1. Arizona-specific invoice requirements
- Sales tax line: 5.60% state rate. Most services rendered in Arizona are exempt from sales tax — but materials, parts, and tangible goods are not. TPT (transaction privilege tax) of 5.6%; combined commonly 8-11%.
- Late-fee cap: Arizona statute Ariz. Rev. Stat. §44-1201 caps interest on unpaid invoices at 1.5% per month. Spell out the rate in writing on every invoice and in your contract — courts won't enforce undisclosed fees.
- Written contract required: Arizona requires a signed agreement for any job over $1,000. Reference the contract number on the invoice.
- Right-to-cancel notice: Customers in Arizona get 72-hour cancellation rights on certain home-services contracts. Disclose this in your terms.
2. Auto Mechanic line items + standard terms
Every auto mechanic invoice in Arizona should itemize work clearly. Standard auto mechanics use Net 0 terms with no deposit required.
- Diagnostic fee — billed by flat (~$95 default).
- Labor — billed by hour (~$120 default).
- Parts — billed by itemized.
- Shop supplies — billed by pct.
3. Auto Mechanic licensing in Arizona
State auto repair acts (e.g., California BAR) require written estimate before repairs and itemized invoice with parts/labor breakdown.
4. Send and follow up
Send the invoice the same day work completes. Use software that records open events and offers a one-click online payment so you don't need to chase a check by mail. Arizona customers expect digital payment options today — accepting card and ACH typically reduces days-to-paid by 30–50%.
Average invoice
$540
State
AZ
Net terms
0 days
Deposit
0%
Arizona metro guides
Metro-specific guides include the combined sales-tax rate and local pricing benchmarks.