Ten thousand a month is the benchmark income of remote closing, so here is what the tax math on it actually looks like for a 1099 closer. The honest answer has a fixed part, self-employment tax, and a variable part, income tax, and the difference between planning and not planning is five figures.
$120,000 a year: the math before write-offs
Start with self-employment tax, because it is nearly mechanical. On $120,000 of net profit, the tax applies to 92.35% of it, about $110,820, at 15.3%, which comes to roughly $16,955. That is owed regardless of deductions, filing status, or dependents; it is the both-halves Social Security and Medicare bill of working for yourself. Income tax then stacks on top, and it is where the variables live: you deduct half the self-employment tax, subtract the standard deduction (a figure that adjusts each year), and likely subtract a qualified business income deduction of up to 20% of profit if you qualify under the current-year rules. For a single filer with no other income, running those steps leaves taxable income far below the $120,000 headline, and the resulting federal income tax typically lands in the low-to-mid five figures. Blended with the $16,955, most closers at this level owe somewhere in the 25% to 30% range of profit in total federal tax, plus whatever their state charges.
Why two closers on $120k pay very different bills
The fixed math above assumed $120,000 of net profit with no adjustments, and almost nobody actually files that way. Business expenses come off before any tax is computed: phone and internet shares, CRM software, sales coaching, a qualifying home office. A closer documenting $12,000 of real expenses is taxed on $108,000, which trims roughly $1,700 of self-employment tax and more in income tax. Retirement moves cut deeper: self-employed closers can shelter substantial amounts in a solo 401(k) or SEP IRA, with contribution limits that adjust annually, and every sheltered dollar skips income tax now. Filing status, a spouse's income, kids, and state of residence swing the total further; a closer in a no-income-tax state keeps thousands more than one in a high-tax state on identical commissions. And at consistently higher profit, the S corporation election starts converting part of the self-employment tax into savings. Identical gross, wildly different net: the spread is planning.
Turning the estimate into a monthly system
For a $10k-a-month closer, the working plan is: set aside 25% to 30% of each payout in a separate tax account, more if your state taxes income, then pay quarterly estimates on April 15, June 15, September 15, and January 15 from that account, using last year's total tax as a safe harbor floor to stay penalty-proof. Revisit the percentage after your first filed return at this income; your actual effective rate, with your real deductions, is the best predictor of next year. The wrong plan is treating the full $10,000 as spendable. At this income the IRS is effectively a silent partner taking a quarter to a third of profit, and closers who price that in from the first commission never meet the April crisis that defines everyone who did not.