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Tax Configuration

Combined Federal and State Allocation

Annual Business Expenses

Advertising & Marketing
Online ads, print, social media
100% deductible
Vehicle (Business Use)
Mileage or actual expenses
2025 standard mileage: $0.70/mile
100% deductible
Business Meals
Client dinners, team meals
50% deductible per IRC §274
50% Deductible
Business Travel
Flights, hotels, transportation
100% deductible
Office Supplies
Paper, pens, printer ink
100% deductible
Home Office
Proportional home expenses or $5/sqft simplified
100% deductible
Software & Subscriptions
SaaS tools, professional software
100% deductible
Phone & Internet
Business portion of phone/internet
100% deductible
Professional Fees
Accountant, attorney, consultant fees
100% deductible
Education & Training
Courses, books, conferences
100% deductible
Business Insurance
Liability, professional, health
100% deductible
Equipment & Tools
Computers, machinery (Section 179)
Section 179 up to $1,160,000 in 2025
100% deductible
Office Rent
Office or studio rental
100% deductible
Utilities
Electricity, water for business location
100% deductible
Other Business Expenses
Miscellaneous ordinary & necessary
100% deductible

Come utilizzare Calcolatore Spese Aziendali Deducibili USA 2025

Insert business expenses by category

Insert annual expenditure for each business category. Each is indicated with a deductible percentage.

Set your effective tax rate

Insert your effective federal and state tax rate. The combined federal and state average is 25-35% for most small business owners.

Are you self-employed?

Self-employed workers also save on the self-employment tax (15.3%) and reduce both income tax and SE tax.

Verify total deductible and tax savings

Calculator shows total deductible expenses and estimated tax savings. Keep receipts and use accounting software to track them.

Suggerimenti

  • Track every expense throughout the year: apps like QuickBooks, FreshBooks or even a simple spreadsheet greatly help.
  • If you use a vehicle for the activity, the standard kilometer rate for 2025 is $0.70/mile: record every mile traveled for work.
  • Qualified Business Income Deduction (QBI): Pass-through activity owners can deduct up to 20% of qualified business income - consult a tax professional.

Domande frequenti

What makes a business expense deductible?

Under IRC §162, a business expense is deductible if it is "ordinary" (common in your trade) and "necessary" (helpful and appropriate for the business). Both conditions must be met. Personal expenses are never deductible even if they have some business connection.

Why are business meals only 50% deductible?

Under IRC §274, business meals are limited to 50% deductibility. This reflects the personal benefit component of meals. The meal must have a business purpose, and business must be discussed. Meals for the convenience of the employer (e.g., employer cafeteria) may be 50% deductible.

What is Section 179 expensing?

Section 179 allows businesses to deduct the full cost of qualifying equipment in the year purchased, rather than depreciating it over multiple years. For 2025, the limit is $1,160,000. This accelerates the tax benefit of large equipment purchases.

How does the home office deduction work?

You can deduct the percentage of your home used exclusively and regularly for business. Method 1: Simplified ($5 per square foot, max 300 sq ft = $1,500). Method 2: Regular (actual percentage of home expenses - rent/mortgage, utilities, insurance).