Year-End Tax Planning: A Q4 Checklist

The decisions made before December 31 shape the return you file in April. For individuals and business owners alike, the final quarter of the year is when proactive planning pays the largest dividend.

For individuals, the checklist starts with income timing. If you expect a bonus or a significant capital gain, modeling the impact before it lands lets you decide whether to defer, offset, or accelerate other items. Review your retirement contributions, charitable giving, and any realized gains or losses in the portfolio — harvesting losses can offset gains and up to $3,000 of ordinary income per year.

For business owners, the conversation widens. Review entity compensation: the right mix of salary and distributions affects both the business deduction and the owner's self-employment tax exposure. Confirm that estimated payments track the actual year, especially if income shifted mid-year. If equipment purchases or capital expenditures are on the horizon, the depreciation rules in effect this year may make late-year purchases more valuable than waiting.

Multi-state clients should confirm residency and sourcing before year-end, not after. A change in domicile — a move, a new office, time spent in another state — can quietly shift where income is taxed. We help clients document the change and plan the filings that follow.

The common thread is simple: planning is most valuable when it is specific to your year and revisited before the window closes. That is the standard we carry into every Q4 conversation.