Professional tax tools that run on your machine.
Single-purpose planning tools for CPAs, EAs, and financial advisors. Each one is a single self-contained file: deterministic, rule-based tax math that runs in your browser — no AI, no account, no server, nothing your clients enter ever leaves the machine. Buy it once for $49.99, white-label it, and run it on as many clients as you want.
Built by Piotr Nalepa, EA — a practicing Enrolled Agent, twenty years in tax practice.
- $49.99 per tool · one time
- You own it — unlimited clients
- White-label deliverables
- Deterministic math — no AI
- Runs on your machine
The tools.
Roth Conversion Calculator
Strategize the Roth conversion. Get ahead of future RMDs.
Show a client exactly how much to convert this year — modeled against the brackets they have left, IRMAA thresholds, NIIT, and the future RMDs that would otherwise force higher-taxed withdrawals later. Reads the prior-year 1040 PDF so you're not retyping.
See the tool — $49.99 one timeS-Corp vs. Sole Prop Analyzer
Model the S-corp election and the salary/distribution split.
Compare staying a sole proprietor against an S-corp election: self-employment tax versus payroll cost, the QBI §199A interplay, and the retirement-contribution trade-off — with a reasonable-compensation estimate as a starting point and a branded report for the client conversation.
See the tool — $49.99 one time- One price, then it's yours
- Each tool is a one-time $49.99 purchase. No subscription, no per-return fee, no seat counting — run it on every client in the practice. All 2026 tax-year updates are included; updates for later tax years are a small one-time fee, only if and when you want them.
- White-label, your brand throughout
- Your firm's logo, name, and report by-line on the tool and on every report it generates. Only the underlying software copyright remains ours.
- The client's data never leaves your machine
- There is no server — each tool is a single file that does all its work in your browser and runs with the network turned off. No account, no upload, no cloud copy.
- Math you can stand behind
- Every figure comes from deterministic, rule-based tax math — no AI guesswork. Results are consistent, auditable line by line, and the same every time.
Pick a tool. Own it by this afternoon.
Each tool is a single download you keep. Questions about firm rollouts, multiple preparers, or white-label setup — email us and we'll set you up. info@nalepalabs.com