Your Team Already Did the Work. The Invoice Says Something Else.
Unbilled hours. Scope creep nobody flagged. Time logged in Clockify that never made it onto the QuickBooks or Xero invoice.
Reconciling time against invoices across QuickBooks, Xero, and Zoho eats hours every month and still misses things. We automate the match, catch the gaps before an invoice goes out, and give you one dashboard across every client.
of billable work never makes it into time tracking
avg. realization rate once billing and collection combine
spent monthly reconciling time entries to invoices
clients is typically where manual reconciliation breaks down
of accountant time often spent on manual data entry
higher realization rate reported with automated reconciliation
Sources: BirdView PSA; Deltek Clarity Benchmark; RelayFI; G2/Capterra practitioner reviews, 2026
Trusted by businesses worldwide
Works Inside What You Already Have. Touches Nothing You Do Not Want Us To.
No migration.
We connect to QuickBooks, Xero, Zoho, and your time-tracking tool via API. Nothing moves. Nothing changes. Your team keeps working exactly as they do today.
No new software to buy.
We are not replacing your stack. We are the intelligence layer between the tools you already pay for.
No change management.
Your accountants do not learn a new system. Your clients do not see anything different. We work in the background.
No sensitive data on our servers.
We read from your existing tools via authenticated API connections. Your financial data never leaves your systems. We see patterns, not records.
No long implementation.
Most clients are running within three weeks. We do the build. You review the output.
No commitment to start.
The first step is a free audit. We map your cycle, find what is sitting uncollected, and show you the numbers. You decide what to do next.
Here Are Two We Just Finished
Both built and operated for a multi-client accounting firm, as a fully managed service we run for them, not software they had to install, configure, or maintain.
Invoice Generation & Payment Reconciliation (Zoho)
Invoice Correction & Dispute Management (Xero)
The Revenue Doesn't Disappear. It Gets Lost Between the Timesheet and the Invoice.
What you just saw in that Zoho example is not a one-off. Every multi-client firm we audit has the same pattern: hours get logged, work gets done, but the number that lands on the invoice doesn't match what was actually delivered. Nobody catches it until a client questions the bill, or nobody catches it at all.
"Revenue leakage is billable value your firm earned in delivery but never collected. It is lost in the gap between work performed, hours approved, invoice issued, and cash received."
BirdView PSA, 2026Hours That Never Reach a Timesheet
Quick client calls, email correspondence, small fixes between tasks - work that happened but was never logged. A five-person firm losing 30 minutes a day per person adds up fast at any reasonable hourly rate.
Unlogged time is the most common source of leakageScope Creep Nobody Bills For
Extra work gets absorbed into the existing retainer instead of triggering a change order. It feels like good client service. It is actually a fee increase you never charged.
Habitual discounting, not exception-basedTime Tracking and Invoicing Live in Different Tools
Clockify or Harvest logs the hours. QuickBooks or Xero sends the invoice. Nothing keeps them in sync, so someone has to manually match them every billing cycle.
20-50 hrs/month spent reconciling, per firm30+ Clients and the Spreadsheets Stop Working
Toggling between 30 sets of books, each with its own account structure and invoice template, turns a five-minute task into a full day. Growth stalls because ops can't keep up.
Most firms hit the wall between 15 and 50 clientsWrite-Offs With No Paper Trail
Hours get written off at month-end with no review of why. It becomes routine instead of the exception it should be, and nobody is tracking the total.
No mechanism to catch it before it's goneNo Visibility Until It's Too Late
Realization rates get calculated per project, not across the client roster. By the time a report surfaces the gap, 30 days have passed and the hours are effectively unrecoverable.
Billing × collection realization often lands near 77%Multi-Client Reconciliation Breaks Down in Predictable Stages
This isn't about how organized your team is. It's about how many sets of books one person can hold in their head at once.
Clients
Document collection alone starts becoming a bottleneck. Still manageable by hand, barely.
Clients
Manual reconciliation overwhelms most firms regardless of staffing. Toggling between 30 sets of books daily becomes a job on its own.
Clients
Automation stops being optional. Firms that don't automate hit a hard ceiling on how many clients they can profitably serve.
We Match It. We Flag It. We Keep the Books in Sync.
