How to Invoice as a Mobile App Developer in Colorado

How to invoice as a mobile app developer in Colorado: CO sales tax 2.90% (services usually exempt), late fees capped at 1.5%/mo under Colo. Rev. Stat. §5-12-101. Step-by-step guide with a free template.

State sales tax
2.9%
Late fee cap
1.5%/mo
Net terms
30 days
Deposit
33%
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1. Colorado-specific invoice requirements

  • Sales tax line: 2.90% state rate. Most services rendered in Colorado are exempt from sales tax — but materials, parts, and tangible goods are not. State 2.9%; home-rule cities add their own (combined commonly 7-10%).
  • Late-fee cap: Colorado statute Colo. Rev. Stat. §5-12-101 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.
  • Right-to-cancel notice: Customers in Colorado get 72-hour cancellation rights on certain home-services contracts. Disclose this in your terms.

2. Mobile App Developer line items + standard terms

Every mobile app developer invoice in Colorado should itemize work clearly. Standard mobile app developers use Net 30 terms with a 33% deposit required upfront.

  • Sprint / milestone — billed by flat.
  • Hourly — billed by hour (~$165 default).
  • App Store submission — billed by flat.
  • Maintenance retainer — billed by flat.

3. Mobile App Developer licensing in Colorado

No license required. App Store and Play Store policies must be honored.

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. Colorado customers expect digital payment options today — accepting card and ACH typically reduces days-to-paid by 30–50%.

Average invoice
$8,500
State
CO
Net terms
30 days
Deposit
33%

Colorado metro guides

Metro-specific guides include the combined sales-tax rate and local pricing benchmarks.

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