calls workflow intelligence, sending alerts when specific conditions are met, such as assigning tasks, resolving dependencies, or approaching project deadlines.
For firms evaluating practice management solutions, Sines recommends visiting the Mango website to schedule a demo or attend one of their weekly webinars. “We have two webinars every single week,” he notes, where potential users can ask questions and see the platform in action.
The Move Toward Unified Systems
Firms are moving away from juggling multiple disconnected systems toward unified platforms that treat practice management as an integrated workflow.
The demonstration shows how this integration eliminates friction between core business processes. When time tracking connects directly to invoicing, when project management triggers automated billing, and when client communications embed payment options, the entire operation becomes more efficient and responsive.
As practices grow more complex and client expectations increase, the competitive advantage belongs to firms that operate as unified organizations rather than collections of separate systems. The traditional approach of patching together different solutions for each function isn’t just inefficient; it creates operational bottlenecks that can’t keep pace with modern client demands.
Watch the full demonstration to see how Mango’s unified approach eliminates the inefficiencies that come from managing disconnected systems, and discover why accounting firms are choosing integrated platforms over fragmented tool approaches.