What to Expect in Your First 90 Days with an Outsourced Accounting Partner
November 4, 2025
The first 90 days of working with an outsourced accounting firm set the tone for the entire relationship. This is where your internal systems, people, and expectations begin to align with your partner's workflows, processes, and tools. When done right, this phase is transformative: you'll go from reactive to proactive, from messy books to clean data, and from fire drills to financial control. So what should you expect? Let's walk through the typical 90-day journey.
01
Days 1–15: Kickoff & Knowledge Transfer
The relationship begins with a structured kickoff meeting where both teams get aligned on goals, scope, systems, and stakeholders. This phase is critical to build trust and transparency.
What happens here:
- Introductions to key team members and points of contact on both sides.
- System access is granted — GL platform (like QuickBooks or NetSuite), payroll, banking, AP/AR tools, etc.
- Documentation handover — prior month financials, process documents, org charts, and key contacts.
- Expectations are clarified — such as cadence for reporting, review meetings, and communication norms.
Your role: Be responsive, help unblock access, and share as much tribal knowledge as possible.
02
Days 15–30: Process Discovery & Initial Clean-Up
Now the work begins. Your partner will dig into your systems, evaluate the state of your books, and begin documenting workflows. Often, there's some cleanup involved — and that's a good thing.
What to expect:
- Chart of accounts review and standardization
- Reconciliations of bank and credit card statements
- Fixing historical errors or misclassifications
- Mapping out AP, AR, and month-end workflows
- Initial reporting templates are reviewed or created
Think of this as setting a clean foundation. If your books are messy, don't be embarrassed — this is normal, and it's fixable.
03
Days 30–60: Stabilization & Process Ownership
By this point, your outsourced team begins taking ownership of recurring tasks — and you start to feel the shift. Processes become more predictable, and reporting starts to get timely and consistent.
You'll see:
- Timely bill payments and invoice collections
- Weekly cash updates or burn tracking
- Month-end close tasks structured in a checklist
- Early versions of financial reports: P&L, balance sheet, cash flow
This is where growing trust leads to greater delegation. Your internal team starts focusing on decisions, not reconciliations.
04
Days 60–90: Reporting Rhythm & Strategic Alignment
With processes humming and books in shape, the focus shifts to financial visibility and insights. Your partner is now an extension of your team — helping you make faster, better-informed decisions.
Key outcomes:
- Clean, investor-ready financials
- Month-end close typically within 5–7 business days
- Dashboards or reports tailored to leadership needs
- Insights into margins, spend, cash flow, and trends
- Discussions around forecasts or strategic planning
At this point, you'll start to feel like you have a true finance function — not just a bookkeeping service.
What Success Looks Like
By the end of 90 days, here's what you should see if you've chosen the right partner:
Clean books, reliable reporting, and reduced errors
A defined close process with clear timelines
Time saved for founders and CFOs
Greater confidence in financial data and decisions
A foundation that can scale as you grow
Final Thoughts
The first 90 days with an outsourced accounting partner are all about alignment, process, and trust. It's an investment — of your time, your team's attention, and your data. But if done right, the payoff is huge: real financial control, a stronger back office, and a finance function that helps your business scale with clarity and confidence.