5 Tax Planning Moves Before December 31

Most tax-saving decisions for the current year must be completed by December 31, which makes proactive planning far more effective than waiting until tax-return season. Individuals and small business owners who review their options before year-end may have more opportunities to reduce taxable income, improve cash flow, and avoid surprises when filing. Hirsch & Hirsch CPA PLLC helps clients in Lynbrook, NY, Nassau County, and across Long Island make informed year-end tax decisions.

1. Review Retirement Contribution Opportunities

Retirement planning can be one of the most practical ways to prepare for both your future and your tax return. Depending on the type of account and your eligibility, contributions to a traditional IRA, SEP IRA, SIMPLE IRA, 401(k), or other qualified retirement plan may reduce current-year taxable income.

Some retirement-plan contributions can be made after December 31, but others must be elected, withheld, or funded by year-end to count for the current tax year. For example, employees who want to increase 401(k) deferrals generally need to make that change through payroll before the final paycheck of the year. Business owners may have additional flexibility, but plan-establishment and contribution deadlines can vary.

Before making a contribution, consider your expected income, retirement goals, available cash, and the tax treatment of the account. A Roth contribution may not create an immediate deduction, while a traditional contribution may reduce taxable income now. The right choice depends on your broader financial picture, not simply the size of a possible deduction.

Hirsch & Hirsch CPA PLLC can help Long Island clients evaluate retirement contribution timing as part of a larger Tax Planning strategy.

2. Consider Accelerating Eligible Deductions

When it makes financial sense, paying certain deductible expenses before December 31 may allow you to claim the deduction on the current year’s return. This approach is most relevant to cash-basis taxpayers, including many individuals, sole proprietors, and small businesses.

Individuals may consider making charitable contributions before year-end, paying qualifying medical expenses, or prepaying certain deductible costs where appropriate. The usefulness of these steps depends on whether you itemize deductions and on the rules that apply to your specific situation. Keep clear acknowledgments, receipts, payment confirmations, and other supporting records.

For business owners, potential year-end expenses may include needed supplies, software subscriptions, professional services, insurance, repairs, advertising, and employee bonuses. Purchasing equipment or other business assets before year-end may also create a deduction opportunity through depreciation, Section 179 expensing, or bonus depreciation, depending on the asset and current tax rules.

However, accelerating a deduction should never mean spending money solely to get a tax break. A deduction reduces taxable income; it does not make the expense free. The better question is whether the purchase is genuinely useful for your household or business and fits your cash-flow plan.

3. Evaluate Whether Deferring Income Makes Sense

In some cases, pushing income into the next calendar year can help reduce the current year’s taxable income. This may be worth considering if you expect to be in a lower tax bracket next year, anticipate lower business income, or are trying to manage the timing of deductions and credits.

For a self-employed taxpayer or small business using the cash method of accounting, deferring income may mean waiting until January to invoice a client, collect payment, or complete a transaction—when doing so is commercially reasonable. Employees may have fewer options, but year-end bonuses, stock compensation, and other variable income may still warrant planning conversations.

Deferring income is not automatically the right move. If next year’s income is likely to rise, tax rates may be higher, or you need cash for business operations, delaying revenue may create more problems than benefits. Small business owners in Nassau County should weigh tax impact alongside cash flow, customer relationships, and operational needs.

4. Check Withholding and Estimated Tax Payments

Year-end is an ideal time to compare the taxes you have paid with the taxes you are likely to owe. A major income change, new job, freelance work, investment gains, retirement distributions, or business profits can all affect whether your withholding and estimated payments are on track.

Employees can review their most recent pay stub and consider whether their Form W-4 settings still reflect their current circumstances. If withholding is too low, adjusting it before the final payrolls of the year may reduce the risk of an unexpected balance due. If too much has been withheld, you may be giving up access to funds that could otherwise support savings, debt repayment, or business needs.

Self-employed individuals, landlords, investors, and business owners should also review estimated federal and New York tax payments. Underpaying throughout the year can result in penalties, even if the full balance is paid when the return is filed. Hirsch & Hirsch CPA PLLC can help clients in Lynbrook, NY, project year-end income and determine whether an additional estimated payment may be appropriate.

5. Revisit Entity-Level and Business Decisions

For small business owners, year-end planning should go beyond income and expense totals. Entity-level decisions can affect how income is taxed, how payroll is handled, and what records are needed for future filings.

LLC owners, partnerships, S corporation shareholders, and corporate owners should review owner compensation, distributions, shareholder or partner basis, payroll compliance, equipment purchases, and projected profitability. For S corporations in particular, reasonable compensation and payroll reporting deserve attention before the year closes. Businesses may also need to review whether planned bonuses, retirement contributions, or asset purchases should occur before December 31.

If you are considering a new entity election, restructuring, or a change in how your business is taxed, do not wait until filing season. Some elections have deadlines that occur before the return is due, while others require advance setup, payroll changes, or legal documentation. Thoughtful Business Tax Planning gives you time to assess the financial and administrative impact before making a decision.

Build a Simple Year-End Tax Planning Checklist

A productive year-end review does not need to be overwhelming. Start by gathering your latest pay stubs, profit and loss statement, balance sheet if applicable, payroll reports, retirement contribution records, estimated-tax payment confirmations, and a list of major changes during the year.

Then identify decisions that must happen before December 31, such as charitable giving, payroll deferrals, business purchases, bonus payments, or income-timing decisions. Document what you decide and retain support for each transaction. This organization can make filing season smoother while helping you make choices before deadlines close.

FAQ

When should I start year-end tax planning?

Ideally, begin during the fourth quarter rather than waiting until the final week of December. Starting early gives you time to gather records, forecast income, consider options, and complete transactions before relevant deadlines.

Can I still lower my taxes after December 31?

Some opportunities, such as certain retirement contributions, may remain available after year-end. However, many of the most meaningful tax-planning decisions must be completed by December 31, so it is important not to assume every strategy can wait until filing season.

Should I buy equipment just for the deduction?

Only purchase equipment if it supports a genuine business need and fits your budget. A deduction can reduce the after-tax cost, but it does not eliminate the expense.

Do individuals need tax planning too?

Yes. Changes in income, investments, retirement distributions, family circumstances, charitable giving, and withholding can all create planning opportunities for individual taxpayers.

How can Hirsch & Hirsch CPA PLLC help?

Hirsch & Hirsch CPA PLLC provides practical, personalized guidance for individuals and small businesses throughout Long Island and Nassau County. A year-end planning review can help you understand your projected tax position and prioritize decisions before the calendar turns.

Schedule a year-end planning session with Hirsch & Hirsch CPA PLLC today to review your options before December 31.