Federal Tax Law
U.S. Code / Cornell LII · 2024
Statutory basis for deducting ordinary and necessary business expenses, including contractor labor, materials, and vehicle costs.
U.S. Code / Cornell LII · 2024
Governs the home office deduction rules used in the SoloBid and RentReady calculators.
U.S. Code / Cornell LII · 2024
The 20% pass-through deduction for sole proprietors and single-member LLCs. Applied in all four calculators.
U.S. Code / Cornell LII · 2024
State and local tax deduction. The 2026 OBBBA raised the SALT cap to $40,400 for single filers and $80,800 for married filing jointly.
U.S. Code / Cornell LII · 2024
Depreciation rules for rental property improvements and equipment. Used in the RentReady and FinancingFit calculators.
IRS Publications
Internal Revenue Service · 2025
Official source for the 2026 standard deduction ($16,100 single / $32,200 MFJ), tax bracket thresholds, and contribution limits used throughout the site.
Internal Revenue Service · 2025
Comprehensive guide to rental income, deductible expenses, depreciation, and passive activity rules. Primary reference for the RentReady Tracker.
Internal Revenue Service · 2025
Home office deduction rules for self-employed individuals. Used in the SoloBid Estimator for contractors who work from home.
Internal Revenue Service · 2025
Vehicle mileage deduction rules and standard mileage rate. Applied in the CleanRoute Optimizer for route cost calculations.
Internal Revenue Service · 2025
MACRS depreciation tables and bonus depreciation rules. Used in the FinancingFit calculator for property improvement analysis.
Internal Revenue Service · 2025
Self-employment tax calculation (15.3% on net earnings). All four calculators include SE tax in their net income projections.
Internal Revenue Service · 2025
Rental income and loss reporting form. The RentReady Tracker is designed to help landlords prepare Schedule E inputs.
2026 OBBBA Rules
U.S. Congress / Ways and Means Committee · 2025
The 2026 OBBBA introduced three key changes reflected in our calculators: (1) $16,100 standard deduction for single filers, (2) $12,500 overtime premium deduction cap, and (3) $40,400 SALT cap for single filers.
Internal Revenue Service · 2025
Official IRS implementation of 2026 tax year figures including standard deduction, bracket thresholds, and contribution limits.
U.S. Congress · 2025
New above-the-line deduction for overtime premium pay, capped at $12,500 per taxpayer per year. Applied in the SoloBid Estimator for contractors working overtime hours.
U.S. Congress · 2025
Raises the state and local tax deduction cap from $10,000 to $40,400 for single filers and $80,800 for married filing jointly. Applied in the RentReady and FinancingFit calculators.
Real Estate & Rental
U.S. Department of Housing and Urban Development · 2025
Annual Fair Market Rent data by metro area. Used as a reference benchmark for rental rate inputs in the RentReady Tracker.
National Association of Realtors · 2025
Cap rate benchmarks, vacancy rate data, and rental property investment statistics referenced in the FinancingFit calculator methodology.
Freddie Mac · 2025
Weekly mortgage rate survey. The FinancingFit calculator uses current rate data to model financing scenarios.
Internal Revenue Service · 2025
IRS guidance on what counts as rental income and which expenses are deductible. Core reference for the RentReady Tracker.
Internal Revenue Service · 2025
Covers the 14-day / 10% personal use rule and mixed-use rental property treatment.
Labor & Wages
U.S. Bureau of Labor Statistics · 2025
Wage benchmarks for contractors, cleaning professionals, and property managers. Used to calibrate default hourly rate inputs in SoloBid and CleanRoute.
U.S. Department of Labor · 2025
Federal overtime pay requirements (1.5× regular rate after 40 hours). The OBBBA overtime deduction applies to the premium portion (0.5×) of overtime pay.
Internal Revenue Service · 2025
Self-employment tax rates and the deduction for half of SE tax. Applied in all four calculators.
Internal Revenue Service · 2025
Official IRS standard mileage rate for business use of a vehicle. Used in the CleanRoute Optimizer for per-mile cost calculations.
State Resources
Tax Foundation · 2025
State income tax rate reference used when users select their state in the RentReady and FinancingFit calculators.
Nolo · 2025
State-by-state landlord-tenant law summaries referenced in the RentReady Tracker's compliance checklist.
Internal Revenue Service · 2025
Find a credentialed tax professional (CPA, EA, attorney) in your area. Linked from our Disclaimer page.
American Bar Association · 2025
State bar referral service for landlord-tenant legal questions. Linked from our Disclaimer page.
Calculator Methodology
Solo Landlord Tools / Kaybi Enterprises, LLC
The SoloBid Estimator calculates contractor net income using: gross revenue minus material costs, labor costs, overhead, and vehicle expenses; then applies the 2026 standard deduction, QBI deduction (§ 199A), overtime premium deduction (OBBBA § 1001), and SE tax deduction before computing federal and state tax liability.
Solo Landlord Tools / Kaybi Enterprises, LLC
The RentReady Tracker calculates net rental income using Schedule E logic: gross rents minus mortgage interest, property taxes (capped at SALT limit), insurance, repairs, depreciation, and management fees. It then applies passive activity rules and the QBI deduction where eligible.
Solo Landlord Tools / Kaybi Enterprises, LLC
The CleanRoute Optimizer calculates per-job profitability for cleaning professionals by modeling: job revenue, supply costs, IRS standard mileage rate for travel, time cost at the user's effective hourly rate, and the resulting net income after SE tax.
Solo Landlord Tools / Kaybi Enterprises, LLC
The FinancingFit calculator models rental property investment returns using: purchase price, down payment, mortgage rate, property taxes, insurance, and projected rents to calculate cap rate, cash-on-cash return, and after-tax cash flow using 2026 OBBBA SALT cap rules.
Note on currency: Tax law changes frequently. We review all source links and calculator logic at the start of each tax year and after any significant IRS guidance. If you find a broken link or outdated figure, please contact us and we will update it within 48 hours.