01
The facts live in different places.
Square footage, mileage logs, receipts, business purpose, employee information, and reimbursement history are rarely organized together.
Tax and reimbursement software for business owners and employers
Stop guessing the tax answer. Build the number and the file together.
Your business already makes reimbursement and tax decisions. The problem is that the math often lives in one place, the receipts in another, and the reasoning in someone’s head. TheAccountant.Tax turns those decisions into repeatable calculations, defensible documentation, and a reviewable audit trail.
For business owners, S-corp shareholders, employers, HR, payroll, finance teams, and advisors.
✓ Calculations✓ Defensible workpapers✓ Employee reimbursements✓ Substantiation support✓ Audit trail
theaccountant.tax / dashboard
Your decision file
Calculation + substantiation + implementation support
Home Office
$3,600 reimbursement
Workpaper + plan available
Mileage
12,480 business miles
Log + deduction support
Accountable Plan
Policy package
Ready to generate
Reports
4 files saved
Organized for review
Documented reimbursement decision
READY TO REVIEW
Business-use percentage10.0%
Annual reimbursement$3,600
Monthly amount$300
Supporting records4
Generate workpapers & documents
The problem
The number, support, and reasoning are usually scattered.
Calculate
Use a repeatable method.
Substantiate
Preserve the facts and records.
Document
Keep a file someone else can review.
The situation
You are already making these decisions. The question is how consistently you are documenting them.
A home office gets reimbursed. An employee drives a personal vehicle. A business expense is paid personally. Payroll needs an amount. Finance needs support. Tax needs the file later. None of those decisions are unusual—but they often happen across emails, spreadsheets, receipts, and memory.
02
The calculation becomes a judgment call.
Without a repeatable workflow, two employees—or two managers—can arrive at different answers from similar facts.
03
The file gets built after the fact.
Months later, someone has to reconstruct why the amount was paid, what method was used, and what documentation supported it.
What that costs you
An undocumented decision is cheap today and expensive later.
The cost is not limited to a missed deduction. Weak documentation can mean inconsistent reimbursements, avoidable payroll treatment, more time for finance and tax professionals, and a file that has to be rebuilt when someone asks how the number was determined.
Inconsistent amounts: Similar facts can produce different reimbursements when there is no standard methodology.
Payroll exposure: A reimbursement that is not properly substantiated may be treated differently than intended.
Review friction: Tax, finance, and payroll teams spend time recreating the calculation instead of reviewing it.
Audit reconstruction: The longer the gap between the decision and the documentation, the harder the story is to prove.
The answer
Turn the decision into a workflow instead of a one-off calculation.
Each tool is designed to move from facts → calculation → substantiation → documentation, so the result can be implemented now and reviewed later.
Home Office Deduction & Reimbursement
Compare simplified and actual methods, calculate business use, preserve the allocation methodology, and build support for owner or employee reimbursements.
Explore Home Office →Accountable Plan
Create a repeatable reimbursement framework for owners and employees with business connection, substantiation, calculation support, and retained reimbursement records.
Explore Accountable Plan →Mileage & Vehicle
Work through business-use mileage or vehicle allocations while preserving logs, assumptions, reimbursement amounts, and supporting documentation.
Explore Mileage →Business Expense Reimbursements
Determine how common employee and owner-paid costs should be documented and reimbursed.
View tools →S-Corp Owner Tools
Structured tools for recurring S-corp decisions, owner reimbursements, compensation support, and documentation.
View tools →Workpapers & Reports
Keep the math, assumptions, source records, and generated documents together so the decision can be reviewed later.
Open dashboard →The payoff
Know what to pay, why you are paying it, and what proves the decision.
The value is not another calculator. It is a repeatable decision process that produces the number and preserves the evidence behind it while the facts are still fresh.
1
Capture the facts once.
Collect the business, employee, expense, and usage information the decision actually depends on.
2
Apply a consistent calculation.
Use the same methodology across similar facts instead of rebuilding a spreadsheet every time.
3
Preserve the substantiation.
Keep the records, assumptions, allocation inputs, and business purpose tied to the result.
4
Generate the reviewable file.
Leave behind a workpaper and documentation trail that payroll, finance, tax advisors, or an examiner can follow.
