
If you are reading this in January thinking about outsourcing tax prep for the current season, you are late. Not too late to start, but late enough that your first season will be rougher than it needs to be. The CPA firms that have the smoothest first outsourced tax season are the ones that began onboarding their offshore team in October.
Here is why. A tax preparation team, onshore or offshore, needs to understand your firm's review process, your software setup, your return formatting preferences, and the specific quirks of your client base before they can prepare returns at the quality level you expect. That ramp-up takes 8 to 12 weeks for a new offshore team. Start in October, and your team is ready for the January volume. Start in January, and you are training during the busiest month of the year.
We have onboarded CPA firms for their first outsourced tax season at every point in the calendar at Madras Accountancy. October starts are smooth. January starts work but require more patience and more review from your onshore team. March starts are emergency triage. Our tax preparation outsourcing guide covers the operational details. This article covers the preparation timeline.

Week 1 to 2: Provider Selection and Contract If you have not selected a provider yet, this is the deadline. Evaluate 2 to 3 providers, run them through your due diligence checklist, and sign the engagement. Do not spend 3 months evaluating. Spend 2 weeks, make a decision, and start.
Key contract terms to confirm: pricing model (per-return or per-FTE), SLA commitments for peak season turnaround, data security provisions, and a trial period clause that lets you exit if quality is unacceptable after 30 days.
Week 3 to 4: Technology Setup Grant the offshore team access to your tax software (Lacerte, UltraTax, Drake, ProConnect) through secure VDI. Test that they can log in, open a return, and navigate the software. This sounds trivial. It takes 3 to 5 business days to set up properly because of VPN configurations, software licensing, and multi-factor authentication.
Set up the communication channels: Slack or Teams channel for the tax team, shared folder for source documents, and access to your practice management system for task tracking. Our data security checklist covers the technical infrastructure requirements.
Week 1 to 2: Process Documentation Write down (or record via Loom) your firm's tax return preparation process. Not the generic process. YOUR process. How do you organize client source documents? What is your file naming convention? What does your preparation checklist look like? What review points does your CPA check first? What are the common mistakes your current staff makes that you always have to catch?
This documentation is the single most important investment in the entire onboarding. Firms that skip it spend January answering the same questions over and over. Firms that do it well have a reference document the offshore team uses autonomously.
Week 3 to 4: Practice Returns Select 10 to 15 returns from the prior year that represent the range of what your firm prepares. Simple 1040s, complex 1040s with K-1s and multi-state, 1120S returns, 1065 returns, and any specialty returns (990s, multi-state business returns). Have the offshore team prepare each one using prior-year source documents and your software.
Review every practice return as if it were a live return. Provide detailed feedback. The team should get visibly better from return 1 to return 15. If they do not, you have a team quality problem that needs to be addressed before January. Our quality control guide covers the review methodology.
Week 1 to 2: Extension Returns If your firm has any remaining extension returns from the prior year (October 15 deadlines), use them as live practice for the offshore team. These are real returns with real deadlines, but the volume pressure is low and the time to review is ample.
Track the metrics: preparation time per return, error rate (review notes per return), and turnaround time from source document receipt to draft return in your review queue. These baseline metrics tell you what to expect in January when volume hits.
Week 3 to 4: Volume Planning and Workflow Design Map out your expected volume for the upcoming season. How many individual returns? How many business returns? What is the expected weekly volume from late January through April 15?
Design the workflow: how do source documents flow from the client to your firm to the offshore team? Who assigns returns to specific preparers? How are completed returns routed to the reviewing CPA? What is the turnaround time SLA? How are rush returns handled?
At Madras, we work with each CPA firm to design a season-specific workflow that accounts for their volume pattern, their review capacity, and their deadline commitments. The workflow is documented before January 1 so everyone knows the play. Our conquering tax season guide covers additional operational planning.
By January, your offshore team should be ready to handle live returns. Here is how the first season typically flows.
January (slow ramp): Volume is low. Use this month to calibrate. Review 100 percent of the offshore team's work. Provide feedback daily. The error rate should drop from 8 to 10 percent in week one to 3 to 5 percent by month end.
February (building): Volume increases. The offshore team is handling 60 to 70 percent of preparation volume. Your onshore team focuses on review, client communication, and the complex returns that require senior expertise. Review cadence can drop to 80 percent as confidence builds.
March (peak): Maximum volume. The offshore team should be at full productivity, handling the majority of routine preparation. Your onshore team is fully focused on review, complex returns, and client interactions. This is the month where the outsourcing investment pays off most visibly. Instead of your staff working 65-hour weeks, they are working 50-hour weeks because the production bottleneck is gone.
April 1 to 15 (final push): Last-minute returns, quality assurance on anything with questions, and the final surge. The offshore team's familiarity with your clients and processes, built over the previous 3 months, means they are at their most productive right when you need it most.
April 16 through October (extensions): Volume drops but does not stop. Extension returns continue through October. The offshore team transitions from sprint mode to steady state. Use the slower months to debrief: what worked, what did not, what processes need to change for next season.
