How to Invoice as a Plumber in Pennsylvania

How to invoice as a plumber in Pennsylvania: PA sales tax 6.00% (services usually exempt), late fees capped at 1.5%/mo under 41 Pa. Cons. Stat. §201, written contracts required over $5,000. Step-by-step guide with a free template.

State sales tax
6%
Late fee cap
1.5%/mo
Net terms
14 days
Deposit
30%
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1. Pennsylvania-specific invoice requirements

  • Sales tax line: 6.00% state rate. Most services rendered in Pennsylvania are exempt from sales tax — but materials, parts, and tangible goods are not. State 6%; Allegheny +1%, Philadelphia +2%. Many services exempt.
  • Late-fee cap: Pennsylvania statute 41 Pa. Cons. Stat. §201 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.
  • Written contract required: Pennsylvania requires a signed agreement for any job over $5,000. Reference the contract number on the invoice.
  • Right-to-cancel notice: Customers in Pennsylvania get 72-hour cancellation rights on certain home-services contracts. Disclose this in your terms.

2. Plumber line items + standard terms

Every plumber invoice in Pennsylvania should itemize work clearly. Standard plumbers use Net 14 terms with a 30% deposit required upfront.

  • Service call fee — billed by flat (~$95 default).
  • Labor — billed by hour (~$110 default).
  • Materials — billed by itemized.

3. Plumber licensing in Pennsylvania

State-licensed in most states. Master plumber license typically required for self-employment.

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

Average invoice
$485
State
PA
Net terms
14 days
Deposit
30%

Pennsylvania metro guides

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

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