What this tool does
Most people paid through DoorDash, Uber, Instacart or their own clients know what they make in a month or a week, not in a year.
This calculator starts from that. You enter one month's (or one week's) earnings, business miles and other costs, and your filing status and state.
It works out the tax for a year of months like that one and shows the share of each month's pay to set aside for tax.
It runs in your browser. What you type is saved in this browser so it is there when you come back; the calculator does not send it to our server.
The Month and Week buttons above the calculator switch between the two at any step, with the same numbers.
For a whole year with every deduction, credits, the quarterly due dates and how to pay, use the annual estimator;
the last step of this calculator links to it, and it opens with what you typed here.
The rules it applies
- From a month to a year. A month's amounts are multiplied by 12, a week's by 52. Tax brackets, the standard deduction and the
Social Security wage base are yearly, so the tax is worked out on the year and then divided back by 12 or 52.
- Business costs. Miles at the standard mileage rate of $0.725 a mile (the January–June 2026 rate,
used for every mile so the deduction is not overstated), plus the other costs you enter.
- Self-employment tax. 15.3% (12.4% Social Security, 2.9% Medicare) on 92.35% of the year's profit (Schedule SE).
- Income tax. Half of the self-employment tax comes off, then the standard deduction and the qualified business income (QBI) deduction,
then the federal brackets for your filing status. The Child Tax Credit and the Earned Income Tax Credit are applied for the children you enter.
- State tax. Your state's flat rate where it has one, otherwise a typical rate.
The engine is the same one the annual estimator uses. Sources are IRS Publication 505, Schedule SE, Publication 334 and the yearly inflation adjustments; the
methodology page lists every figure and the year it belongs to.
How to read the result
The amount appears under your earnings as you type, before any other question. Filing status, children and state make it closer;
until you choose a state, the amount is federal tax only and says so, rather than guessing a state for you.
The large figure is the amount to set aside from a month's (or a week's) earnings: the year's estimated tax divided by 12 (or 52),
with the same amount for a week, a month, a quarter and the year next to it.
Under it, each tax is listed the same way, so the lines add up to the amount to set aside, and the working line shows the multiplication and the division.
If you also have a W-2 job and entered it in the annual estimator, tax already withheld from your wages comes off first.
To keep the amount up to date payout by payout, the set-aside tracker uses the same share.
What it does not do
- It does not file a return or replace one. It is an estimate for planning.
- It treats every month as the same. If your earnings change with the season, use the annual estimator with the year's total.
- It does not ask about health insurance, retirement contributions, a home office or the tips deduction. If you entered them in the annual estimator,
they are used and listed under the result.
- State tax is one rate on your taxable income, not your state's full bracket table. City and county taxes are not included.
- It does not pay the IRS or move money. Estimated tax is paid four times a year; the annual estimator shows the dates and how to pay.
An example
Example. A single delivery driver in Texas earns $4,000 in a month, drives
1,000 business miles and spends $150 on a phone and supplies.
Over a year that is $48,000 of earnings and $10,500 of business costs,
so profit is $37,500. Self-employment tax is $5,299 and federal income tax is
$1,552. Texas has no state income tax, so the year's tax is $6,851.
Divided by 12, that is $571 to set aside each month, 14.3% of what the driver earns.
Read more
The guides cover the decisions around the numbers, such as
how much to set aside and the
1099 tax guide. Who runs this site is on the about page,
and every result is an estimate as described in the disclaimer.
There are also guides for DoorDash, Uber, Lyft,
Amazon Flex, Grubhub, Spark,
Uber Eats and Instacart drivers and for freelancers.