Know what to set aside.
The second you get paid.
Log each payment by hand — amount and client, that’s it — and SideTax shows you exactly what to set aside for taxes and when your next quarterly deadline lands. No bank linking, ever.
NOTICE OF AMOUNT DUE
YOU MAY OWE ESTIMATED TAX.
- Amount due
- UNKNOWN
- Deadline
- SOONER THAN YOU THINK
- Penalty
- POSSIBLY
- Your records
- A SHOEBOX, MOSTLY
FAILURE TO PLAN AHEAD MAY RESULT IN MARCH.
Set aside $312 of this $1,200 invoice.
- To set aside
- $312.00 e.g.
- Of payment
- $1,200.00
- Next deadline
- Sep 15
- Status
- You’re covered
Same numbers. One of them just stopped scaring you.
The math doesn’t change — your set-aside is your set-aside. What changes is knowing it the moment the money lands, instead of discovering it in April. SideTax keeps a running answer so “how much of this is actually mine?” has a number, every time. (Figures shown are illustrations, not personalized tax advice.)
- 1a Log a payment in seconds
Amount and client, done. No bank linking, no Plaid, no transaction scraping — your money’s whereabouts stay yours.
- 1b Instant set-aside math
Federal plus self-employment tax, calculated as you log. State-aware percentages in Pro.
- 1c Deadline push reminders
All four estimated-payment dates — Apr 15, Jun 15, Sep 15, Jan 15 — nudged to you before they bite.
- 1d Safe-harbor logic
Safe harbor means paying a set share of last year’s tax so the IRS won’t penalize you, even if you earn more. SideTax aims for that line, so your estimate is defensible.
- Income streams
- 1
- Current-quarter set-aside
- Included
- This quarter’s deadline
- Included
- State-aware %
- —
- Accountant export
- —
- Income streams
- Unlimited
- All four deadlines + reminders
- Included
- State-aware %
- Included
- Year-end export for your accountant
- Included
- Annual billing
- $39.99/yr · save 33%
These amounts are planned, not final. Waitlist members lock in early-bird pricing. No payment is due upon filing this form.
When does it launch?
It’s in active development now. There’s no app to download yet. Waitlist members get first access — we’ll email you the moment there’s something to log into.
What do I get for signing up?
Early access ahead of public launch, and locked-in early-bird pricing on Pro. We’ll send build updates, not spam — and nothing else uses your email.
Is this tax filing or tax advice?
No. SideTax is an estimator — it tells you what to set aside. It does not file returns and is not a substitute for a tax professional. For your actual filing, talk to an accountant.
Why no bank linking?
Because privacy is the entire point. Other tools make you connect your checking account and scrape every transaction. SideTax never sees your bank — you type the payment, we do the math.
What about state taxes?
State-aware set-aside percentages are planned for Pro, so your number reflects where you actually owe — not just the federal slice.
What counts as a payment?
Any self-employment income — an invoice paid, a gig settled, a marketplace payout. You log the amount and who it came from; SideTax handles the set-aside.
Under penalties of nothing, I declare that I would like early access to SideTax.