How we helped an accounting firm add an estimated $3.6M in annual profit while managers worked shorter peak weeks.

They wanted to grow, but more prepared returns meant more work waiting for review.

The leaders of a multi-office accounting firm wanted to grow revenue and improve partner income without asking their managers to carry an even longer busy season. They were considering more tax managers and more offshore review capacity, but the work already reaching their reviewers gave us a reason to look closer.

Managers were working 63-hour peak weeks, and the review queue stood at 6.5 days. Adding preparation capacity had brought more work into that queue without reducing the effort reviewers spent on each return.

Before helping the firm buy more capacity, we needed to understand what was consuming the capacity it already had.

Most of the work coming back wasn't a question of tax judgment.

We brought together two seasons of review notes, workflow records, and time entries, then compared them with the team's own work logs. Nearly four in ten returns with a recorded outcome had come back from first review, and 71% of the notes on returned work concerned routine readiness issues: supporting documents that didn't agree, missing state information, unresolved software warnings, and workpapers prepared in different formats.

These were problems that preparers could address before a manager opened the return, but the offices didn't share one definition of what was ready for review.

The difference showed up in work from the same offshore preparers. On the same return types, first-pass acceptance was 71% against one office's requirements and 48% against another's. That gave us a reason to investigate the requirements themselves before treating the problem as a shortage of capable people.

We made the reviewers' standards available before the work reached them.

The firm's senior reviewers already knew what they expected to receive. We used their review notes and examples to help them turn that knowledge into a shared preparation standard, then structured it into checks the firm could use in its existing workflow.

We connected the return's documents, preparation information, and review history so the check could flag missing or inconsistent inputs before review. Preparers received the findings alongside the task they were already working on, which meant they could resolve routine problems before those problems consumed a manager's time.

The tax software still calculated the return, and the firm's reviewers and signing partners kept responsibility for tax decisions and approval. Our checks helped the team send them work that was ready for those decisions.

We also categorized the review notes, so the firm could see which problems kept returning and where the preparation standard needed to improve.

Our first test exposed a check that needed correcting.

The first test fell short of the standard we'd agreed with the firm. Our logic for reconciling partnership information was incorrectly flagging some larger partnerships, so preparers were being asked to resolve issues the check itself had created.

We corrected that logic, reran the existing tests, and tested again on a fresh group of returns. First-pass acceptance reached 79%, and the result passed the agreed statistical threshold while meeting the quality checks.

That gave us a tested basis for rollout, including evidence that the correction worked on returns we hadn't used to make it.

The firm also needed to reward people for finishing work efficiently.

Better checks wouldn't help enough if managers still had a reason to keep recording more hours. We showed leadership where its billable-hour targets conflicted with the work needed to reduce repeat reviews, and the firm changed reviewer scorecards to emphasize completed returns at the required quality.

Leadership also gave reviewers credit against their billable targets for approved work on the standard and its checks. That made room for people to improve the process without that time counting against their targets.

We introduced the checks in a limited group of offices first and compared their results with offices that had received the same scorecard change but weren't yet using the checks.

Managers saved 14 hours in a peak week while reviewers finished more returns.

In the launched offices, the share of measured returns clearing first review rose from 62% to 79%. The offices not yet using the checks stayed close to their starting point, moving from 61% to 63% over the same period.

With fewer returns coming back for another pass, the team completed five more returns per reviewer in a peak week, up from 23 to 28. Managers' peak weeks fell from 63 hours to 49, giving them 14 hours back in one of the busiest weeks of their year.

The financial benefit came from turning that capacity into client work and reducing the costs of repeated review. The firm completed returns for new clients, removed temporary reviewer and contract-preparer costs, and reduced fees written off on hourly work.

At a later follow-up, the CFO estimated that the full program, including the firm's scorecard changes and subsequent expansion, added ~$3.6M in recurring annual profit. That broader estimate included effects beyond the individual benefit lines we measured. A partner subsequently confirmed the results and that the firm had reached its wider revenue goal and 30% partner-income margin, the share of revenue left as income before partner compensation. Other business changes also contributed to that firm-wide goal.

Their team could keep improving the process after we left.

The standard needed to change as new return types and requirements appeared, so we trained the firm's quality lead and deputies to change checks, test those changes, and put them into use.

Their team then extended the process to the remaining offices and added another return type without us carrying out that work. When a new state form caused one check to raise incorrect flags, the quality lead changed its settings and tested the update before putting it back into use.

By the following peak season, 83% of measured returns across the firm cleared first review. The handover had given the team a way to maintain the improvement and extend it as the firm grew.

They gained room to grow by changing what reached their reviewers.

The firm came to us looking for more review capacity. We found that managers were spending part of their busiest weeks dealing with preparation problems that could be caught earlier, so we helped the firm agree on a shared standard, built the checks around it, and taught its team how to keep improving them.

That gave the firm more completed client work while managers worked shorter peak weeks, along with a process its own people could carry into other offices.

If you're trying to grow your own firm, start with your goal, look at what it'll take to achieve it, and then identify what's keeping you from taking action. Just remember that every firm is different and that inconsistent preparation standards were just their bottleneck and it might not be yours.