1099 gross invoices vs net profit: what to type
The calculator wants profit after expenses, not the deposits. $100,000 net vs $70,000 net, single, Texas, with set-aside percents.
A 1099 contractor who types gross deposits into a tax calculator saves too much or, worse, thinks the percent applies to money that was never profit. Software, subcontractors, a dedicated phone, and ordinary supplies come out before self-employment tax and income tax. This page prices two nets in Texas, single, so you can see what happens when $30,000 of real expenses are still sitting in the number. It does not tell you which expenses are allowed. Schedule C and a tax pro do that.
If you type the whole $100,000
Net profit $100,000. Self-employment tax $14,129.55. That is both halves, Social Security and Medicare, on 92.35% of net, because net is at least $400. Federal income tax $11,615.75 after half of the SE tax and the standard deduction. State $0 in Texas. Total tax $25,745.30. Leftover $74,254.70. Set-aside 25.7% of the $100,000. Equal quarter $6,436.33. If those $100,000 were gross and you already spent $30,000 on the work, you just reserved tax on $30,000 that is not income.
If net is $70,000
Self-employment tax $9,890.69. Federal $5,626.56. Total tax $15,517.25. Leftover $54,482.75. Set-aside 22.2%. Quarter $3,879.31. Compared with the $100,000 run, tax falls by $10,228.05, not by 30% of $30,000. The percent itself moves, from 25.7% to 22.2%, because the lower profit sits in a lighter income-tax stack while SE tax is roughly proportional. “Set aside 30% of whatever hit the bank” is the wrong base and, in Texas at these levels, a high percent.
The leftover is not spending money if you still have to buy the expenses. On the $70,000 case the $54,482.75 is what remains after tax on profit. The $30,000 of expenses already left the account. Do not subtract them again.
What we still do not deduct
Qualified business income, a solo 401(k), self-employed health insurance, and a home office are not applied. Those cut the income-tax slice further. Our set-aside is then a ceiling, not a target. A city tax or a state we did not pick would push the other way. California on a large net can need more than 30%, which is why the other 1099 guide exists. This page stays in Texas so the only lesson is gross versus net.
A year with $100,000 of deposits and $30,000 of expenses is the $70,000 case, not a third case in between. Do not average the two set-aside percents and apply 24% to gross. The base is net. The percent is whatever the page prints for that net. Texas at these two profits lands at 25.7% and 22.2%. Another state will print a different pair.
Meals, commuting, and clothes you also wear off the job are where people invent deductions. If you are unsure, run the higher net. Under-saving is the expensive error. Over-saving by using gross is annoying and usually fixable. The quarterly figure is still total tax divided by four, not a finished 1040-ES voucher and not a safe-harbor test against last year.
Open the 1099 calculator and enter 100000, then 70000, single, Texas. Match 25.7% and 22.2%, and the dollar totals above. IRS Schedule C instructions decide the expenses. This site only prices the net you type.
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