ACCOUNTING SOFTWARE
Project management, time tracking, and invoicing designed for accounting firms
Track engagements, log hours, and bill every client accurately without switching tools, so your firm sees unbilled WIP before it ages.
Built for Accounting Performance
Price engagements accurately, protect realization, and keep staff from unpaid overtime.
Align partners, managers, and staff on one source of truth for hours, budgets, and capacity, from tax season to year-end.
See how every engagement is tracking against its budget and fee, and catch write-downs before they happen.
Close every engagement on schedule. With full visibility into deadlines, workloads, and WIP, busy season stops being a guessing game.
Real Outcomes From Teams Like Yours
75%
Reduction in time and expense admin workload
75%
Reduction in time and expense admin workload
“Being able to put projects into BigTime is wonderful. In the past, there was no one place where you could look at all of the things that you were doing at the same time. Now, the visuals of the project management adds a layer of data that we didn’t have before”.
Vickie Geiman
General Manager/ Sr. Associate,
STR Resources & Associates, LLC
50%
Reduction in billing process time
50%
Reduction in billing process time
“We were using a combination of three different systems for time, accounting, and billing that we had to mesh together through uploads and reconciliations. With the Sage Intacct + BigTime integration, we brought all of our data into one consolidated platform, cutting our billing process in half .BigTime empowers our managers to get the data in real time and use it to make decisions on projects.”
Kyle MacDonald
Chief Financial Officer,
Aegis Project Controls
67%
Reduction in billing process time
67%
Reduction in billing process time
“Thought it was too good to be true for a while but it’s actually really changed our business and our team has been very happy with the solution. Staff are learning new things that even I haven’t known how to do”.
Reed Draper
Vice President, Finance and Administration,
Draper & Associates
30
Days improvement in average invoice turnaround time
30
Days improvement in average invoice turnaround time
“With BigTime, I’ve been able to go from spending 100% to 75% of my time on accounts receivable. Now I can spend 25% on billable [tasks]. It allows our company to make more billable use out of an employee like me”.
Nic Bewley
Senior Analyst & Billing Operations,
Patomak Global Partners
10+
Hours saved monthly on custom reporting
10+
Hours saved monthly on custom reporting
“If Inspire11 didn’t have BigTime, we would need to hire a much larger operations & finance team to get the same amount of reporting manually created every month. We’re able to run a much leaner and more efficient team by housing the data in BigTime”.
Jonathan Holden
Manager- Accounting & Financing,
Inspire11
Everything You Need to Run Accounting Engagements
Don’t force your firm into a tax-only point solution or an ERP you’ll never fully use.
Get time, billing, and engagement management today, with room to add depth as you grow.
Mobile time tracking
Log hours from anywhere, so no billable minute goes missing.
Engagement budgets
Budget every engagement and track actuals against the fee.
Flexible billing models
Bill hourly, fixed fee, retainer, or a custom model per client.
Bulk invoicing
Generate client invoices in one run instead of one by one.
Unbilled WIP visibility
See unbilled time and expenses on your dashboard, not in a report.
Staff capacity planning
Balance staff workloads and see who’s free before busy season.
Cost rate tracking
Set standard or variable cost rates to see true engagement margin.
Accounting integration
Sync time and invoices with QuickBooks or Sage Intacct both ways.
A Single Platform For Your Whole Engagement Lifecycle
BigTime is built for accounting firms that need more than time entry and a ledger.
The Accounting Workflow, Simplified
From engagement letter to payment, BigTime helps firms like yours bill accurately, protect margin, and grow confidently.
Integrated Quoting
Scope engagements with fees based on past actuals, then convert accepted quotes straight into budgets and plans.
Cost-Effective Staffing
Plan staff capacity across every engagement. Match the right people to the work and keep busy season overtime in check.
Automated Invoicing
Send accurate invoices in bulk or one by one, built around each client’s billing terms, without manual re-entry.
Works With the Tools You Already Use
BigTime connects with QuickBooks, Sage Intacct, Lacerte, Salesforce, and more, plus open API access to fit the way your firm works.
Empower Every Member of Your Team
Help your entire firm do its best work, from seasonal staff to the partners who sign off.
Practice Manager
- Build real-time dashboards for realization, utilization, and WIP
- Replace spreadsheet tracking and month-end reconciliation with one system
- Set rates and protect engagement margin
Engagement Partners
- Catch scope creep before it turns into a write-down
- View progress by engagement, staff member, and client
- Review and approve time without chasing timesheets
Staff Accountants
- See deadlines and budgets for every engagement
- Log hours easily, from anywhere
- Track time and expenses on a simple platform, even in busy season
Recognized by industry leaders
Frequently Asked Questions
What makes BigTime the right choice for accounting firms?
BigTime is purpose-built to give accounting firms everything they need to scope engagements, track time, manage staff capacity, and bill clients accurately. Unlike tax-only or generic project management software, BigTime combines engagement budgets, billing, and reporting on one platform, with financial visibility built in at every level, from unbilled WIP to margin by client. BigTime is the best fit for growing firms that need more than spreadsheets and a ledger, but not the weight of a traditional ERP. The platform is easy to implement, so your team can get back to serving clients, even in busy season.
How can accounting firms track billable time more accurately?
Billable time is where accounting firms quietly lose revenue. In busy season, staff log hours days later, minutes get rounded away, and managers spend evenings chasing timesheets.
Some of the most effective ways to close that gap are:
- Mobile time tracking, so staff can log hours anytime, anywhere
- Automatic reminders to log time
- Voice-to-text time tracking functionality
- Time tracking tied directly to each engagement and client, so hours land on the right job without re-entry
Can BigTime support fixed-fee, hourly, and retainer engagements?
Yes. BigTime supports hourly, fixed-fee, retainer, and hybrid billing models. You can match billing to each engagement letter, generate invoices in bulk or one by one, and track actuals against the agreed fee to protect margin on every client.
Your billing setup may vary depending on your BigTime subscription. Speak to our expert team to find the right configuration for your business.
How does BigTime help accounting firms plan staff capacity for busy season?
BigTime offers real-time utilization and capacity dashboards that show partners and practice managers who’s available and who’s overbooked. Use them to balance workloads before deadlines stack up, match skills to upcoming engagements, and find the most cost-effective way to staff each one, so peak season doesn’t run on overtime alone.
What integrations does BigTime offer for accounting firms?
BigTime integrates with QuickBooks, Sage Intacct, Lacerte, Salesforce, HubSpot, and dozens of other systems accounting firms already use. Time and invoices sync with your accounting system, and open API access lets you connect custom systems, so data flows cleanly across CRM, billing, and the general ledger.
How does BigTime help accounting firms reduce unbilled WIP?
BigTime gives partners and firm leaders real-time visibility into work that hasn’t been billed yet, with live data on:
- Unbilled time and expenses
- Engagement budgets vs. actuals
- Margin by client and staff member
- Invoices awaiting approval
Instead of waiting weeks for a report, your team sees the number on the dashboard, bills sooner, catches write-downs early, and keeps cash flow predictable.
Trusted by Accounting Firms Across Service Lines
Tax Preparation & Planning
Audit & Assurance
Bookkeeping & Client Accounting
Advisory & Outsourced CFO
Expat & International Tax
Forensic & Litigation Support
Payroll & Business Services
Years in professional services
Active Customers
Average NPS Score