We sit between your time-tracking tool and your accounting system, catch the gaps before an invoice goes out, and give you one place to see reconciliation status across every client. No migration, no new software, no work for your team.
This runs on top of your existing accounting stack: invoice automation to keep QuickBooks and Xero accurate, and AR automation to catch what's not reconciled. See the full order-to-cash guide for how it all connects.
Time Entries Matched to Invoices Automatically
Every logged hour in Clockify or Harvest is matched against what actually gets invoiced in QuickBooks or Xero, no manual cross-referencing required.
Discrepancies Flagged Before You Send the Invoice
Overbilled, underbilled, or missing line items get caught and routed for review before the client ever sees them, not after they dispute it.
Scope Creep Gets a Paper Trail
When work happens outside the original retainer scope, it's flagged for a billing decision instead of silently absorbed.
One Dashboard Across Every Client
See realization rate, unbilled hours, and reconciliation status across your entire roster, not one project or one set of books at a time.
Reconciliation Runs in Minutes, Not Days
What used to take 20-50 hours a month of toggling between platforms runs as an automated match, with only genuine exceptions surfaced for review.
Works Across QuickBooks, Xero, and Zoho
One reconciliation layer sits above whichever combination of accounting and time-tracking tools your firm already uses.
Billing Reconciliation Flow with RevExOS
Time Logged
Clockify / Harvest, hours tracked per client
Invoice Drafted
QuickBooks / Xero, based on logged time or retainer
RevExOS Match Layer
We compare logged time against the draft invoice, line by line
Discrepancies Flagged
Overbilled, underbilled, or missing items routed for review
Invoice Sent, Reconciled
Confirmed accurate before it reaches the client
Works with your existing stack
What Typically Surfaces in the First Reconciliation Audit
spent monthly reconciling time entries to invoices, per firm
average realization rate once billing and collection combine
of accountant time often spent on manual data entry
Source: BirdView PSA; RelayFI industry research, 2026
Three Phases. We Handle All of It.
This is a fully done-for-you engagement, not software you configure yourself. We audit, build, and operate everything on top of your existing tools. Your team shows up on day one of go-live and uses the dashboard. That's it.
We take full accountability and ownership, not just delivery.
Most vendors hand you software and walk away. We stay accountable to the outcome: measurably fewer unbilled hours, reduced reconciliation time, and a live dashboard your controller can trust. If the numbers don't move, we don't consider the job done.
Billing Reconciliation Audit
Free: We Do ItWe map how time gets logged, approved, and invoiced across every client, and quantify what's slipping through. You share access, we do the rest.
- →We map your full Time Tracking → Approval → Invoice flow, per client
- →We identify every gap between logged hours and what actually got billed
- →We trace your last 3 months of invoices against time entries
- →We quantify your realization rate and reconciliation time cost
- →Delivered as a Revenue Integrity Report, yours to keep, no strings
30 minutes of your time. We handle the rest.
Build Matching and Flagging Automations
Done-For-You BuildWe build everything on top of your existing tools. No migration, no new software to buy, no extra work for your team. Your stack stays exactly as it is; we add the reconciliation layer between systems.
- →Time-to-invoice matching: logged hours compared against draft invoices automatically
- →Discrepancy flagging: overbilled, underbilled, and missing items caught before send
- →Scope creep alerts: work outside the retainer triggers a billing review
- →Cross-platform sync: QuickBooks, Xero, Zoho, and your time tracker kept in agreement
- →Audit trail: every match, flag, and correction logged automatically
Zero migration. Zero extra work for your team.
Revenue Tracker and Live Dashboard
We Operate It OngoingWe stand up a single live view of reconciliation across your entire client roster and keep it running. Your team just uses the dashboard. No training required, no new tools to learn, no maintenance burden.
- →Live realization rate across your entire client roster
- →Unbilled hours and reconciliation status by client, updated automatically
- →Scope creep and write-off tracking with a reason attached to every one
- →Month-end close readiness, no more manual spreadsheet matching
- →Monthly revenue integrity score, benchmarked and reported by us
Measurable reduction in unbilled hours, tracked every month.
