How to Invoice as a Registered Dietician in St. Louis, MO

Invoicing guide for registered dieticians in St. Louis: 4.225% MO sales tax, 0.75%/mo late-fee cap, plus MO licensing and contractor rules.

Combined sales tax
4.225%
Late fee cap
0.75%/mo
Net terms
30 days
Deposit
0%

1. St. Louis-specific tax handling

  • State sales tax: 4.225%. Local jurisdictions in St. Louis may add their own rate — verify with your local tax assessor.
  • Late fees: MO statute Mo. Rev. Stat. §408.020 caps interest on unpaid invoices at 1.5% 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 St. Louis

Net 30 is standard for registered dieticians.0 Accept card and ACH on the invoice itself — St. Louis 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
St. Louis
State
MO
Net terms
30 days
Deposit
0%

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