Your shoebox, finally organised.

Track what comes in and what goes out against real Schedule C lines. Keep receipts. Log miles. Know what to send the IRS each quarter, before the quarter ends.

For anyone who runs a business — or just got a 1099.

No account. No card. No upload. It opens and you start typing.

$0 forever 0 data leaves your device 2026 federal rates Works offline
What it does

Everything between one tax year and the next.

Not filing software. The year-round part that makes filing survivable — and the part almost nobody keeps up with.

Ledger

Income and expenses, by line

Every entry maps to an actual Schedule C line. Line 22 supplies, line 24b meals, line 36 inventory. At filing time you read totals instead of sorting a shoebox.

Receipts

Snap it and forget it

Photograph a receipt at the register. It attaches to the expense and stays on your phone. Thousands fit.

Mileage

Rates that change mid-year

2026 has two business mileage rates — the IRS raised it on July 1. Trips are valued by date automatically. Most trackers get this wrong.

Quarterly

What to pay, and when

Safe harbor or a full projection through self-employment tax, QBI, and the real brackets. Plus the cents per dollar of profit to set aside so the quarters take care of themselves.

Documents

W-2s, 1099s, last year's return

One place for everything a preparer will ask for. The checklist adapts to your situation rather than showing everyone the same generic list.

Contractors

1099s without the January scramble

Track who you paid and whether you have their W-9. Flags at the 2026 threshold of $2,000 — and knows not to 1099 card payments, because the processor already did.

Checkup

Find the weak spots first

Scores your records and names the gaps: expenses over $75 with no receipt, entries with no business purpose, mileage with no reason. Deductions fail on documentation more often than on substance.

What if

Model it before you buy it

See what an $8,000 freezer actually saves before December. Usually less than people hope — which is the point.

Learn

Plain English, in context

Why meals are half deductible. Why you owe two taxes. What an LLC does and does not do. Explained where you hit the question, not buried in a help centre.

You might already be one

If you got a 1099, the IRS considers you a business.

Nobody tells you this. There is no letter, no form, no moment where it becomes official. You just drove, or sold, or picked up a side job — and now you file differently than you used to.

Delivery & rideshare

DoorDash, Uber, Instacart, Amazon Flex

Your miles are the single largest deduction you have, and they only count if you logged them. At 76¢ a mile, 10,000 miles is $7,600 off your taxable income.

Selling online

Etsy, eBay, Poshmark, Whatnot

Materials, shipping, packaging, platform fees, and the portion of your home you work in are all deductible. Most sellers claim none of it.

Side work

Photography, cleaning, tutoring, handyman

Paid in cash or through an app, the income is reportable either way — and so are the tools, the drive, and the supplies you bought for it.

The part that catches people out

An employer quietly pays half of your Social Security and Medicare. Working for yourself, you owe both halves — 15.3% on top of income tax. It is why someone in the 12% bracket can face an effective rate near 25%, and why a first tax bill often arrives far larger than expected.

It is also why deductions matter more to you than to someone on a paycheck. Every one reduces both taxes at once. A mile you did not write down is money you handed over for no reason.

Zack Tax exists for the year-round part: record it as it happens, so April is arithmetic instead of archaeology.

Privacy

Your records never leave your device.

Not a marketing line. There is no server to send them to.

Stored in your browser, on your phone or computer Receipts, income, expenses, documents — all of it held locally, the same way an offline app holds its files.
No account, no email, no password Nothing to sign up for, because there is nothing on our end to sign into.
No bank connection We never ask for credentials or link to your accounts. You type what you spent.
No tracking, no analytics, no ads No third-party scripts watching what you do. Nothing to sell, because nothing is collected.
Works with no connection at all Once loaded it runs offline. Add it to your home screen and it behaves like any other app.
You can take it with you One button exports everything, receipts included. Restore it on any device.

The trade-off, stated plainly

Because nothing is uploaded, nothing syncs. Your phone and your laptop keep separate records, and if you clear your browser data or lose the device, the records go with it.

Download a backup regularly. The app will nag you if you have not. That is the honest cost of not handing your financial life to a company you have to trust.

Being straight with you

What this does not do.

Worth knowing before you invest a year of records in it.

It does not file your return

Only an IRS-authorised e-file provider can transmit a return, and we are not one. What it does is prepare a worksheet with every figure organised by form and line, ready to enter into filing software or hand to a preparer.

It is not tax advice

It explains how the rules work and calculates from what you enter. It cannot tell you what to do in your situation. Anything involving an election, an entity change, or a large number deserves a qualified preparer.

Federal only, for now

State income tax is not calculated. The sales tax tool works anywhere but you set your own rate — we do not look up what is taxable where you are.

It does not connect to your bank

Automatic import is genuinely convenient. It also means handing over credentials. This is the manual trade: more typing, nothing shared.

Questions

The things people ask.

Is it really free?

Yes, and there is no upgrade waiting. It costs almost nothing to run because there are no servers — the app runs entirely in your browser.

How do I use it on my phone and my laptop?

Export a backup from one and restore it on the other. There is no automatic sync, and there cannot be without a server holding your records. That is the deliberate trade.

What if I clear my browser data?

Everything is erased. This is the one real risk, and it is why the backup button exists and why the app reminds you. Adding it to your home screen also tells the browser to stop clearing it.

I drive for DoorDash. Is this for me?

Yes, and you are exactly who it is easiest to help. Gig income goes on Schedule C, the same form a storefront uses, so the whole app applies to you — the mileage log most of all.

You do not need an LLC, a business name, or a separate bank account to use it. You just need to have been paid for something other than a regular paycheck.

I only made a few thousand dollars on the side. Does that count?

If you netted $400 or more from self-employment, you are required to file a return reporting it, even if you owe no income tax. Payment apps and platforms report to the IRS separately, so the income is generally visible regardless of what you do.

The good news is that deductions apply at any size. Small income with tracked expenses often produces a much smaller bill than small income with none.

Can I use it for more than one business?

Yes. Add as many as you run and switch between them. Each gets its own Schedule C in the worksheet, which is how the IRS wants it, while quarterly taxes combine them — you file one return no matter how many businesses you have.

Are the tax figures current?

They are 2026 federal figures taken from primary sources: IRS revenue procedures, the Social Security Administration, and the statute. Several tax sites were still publishing last year's numbers when this was built, so we went to the source. They are reviewed every January.

What happens if I stop using it?

Export a CSV and a backup. The CSV opens in any spreadsheet and the figures are organised by Schedule C line, so nothing is locked in.

Who made this?

A small business owner in East Texas who runs several businesses and got tired of April. It was built for those books first, then opened up.

Start with your last purchase.

Nothing to set up. Even a $12 box of gloves is a deduction.