How to Invoice as a Freelance Developer in Washington, DC

Invoicing guide for freelance developers in Washington: 6% DC sales tax, 2%/mo late-fee cap, plus DC licensing and contractor rules.

Combined sales tax
6%
Late fee cap
2%/mo
Net terms
15 days
Deposit
25%
Create your first invoice freeSee pricing

1. Washington-specific tax handling

  • State sales tax: 6%. Local jurisdictions in Washington may add their own rate — verify with your local tax assessor.
  • Late fees: DC statute D.C. Code §28-3301 caps interest on unpaid invoices at 2% per month.

2. Standard freelance developer line items

  • Development — billed by hour (~$125 default).
  • Project milestone — billed by flat.
  • Third-party services — billed by passthrough.

3. Payment terms that work in Washington

Net 15 is standard for freelance developers. Most freelance developers in competitive markets like Washington require a 25% deposit upfront before scheduling work. Accept card and ACH on the invoice itself — Washington customers expect a one-click payment link in their inbox.

4. Licensing & disclosures

No license required. W-9 / 1099 reporting standard.

Metro
Washington
State
DC
Net terms
15 days
Deposit
25%

Related