Know which side hustle is actually worth it — after tax.
Log real income by platform, month by month, and TaxStash shows you exactly what to set
aside for quarterly taxes — plus which platform is really paying you the most
once the IRS takes its cut. No bank-linking. No guessing. No surprise bill.
Zero bank access, ever·Real progressive tax brackets·Data secured to your account only
Estimated total tax owed
$8,003
YouTube$1,390
DoorDash$960
Best earner: YouTube
4-month streak
Here's what's actually true right now
Not marketing copy — this is the current state of the law and the market.
47%
of independent workers set aside nothing for taxes each month.1
63%
fear they'll owe more than expected when the bill finally arrives.1
7%
is the IRS underpayment interest rate this quarter — compounding daily on whatever you're short.2
$20K
+ 200 transactions is the 2026 threshold before many platforms have to send you a 1099-K. Below that, the income's still taxable — you just won't get a form reminding you.3
Translation: your platform may never send you a 1099 this year. That doesn't mean the IRS forgot about the income — it means nobody's tracking it but you. That's the entire reason TaxStash exists.
How it works
1
Log income by platform
Add YouTube, OnlyFans, DoorDash, Etsy — whatever pays you — and log real monthly numbers, not a guess.
2
See what to set aside, live
Real progressive federal brackets, self-employment tax, and the QBI deduction — computed as you type.
3
Compare and decide
See which platform is actually worth your time after tax, updated every month you log.
How TaxStash gets the number
Not "trust our engine" — here's the actual math, run through TaxStash's own calculator.
Example: $50,000 revenue − $10,000 expenses · Single filer · California
Platform revenue$50,000
−Business expenses$10,000
=Net profit$40,000
+Self-employment tax (15.3% on 92.35% of profit)$5,652
+Federal income tax (after standard deduction & QBI)$1,775
+California state tax (flat-rate estimate)$3,720
Recommended tax stash$11,147
Every assumption — tax year, brackets, the QBI deduction, IRS safe harbor — is the same math shown line-by-line in your own calculator.
Free calculators give you a number. TaxStash gives you a reason to check back.
The only tool that compares platforms
See which income stream actually pays after tax — most tax tools, free or paid, give you a single overall number for everything combined, not a platform-by-platform breakdown.
Zero bank access. Ever.
We never ask for your banking login — every "automatic set-aside" competitor requires you to switch your bank to theirs first.
Real math, not a flat guess
Real progressive brackets, the QBI deduction, and IRS safe-harbor math — most free calculators approximate with a flat 25–30% rule.
Built to become a habit
Streaks and monthly trends turn quarterly dread into a two-minute check-in you actually keep up.
How TaxStash actually compares
Publicly listed pricing and features as of September 2026 — see each provider's own site for current terms.4
TaxStash
Keeper
FlyFin
Found
Annual price
$0 – $39.99
$99 – $399
$192 – $348
$0 – $720
Requires linking your bank
Never
No
No
Yes — it's a bank account
Compares platforms side by side
Yes
—
—
—
Real progressive brackets + QBI + safe harbor
Yes, built in
Filing-time only
Filing-time only
Basic estimate
One-tap cancel
Yes
Reported friction5
Reported friction5
Yes
TaxStash is priced for people who want the accuracy without the bank account or the $200+/year commitment. That's the whole trade.
Coming from QuickBooks Self-Employed?
Intuit discontinued it in 2026 and pointed everyone to a different product. If you built a habit of tracking income there and don't want to relearn a new tool from scratch, TaxStash is a reasonable place to land — platform-by-platform logging, not a generic ledger.
We don't have an automatic QBSE importer yet, and we'd rather tell you that plainly than
ship an importer that quietly gets your numbers wrong. Your fastest path today: export your
QBSE transactions, then re-enter the monthly totals per platform here — most people are done
in under ten minutes for a full year.
Want a real accountant's opinion, not just software?
77% of self-employed workers say they don't understand how to maximize their deductions.6
That's a real question TaxStash can't ethically answer for you — we're a calculator, not a CPA.
