Small Business Tax Calculators
Make smarter spending decisions. Know what you can deduct before tax season, not after.
Home Office Deduction Calculator
Simplified vs. Actual Expense Comparison
- ✓ Side-by-side method comparison with clear recommendation
- ✓ Break-even analysis: when actual expenses beat simplified
- ✓ "What if" scenarios for office size and expenses
- ✓ Tax savings estimate based on your bracket
Business Mileage Calculator
Standard Rate vs. Actual Costs
- ✓ Compare standard mileage vs. actual vehicle costs
- ✓ Monthly/weekly breakdown of your savings
- ✓ "Is tracking worth it?" threshold calculator
- ✓ Historical rate trends and projections
Business Expense Estimator
Tax Savings by Category & Bracket
- ✓ Real tax savings based on your tax bracket
- ✓ Category breakdown: 100% vs. 50% deductible
- ✓ Commonly missed deductions checklist
- ✓ Year-end projection at current spending rate
Why Use These Calculators?
Make Better Spending Decisions
Know the tax impact before you buy. Should you upgrade your home office? Buy vs lease a vehicle? These tools help you decide.
Plan Ahead, Not After
Most people only think about deductions at tax time. Use these year-round to maximize savings and avoid surprises.
Always Current
Updated with 2026 IRS rates, limits, and rules. No outdated information or guesswork.
Share With Your Accountant
Every calculation has a shareable link. Send results directly to your CPA or bookkeeper.
Need to organize your receipts and invoices?
Once you know your deductions, you need the paperwork to back them up. SendItSheets extracts data from invoices, receipts, and bank statements into organized spreadsheets — in seconds.