Self-employment tax calculator

Stop overpaying. Start planning.

Tax time shouldn't be a guessing game, should it? Legacy Finance turns freelance tax estimating into a clear, live calculation with mileage deductions, multiple income streams, and quarterly reminders baked in.

IRS Schedule C and SE formulas
Mileage tracking with two methods
Quarterly payment planning

Real-world accuracy validated by Indianapolis CPAs. Quick, calm, and built for people who work across apps, clients, and miles.

See your estimate in real time

Enter a few numbers. Watching your tax set-aside change as you type feels pretty good, doesn't it?

$8,420
Estimated quarterly set-aside
$2,105
Mileage deduction
$9,483

Uncover deductions most freelancers miss

Mileage, home office, gear, insurance — the usual suspects, but handled with more care. Why leave money on the table when a few clicks can reveal what actually belongs in your estimate?

Mileage deduction

Compare the standard rate against actual vehicle costs, then see which method gives your side hustle the cleaner result. Useful for Uber, Lyft, and anyone piling up miles.

Tap to inspect the breakdown

Home office method

Use the simplified square-footage route for a quick estimate, or keep the conversation going with a more detailed workspace review. Small room, meaningful deduction.

Hover for a quick summary

Equipment and supplies

Laptops, cameras, microphones, stationery — if your income depends on it, the calculator helps separate ordinary spend from deductible business expense. Neat and tidy.

Open the detail card

Health insurance adjustment

Self-employed premiums can change your picture fast. Why estimate blind when the adjustment can be folded into your tax plan right away?

Review the adjustment note

Juggling multiple gigs? We’ve got it.

One stream rarely tells the whole story. Add rideshare, consulting, Etsy, remote contract work — whatever keeps the month moving — and the calculator blends it into one clean self-employment tax forecast.

Unlimited income streams

Keep separate amounts for each client or platform, then watch the aggregate estimate update instantly. That kind of visibility changes decisions, doesn't it?

Automatic blending

Gross receipts, deductible expenses, and self-employment tax all meet in one place, so you don't have to manually stitch together the numbers every quarter.

Threshold alerts

When a stream starts pushing your liability higher, you'll see it clearly before the surprise lands in your inbox.

Rideshare income
Freelance consulting
Add another stream

Never miss a quarterly deadline

Four dates. Four chances to stay calm. Set your payment plan early, export reminders, and keep the IRS timeline from turning into a last-minute scramble.

April 15

Q1 estimate

Review the year after tax season starts. The figure updates from your year-to-date income, so what you see is grounded in current work.

June 15

Q2 estimate

Mid-year is where under-set-asides usually show up. Catch it here instead of in a panic later.

September 15

Q3 estimate

By autumn, your mix of clients may have shifted. Recalculate and keep the payment plan aligned with reality.

January 15

Q4 estimate

Close the loop before year-end books settle. One clean final payment can save a lot of friction.

Calculation methodology you can trust

The maths isn't decorative. It follows IRS Schedule C and SE logic, then layers in state handling where relevant. Why settle for a fuzzy estimate when the method can be this transparent?

Official Schedule C and SE formulas
State-specific logic for US filings
Approved by Indianapolis tax professionals

Saved $3,200 in overlooked deductions

A real-world style result, built for drivers, consultants, and people who keep receipts in three different places. The mileage tracker can quietly surface cash you were never planning to find.

$3,200

“The mileage tracker alone found $3,200 I would have missed.”

Mezquital Whallen
Lyft driver, Indianapolis

Before

Estimated tax set-aside: $8,900


After

Estimated tax set-aside: $7,120

Cleaner numbers. Less stress. More control over the next payment cycle.

Self-employment tax questions

You probably have a few. Good. Clear answers make planning easier, and this is one of the few places where a straight answer actually feels relaxing.

It’s 15.3% for Social Security and Medicare on the self-employment portion, subject to the current wage base rules. That’s the big number most people want first, right?
Generally yes, if you expect to owe $1,000 or more for the year. The planner keeps the dates visible so the deadline doesn't sneak up on you.
Use either the standard mileage rate or your actual expenses. The calculator helps you compare both without doing the arithmetic twice.
Yes, often as an adjustment to income for self-employed coverage. A small line item can have a bigger effect than you'd expect.
Consultants can blend client income, deductible business costs, and projected tax in one view, which is far easier than maintaining three separate spreadsheets.
Absolutely. It was designed for drivers, creators, and remote workers who need a freelance tax estimator that keeps pace with irregular income.

Take the guesswork out of self-employment taxes.

Start calculating free, get instant results, and keep your quarterly plan under control. No commitments. Just cleaner numbers and a calmer filing season.

Start Calculating Free