The research in brief
BigTime is a strong fit for agencies, consultancies, and freelancers that need native time tracking to flow directly into billable client invoices. Four of seven platforms named BigTime during the ranking stage, with an average listed rank of 5.25 and a best rank of 4. The strongest reason to consider it is its native timer-to-invoice workflow: tracked, approved time becomes time-and-materials invoices with configurable billing rates and optional QuickBooks synchronization. The main limitation is pricing transparency - Essentials starts at $20 per user per month, but Advanced and Premier pricing is not consistently published and may require a sales quote.
Research Snapshot
| Field | Value |
|---|---|
| Platform mentions in ranking stage | 4 of 7 platforms |
| Share of included platform responses | 57.1% |
| Average listed rank | 5.25 |
| Best listed rank | 4 |
| Software offering | BigTime Essentials; Advanced or Premier for custom reporting, templates, multi-currency, and resource management; BigTime PSA with QuickBooks integration |
| Overall use-case fit | Strong |
| Research date | 2026-10-02 |
Why BigTime Qualified for This Study
Questions explored
- Is BigTime a good choice for native time tracking for billable client work?
- Why did AI platforms recommend BigTime for hourly billing workflows?
BigTime qualified because it is a professional-services automation platform built around billable time rather than a general project tool with a timer bolted on. Four of the seven platforms in this study named BigTime during ranking discovery: Anthropic, DeepSeek, Kimi, and OpenAI. Its listed ranks ranged from 4 to 7, producing an average of 5.25.
The platform-level fit ratings were more favorable than the ranking positions suggest. OpenAI, Grok, Kimi, and Google rated BigTime a "strong" fit for this use case; Anthropic, DeepSeek, and Perplexity rated it "good." No platform rated it a poor fit.
The core qualification is architectural. BigTime treats tracked time as the input to invoicing, not as a separate reporting exercise. Company documentation describes time-and-materials invoices generated from unbilled time and expenses, with amounts calculated from hours and billing rates and work-in-progress relieved when the invoice is finalized [8]. Independent and company sources both describe the same time-to-invoice chain, which is why the entity survived the ranking filter despite mid-pack placement.
This review evaluates BigTime only for native time tracking for Billable Client Work. It is not a general assessment of BigTime as a company or of its full professional-services automation suite.
The software offering in focus
Questions explored
- Which BigTime plan should a buyer choose for native time tracking that flows into client invoices?
- Does BigTime Essentials include invoicing and QuickBooks integration for hourly billable work?
The relevant product is BigTime's professional-services automation platform, sold in tiered per-user plans. For this use case, the entry point is Essentials, which BigTime's public pricing page lists as starting at $20 per user per month, with all plans including time tracking [28].
Plan positioning differs by source. BigTime's help-center material describes Essentials as basic time tracking and invoicing, while the public pricing page lists broader included capabilities - a discrepancy the reviewed sources do not resolve [3]. Third-party listings place Advanced at approximately $35 per user per month and Premier at approximately $45 per user per month, but BigTime's own pricing page routes buyers to a demo request for those tiers [41].
For a buyer whose only requirement is native time tracking that becomes client invoices, Essentials is the plan the sources most consistently describe as sufficient. Advanced becomes relevant when the buyer needs custom reporting, project templates, custom invoice templates, or multi-currency expense handling. Premier becomes relevant when multi-currency invoicing, multi-level approvals, project budgeting, or resource allocation are material requirements [3].
What the AI Platforms Agreed About
Questions explored
- What do AI platforms agree BigTime does well for billable time tracking and invoicing?
- Does BigTime convert tracked hours into client invoices without manual re-entry?
The platforms agreed on four points, and the agreement was strong rather than unanimous in each case.
Native time tracking exists and is not an add-on. Every platform that discussed the product described time tracking as part of the platform rather than a bolt-on. BigTime provides timers, timesheets, pause/resume, project and task assignment, editing, approval submission, and a save-to-timesheet workflow [13]. Timers permit only one active timer at a time; starting another pauses and saves the current record. Timers have a 24-hour maximum and do not run continuously across midnight [13].
