Best Invoice App for Plumbers in Washington (WA)
Glo Invoice is the invoicing app plumbing pros across Washington use to quote jobs, get signed approvals, send invoices by text, and accept card payments on the spot — with WA sales tax handled at the line-item level.
6.5% + local
No income tax (7% capital gains)
$200
Estimated plumbing ranges in Washington
Modeled estimate, not a survey of local prices: a national starting range scaled by Washington's approximate statewide cost-of-living index (~117%). Set your own prices based on your costs and market.
| Service | WA range |
|---|---|
| Service call / trip fee | $87.5–$175 |
| Drain cleaning | $115–$350 |
| Water heater install | $935–$2,900 |
What a Washington plumber invoice looks like
A worked example on a typical service call / trip fee job at the WA midpoint ($131), split 40% parts / 60% labor.
| Parts / materials | $53 |
| Labor | $78 |
| Subtotal | $131 |
| Washington state sales tax on parts (6.5%)Local rates apply on top (6.5% + local). | $3 |
| Card processing if paid by card (2.9% + 30¢) | $4 |
| Invoice total | $134 |
Glo Invoice runs this math per line item, so taxable parts and non-taxable labor never get mixed up. Verify your combined rate with the sales tax calculator or the Washington Department of Revenue.
What every Washington plumber invoice needs
License number on every invoice
Parts vs labor split for sales tax
Trip-fee line item
Photo of completed work
Warranty terms
Washington licensing basics for plumbing pros
WA UBI number
Sales tax permit
City business license
Check the WA Secretary of State for trade-specific licensing requirements and renewal deadlines.
Why plumbing businesses in Washington pick Glo Invoice
Made for the trades
Per-line tax for WA sales tax rules, parts vs labor splits, photo attachments, and signed estimates.
Text-first delivery
Washington customers open texts. Glo Invoice sends invoices over SMS — with a one-tap pay link built in.
Get paid same day
Built-in card payments through your connected Stripe or Square account, and Tap to Pay lets you charge on the spot.
Works on bad signal
Built for job sites, garages, and basements — drafts save locally and sync when you're back online.
Plumbers by city in Washington
Plumbers in Washington: common questions
What's the best invoice app for plumbing businesses in Washington?
Glo Invoice is purpose-built for plumbing pros in Washington. It handles license number on every invoice, parts vs labor split for sales tax, trip-fee line item, applies 6.5% + local sales tax to the right line items, and sends invoices over SMS so customers actually pay them.
How much should a plumber charge in Washington?
Washington's average cost-of-living index runs about 117% of the national average. Modeled estimate ranges for WA (not a survey of local prices): Service call / trip fee $87.5–$175; Drain cleaning $115–$350; Water heater install $935–$2,900.
Do plumbing businesses charge sales tax in Washington?
Washington's state rate is 6.5% (6.5% + local). Materials are commonly taxable while labor treatment depends on the type of work, so bill parts and labor as separate lines and confirm your case with the Washington Department of Revenue.
Do I need a license to work as a plumber in Washington?
Most plumbing trades in Washington require a trade-specific state license plus local permits. Common WA requirements include: WA UBI number; Sales tax permit; City business license.
What does it cost to register a plumbing business in WA?
Washington LLC filing runs $200, with ongoing reporting of $60/yr. State income tax is No income tax (7% capital gains). Full breakdown in our Washington business setup guide.
Is there a free trial?
Yes — 14 days free with full access to estimates, invoices, recurring billing, card payments, and expense tracking. No charge until the trial ends.
Setting up shop? Read the guide to starting a business in Washington.