DELIBERATE SCOPE
The Straightforward 90%
Straightforward does not mean small. It means a recognizable tax structure that deserves a clear, complete professional workflow.
On this page
A design target, not a coverage measurement
The straightforward 90% is PrepReturns’ ambition to serve a broad universe of conventional professional returns exceptionally well. “90%” is not a measured claim about the share of returns the current engine supports.
The product starts with S corporations. Its scope is described through supported facts, relationships, calculations, and output—not a revenue cutoff or a promise to handle every business with a familiar entity type.
This distinction makes the phrase useful. It encourages a cleaner path through recognizable work while requiring the software to be explicit about missing information and unsupported situations. It does not remove the preparer’s judgment or turn preparation into an automatic approval.
Conventional can still be substantial
A hypothetical $2 million service business can have several owners, payroll, fixed assets, distributions, shareholder loans, and retirement contributions while retaining a conventional underlying structure. A smaller business can have an unusual transaction that places it outside a bounded system’s intended scope.
Revenue, document count, and tax complexity are different things. The better question is whether the return’s actual facts fit the system’s supported patterns.
PrepReturns’ current S-corp work covers recognizable operations alongside supported owner, basis, asset, and reporting needs. Alpha 14 extends that universe with bounded inventory and COGS, rental real estate, corporate capital sales, vehicles, amortization, paid shareholder-loan interest, and accountable-plan reimbursements.
Each category has limits. “Inventory” does not promise every inventory method. “Vehicles” does not promise a fleet, lease, or fringe-valuation system. The detailed capabilities page explains the supported territory, and the limitations page describes what remains outside it.
Three synthetic businesses, increasing depth
The product examples make the scope easier to inspect. They are fictional businesses used for development and product illustration, not evidence of client-return volume.
Juniper demonstrates the core preparation path in a simpler S corporation: source review, guided decisions, calculations, forms, and workpapers.
Alder Technical Services introduces multiple owners and shareholder-basis work. Its example connects owner activity, suspended losses, debt restoration, payroll, retirement information, and an equipment sale with owner-specific output.
Cedarline Equipment & Supply brings together inventory, commercial rental property, ordinary brokerage sales, a company vehicle, amortization, loan interest, and reimbursements. It is a richer operating-business example while remaining within stated boundaries.
The progression matters more than the labels. It shows how capability grows through interacting facts and output, rather than through a list of disconnected input fields.
Unresolved is different from unsupported
A supported return can still be incomplete. Missing asset history, an unreviewed source conflict, or an unresolved professional decision does not automatically make the whole return outside scope. It means the preparation needs more established information.
An unsupported situation is different. Highly specialized international filings, exotic ownership structures, complex inventory methods, or owner-level limitation systems beyond the corporate engine require a different path. The software should not turn an unsupported circumstance into an ordinary zero or quietly accept a misleading approximation.
PrepReturns’ preparation philosophy preserves those distinctions. Unknown, zero, not applicable, and unsupported communicate different facts. Guidance should help the preparer understand which kind of problem needs attention and why.
The ambition is a useful next step: review this evidence, establish this history, decide this treatment, or recognize that this return requires another tool. A generic warning is less useful than a clear boundary.
Add capability without losing coherence
Scope expands when the new work can participate in the whole preparation system. That includes source facts, professional decisions, deterministic calculations, workpapers, official forms, owner information, diagnostics, and saved history as applicable.
A new input screen is only part of that obligation. Correcting the input must invalidate the right dependent result. Historical packages must retain their meaning. Existing examples must continue to behave as expected. Visible output must contain what the reviewer needs to see.
The Alpha history documents that cumulative engineering. Alpha 14 is the generation for human testing and broader operating-business coverage. It supplies a concrete current product story without implying that every possible professional acceptance question is settled.
The same discipline comes next
Form 1040 is the next major engine. It will carry forward evidence, provenance, explicit unknowns, deterministic calculations, and professional review while using a model designed for households and individual tax law.
The goal is to share good principles without forcing different return types into one universal object. The same discipline should guide future scope: define the universe, explain the boundary, implement the complete path, and review the result.
We would rather handle a defined universe exceptionally well than make every ordinary return feel extraordinary. See the S-Corp Engine for the current expression of that choice.
A conversation worth having.
Product, practice, architecture, or a different idea about what comes next.