Billable and non-billable categorization is supported. BigTime supports billable, fixed-price, time-and-materials, and non-billable project models, and assignments can distinguish billable from non-billable activity [12]. Separate approval workflows exist for billable and non-billable time [7]. Independent sources describe the same billable-versus-internal split with unbillable time tracked for utilization but excluded from invoices [34].
Tracked time becomes invoices. This is the most consistently supported finding. Time-and-materials invoices pull unbilled time and expenses automatically, calculate amounts using hours and billing rates, and can subtotal by staff member, category, task, role, or labor code [8]. Invoices begin as drafts and become final when sent to the customer [8]. Item-based billing can combine time-and-materials, milestone, percentage-complete, retainer, and non-billable line items on one invoice [9].
Billing rates are configurable and controlled. Project billing rates can use firm-wide base rates with staff- or role-specific exceptions. Rates are updated before invoice creation; once time is attached to an invoice, the rate is frozen unless the invoice is specifically updated [5].
Where the AI Platforms Disagreed or Were Uncertain
Questions explored
- Is BigTime's Advanced and Premier pricing published, or does it require a sales quote?
- How reliable is BigTime's QuickBooks synchronization for billable time and invoices?
The platforms disagreed or hedged on five points.
Advanced and Premier pricing. BigTime's public pricing page confirms an Essentials starting price but does not disclose comparable Advanced or Premier prices in the reviewed material [28]. Third-party sources list $35 and $45 per user per month, but those figures come from independent review sites rather than the vendor [41]. Grok reported a Projector tier at $60 per user per month; Anthropic noted Projector appears in help documentation but not on 2026 pricing pages, leaving its availability unclear [28]. Buyers should treat all non-Essentials figures as estimates.
QuickBooks automation scope. BigTime supports QuickBooks Online and Desktop integrations, but the cited help documentation describes QuickBooks Online synchronization as manual in one workflow, while marketing language may characterize the integration more broadly [6]. QuickBooks Desktop requires the BigTime Sync Agent. Posted data may require deletion in QuickBooks and reposting from BigTime to correct it [6]. Whether the Sync Agent carries a separate charge was not established.
Additional fees. The reviewed sources do not clearly establish whether payment-processing or BigTime Delivery fees are included, usage-based, or separately charged [28]. Add-on modules - Quotes, Resource Management, Data Hub - are described as separately priced with custom pricing [3].
Plan-level feature boundaries. The reviewed sources do not establish whether all plans include identical approval, reporting, mobile, support, or integration limits [3]. Perplexity noted that third-party pricing pages disagree slightly on plan names and included features [37].
Timer and timesheet usability. No independent user reviews comparing BigTime's timer and timesheet experience to competitors, or measuring real-world time-tracking accuracy, were found in the reviewed material [41]. Claims about ease of use are vendor-reported.
Features for this workload
Questions explored
- Does BigTime support role-based billing rates and work-in-progress invoicing for hourly client work?
- Can BigTime handle mixed billing models like time-and-materials, milestone, and retainer on one invoice?
Timer and timesheet capture. BigTime provides native timers, timesheets, pause/resume, project and task assignment, editing, approval submission, mobile timers, and a save-to-timesheet workflow [13]. Cloud-based timesheet entry works across smartphones, tablets, and PCs [3]. The current timer permits only one active timer at a time, with a 24-hour maximum and no continuous run across midnight [13].
Billable versus non-billable categorization. BigTime supports billable, fixed-price, time-and-materials, and non-billable project models, with non-billable projects configurable for internal work [12]. Assignments distinguish billable from non-billable activity [10]. Separate approval workflows route billable time to team leads and non-billable time to managers [7]. Timesheet status tracking covers input, approved, rejected, posted, and invoiced states [2].
Billing-rate accuracy. Project billing rates can use firm-wide base rates with staff- or role-specific exceptions. Rates update before invoice creation and freeze once time is attached to an invoice [5].
Invoice generation from tracked time. Time-and-materials invoices pull unbilled time and expenses, calculate amounts from hours and rates, and subtotal by staff member, category, task, or role [8]. BigTime supports 11 different subtotal types according to one company source [8]. Work-in-progress is relieved when the invoice is finalized [8].
