Growing businesses that need more accounting capacity
Transaction volume, entities or reporting needs are increasing faster than the current team can absorb.
Client Accounting Services
Accounting that keeps pace with your growth.
A dedicated GSC team takes on your recurring accounting (bookkeeping, reconciliations, payables, receivables, the month-end close and reporting) inside the systems you already use. Your books stay current without another hiring cycle.
Example · month-end closeOctober books
Day 4 of 6- Bank and card reconciliationsMatched
- Bills coded and payments scheduledAP
- Customer payments appliedAR
- Accruals and adjustmentsIn review
- Management report packDue Nov 6
GSC
Your GSC teamA senior accountant reviews every entry before it reaches you.
✦ Inside QuickBooks, Xero,
NetSuite or Sage
NetSuite or Sage
Books current.
Close on time.
Close on time.
Definition
What are Client Accounting Services?
Client Accounting Services (CAS) is an outsourced accounting model in which an external team runs a business's ongoing accounting work every month.
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Instead of hiring and managing every accountant in-house, the business hands its recurring accounting work (bookkeeping, reconciliations, accounts payable and receivable, the month-end close and financial reporting) to a dedicated GSC team that works inside its existing systems, so the business adds accounting capacity without hiring for every role.
CAS is broader than bookkeeping. Bookkeeping records transactions; CAS covers the full recurring accounting cycle, delivered as an ongoing function rather than a one-off project.
In simple terms
CAS means an outside accounting team keeps your books accurate and up to date every month, so your own people don't have to carry all of it.
Who It's For
Is your accounting work outgrowing your team?
CAS fits when the accounting work is real and recurring but building a bigger in-house team isn't the right answer yet.
Businesses hitting accounting bottlenecks
The close slips, reconciliations wait or one person holds the whole process in their head.
Companies that want more support without adding headcount
You need the work done reliably, without running another recruitment and onboarding cycle.
CPA and accounting firms that need delivery capacity
Your client work is growing and you need trained people who can work inside your processes and standards.
Finance teams whose workload has outgrown their capacity
Your team is capable but it's spending its week on recurring processing instead of review, analysis and consistent reporting.
Scope
What does GSC's Client Accounting Services include?
Hand over a single workflow or the full accounting cycle. You decide how much and when.
What you getIncluded in Client Accounting Services8 services · one dedicated team
- 01Bookkeeping
- Day-to-day transactions recorded and categorized accurately, so the books reflect what actually happened.
- 02Account Reconciliations
- Bank, credit card and balance sheet accounts matched and verified on a set schedule, not whenever there's time.
- 03Month-End Close
- A defined close checklist: accruals booked, accounts reconciled and variances explained on a consistent timeline.
- 04Accounts Payable
- Invoices coded, matched and scheduled for payment on your terms, with a clean AP aging behind them.
- 05Accounts Receivable
- Customer invoices issued, payments applied to the right accounts and past-due balances tracked for follow-up.
- 06Financial Reporting
- Monthly financial statements and management reports built to your chart of accounts and reporting calendar.
- 07General Ledger
- Journal entries, accruals and GL maintenance that keep balances accurate and ready for review or audit.
- 08Accounting Cleanup
- Books that have fallen behind or drifted out of balance are brought current and corrected before regular work begins.
Scope is agreed with you up front. Start with one service and add more whenever you need them.
How It Works
How does outsourced accounting work?
A structured handover in five stages, from understanding your environment to steady, improving delivery.
01
Understand
GSC reviews your chart of accounts, current systems and where the accounting workload is breaking down today.
02
Set Up
Your GSC team gets access to your accounting systems and agrees a cadence, checklist and communication rhythm with you.
03
Take Over
GSC begins handling the agreed accounting workflows (bookkeeping, reconciliations, AP/AR or the close) inside your existing systems.
04
Operate
The team runs the recurring cycle on schedule and keeps you updated on what's done, what's pending and what needs your input.
05
Improve
GSC tightens the process over time and takes on more work as you need it.
Most engagements are live within about two weeks.
See the full client journey →
Why GSC
Why choose GSC?
Five things you'll notice in the first month.
01
A dedicated team
You work with the same people who know your business, not an anonymous, rotating queue. You always know who is working on what and who is accountable for it.
02
CPA-firm compatible
GSC works inside existing accounting environments, checklists and review standards. For accounting firms, the team can operate behind your firm under a white-label model: your clients see your team.
03
AI-augmented delivery
AI handles repeatable work such as data entry, categorization and matching, which improves speed, consistency and visibility. People stay accountable: a person reviews every output before it reaches you.
04
Scalable capacity
Support scales up or down as your workload changes (month-end peaks, new entities or seasonal volume) without a new hiring cycle on your side.
05
Your systems, your processes
GSC works in the software, chart of accounts and workflows you already have. There's no requirement to migrate systems to work with us.
Systems
Accounting systems we work with
GSC's team works directly inside your accounting platform: no migration and no change to your chart of accounts.
Accounting & ERP
QuickBooksXeroSageNetSuite
AI-native accounting
DigitsCampfirePuzzleFinlensDualEntryRillet
Spend & banking
RampBrexMercuryBill.com
Payroll
GustoADPPaychexRippling
Running something else? Tell us on a call. The team works in the tools you already use. How GSC uses technology →
Product names and logos belong to their owners. GSC is not affiliated with these companies.
Engagement Models
How can you work with GSC?
