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Professional Services Billing Automation

Stop Losing Revenue to Unbilled Work.

0% of professional services revenue goes unbilled every year

Singoa automates the full professional services billing cycle — from timesheet capture and WIP aging through retainer replenishment, milestone invoicing, and collections. Zero unbilled hours. Faster cash. Better margins.

WIP Balance
$624K
Across 42 active engagements
Utilization Rate
84%
Up 12pts since automation
Active Retainers
18
$40,500 MRR secured
Avg Collection Days
22d
Down from 55d industry avg
96%
Collection rate
Singoa professional services data
55→22d
DSO reduction
Avg across PS clients
4%
Unbilled WIP (down from 18%)
Singoa platform data
$890K
Annual WIP recovery
Median mid-market PS firm

Connects with your professional services tech stack

BT
BigTime
KN
Kantata
DL
Deltek
HV
Harvest
QB
QuickBooks
XR
Xero
SF
Salesforce
HS
HubSpot
BT
BigTime
KN
Kantata
DL
Deltek
HV
Harvest
QB
QuickBooks
XR
Xero
SF
Salesforce
HS
HubSpot
The Professional Services Billing Problem

Why Does Professional Services WIP Keep Getting Left Unbilled?

Professional services firms lose more revenue to billing gaps than to bad clients. Time entries that never get invoiced, retainers that lapse, milestones that slip past without a bill — these invisible leaks compound into six-figure losses every year.

12%
Of professional services revenue goes unbilled annually — time entries approved but never invoiced
Association of Legal Administrators / AICPA Billing Survey 2024
55 days
Average DSO for professional services firms — cash tied up in completed but uncollected work
Dun & Bradstreet Professional Services Payment Data 2024
82%
Collection rate at the average professional services firm — 18 cents of every billed dollar uncollected
AICPA / CIMA Finance Benchmarking Report 2023
14 days
Average billing delay from timesheet approval to invoice generation — cash-flow gap every billing cycle
BigTime Software State of Professional Services Report 2024
1 in 5
Retainer clients experience a billing gap when retainer balances aren't replenished on time
Clio Legal Trends Report 2023 / BigTime PS Survey
$890K
Average annual WIP leakage at a mid-market professional services firm with 50+ timekeepers
Singoa internal analysis, customer onboarding data 2024–2025
Implementation

Live in Days, Not Months.

Singoa connects directly to your PSA and accounting systems. No manual exports. No re-keying. Your existing timesheet and billing workflows stay intact — we automate everything after approval.

01
Day 1–2

Connect Your Systems

Time entries, projects, and client data flowing automatically

  • One-click integration with BigTime, Kantata, Deltek, or Harvest
  • QuickBooks or Xero accounting sync for invoice and payment data
  • Historical WIP data imported — open balances reconciled at launch
  • Active retainers, engagement letters, and billing rates configured
02
Day 3–5

Baseline Your WIP

AI maps billing patterns and surfaces every revenue gap

  • AI analyzes WIP aging — all unbilled hours flagged by age and amount
  • Retainer balance forecasting — replenishment dates predicted
  • Milestone billing triggers configured per engagement contract
  • Collections risk scoring on all outstanding invoices
03
Week 1 onward

Bill Faster, Collect More

Automated billing cycle with zero unbilled hours

  • Approved time entries converted to invoices within 24 hours
  • Retainer replenishment invoices auto-generated when balance hits threshold
  • Milestone billing triggered on project completion events
  • Collections follow-ups automated at 7, 14, and 30 days past due
Platform

How Does Singoa Automate WIP Billing?

Four purpose-built modules covering the full professional services billing lifecycle — from WIP aging through retainer management, timesheet billing, and project profitability.

Zero Unbilled Hours — Guaranteed

Every approved hour is tracked, aged, and surfaced for billing. Singoa pulls time entries from your PSA system, identifies WIP that's ready to invoice, and flags hours at risk of write-off before they age past your billing policy.

  • Live WIP balance dashboard by project, client, partner, and timekeeper
  • WIP aging buckets: current, 15d, 30d, 60d, 90d+ with write-off risk scores
  • Unbilled hours alert: approved entries not yet invoiced after configurable threshold
  • Auto-invoice draft generation from billable WIP on billing cycle date
  • Write-down and write-off workflow with partner approval and reason capture
  • WIP turnover rate tracking — portfolio-level billing efficiency metric
  • Client billing cap enforcement: flags hours exceeding budget thresholds
WIP Dashboard
42 active engagements
$624K
Total WIP
84%
Utilization
18
Active Retainers
22d
Avg Collection
PRJ#ClientEngagementUnbilled HrsUnbilled $WIP AgeStatus
PRJ-3301Meridian CorpDigital Transformation
64h
$51,20028d
Bill-Ready
Recent Time Entries — PRJ-3301
Generate InvoiceView All
J. Harrison8.0h@ $800Stakeholder workshop — digital roadmap review
M. Chen6.5h@ $650Technical architecture assessment and documentation
S. Patel4.0h@ $450Data migration analysis — phase 2 scoping
PRJ-3302Cascade LLCTax Advisory
18h
$14,40012d
In Review
PRJ-3303Vertex PartnersLitigation Support
92h
$73,60041d
Accruing
PRJ-3304Northfield GroupAudit FY2025
6h
$4,8003d
On Hold
PRJ-3305Ironclad IndustriesProcess Consulting
31h
$24,80017d
Retainer
BigTime sync · 2m ago
Results

What Professional Services Billing Results Can You Expect with Singoa?

Real results from professional services firms that replaced manual billing workflows with Singoa AR automation.

MetricBeforeWith Singoa
Unbilled WIP Rate18%4%
Collection Rate82%96%
Average Collection Days (DSO)55 days22 days
Time to Invoice from Approval14 days<24 hours
Retainer Lapse Rate22%<1%
Write-off Rate4.8% of WIP1.1%
Billing Staff Time per Week20 hrs / week3 hrs / week

Singoa customer data — median outcomes across professional services client base, 2024–2025.

ROI Calculator

Calculate Your Professional Services AR ROI.

See what eliminating unbilled WIP, automating retainer billing, and faster collections are worth to your firm. Adjust the sliders for your volume.

Your Numbers

40 projects
5 projects500 projects
$45,000
$5000$500,000
15%
2%25%

Estimates based on median outcomes from Singoa professional services clients. Actual results vary by firm size, billing model, and engagement complexity. Does not include indirect value from improved partner capacity and reduced write-offs.

Net Annual ROI50x return
$0.0

After Singoa cost of $120/mo

Issues Prevented/mo
~0.0
projects
Revenue Recovered/mo
$0.0
from prevented issues
Rework Savings/mo
$0.0
@ $0/issue
Staff Hours Saved/wk
0.0+
on manual AR tasks
Monthly: Singoa Cost vs Savings
Singoa$120/mo
Total Savings$54,000/mo
DSO improvement: 33 days
Integrations

Built for Your Professional Services Stack.

Singoa connects natively to the PSA, CRM, and accounting tools your firm already uses. No new workflow to learn — just faster billing.

PSA & Time Tracking

PSA
BIBigTimeKKantata (Mavenlink)DDeltek VantagepointHAHarvestRRepliconTTimeSolv

CRM & Sales

CRM
SalesforceHubSpotMMicrosoft DynamicsZoho CRMCClio (legal)AAccelo

Accounting & Finance

ACCT
QQuickBooks OnlineXeroSage IntacctNetSuite logoNetSuiteFFreshBooksBBill.com
Security

Built for Professional Services Compliance Requirements.

Professional services billing involves engagement letter compliance, trust accounting requirements, data confidentiality obligations, and audit readiness. Singoa handles all of it automatically.

Privacy Dashboard
Last 30 days100% Compliant
256-bit
AES Encryption
99.97%
Platform Uptime
0
Data Breaches
Privacy Actions (7d)
Masked Filtered
MTWTFSS

Engagement Letter Compliance

Billing terms, rate schedules, and scope limits enforced automatically against engagement letter parameters. Scope creep alerts before invoicing.

Immutable Audit Trail

Every time entry, billing decision, write-down, and invoice action is hash-chain logged. Full audit trail for partner reviews and disputes.

Data Confidentiality

Client matter data isolated per firm and per client. Zero cross-firm data access. Data Protection compliant data handling and deletion policies.

Trust Accounting Support

Retainer and advance billing managed in compliance with professional trust accounting rules. Separate tracking of earned vs. unearned fees.

GAAP Revenue Recognition

WIP recognition, billing milestone accounting, and retainer revenue recognition aligned with ASC 606 and GAAP standards.

Client Results

What Professional Services Teams Are Saying.

Realization rate: 74% → 91%; $290K unbilled WIP recovered
We had partners who were billing 60-hour weeks but our realization rate was only 74%. Singoa surfaced $290,000 in approved but uninvoiced time in the first audit. The automation didn't just fix billing — it changed how we run our practice. Realization is now 91%.
Thomas R.
Managing Partner · Harrison & Webb Advisory
New York, NY

Frequently Asked Questions

Everything you need to know before making the switch.

Get Started

See Singoa for Your Professional Services Firm.

Get a personalized walkthrough of WIP automation, retainer billing, and collections — built for how your firm actually bills and collects.

No credit card required · Encrypted end-to-end

No commitment required
Live demo with PS billing specialist
See your PSA data in Singoa
Setup in under 5 days