Year-End Financial Planning for Law Firms: A Q4 Checklist to Close the Year Strong
By the time December arrives, most of the year’s financial decisions have already been made. What’s left is mostly reaction – a scramble to find deductions, a guess at what’s owed, a budget built in a rush because the new year is already underway.
The firms that avoid that scramble treat Q4 differently. They use the last quarter of the year not to close the books, but to make the handful of decisions that are still open – decisions that get considerably harder, or disappear entirely, once January 1 arrives.
This isn’t a repeat of general tax strategy. Our related post on strategic tax planning covers the year-round habits worth building. This is the specific list of what to review and decide before the year actually closes.
Key Takeaways
- Q4 is a decision window, not a wrap-up period – several of the moves below become unavailable or far less effective once the calendar turns.
- Reviewing this year’s numbers first – profit margin, realization, collections – is what makes every later decision on this list accurate rather than a guess.
- Estimated tax payments, retirement contributions, and major purchases all have real deadlines that fall before or right at year-end.
- Owner compensation and business structure are worth a deliberate annual look, not a decision made once and left alone for years.
- Next year’s budget built in Q4, grounded in this year’s actual numbers, puts a firm ahead of January rather than reacting through it.
Start With a Clear-Eyed Review of the Year So Far
Every decision on this checklist depends on accurate numbers, which makes this the starting point rather than an afterthought. Before making any year-end moves, pull the current-year financials and look at them the way a CFO would: profit margin, realization rate, collection rate, and where the year’s revenue actually came from.
Our post on law firm financial KPIs covers the specific metrics worth tracking here. The point in Q4 isn’t a full annual review – that comes later – it’s making sure the numbers behind every remaining decision this quarter are current and correct, not based on a rough sense of how the year went.
Time Major Purchases and Equipment Deductions Deliberately
If the firm has been planning to buy new office equipment, computers, or software, or to invest in a build-out, the timing of that purchase can meaningfully affect this year’s tax position. Depending on how the purchase is structured and when it’s placed in service, it may be deductible this year rather than next.
The mistake to avoid here isn’t failing to buy the equipment – it’s buying it reactively in December purely for the tax effect, without regard for whether the firm actually needs it yet or has the cash flow to support the purchase. Strategic timing means coordinating the purchase with both the tax calendar and the firm’s actual operating needs, not chasing a deduction for its own sake.
Maximize Retirement Contributions While There’s Still Time
Retirement contributions are one of the few moves on this list that reduce this year’s taxable income while simultaneously building long-term personal wealth – a rare combination. Depending on the plan type the firm uses, some contributions must be made by December 31, while others have more flexibility into the following year.
Reviewing how much has been contributed so far this year against what’s still available, and confirming the plan-specific deadline, is worth doing now rather than in the final week of December when options for that plan year may already be closing.
Revisit Your Business Structure Before It’s Locked in for Another Year
The entity structure that made sense when the firm was founded, or at its last size, isn’t guaranteed to still be the most tax-efficient choice today. Revenue growth, changes in ownership, or shifts in how owners take compensation are all reasons a structure worth revisiting.
This isn’t an annual requirement – a structure that’s working well doesn’t need to change just because the calendar turned – but it’s worth a deliberate look at least once a year rather than an assumption carried forward indefinitely. Our post on strategic tax planning covers this in more detail as one of several year-round levers.
Set (or Reset) Owner Compensation With Next Year in Mind
How owners pay themselves – salary, distributions, or some combination – has real tax and cash flow consequences, and it’s worth revisiting before the new year’s compensation structure is already in motion rather than adjusting mid-year.
This is also the moment to check that compensation still reflects the firm’s actual financial position. A structure set two or three years ago, before the firm’s revenue or profit margin changed, may no longer be the right balance between what owners take home and what stays in the business to fund growth or build reserves.
Clean Up Accounts Receivable and Work in Progress Before the Books Close
Unbilled work and unpaid invoices carried into the new year don’t disappear – they just become next year’s collection problem, on top of next year’s new work. Q4 is a natural point to push a final collections effort on aging invoices and get outstanding work in progress billed before it sits any longer.
This connects directly to the metrics covered in our cash flow post – days in accounts receivable and WIP turnover are exactly what this cleanup is meant to improve, and closing the year with a clean AR ledger makes the actual year-end numbers meaningfully more accurate.
Confirm Your Cash Reserve Position Heading Into Q1
The first quarter of a new year often brings its own cash pressure – payroll and overhead continue while new-year billing ramps back up more slowly than expenses do. Checking the firm’s cash reserve now, rather than discovering a gap in the first weeks of January, gives ownership time to adjust if the reserve is thinner than it should be heading into the new year.
Build Next Year’s Budget Now, Not in January
A budget built in the first week of January is usually a rushed one, assembled after the year has already started rather than before. Building next year’s budget in Q4, grounded in this year’s actual performance rather than a rough estimate, means the firm starts the new year already knowing its numbers instead of spending the first month catching up to them.
Q4 Is Strategy Season, Not Cleanup Season
None of the moves above are complicated on their own. What makes them effective is timing – several only work, or work best, before the calendar year closes. Treated individually and reactively in December, they become a scramble. Treated as a deliberate Q4 review, they become exactly what they should be: the handful of decisions that put a firm ahead of the new year instead of behind it.
Frequent Asked Questions (FAQs)
When should a law firm start year-end financial planning?
Early in the fourth quarter, ideally by October. Several of the moves above – retirement contributions, estimated tax adjustments, major purchase timing – need enough runway to actually execute before December 31, not just to be considered.
What's the biggest year-end planning mistake law firms make?
Treating it as a single December task instead of a review that starts weeks earlier. Compressing this checklist into the last two weeks of the year usually means some of the more valuable moves, like retirement contribution timing or a business structure review, get skipped entirely.
Do estimated tax payments need to be adjusted every year?
Not necessarily every year, but they should be reviewed every year. Whenever actual income diverges meaningfully from the original projection, the remaining estimated payment for the year should be adjusted to match.
Is a business structure review only necessary when something changes?
A deliberate annual look is worth doing regardless, since it’s easy to miss a gradual shift – steady revenue growth, for instance – that individually never feels like “something changed” but collectively adds up to a structure that no longer fits.
How is this different from the firm's regular tax planning?
Ongoing tax planning is a year-round habit; this checklist is the specific set of decisions that have a hard or practical deadline tied to the calendar year closing. Both matter, but this one has a clock attached to it.
How Silver Peaks CPA Can Help
Year-end planning is easiest with a CFO-level view of the year already in hand rather than a scramble to reconstruct it in December. At Silver Peaks CPA, our CFO advisory work keeps law firm owners ahead of exactly this kind of quarterly decision-making, paired with strategic tax planning built around the calendar deadlines that actually matter.