Client Accounting Services can be delivered in two ways. The right one depends on who you want directing the day-to-day work.
Model 01
Outsourcing
GSC takes responsibility for defined finance and accounting functions as an outsourced service, working as an extension of your organization against agreed deliverables.
Fits whenyou want to hand off a full function, such as the entire close or all of AP.
Explore Outsourcing →
Model 02
Offshore Staffing
GSC provides dedicated offshore accounting professionals who become part of your team and take day-to-day direction from you, while GSC handles sourcing and management.
Fits whenyou want added capacity that you direct yourself.
Explore Offshore Staffing →
Signals
When should you consider outsourced accounting?
These are the situations that usually come up before a business looks for outside support. One of them on its own may be manageable; several together usually point to an under-resourced accounting function.
- 01Your accounting team is consistently overloaded.
- 02The month-end close is taking too long or keeps slipping.
- 03Hiring and keeping qualified accounting staff is difficult and it's slowing other priorities down.
- 04Transaction volume has increased beyond what the team was built for.
- 05Reporting requirements have become more complex: more entities, lenders or board packs.
- 06Your finance team spends too much time on repetitive processing.
- 07You need more capacity but not more headcount.
Recognize a few of these?
Comparison
Outsourced accounting vs. in-house accounting
Both models can work well. This is how they differ in practice.
Outsourced accountingIn-house accounting
Hiring process
The provider recruits, trains and assigns the team. You agree scope rather than run a search.
You source, interview, hire and onboard each person directly, on your own timeline.
Capacity
Adjusted by changing the agreed scope or team size as workload moves.
Tied to current headcount; adding capacity usually means another hire.
Management
Day-to-day supervision and review sit with the provider against agreed deliverables; you keep oversight.
Your own managers direct, review and develop the team.
Infrastructure
The provider supplies its people's workspace, equipment and security controls; work happens in your systems.
You provide workspace, equipment, software seats and IT support for each person.
Flexibility
Scope can expand or narrow as needs change, within the terms of the engagement.
Workload changes are absorbed by the existing team or through hiring and restructuring.
Cost
One predictable monthly fee for the agreed scope.
Salary, benefits, recruiting fees, software seats and equipment for every hire.
Some businesses combine the two: an in-house lead who owns decisions, with an outsourced team handling the recurring work underneath.
Industries
Industries we support
Different businesses run finance differently. The team adapts to your chart of accounts, your cadence and your reporting.
- Professional ServicesProject-heavy books, partner distributions and tight closes.↗
- Technology & SaaSRevenue recognition, metrics and investor-ready reporting.↗
- Real EstateMulti-entity books, property-level accounting and CAM reconciliations.↗
- Financial ServicesControlled environments and documentation-first workflows.↗
- HealthcareHigh-volume AP, payroll and compliance-aware processes.↗
- NonprofitFund accounting, grant tracking and board reporting.↗
- Other Growing BusinessesIf the work is piling up faster than you can hire, we should talk.↗
FAQ
Frequently asked questions
Straight answers to what people ask us before they hand over the work.
01What are Client Accounting Services?+
Client Accounting Services (CAS) is an outsourced accounting model in which an external team handles a business's ongoing accounting work (bookkeeping, reconciliations, accounts payable and receivable, the month-end close and financial reporting) on a recurring basis, inside the business's own systems.
02What does an outsourced accounting team do?+
It runs the recurring accounting cycle on an agreed cadence: recording transactions, reconciling accounts, processing payables and receivables, closing the books each month and preparing financial reports. At GSC, a person reviews every output before it reaches you.
03What accounting functions can be outsourced?+
Bookkeeping, account reconciliations, month-end close, accounts payable, accounts receivable, general ledger maintenance, financial reporting and accounting cleanup. You can outsource a single workflow or the full cycle.
04Is outsourced accounting suitable for growing businesses?+
Yes. It suits businesses whose accounting workload is growing faster than their team. Capacity scales up or down with your workload, without a new hiring cycle on your end.
05Can an outsourced accounting team work in our existing accounting software?+
Yes. QuickBooks, Xero, NetSuite, Sage or whatever you already run. GSC doesn't ask you to migrate systems or change your chart of accounts.
06Will we have a dedicated accounting team?+
Yes. You get dedicated people who know your business, not a rotating queue. You'll always know who's working on what and who's accountable for it.
07What is the difference between outsourced accounting and offshore staffing?+
With outsourcing, GSC manages a defined function against agreed deliverables. With offshore staffing, GSC provides dedicated accounting professionals who work as part of your team and take direction from you, while GSC handles sourcing and management.
08How quickly can an outsourced accounting team get started?+
Most engagements move from signed agreement to first live delivery in about two weeks, depending on how much knowledge transfer your systems need.
09How does GSC protect client financial information?+
Every engagement runs under ISO 27001 and GDPR controls, with role-based access and logging. Where AI is used, data is anonymized first and a person reviews the output before it reaches you. See how GSC secures client data.
10How is outsourced accounting typically priced?+
It depends on scope and engagement type. Outsourced functions are usually priced as a fixed monthly scope, with hourly billing available for projects or extra capacity. Offshore staffing is priced per dedicated person. GSC quotes once it understands the work, usually after a first call.
Next Step
Need more accounting capacity?
If the close keeps slipping, invoices are backing up or your team spends its week on reconciliations, tell us what's piling up and which systems you run. In one call we'll tell you what a GSC team could take off your plate and which model fits.