A plumbing business paperwork guide

Ask your state licensing board and the city or county building/plumbing department serving the job address what credentials and project approvals apply. The SBA notes that a business’s location affects the regulations and licenses or permits it may need. When a license, permit, or inspection applies, keep the issued paperwork and final sign-off with that job.

• Current state, county, or city plumbing and contractor credentials that apply to your work
• Permit applications and issued permits for jobs that require them
• Approved scope or plans, inspection records, and final approvals when issued

Sources: U.S. Small Business Administration: Launch your business: licenses and permits

As a practical recordkeeping habit, collect the customer work order or contract, agreed scope and changes, applicable permit and inspection documents, invoices, payment records, and supplier receipts. The IRS says your system should clearly show business income and expenses, and that supporting records and retention periods depend on the transaction or tax matter.

• Work order, signed contract, scope changes, and customer approvals
• Invoices, proof of payment, purchase receipts, and payroll records where relevant
• If you have employees, IRS guidance says to keep employment-tax records for at least four years

Sources: Internal Revenue Service: Recordkeeping for small businesses · Internal Revenue Service: Employment tax recordkeeping

Plumbing work that disturbs painted surfaces may fall under EPA’s Renovation, Repair and Painting (RRP) Rule when it is in covered housing or a child-occupied facility built before 1978 and otherwise meets the rule. For covered work, EPA describes firm certification, worker training, pre-renovation education, lead-safe practices, and job records that generally must be retained for three years after completion. Confirm coverage and any state-program rules before work starts.

• Confirm whether the property and work are covered before disturbing paint
• For covered jobs, organize required training, certification, disclosures, and job documentation

Sources: U.S. Environmental Protection Agency: Renovation, Repair and Painting Program: Work Practices · U.S. Environmental Protection Agency: Frequent questions about RRP recordkeeping and reporting

Use a consistent job identifier and file records by business, job address, and date. Keep a simple index of the agency contacted, permit or license number, renewal date, and who confirmed the requirement. Set reminders for renewals, back up digital files, and apply the retention period that belongs to each record type rather than one blanket schedule.

• