14 Oct Year-End Tax Planning: What to Review Before December
There is a difference between preparing your taxes and planning for them.
Tax preparation happens after the year is over. By then, most of the decisions that affected your tax bill have already been made.
Tax planning happens while there is still time to make a different decision.
That is what makes the weeks before December useful. You do not need to know exactly what your tax return will look like yet. But you should have a reasonable picture of where your income, deductions, withholding, and major financial decisions are likely to land.
For business owners, that review goes a step further. Your tax picture is connected to payroll, profit, purchases, retirement contributions, estimated payments, and decisions about when money moves in and out of the business.
Here is what is worth reviewing before the year gets away from you.
For Individuals: Start With What Changed
Before looking for deductions, look at your year.
Did you change jobs? Get a raise or bonus? Start earning income outside of your regular paycheck? Buy or sell a home? Sell investments? Start a business? Receive a large distribution? Get married or divorced?
A significant change during the year can mean that the assumptions behind your withholding or estimated tax payments no longer fit.
That is why a year-end tax projection can be useful. It gives you an estimate of your total income, deductions, credits, payments, and expected tax liability before the year closes.
The point is not to predict your tax return down to the dollar. It is to find a meaningful gap while you may still have options.
Check your withholding and estimated payments
Pull out a recent pay stub and look at how much federal and state tax has been withheld so far.
If you have income that does not have withholding attached to it, include that too. That might be freelance income, investment income, rental income, or income from a side business.
Then compare what has already been paid with what you are likely to owe for the year.
If there is a shortfall, finding it in November gives you more options than finding it when your return is prepared.
Review investment activity
If you sold investments this year, do not wait for your tax documents to arrive next year before thinking about the tax impact.
Look at realized gains and losses, as well as positions you are considering selling before year-end. In some situations, investment losses can offset capital gains. There are specific tax rules involved, including rules around selling and repurchasing substantially identical investments, so the transaction itself matters.
The larger point is simple: know what has already happened in your portfolio before making another year-end move.
Look at retirement contributions
Review what you have contributed to retirement accounts so far and which contribution opportunities remain available to you.
The right decision is not automatically “contribute as much as possible.” Cash needs, employer matching, account type, income level, tax treatment, and your broader financial plan all matter.
What you want to avoid is discovering after a deadline that you would have made a contribution differently if you had looked at the numbers sooner.
Gather charitable giving records
If charitable giving is part of your year-end plan, keep records as you go rather than trying to reconstruct everything during tax season.
For non-cash gifts, documentation becomes especially important. Larger or more complex donations can have additional substantiation and appraisal requirements.
If you are considering a significant gift, review the tax treatment before making the contribution rather than assuming every charitable gift produces the same result.
Flag major life events now
Some of the most important tax-planning conversations do not begin with a tax form.
They begin with a life event.
A marriage, divorce, new child, home purchase, inheritance, retirement, stock compensation event, or move can change several parts of a tax return at once.
If something significant happened this year, put it on the list even if you are not sure whether it affects your taxes. That is exactly the kind of question worth resolving before year-end.
For Business Owners: Start With the Year You Are Actually Having
For a business owner, year-end tax planning should start with current financial statements, not last year’s tax return.
Look at your year-to-date profit and loss statement and balance sheet. Compare revenue and profit with last year and with what you expected at the beginning of this year.
If your books are several months behind, that is the first issue to solve.
You cannot make a useful year-end tax decision from incomplete numbers.
Get a current estimate of taxable income
Revenue alone does not tell you what your tax exposure looks like.
You need a reasonable estimate of business profit, owner compensation, other household income, and payments already made.
This is especially important after a strong year. A business can have enough cash in the bank to feel comfortable while still being significantly behind on estimated taxes.
A projection gives you something more useful than a vague sense that you “probably owe more this year.”
It gives you a number to plan around.
Review estimated tax payments
Compare the payments you have already made with your updated projection.
If profit increased significantly, payments based on last year’s results may not reflect this year’s liability. If profit declined, the opposite may also be true.
The goal is not necessarily to eliminate every dollar that could be due with the return. It is to understand the expected balance and make an intentional decision about it.
Review major purchases before you make them
Year-end equipment purchases often get framed as an easy tax strategy: buy something before December 31 and take the deduction.
That is too simple.
A deduction reduces taxable income. It does not make the purchase free.
If a business spends $40,000 primarily to generate a tax deduction, it still spent $40,000.
The better question is whether the business actually needs the asset, whether the timing makes operational sense, how the purchase will be treated for tax purposes, and what the cash impact will be.
Tax treatment should inform a good business decision, not create a reason for a bad one.
Review payroll and owner compensation
If you operate through an entity where owner compensation matters for tax purposes, review payroll before the final payroll runs of the year.
Do not assume this can always be cleaned up neatly after December 31.
Look at wages paid, distributions or draws taken, payroll tax deposits, retirement contributions tied to payroll, and any year-end adjustments that may be required.
This is also a good time to identify personal expenses that may have been paid through the business so they can be categorized correctly.
Look at accounts receivable and upcoming expenses
Review what customers owe you, what you expect to collect before year-end, and what significant expenses are coming.
The tax treatment of income and expenses depends in part on your accounting method and the nature of the transaction, so simply delaying an invoice or paying a bill early does not automatically create the result you expect.
But timing can matter.
Before moving income or expenses between years, understand both the tax consequence and the effect on the business itself.
Review retirement plan opportunities
Business owners may have retirement plan options that work differently from the retirement accounts available to employees.
Contribution limits, plan setup deadlines, employee requirements, payroll, and cash flow can all affect what is practical.
This is an area where waiting until tax preparation can be particularly limiting. Some decisions need to happen during the tax year even if certain contributions can be made later.
The Question to Ask Before December
A useful year-end tax review does not start with:
“What can I deduct?”
Start with:
“Based on what has actually happened this year, what decisions do I still have time to make?”
For an individual, that might mean correcting withholding, understanding the tax effect of an investment sale, or planning around a major life change.
For a business owner, it might mean adjusting estimated payments, reviewing compensation, evaluating a planned purchase, or deciding whether a retirement strategy makes sense.
Some years, the review will show that very little needs to change. That is still useful information.
The expensive surprises tend to happen when no one looks until the year is already closed.
If any of this sounds like your year, a year-end projection is worth twenty minutes before December, not after. That’s the kind of conversation worth having with your CPA while there’s still time to act on it.
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