Mixed billing models. Item-based billing can combine time-and-materials, milestone, percentage-complete, retainer, and non-billable line items on a single invoice [9]. Fixed-fee invoicing by task supports milestone or percentage-complete options [4].
Reporting. Essentials includes core time, expense, project, billing, invoicing, reconciliation, and QuickBooks capabilities. Advanced adds custom reporting, project templates, custom invoice templates, and multi-currency expense management; Premier adds multi-currency invoicing and resource allocation [3].
Accounting integration. BigTime supports QuickBooks Online and Desktop, with QuickBooks Desktop requiring the BigTime Sync Agent [6]. Some sources also describe Xero and Sage Intacct integrations with two-way syncs [27]. BigTime reports approximately 2,000 active QuickBooks integrations with 75% of customers using the QuickBooks integration, and an Intuit Marketplace rating of 4.5 out of 5 with 366 reviews [24]. These are company-reported figures.
Client payment features. BigTime includes a client portal for viewing invoices, ACH and credit card payment methods, autopay, and automated payment reminders [27].
Pricing, renewal terms, and ongoing costs
Questions explored
- How much does BigTime cost per user per month, and is Advanced or Premier pricing published?
- What contract, renewal, and cancellation terms apply to a BigTime subscription for billable client work?
Published pricing. Essentials starts at $20 per user per month [28]. This is the only tier with consistent vendor-published pricing across the reviewed sources.
Estimated pricing. Third-party listings place Advanced at approximately $35 per user per month and Premier at approximately $45 per user per month [41]. BigTime's own pricing page routes buyers to a demo request for these tiers, so the estimates may not reflect current or customer-specific terms [28].
Additional fees. Implementation, onboarding, professional services, payment-processing, and premium-support fees are unclear from the reviewed public sources [28]. Add-on modules - BigTime Quotes, Resource Management, and Data Hub - are described as separately priced with custom pricing [3]. QuickBooks Desktop requires the BigTime Sync Agent; whether this creates a separate charge was not established [6].
Contract and cancellation terms. BigTime's published service agreement states that the applicable order form controls the initial term and renewal term, payment obligations are generally non-cancelable and nonrefundable, terms may auto-renew, and customers must provide written non-renewal notice at least 60 days before the current term ends [25]. Renewal-price increases may apply under the service agreement [25]. Anthropic reported finding no contract term, minimum user, or cancellation policy details in its search results, which conflicts with the published service agreement OpenAI cited [41]. Buyers should treat the published service agreement as the more specific source and confirm the exact terms in their order form.
Ongoing costs. A separate QuickBooks subscription may be required for accounting synchronization and is not included in the cited BigTime pricing information [28].
Best Suited For
Questions explored
- Who gets the most value from BigTime for hourly billable client work?
- Is BigTime a good fit for a small consultancy that bills clients by the hour?
BigTime is best suited for professional-services firms that bill hourly or on time-and-materials terms and want tracked time to become invoices without re-entry into a separate billing tool. The sources consistently describe this as the platform's core design intent [8].
Specific fits named across platforms:
- Teams needing project-, role-, staff-, or client-specific billing rates [5].
- Buyers wanting tracked time to flow into invoices and optionally QuickBooks [6].
- Firms needing approval workflows, work-in-progress visibility, custom billing reports, or broader professional-services automation functions [3].
- Agencies with mixed client contracts that combine time-and-materials, milestone, percentage-complete, and retainer billing on one invoice [9].
- Professional-services firms with roughly 5 or more employees that need project profitability visibility alongside time capture [34].
- Teams already using QuickBooks or Xero that want connected time-to-invoice workflows [27].
Probably Not Best Suited For
Questions explored
- Who should not choose BigTime for native time tracking for billable client work?
- Is BigTime overkill for a solo freelancer who only needs a simple timer and basic invoices?
BigTime is probably not the best fit for buyers whose only requirement is a low-cost standalone timer. Multiple platforms flagged this directly.
- Solo users wanting only an inexpensive standalone timer [28].
- Teams unwilling to configure project rates, timesheet workflows, and accounting integrations [3].
- Buyers requiring transparent published pricing for Advanced or Premier without a sales discussion [28].
