10/08/2026
For mortgage professionals, Q4 can be the strongest stretch of the year. It's also when tax planning most often falls behind the income.
Commissions don't come with withholding W-2 employees have tax taken out of every paycheck. Commission-based brokers and loan officers paid as independent contractors don't. Every estimated payment is a decision you make yourself, often based on numbers from earlier in the year.
Where the gap shows up If your estimates were set during a slower first half, a strong fourth quarter can leave you underpaid. You often won't feel it until the January 15 estimated payment or when your return is prepared, and by then the options are limited.
The safe harbor rule To generally avoid federal underpayment penalties, total payments need to cover at least 90% of this year's tax or 100% of last year's tax. If last year's adjusted gross income was over $150,000, that becomes 110%. Knowing which target applies to you turns a guess into a plan.
Three questions to answer before December 31 What have I earned year-to-date? What have I already paid in? What's the realistic gap, and how will I cover it?
Answering these in October or November leaves room to adjust payments, time business purchases or plan retirement contributions. Answering them in April leaves you writing a check.
Variable income is part of the mortgage business. A variable tax plan doesn't have to be.
If you'd like to run your Q4 numbers before year-end, book a call.
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