Defensible documentation
Designed around the questions a reviewer is likely to ask.
TheAccountant.Tax uses applicable IRS substantiation requirements and published examination guidance as design inputs. The objective is not to claim IRS approval. It is to help you preserve the facts, calculation, business purpose, and support that explain why the decision was reasonable when someone reviews it later.
01
What happened?
Identify the employee, expense, business purpose, period, and relevant facts.
02
How was the amount calculated?
Preserve the inputs, allocation methodology, assumptions, and resulting amount.
03
What supports it?
Keep the records, logs, measurements, receipts, or other substantiation tied to the calculation.
Who it is for
For the people responsible for getting the tax and reimbursement decision right.
TheAccountant.Tax supports business-owner decisions and employer-side reimbursement workflows where HR, payroll, finance, and advisors need consistent calculations, retained substantiation, and a defensible audit trail.
Business owners
Use the tools to organize facts, calculate amounts, and understand what your business should do before handing the file to your tax professional.
- ✓ Sole proprietors
- ✓ S-corp shareholders
- ✓ Owner-employees
HR, Payroll & Finance
Calculate and document employee reimbursements using repeatable allocation methods instead of round-number stipends or one-off spreadsheets.
- ✓ Home office reimbursements
- ✓ Mileage & vehicle use
- ✓ Employee expense reimbursements
Tax & accounting professionals
Use structured calculations and workpapers to make recurring client and employer questions easier to evaluate, explain, and document.
- ✓ Tax professionals
- ✓ EAs
- ✓ Bookkeepers and advisors
For HR, Payroll & Finance
The real problem is not reimbursing one employee. It is doing it consistently across all of them.
When employees work from home, use personal vehicles, or pay business expenses personally, somebody has to decide what is reimbursable and how much. TheAccountant.Tax gives your team a repeatable process instead of another one-off spreadsheet.
What finance needs later
A reimbursement amount that comes with its own explanation.
The software preserves the inputs, methodology, business connection, and supporting records behind the reimbursement. That means the next reviewer does not have to ask the original manager how the number was created.
Home office: Preserve square footage, business-use percentage, allocable expenses, and reimbursement support.
Vehicle use: Retain mileage or business-use calculations and the underlying records supporting the allocation.
Employee expenses: Tie reimbursement amounts to substantiated business expenses rather than arbitrary allowances.
Internal controls: Create a reviewable record for payroll, finance, tax advisors, internal audit, and future examinations.
Questions
What TheAccountant.Tax is — and is not.
Is TheAccountant.Tax an accounting or CPA firm?
No. TheAccountant.Tax is a software brand and DBA of GDY Software, LLC. GDY Software, LLC is a software company, not a CPA firm, accounting firm, law firm, investment adviser, or tax-preparation firm.
Who operates TheAccountant.Tax?
TheAccountant.Tax is operated by GDY Software, LLC and is a DBA / trade name of GDY Software, LLC.
Does the software replace a tax or accounting professional?
No. The software helps users organize facts, run calculations, and prepare supporting documentation. Unique facts, professional judgment, filing positions, and return preparation may still require a qualified tax professional.
Why is the software built around workpapers and documentation?
Because the calculation is only part of the decision. A defensible file should also show the relevant facts, methodology, assumptions, business purpose, and supporting records while those facts are still available.
Can professionals use these tools with clients?
The product is being designed for both business owners and professionals. Individual tool availability, licensing, and professional-use features may vary as the platform expands.
Can HR, payroll, or finance teams use this for employee reimbursements?
Yes. A core use case is helping employers calculate and document reimbursements for active employees, including home-office and vehicle-related expenses. The objective is a consistent, reviewable allocation with supporting workpapers rather than an undocumented flat amount.
Is the documentation IRS-approved or IRM-compliant?
No. TheAccountant.Tax does not claim IRS approval, endorsement, or a safe harbor. The software is designed with applicable IRS substantiation requirements and published examination guidance in mind so users can preserve the kinds of facts, calculations, and records that may matter in a later review.
Stop reconstructing the answer later
Make the decision. Document it while you make it.
Calculate the amount, preserve the substantiation, and keep a file that explains the decision long after the spreadsheet would have been forgotten.