How to Invoice as a Physical Therapist in Washington, DC

Invoicing guide for physical therapists 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 physical therapist line items

  • Initial evaluation — billed by flat (~$220 default).
  • Treatment session — billed by session (~$145 default).
  • Insurance billing — billed by flat.
  • Self-pay package — billed by flat.

3. Payment terms that work in Washington

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

4. Licensing & disclosures

State PT license required. Direct-access laws vary by state. HIPAA-compliant invoicing required for insurance billing.

Metro
Washington
State
DC
Net terms
30 days
Deposit
0%

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