United States
US Business Calculators — Sales Tax, Working Days, Invoice Dates & Finance Tools
Free US business calculators — sales tax at any state rate, working days with all 11 federal holidays excluded, invoice due dates from Net 30/60/90, gross margin, markup, and CBM shipping volume. All tools are browser-based with no sign-up required.
Varies
Sales tax by state
11
Federal holidays
~250
Working days per year
Net 30
Most common payment terms
Start here
What do you need to calculate?
Calculate US working days
11 federal holidays excluded
Calculate US sales tax
Any state or combined rate
Find invoice due date
Net 30/60/90 from any invoice date
Add business days to a date
Find a deadline N working days out
Calculate gross margin
Pre-tax cost-to-price ratio
Calculate CBM / shipping
LCL sea freight cubic metres
Practical use cases
Useful for US businesses
Invoicing & AR follow-up
Set Net 30/60/90 due dates, adjust for federal holidays, and track overdue status. The Prompt Payment Act requires federal invoices paid within 30 days.
US Net 30 Invoice Due DatePayroll & HR planning
Count working days in a pay period, plan leave windows around 11 federal holidays, and verify notice periods for US employment contracts.
US Working Days CalculatorSales tax calculation
Add state or combined state+local sales tax to prices. Rates vary from 0% (Oregon, Montana) to over 10% in some jurisdictions. Check state nexus obligations.
US Sales Tax CalculatorFreight quotation
Calculate CBM for LCL sea freight imports and exports via US ports. Add business days to estimate delivery windows from POD to warehouse.
CBM for Sea FreightDeadline planning
Find real business-day due dates for contracts, SLA windows, and regulatory filings with federal holidays excluded.
US Real Due Date CalculatorCross-border operations
Compare US federal holidays with Canadian and UK calendars for cross-border invoice scheduling and supply chain planning.
Canada Business CalculatorsMost searched in the US
Tax & Pricing
Working Days & Deadlines
Workflow tip
Use this in your US workflow
After calculating sales tax, invoice due dates, or working days, save the result into your team SOP, spreadsheet, CRM, Slack, Notion, email or checklist. Use the Copy result summary button in each calculator to paste a ready-made note your team can reference without recalculating.
Workflows
US Business Workflows
Invoicing & AR Workflow
- 1. Issue invoiceInvoice Due Date Calculator
Set Net 30 or Net 60 due date from invoice date
- 2. Adjust for weekendsReal Due Date Calculator
Move due date to next business day if needed
- 3. Count days remainingBusiness Days Calculator
See exactly how many working days until due
Pricing & Tax Workflow
- 1. Check gross marginMargin Calculator
Verify cost-to-price ratio before quoting
- 2. Calculate sell priceMarkup Calculator
Apply markup % to land at target margin
- 3. Add sales taxUS Sales Tax Calculator
Add state + local rate for customer total
Logistics & Shipping Workflow
- 1. Calculate cargo volumeCBM Calculator
Get total m³ for LCL sea freight quote
- 2. Find delivery deadlineAdd Business Days
Dispatch + transit days to arrival date
- 3. Set payment due dateInvoice Due Date Calculator
Match supplier invoice to working-day terms
UtilityPilot App
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Open the app to pin your most-used calculators, save results, and access your country tools from any device.
All Tools
All US Business Tools
US Sales Tax Calculator
Add or remove US sales tax at any state or combined rate. Shows pre-tax, tax amount, and total.
US Working Days Calculator
Count working days between two dates with all 11 US federal holidays excluded for 2026.
Business Days Calculator
Count working days between any two dates, weekends excluded. No holidays deducted.
Add Business Days
Find a future date by adding N business days — useful for Net 30 deadlines and SLA targets.
Invoice Due Date Calculator
Calculate payment due dates from invoice date and net terms (Net 7, 14, 30, 60, 90).
Real Due Date Calculator
Adjust a due date to the next business day when it falls on a weekend or public holiday.
Margin Calculator
Calculate gross profit margin from cost and selling price — essential for ecommerce pricing.
Markup Calculator
Calculate selling price from cost plus a markup percentage.
CBM Calculator
Calculate cubic metres for sea freight shipping volumes and LCL quotes.
Work Hours Calculator
Calculate total working hours across shifts — useful for US payroll and timesheets.
Time Card Calculator
Weekly hours, overtime and gross pay from daily start/end times and breaks.
Business Loan Calculator
Business loan repayments, total interest, fees and effective annual cost (APR).
Reference
US Sales Tax — State Rate Reference
| State | State Rate | Max Combined |
|---|---|---|
| California | 7.25% | 10.75% |
| Texas | 6.25% | 8.25% |
| New York | 4% | 8.875% |
| Florida | 6% | 8.5% |
| Illinois | 6.25% | 10.25% |
| Tennessee | 7% | 10% |
| Washington | 6.5% | 10.4% |
| Oregon | 0% | 0% |
| Montana | 0% | 0% |
| Delaware | 0% | 0% |
Rates indicative — verify current combined rate for exact delivery address.
FAQ
US Business FAQs
How do I calculate US sales tax?
Enter the pre-tax price and the applicable state or combined rate into the US Sales Tax Calculator. Rates vary by state — from 0% (Oregon, Montana, Delaware) to over 10% in combined state+county+city rates in some Tennessee and Louisiana jurisdictions.
How many US federal holidays are there?
There are 11 federal public holidays: New Year's Day, MLK Jr. Day, Presidents' Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving, and Christmas. Some states observe additional state-level holidays.
What is a Net 30 invoice due date?
Net 30 means the invoice is due 30 calendar days from the invoice date. For example, an invoice dated 1 March is due 31 March. Use the Invoice Due Date Calculator to find the exact date for any net terms from Net 7 to Net 90.
How many working days are there in the US in 2026?
The US has approximately 250 working days in 2026: 365 calendar days minus 104 weekend days minus 11 federal holidays on weekdays. Use the US Working Days Calculator for exact counts between any two dates.
What is a good gross margin for US ecommerce?
US ecommerce gross margins typically range from 30–50% for physical goods. Marketplace sellers on Amazon or Shopify should include platform fees (8–15%) in the cost before calculating margin. Use the Margin Calculator to model your exact ratio.
How does US sales tax differ from VAT?
US sales tax is charged only at the final point of sale — businesses do not pay sales tax on inputs. VAT (used in the UK and EU) is charged at every stage of the supply chain with businesses reclaiming input VAT. US sales tax rates are determined by state and local jurisdiction.
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All US tools are free and browser-based. No sign-up required.