- Firms needing payroll compliance for non-exempt hourly employees, since BigTime handles client billing workflows rather than wage-and-hour compliance [34].
- Teams whose workflow does not need professional-services-style budgeting, approvals, or reporting [28].
- Buyers prioritizing independent third-party usability reviews before commitment, because none were found for the timer and timesheet experience [41].
When Another Option May Be Better
Questions explored
- What is a better alternative to BigTime for a buyer who needs simple, low-cost time tracking with invoices?
- When should a buyer choose a lighter time tracker or an accounting-first tool instead of BigTime?
Platforms named several alternative scenarios. These are platform-reported recommendations, not independently tested comparisons.
Lightweight time-and-invoicing tools. Choose a simpler tool when the buyer needs only a simple timer, basic billable flags, and straightforward invoices [28]. Named examples include Harvest, Toggl Track, and Clockify for clearer published pricing and simpler timer features [41]. Kimi cited Toggl Track at $9 per user and Paymo at $5.90 per user as lower-cost comparison points [34].
Broader enterprise PSA. Choose a broader enterprise platform when the buyer requires advanced resource planning, complex utilization analytics, or highly customized financial controls beyond the selected BigTime tier [3]. Named examples include Mavenlink, Kantata, and Kimble [41].
Accounting-first products. Choose an accounting-first product when invoicing and accounting, rather than project delivery and professional-services management, are the primary requirements [28]. QuickBooks Time was named for accounting-native billing [41].
General project management suites. Choose a broader project management suite when the buyer primarily needs general project management with lightweight timers; Asana and ClickUp were named [41].
Freelancer-focused billing. FreshBooks was named for freelancers and consultants billing hourly or by project, with flat monthly pricing rather than per-user pricing [35].
Questions to ask before choosing a provider
Questions explored
- What should a buyer confirm with BigTime before signing a contract for billable time tracking?
- Which BigTime plan features must be confirmed in writing before purchase?
The platforms collectively produced a long verification list. The recurring items:
- What is the total per-user price for Advanced or Premier, and is billing monthly or annual? [28]
- Are there minimum user counts, minimum contract terms, implementation fees, or required paid onboarding? [28]
- Are payment-processing fees charged for BigTime Delivery, and can buyers disable or avoid that service? [28]
- Which timer, mobile, approval, custom-field, reporting, and invoice-template features are included in the quoted plan? [3]
- Can the system enforce billable/non-billable defaults, rounding rules, locked periods, approvals, and late-entry controls? [3]
- How does the quoted plan handle rate changes, write-ups and write-downs, retainers, caps, overtime, and client-specific billing rules? [5]
- Does QuickBooks Online sync automatically or require manual posting for the exact records the buyer needs? [6]
- What happens to historical time, invoices, and rate data if the subscription is canceled? [25]
- What notice period and renewal-price protections will appear in the buyer's order form? [25]
- Can the buyer test the full timer-to-approved-timesheet-to-invoice-to-QuickBooks workflow with representative projects before signing? [3]
Anthropic additionally raised whether rejected time can be resubmitted without losing audit trail, whether invoices can be amended after finalization without breaking QuickBooks integration, and whether time-off tracking or PTO accrual exists in any tier [41].
The consensus assessment
BigTime is a strong fit for native time tracking for billable client work, with a clear limitation on pricing transparency. Four of seven platforms named it during ranking, and all seven rated it either a strong or good fit for this use case. The consensus rests on a well-documented chain: native timers and timesheets capture hours, billable and non-billable categorization is enforced at entry and approval, configurable billing rates apply, and time-and-materials invoices generate from unbilled work-in-progress with optional QuickBooks synchronization.
The consensus does not extend to cost predictability. Essentials is published at $20 per user per month, but Advanced and Premier pricing is not consistently published and may require a sales quote. Contract terms include non-cancelable payment obligations, nonrefundable amounts, automatic renewal, and a 60-day non-renewal notice requirement. No independent evidence was found validating timer usability or real-world tracking accuracy against competitors.
