Free Online Tools for Accountants
Professional-grade calculators for accountants — compute taxes, payroll, profit margins, depreciation schedules, and amortization tables. Instant results, completely free.
No sign-up · No data sent to servers · Instant results
File your taxes online for free. Maximize your refund.
Get matched with a CPA or tax advisor. File with confidence.
Sponsored · We may earn a commission at no cost to you
Tax Document Analyzer
AI-powered tax document analysis with deduction discovery and withholding optimization
Use tool →Amortization Calculator
Generate detailed loan amortization schedules showing principal, interest, and balance for each payment
Use tool →Capital Gains Calculator
Calculate capital gains tax on investments and property
Use tool →Crypto Tax Calculator
Calculate cryptocurrency taxes on trades and transactions
Use tool →Estate Tax Calculator
Estimate federal and state estate tax on an inheritance
Use tool →Income Tax Calculator
Estimate US federal income tax with brackets, FICA, and take-home pay
Use tool →LLC vs S-Corp Calculator
Compare LLC vs S-Corp tax savings with side-by-side analysis, self-employment tax breakdown, and optimal salary sensitivity chart
Use tool →Loan Calculator
Calculate monthly payments, interest, and amortization schedules
Use tool →Margin Calculator
Calculate profit margin, markup, and selling price with batch analysis and industry benchmarks
Use tool →Mortgage Calculator
Calculate mortgage payments with taxes, insurance, PMI, and amortization
Use tool →Net Income Calculator
Calculate your net income after federal, state, and local taxes with detailed deduction breakdown
Use tool →Paycheck Calculator
Calculate take-home pay with federal tax, FICA, state tax, and deductions
Use tool →Payroll Tax Calculator
Calculate federal, state, Social Security, and Medicare taxes with detailed net pay breakdown
Use tool →Personal Loan Calculator
Calculate personal loan payments and total interest
Use tool →Profit Margin Calculator
Calculate gross and net profit margins with markup comparison
Use tool →Property Tax Calculator
Calculate property taxes with exemptions and multi-year projections
Use tool →Quarterly Tax Calculator
Calculate quarterly estimated tax payments with federal + state taxes, safe harbor rules, and payment deadlines for all 50 US states
Use tool →Sales Tax Calculator
Calculate sales tax for any US state with multi-item and reverse modes
Use tool →Self-Employment Tax Calculator
Calculate self-employment tax and quarterly estimated payments
Use tool →Stamp Duty Calculator
Calculate real estate transfer taxes, title insurance, and closing costs by state
Use tool →Tax Bracket Calculator
See which tax brackets your income falls into with effective rate
Use tool →Tax Withholding Calculator
Calculate federal tax withholding per paycheck and estimate your refund or amount owed
Use tool →Cron Expression Generator
Build and test cron expressions visually with human-readable descriptions and next run times
Use tool →Frequently Asked Questions
What accounting tools are available on NexTool?▾
NexTool offers a comprehensive suite of free accounting tools including tax calculators, payroll estimators, profit margin analyzers, depreciation calculators (straight-line, declining balance, MACRS), and amortization schedule generators.
Are the tax calculators accurate for professional use?▾
Our tax calculators use current federal tax brackets and standard formulas. They provide reliable estimates for planning and quick calculations, though we recommend verifying with official tax software for filing purposes.
Can I calculate depreciation for different asset types?▾
Yes. Our depreciation calculator supports multiple methods including straight-line, double declining balance, and sum-of-years-digits. Enter the asset cost, useful life, and salvage value to generate a complete depreciation schedule.
Explore Tools for Other Audiences
For Freelancers
Essential calculators and tools for freelancers — estimate income tax, convert hourly rates to annual salary, generate invoices, and calculate profit margins. All free, no sign-up required.
10 toolsFor Students
Must-have tools for students — calculate your GPA, estimate student loan payments, convert grades, and crunch percentages. All free and works on any device.
19 toolsFor Retirees
Plan your retirement with confidence — calculate 401(k) growth, estimate annuity income, project Social Security benefits, and analyze pension payouts. All free and private.
8 toolsFor Homebuyers
Navigate home buying with the right numbers — calculate mortgage payments, estimate closing costs, compare renting vs. buying, and assess property taxes. Free and instant.
17 toolsFor Investors
Sharpen your investment strategy — calculate compound interest, analyze ROI, project stock returns, model dollar-cost averaging, and estimate dividend income. All free.
16 toolsFor Entrepreneurs
Launch and grow your business with the right data — calculate startup costs, project revenue, analyze profit margins, model SaaS metrics, and plan funding rounds. All free.
22 toolsFor Fitness Enthusiasts
Optimize your fitness journey — calculate BMI, track calories and macros, estimate protein needs, measure body fat, find target heart rate zones, and pace your runs.
9 toolsFor Developers
Streamline your dev workflow — format JSON, test regex, encode Base64, generate UUIDs, decode JWTs, parse cron expressions, format SQL, and more. All in your browser.
13 toolsFor Teachers
Simplify grading and classroom math — calculate GPAs, convert grades, compute percentages, and run statistics. Fast, free, and works on any device.
7 toolsFor Parents
Helpful tools for every stage of parenting — track pregnancy milestones, estimate ovulation dates, plan college savings, and more. Free, private, and easy to use.
7 toolsFor Small Business Owners
Run your business by the numbers — calculate payroll, generate invoices, analyze profit margins, estimate taxes, compare loan options, and track employee costs. All free.
46 tools