Estimate your quarterly taxes
Your income
Business expenses
Logged separately from income — these lower your taxable income, same as Schedule C deductions would.
Quarterly deadline reminders
Saved to your account, synced across any device you sign into. Sending an actual email still requires connecting an email provider, which isn't wired up yet — so nothing is sent yet, this just keeps your preferences and shows you the computed reminder dates.
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.