For a small consultancy that bills clients by the hour and wants hours to flow into categorized client invoices without manual re-entry, BigTime belongs on the shortlist. Buyers should request written Advanced or Premier pricing, confirm the QuickBooks synchronization scope for their exact records, and test the full timer-to-invoice workflow before committing to a multi-user rollout.
How This Review Was Produced
This review aggregates fit-research responses from seven AI platforms asked the same question: which project management or collaboration software providers they would recommend for a small consultancy that bills clients by the hour and needs built-in time tracking that flows into accurate, categorized client invoices without manual re-entry into a separate billing tool.
Platforms evaluated fit for this use case. Four of the seven - Anthropic, DeepSeek, Kimi, and OpenAI - named BigTime during ranking discovery. The remaining platforms contributed fit analysis without naming BigTime in the ranking stage. Rankings, fit ratings, strengths, limitations, pricing details, and verification questions were extracted from each platform's response and compared.
The study date is 2026-10-02. Platform-reported research dates differ: Anthropic reported 2026-01-15 and DeepSeek reported 2026-06-01, while Google, Grok, Kimi, OpenAI, and Perplexity reported 2026-10-02. Platform-reported dates are provenance metadata and do not independently prove freshness.
All citations are platform-reported evidence, not independently verified facts. Company-owned citations materially outnumber independent citations in the reviewed material. Claims sourced only to BigTime documentation or marketing pages are labeled as company-reported or vendor-reported where relevant. No-search model claims require explicit verification before being described as current facts.
Research limitations
Several limitations apply to this review.
Citation balance. Company-owned sources materially outnumber independent sources. BigTime's own help center and marketing pages supply most of the feature-level detail. Company claims should not be read as independently verified.
Pricing uncertainty. Only Essentials pricing is consistently published. Advanced, Premier, and any enterprise or negotiated terms were not publicly confirmed in the reviewed sources. Third-party estimates may not reflect current or customer-specific terms.
Conflicting contract information. OpenAI cited a published service agreement with specific non-cancelable, nonrefundable, auto-renewal, and 60-day notice terms. Anthropic reported finding no contract, minimum user, or cancellation policy details. The published service agreement is the more specific source, but buyers should confirm terms in their own order form.
Unresolved plan boundaries. The reviewed sources do not establish whether all plans include identical approval, reporting, mobile, support, or integration limits. BigTime's help-center package descriptions and current pricing page differ in emphasis.
No independent usability evidence. No independent user reviews comparing BigTime's timer and timesheet experience to competitors, or measuring real-world time-tracking accuracy, were found in the reviewed material.
Unverified URLs. The supplied URLs were collected from platform responses and were not independently validated by the writer stage.
Platform-reported research dates. Anthropic and DeepSeek reported earlier research dates than the authoritative run date. Their findings may reflect older product or pricing states.
Agreement is not quality proof. That multiple AI platforms recommended BigTime does not prove product quality or performance. It reflects the sources those platforms retrieved and how they weighed them.
Explore more project management and team collaboration software guidance in the category directory.