Built for Multi-Client Firms Where Every Engagement Bills Differently
If you manage time-based, retainer, or bundled billing across 15+ clients and your reconciliation still happens in spreadsheets, revenue is slipping through the gaps every month.
Staffing / Temp Accounting Firms
Variable-rate billingEvery hour has a different rate depending on role, client, and engagement type. Scope creep is constant and retainers go underutilized without anyone noticing.
Multi-Service Accounting Firms
Bundled retainersTax, bookkeeping, and advisory bundled into one retainer make it hard to track which hours apply to which service, so reconciliation means real manual spreadsheet work every month.
Scaling Practices (15-50 Clients)
Where automation stops being optionalThe growth inflection point where manual reconciliation breaks down. Month-end close stops scaling with headcount and becomes the bottleneck on adding new clients.
M&A / Restructuring Practices
High dollar value per engagementComplex, high-touch mandates where scope expands mid-engagement. Separating original scope from change orders, then reconciling invoices accurately, is expensive to get wrong.
Multi-Platform Firms (QB + Xero + Zoho)
Reconciliation across 3+ toolsManaging time and invoicing across three or more platforms by hand invites errors. No single source of truth means manual export and re-entry every cycle.
Outsourced Accounting Practices
Margin depends on reconciliation speedLarge teams managing 50+ client accounts on thin margins, where headcount can't grow proportionally with the roster. Efficiency is the only lever left to pull.
You're a fit if you answer yes to any of these:
Quote-to-Cash Automations We've Built
Automatic Invoice Generation (Xero & QuickBooks)
Payment Reconciliation Workflows (Stripe & PayPal)
Invoice Dispute Management AI Agents
What Clients Say After We Automate Their Operations
Real outcomes from B2B service businesses that went from manual, leaking revenue cycles to automated, measurable cash flow.
“RevExOS was very helpful and knowledgeable as well as being prompt with communication and readily available to work on the project of linking LMS orders to Xero invoices.”
Adam Reynolds
MD · Springfit
“The project was completed to our expected standard.”
Rajesh K.
Founder · IQ Invoice (AP Platform)
“If you are thinking about automating anything, RevExOS is the team you need to hire. They are the best automation experts I have ever worked with. Their ability to understand what you are trying to accomplish and then translate that into a simple, low-cost automation is invaluable. They will save you thousands of hours and thousands of dollars.”
Chris Harvey
Founder · LeadlyPro
“RevExOS has been very patient with me discovering new ways to solve complex problems in AI automation. I can recommend them as a team that can quickly learn and adapt to new technologies and will solve problems as they arise instead of freezing.”
Aivis A. Atvars
Founder · Limitless Now
“RevExOS exceeded expectations in N8N automations with flawless, detail-oriented code and impressive expertise. Their quick responsiveness and cooperative nature made the collaboration smooth and efficient. HIGHLY RECOMMEND working with them!”
Corey Pearson
Founder · Brand Metrics US
“He did an amazing job setting up my automation. They were highly knowledgeable, efficient, and professional throughout the entire process. Communication was clear, and they went above and beyond to ensure everything was working perfectly. Highly recommended and will definitely hire again!”
Michael Paim
Founder · Paim Corp
“RevExOS has worked some automation magic! They have been able to make all the functionalities requested while suggesting improvements and in short amount of time.”
Cesar Ramirez
Founder · Ram Geo Properties
“RevExOS's work in software development is truly impressive. Their attention to details and deep understanding ensured a smooth experience. Quick responsiveness and timely delivery made the first phase of the project seamless.”
Rom G.
“We are delighted to have RevExOS on board for this project; their responsiveness and efficiency were evident as they successfully concluded the project ahead of schedule.”
Sneha
ThinkGeStalt
Why Firms Choose Us Over Software
Enterprise reconciliation platforms solve this for companies with dedicated finance ops teams and six-figure budgets. QuickBooks, Xero, and Zoho are accounting tools, not a reconciliation layer.
