How to Invoice as a Registered Dietician in Washington, DC

Invoicing guide for registered dieticians 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
30 days
Deposit
0%
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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 registered dietician line items

  • Initial assessment — billed by flat (~$220 default).
  • Follow-up session — billed by session (~$95 default).
  • Meal-plan package — billed by flat.
  • Insurance billing — billed by flat.

3. Payment terms that work in Washington

Net 30 is standard for registered dieticians.0 Accept card and ACH on the invoice itself — Washington customers expect a one-click payment link in their inbox.

4. Licensing & disclosures

RD/RDN credential plus state license required in most states. Medical-nutrition-therapy CPT codes for insurance claims.

Metro
Washington
State
DC
Net terms
30 days
Deposit
0%

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