Sources
Company-Owned Sources
- Time, Billing, Project Management, and PSA Software: https://get.bigtime.net/time-tracking/
- The Timesheet Workflow – BigTime Help Center & Support: https://help.bigtime.net/hc/en-us/articles/10087134161303-The-Timesheet-Workflow
- BigTime's Pricing Packages: https://help.bigtime.net/hc/en-us/articles/10120319278743-BigTime-s-Pricing-Packages
- Invoicing by Task – BigTime Help Center & Support: https://help.bigtime.net/hc/en-us/articles/10268385798935-Invoicing-by-Task
- Setting Up Billing Rates: https://help.bigtime.net/hc/en-us/articles/10408196912663-Setting-Up-Billing-Rates
- QuickBooks Integration 101: https://help.bigtime.net/hc/en-us/articles/10576017820951-QuickBooks-Integration-101
- Billable/Non-Billable Approval – BigTime Help Center & Support: https://help.bigtime.net/hc/en-us/articles/10989779575831-Billable-Non-Billable-Approval
- Creating Time/Materials Invoices: https://help.bigtime.net/hc/en-us/articles/11075673996951-Creating-Time-Materials-Invoices
- How To Use Item-Based Billing: https://help.bigtime.net/hc/en-us/articles/11569615852823-How-To-Use-Item-Based-Billing
- Manage Assignments in BigTime Resource Management: https://help.bigtime.net/hc/en-us/articles/18312774952343-Manage-Assignments-in-BigTime-Resource-Management
- Using Timers in BigTime Mobile: https://help.bigtime.net/hc/en-us/articles/20622978439959-Using-Timers-in-BigTime-Mobile
- Project Billing Models in BigTime Resource Management: https://help.bigtime.net/hc/en-us/articles/22189812051863-Project-Billing-Models-in-BigTime-Resource-Management
- Using Timers in BigTime: https://help.bigtime.net/hc/en-us/articles/26270324242711-Using-New-Timers-in-BigTime
- Using Timers in BigTime – BigTime Help Center & Support: https://help.bigtime.net/hc/en-us/articles/26270324242711-Using-Timers-in-BigTime
- Keito - Time Tracking & Invoicing for Professional Services: https://keito.ai/
- bigtime software, inc. - LinkedIn company overview: https://linkedin.com/company/bigtime-software-inc-
- ebillity - LinkedIn company overview: https://linkedin.com/company/ebillity
- projector by bigtime - LinkedIn company overview: https://linkedin.com/company/projector-psa
- Best Accounting Software for Engineering Firms (2026) - BigTime: https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEcSl6dij7ez6SAwVKJH_UFiUAiUm5IvW_6Z984RNToLqFu406T_RDQXKPJIM8-bShxj4qDE6mQNVUiXkbyRgD5e2oqHGNkCtGiwZh6ju5p78TBvmw03V2vPdUTxz8-uo1xrc2nrppAGR7xIsm-HlFTKttN_cGgCntaZg7EulY=
- PSA Time Tracking: Best Software for Billing & Hours - BigTime: https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEmVDRkva_iUPGlAbRBq86VBhQMWnRWT_l1JrcCrY4Ri-gKEvD4AcxQoB5CYoS92onIPEX36d7kP2CRYCiylpmPCffr6croxvjrrrtah1LkULRVcnXBroAxZZEmer3Ry-0Lzli_g94=
- BigTime: The Leading Professional Services Software: https://www.bigtime.net/
- Access Service Agreement: https://www.bigtime.net/access-service-agreement/
- Digital Timesheet - bigtime.net: https://www.bigtime.net/digital-timesheet/
- Features: Billing & Invoicing - BigTime: https://www.bigtime.net/features/billing-and-invoicing-software/
- Pricing - Professional Services Automation Software: https://www.bigtime.net/pricing/
- Time & Expense Tracking Software for Invoicing | BigTime: https://www.bigtime.net/time-expense-invoicing-software/
- Official pricing and terms source: https://www.bigtime.net/terms-of-use/
Independent Sources
- Bill4Time Review (2026: https://caseledge.com/vendors/bill4time/
- FreshBooks Review: Strong Client Billing, With Seat Fees and Client Caps: https://cpaadvisor.us/articles/freshbooks-review/
- BigTime Software: Reviews, Pricing and Free Demo | FindPM - 2026: https://findpmsoftware.com/products/bigtime-software
- Billing and Time Tracking Software: 9 Compared: https://firsthr.app/compare/time-tracking/billing-and-time-tracking-software
- FreshBooks Review 2026: Is It Still the Best for Freelancers?: https://reviewedstack.com/finance-invoicing/freshbooks-review-2026/
- BigTime Reviews, Pricing & Alternatives (2026) | Toolradar: https://toolradar.com/tools/bigtime
- Plan & Pricing: https://us.fitgap.com/products/011574/bigtime
- BigTime Pricing 2026 - Capterra: https://www.capterra.com/p/131076/BigTime/pricing/
- BigTime Pricing 2026: https://www.g2.com/products/bigtime/pricing
- BigTime Software Overview 2026 - Features & Pricing: https://www.softwareadvice.com/project-management/bigtime-profile/
Other Sources
- BigTime on Intuit App Center: https://apps.intuit.com/app/apps/profile/bigtime
ChatGPT
Claude
DeepSeek
Grok
Perplexity
Kimi
Gemini