Q4 Tax Planning: 5 Situations and Who Fits Each

Q4 Tax Planning: 5 Situations and Who Fits Each

Q4 tax planning is a question of what can still be changed. In October, a lot can. By the last week of December, much less can, and some moves must be finished before the year closes.

Here are five situations and who fits each. The firms are Iota Finance, a Florida-based firm for monthly accounting, tax and fractional CFO work; Doug Johnson CPA in Los Angeles, which lists equity compensation as a specialty; and Crypto Tax Made Easy in Little Silver, New Jersey. The list is grouped by situation, not ranked. Every firm named is a vetted Sam's List member. The firms written up below are paid featured members of Sam's List.

1. S Corp Year-End Tax Planning: Payroll and Distributions Do Not Match

The owner takes distributions all year and a small salary, or the salary was set once and never revisited. An S corp owner who works in the business generally has to be paid reasonable compensation through payroll, and distributions are not a substitute for it. Too little salary invites IRS questions. Too much gives up payroll tax savings.

October is when this can still be fixed, because adjustments have to run through payroll before year end.

Iota Finance offers tax alongside monthly accounting and fractional CFO work for small businesses and startups, and lists Igor Tutelman, CPA, as Managing Partner.

Iota Finance has 14 verified client reviews on Sam's List as of 2026-10-02. Each review is submitted by an individual who identifies as a client of the firm and rates it on communication, subject-matter knowledge, and overall satisfaction. Reviews reflect those individual experiences and do not represent an endorsement by Sam's List. Iota Finance is a paid featured member of Sam's List. Ratings and rankings are not indicative of future performance or results.

The limitation: Iota lists minimums of $200,000 income, $500,000 revenue or $500,000 raised, so smaller owners fall outside its range. What counts as reasonable pay depends on facts, and a firm that does both bookkeeping and tax is reviewing its own numbers. Ask who checks them.

2. Equity Compensation Tax Planning: A Vest or Exercise Is Coming

You hold RSUs that vest before December, or options you are thinking of exercising. Both land in this year's return and can push income into a higher bracket than your employer's withholding assumed.

Equity compensation tax planning in Q4 asks three things. How big is the gap between supplemental withholding and your real bracket? What would an incentive stock option exercise do to the alternative minimum tax? Does the basis on a share sale, as reported on Form 1099-B, include income already taxed on your W-2?

Doug Johnson CPA lists equity compensation among its specialties and positions the firm for high earners with equity compensation, from Los Angeles, serving clients nationwide.

Doug Johnson CPA has 15 verified client reviews on Sam's List as of 2026-10-02. Each review is submitted by an individual who identifies as a client of the firm and rates it on communication, subject-matter knowledge, and overall satisfaction. Reviews reflect those individual experiences and do not represent an endorsement by Sam's List. Doug Johnson CPA is a paid featured member of Sam's List. Ratings and rankings are not indicative of future performance or results.

The limitation: Doug Johnson CPA is a three-person firm founded in 2024 and lists minimums of $250,000 of income and $250,000 of revenue. A projection depends on income you have not earned and a share price you do not control, so treat it as a range. If you need advice on whether to hold or sell stock, that is a financial advisor question.

3. Crypto Tax Planning Before Year End: Gains and Losses to Review

You sold, swapped or earned crypto this year and have not looked at the total. A swap between two coins is generally a taxable disposal, so a year of trading can hide a gain.

Crypto tax planning before year end starts with a clean transaction history: every exchange and wallet, including transfers between your own accounts that software may have mislabeled as sales. With that, a preparer can show realized gains and losses to date. Brokers now report digital asset sales on Form 1099-DA for transactions beginning in 2025, so the IRS may hold a version of your numbers.

Crypto Tax Made Easy is a digital asset tax firm that serves clients nationwide, including small business owners, startups, real estate investors and solopreneurs, and lists no income or revenue minimums.

Crypto Tax Made Easy has 6 verified client reviews on Sam's List as of 2026-10-02. Each review is submitted by an individual who identifies as a client of the firm and rates it on communication, subject-matter knowledge, and overall satisfaction. Reviews reflect those individual experiences and do not represent an endorsement by Sam's List. Crypto Tax Made Easy is a paid featured member of Sam's List. Ratings and rankings are not indicative of future performance or results.

The limitation: realizing a loss is a decision with consequences, and the rules on digital assets continue to evolve, so confirm current treatment before acting. A six-person firm has finite capacity as the year ends, and a tax specialist does not replace monthly bookkeeping.

4. Q4 Tax Planning When You Just Need the Books Closed

Some owners have a records problem, not a tax problem: nine months of transactions, no reconciliation and no way to know this year's profit. You cannot plan around a number you cannot see.

The first move is a catch-up close through September: accounts reconciled, loans and payroll tied out, a profit and loss statement you believe. We do not name a firm for this one, because many accountants and bookkeepers do it well. Ask for a written scope.

The limitation: a catch-up close takes weeks, not days, and the later you start, the less room is left to act on what it shows.

5. Q4 Tax Planning When Your Situation Is Already in Order

This is the quiet case, and it is real. Your income is steady, your books are closed, you have no equity compensation or crypto, and your payroll and estimated payments are in order.

What you need is a short confirmation, not a project: that your estimated payments cover this year and that no large purchase or sale is hiding in December. Paying for planning you do not need is also a cost.

The limitation: a business sale, a move to another state or a large asset purchase can turn a quiet year into a planning year, so tell your accountant when something changes.

Frequently Asked Questions

When should I start Q4 tax planning?

October is a good start, because many moves, such as payroll adjustments and equity decisions, must be completed before December 31. Starting earlier is usually better, and starting in December leaves fewer options. Confirm timing for your situation with a qualified tax professional.

What is S corp year-end tax planning?

It is reviewing salary against distributions and profit, and adjusting through payroll before year end if the balance is off. An owner who works in the business generally has to be paid reasonable compensation. What is reasonable depends on facts, so ask a tax professional.

Can I do crypto tax planning before year end?

Yes. Gather your full transaction history across exchanges and wallets, identify realized gains and losses to date, and talk to a preparer before December 31. Rules for digital assets continue to evolve, so confirm current treatment before selling to realize a loss. The same fall timing applies to equity compensation tax planning.

Disclosure: Some firms named here pay for a Sam's List listing or featured placement. Sam's List takes no referral fee or commission on any engagement.

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About the author: Kimberly Green is cofounder of Sam’s List, a directory and matching platform for financial professionals.