We're building a vetted referral network so you can book a real professional when you actually
need one. It's not live yet.
We'll only use this to reach out if a real CPA referral network ever launches — no spam, nothing shared with anyone else.
Built for estimates, not pretending to be your CPA
We'd rather you know exactly what TaxStash is — and isn't — before you type in a single number.
It's an estimation tool, built to keep you from being blindsided — not a substitute for a licensed tax professional.
It never touches your bank account. No Plaid, no bank login, ever — you type in numbers, that's the whole data flow.
It doesn't prepare or file your return. TaxStash tells you what to set aside during the year — filing still happens with your CPA or filing software of choice.
Tax rules are versioned by year — 2024, 2025, and 2026 use their own real brackets, deductions, and thresholds, not one number stretched across years.
Every estimate is inspectable. See exactly how a number was built in the methodology walkthrough above.
Your data is yours. Real Supabase auth, hashed passwords, row-level security — nobody else's account can see your numbers, including us in normal operation.
State coverage is honest, not padded. TaxStash currently covers federal estimates plus 11 states (CA, NY, TX, FL, WA, IL, PA, OH, GA, NC, MI) — more added as each one is verified. A state we haven't verified yet simply isn't in the list, so you can never end up with a silently wrong number for one we don't actually support.
Plans
Every new account gets 21 days of unlimited platforms, no credit card required. Cancel anytime — pay only if tracking more than one platform is worth it to you after that.
Free
$0
The full accuracy engine, no income log.
Unlimited quick calculations
Safe-harbor & QBI included
No ongoing income tracking
Token pack
$2.99
Start tracking real income. No subscription.
1 tracked platform, always
10 saved calculations, refilled each purchase
No subscription
Buying another pack refills your 10 saves — it doesn't add a 2nd platform. Need more than 1? A subscription is unlimited.
Monthly
$7.99/mo
Unlimited platforms, full insights.
Unlimited platforms
Platform comparison & trends
Deadline reminders
Renews automatically at $7.99/mo until canceled.
Best value
Annual
$39.99/yr
That's $3.33/mo — save $56/year (58%) vs. paying monthly.
Everything in Monthly
Matches how often you actually check — 4–6x a year
Priority support
Renews automatically at $39.99/yr until canceled.
21 days free · No credit card required · Monthly and annual plans renew automatically until canceled · One-tap cancel, always · No hidden annual-as-monthly pricing tricks.
Stop guessing what you owe.
SET ASIDE
$2,001
Due Jun 15
TaxStash
know what to set aside
21 days free·No card required·Cancel anytime
Real account, secured by Supabase Auth — your password is hashed and never stored in
plain text, and database rules (row-level security) keep your data visible only to you.
Your changes aren't being saved. This browser is blocking local storage —
common in private/incognito windows or with cookies fully disabled. Switch to a normal
browser window to keep what you enter here.
Estimates only — not tax, legal, or financial advice. Confirm with a licensed
CPA before filing or paying.
Estimate your quarterly taxes
Saved calculations
Your Tax Vault
Already spoken for. Move it out of your spending money.
$0
Your income
Business expenses
Logged separately from income — these lower your taxable income, same as Schedule C deductions would.
Year-to-date, from your actual logged income
Quarterly deadline reminders
Email sending isn't live yet. Set your preferences below and they're saved for
when it is — nothing will be emailed to you in the meantime. You'll still see your computed
reminder dates right here on this page.
Give us feedback
Tell us what's confusing, what's missing, or what you wish worked differently — every
message goes straight to the person actually building this, not a support queue.
Federal + optional flat-rate state approximation. TaxStash never requires bank access
and never files on your behalf. See the notice above — these numbers are estimates,
not guarantees.
Upgrade your plan
Track real income and save calculations by picking what fits — you can switch anytime.
You'll be redirected to Stripe's secure checkout to complete your purchase.
Choose a platform to keep
Reset your password
Enter the email on your account and we'll send a link to set a new password.
Set a new password
You clicked a real password-reset link — choose a new password to finish.