RevExOS vs. Enterprise Reconciliation Platforms
Tools like BlackLine and FloQast solve close and reconciliation for companies who can staff a dedicated finance ops implementation and a multi-month rollout.
| Capability | RevExOS | BlackLine | FloQast |
|---|---|---|---|
| Works with QuickBooks/Xero/Zoho stack | ✓ | ✗ | Partial |
| Setup in weeks, not months | ✓ | ✗ | Partial |
| Pricing accessible for 15–50 client firms | ✓ | ✗ | ✗ |
| Time-to-invoice matching, not just GL reconciliation | ✓ | ✗ | ✗ |
| Built for professional services billing | ✓ | ✗ | Partial |
| Scope creep / discrepancy flagging | ✓ | ✗ | ✗ |
| Free reconciliation audit before you commit | ✓ | ✗ | ✗ |
Why QuickBooks, Xero, and Zoho Can't Solve This Alone
QBO, Xero, and Zoho are excellent accounting tools. They record what's already been invoiced. They don't compare that against what was actually logged in your time-tracking tool.
| What You Need | RevExOS | QBO / Xero / Zoho |
|---|---|---|
| Match logged time against invoiced amounts automatically | ✓ | ✗ |
| Flag overbilled or underbilled invoices before sending | ✓ | ✗ |
| Detect scope creep that was never billed | ✓ | ✗ |
| Cross-client realization rate visibility | ✓ | ✗ |
| Reconcile across multiple accounting platforms at once | ✓ | ✗ |
| Audit trail on every correction and write-off | ✓ | Basic only |
| Invoice and payment tracking | ✓ | ✓ |
The Real Reason QBO/Xero/Zoho Can't Fix This
They only see what's already been entered as an invoice. They have no visibility into what was actually logged in Clockify or Harvest, or whether that matches what got billed. They're the last mile. The gap starts upstream, in the reconciliation step nobody automated.
See How Much Revenue Is Sitting Unreconciled Right Now
We map your time-tracking-to-invoice flow across every client, trace your last 90 days of invoices against logged hours, and show you exactly what's unbilled or mismatched. No cost, no commitment.
What You'll Get
Reconciliation Gap Analysis
Every mismatch between logged time and invoiced amounts, traced to root cause.
Time Waste Audit
Hours your team burns each month manually matching time entries to invoices.
Realization Rate Benchmark
How your billing × collection realization compares to typical multi-client firms.
Reconciliation Roadmap
Actionable plan to close the gaps and get every client's books reconciled automatically.
Email us directly
contact@revexos.comNot ready for a strategy audit call yet? Try our free AI-powered Q2C Stack Audit → or see the full quote-to-cash integration offering →
Not sure if RevExOS fits? Ask ChatGPT if it solves your problem
Frequently Asked Questions
- What is billing reconciliation automation?
- It's the process of automatically matching the hours your team logs against what actually gets invoiced in QuickBooks, Xero, or Zoho, flagging any gaps before the invoice goes out. RevExOS builds this on top of your existing time-tracking and accounting tools.
- What types of firms does RevExOS serve?
- RevExOS works with multi-client accounting, bookkeeping, staffing, and professional services firms managing 15+ client accounts across QuickBooks, Xero, or Zoho, where time tracking and invoicing live in separate systems.
- Does RevExOS replace QuickBooks, Xero, or my time-tracking tool?
- No. RevExOS is built on top of your existing stack. It connects to Clockify, Harvest, QuickBooks Online, Xero, and Zoho Books - reconciling data between them without requiring a migration.
- How long does it take to set up RevExOS?
- Most clients go live within weeks, not months. The engagement starts with a free Billing Reconciliation Audit, followed by a core build phase where the matching and flagging automation is deployed on your existing tools.
- How much does RevExOS cost?
- RevExOS engagements typically range from $12,000 to $24,000 annually - significantly less than enterprise platforms like BlackLine or FloQast, which usually require a dedicated finance ops budget and a multi-month implementation. The engagement starts with a free Billing Reconciliation Audit at no cost or commitment.
- What is a Billing Reconciliation Audit?
- A free diagnostic where RevExOS maps how time gets logged and invoiced across your client roster, traces your last 90 days of invoices against logged hours, and delivers a report identifying exactly where reconciliation gaps exist. No sales pitch, no commitment - just data.
- How much unbilled revenue does RevExOS typically help firms recover?
- It varies by firm size and billing model. Industry research puts typical unbilled and leakage rates at 8-15% of revenue across multi-client firms - the audit shows you your specific number before you commit to anything.