One of the challenges we see firms underestimate is the internal communication around outsourcing during tax season. Your onshore staff may have concerns about job security, changes to their workflow, or the quality of work they are expected to review.
In our experience, the firms that handle this well are transparent from the start. Explain to your staff that the offshore team is handling production work so that onshore staff can focus on review, complex returns, and client relationships. Frame it as a capacity upgrade, not a replacement. The onshore team's role is not diminished; it is elevated.
We also recommend involving your senior reviewer in the training process. When the onshore CPA who will be reviewing offshore work participates in the November practice returns, they develop a working relationship with the offshore preparers before the January pressure hits. That familiarity makes the review process smoother and the feedback more constructive.
The firms where outsourcing creates internal friction are almost always the firms that sprung it on staff without context. A brief team meeting in September explaining the plan, the timeline, and how roles will evolve prevents most of these issues.
The logistics of getting source documents from clients to the offshore team is one of the operational details that trips up first-time outsourcing firms. In a traditional workflow, client documents arrive (mail, email, portal upload), the onshore staff organizes them, and the preparer picks them up. With an offshore team, the document flow needs to be fully digital and accessible from the cloud.
We recommend standardizing on a single document intake method. A client portal (through your practice management software, SmartVault, or a dedicated solution) is the most reliable. Documents upload directly to a shared location that both onshore and offshore team members can access. If you are still receiving paper documents from some clients, designate someone onshore to scan and upload them within 24 hours.
Organize source documents by client in a consistent folder structure. At Madras, we ask firms to maintain a standard naming convention: client name, tax year, document type. When the offshore preparer opens the folder, they should find everything they need without having to search through email threads or ask where documents are stored.
The firms that invest 2 to 3 hours setting up their document management system in December save dozens of hours in January and February by eliminating the "where is this document?" back-and-forth.
If it is already January and you are just now exploring outsourcing, here is the accelerated plan.
Week 1: Select a provider and sign the contract. Do not overthink it. Our 30-point evaluation checklist helps you evaluate quickly.
Week 2: Technology setup and access. Skip the lengthy documentation process. Record 5 Loom videos walking through your most common return types. Ship those to the offshore team.
Week 3 to 4: The team prepares 5 to 10 practice returns. You review them. Feedback is immediate and direct.
February onward: Start with the simplest returns (W-2 income, standard deduction 1040s). Build complexity gradually as the team proves themselves. Review 100 percent through March. By late March, the team should be handling moderate-complexity returns independently.
You will not get the same first-season efficiency as a firm that started in October. But you will get capacity relief, and next season will be dramatically smoother because the team carries their knowledge forward. Our first 90 days guide covers the onboarding framework regardless of when you start.
The weeks after April 15 are when the real value of outsourcing begins to compound. We encourage every firm to conduct a formal debrief with their offshore team within two weeks of the filing deadline.
Review the season data: total returns prepared, average turnaround time, error rates by return type, and any client complaints or issues that surfaced. Compare these numbers to what your firm experienced the prior year without outsourcing. In our experience, even first-season results show meaningful improvement in turnaround time and partner workload, even if the error rate was higher than the steady-state target.
Identify the specific return types or client situations where the offshore team struggled most. These are the areas to focus training on during the summer. A firm that uses the May through September window to address first-season gaps enters year two with a team that is dramatically more capable. We have seen second-season error rates drop to 1 to 2 percent for firms that invest in the off-season review process.
If you want to talk about preparing for your first outsourced tax season (whether you are starting in October or catching up in January), reach out at madrasaccountancy.com.
For simple individual returns (W-2 income, standard deduction): 6 to 8 per day. For moderate returns (itemized, Schedule C or E, single state): 3 to 5 per day. For complex returns (multi-state, K-1s, business entities): 1 to 2 per day. These rates assume the offshore preparer has been through the full onboarding process and is working with organized source documents.
Your CPA catches errors during review before the return is filed. That is why 100 percent review is mandatory, especially in the first season. If an error somehow makes it through review and into a filed return, the correction process is the same as any staff error: amend the return, communicate with the client, and document the issue for process improvement. In our experience, post-filing errors from offshore teams are no more frequent than from onshore staff, and often less frequent because the offshore team follows checklists more rigorously.
Start by outsourcing your simplest 50 percent. Keep complex returns (multi-state, significant K-1 flow-through, AMT calculations, high-net-worth individuals) with your onshore seniors for the first season. As the offshore team demonstrates capability on simpler returns, gradually move moderate-complexity returns to them in subsequent seasons.
This happens regardless of whether you outsource. The difference is that an outsourced team can absorb last-minute volume more easily than an already-overloaded onshore team. At Madras, our team works a shifted schedule during tax season that provides extended hours of availability. A return received at 5 PM Eastern can be in your review queue by 8 AM the next morning.
Experienced offshore preparers use the prior-year return as a reference point, just like your onshore staff does. They roll forward the return, compare current-year source documents against the prior year, and flag any significant changes (new income sources, different filing status, new state returns required) for CPA review. This prior-year comparison is actually one of the strongest quality checks in the process because it catches both preparer errors and client omissions.

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