quartersync

Federal Free closed test

Stay on track with supported federal estimated-tax planning.

Federal Free is a recurring quarterly workspace for supported self-employed users to update business income, expenses, and mileage; review a federal planning estimate; track reserves and recorded payments; and see the next supported action.

Production is currently waitlist-gated. Access and an availability date are not guaranteed. Email reminders are not currently available.

Narrow supported scope

Federal Free supports limited Single and Married Filing Jointly profiles with one cash-basis Schedule C service business, no W-2 or other income, no dependents or credits, positive projected profit, supported current expenses and standard mileage, and no material business complexity. Incomplete or unsupported situations receive no calculation dollar results.

Who Federal Free supports
  • Single, or bounded Married Filing Jointly where exactly one spouse owns and operates the business and the non-owner spouse has no income.
  • Taxpayer and applicable spouse under 65, not blind, not claimable as dependents, with no dependents or dependent-related credits.
  • Full-year U.S. citizen or resident-alien calendar-year Form 1040 or 1040-SR taxpayers.
  • One U.S.-connected cash-basis Schedule C service business with positive projected profit.
  • No W-2 income or withholding, other income, inventory, employees, payroll, depreciation, home-office calculation, prior-year losses affecting 2026, or complex business arrangements.
  • Optional prior-year information for a supported comparison; current-year projection without it; equal-installment guidance only for reasonably even income.

Request closed-test access

Production is currently waitlist-gated. Joining the waitlist does not guarantee access or an availability date.

Planning estimates depend on complete and accurate inputs and supported situations. Quartersync does not prepare or file returns, submit payments, provide professional tax, legal, accounting, or financial advice, or guarantee accuracy or penalty avoidance.

Support: support@quartersync.com. Do not send sensitive tax, financial, or authentication information.

Quartersync is currently operated by its founder as an unincorporated business.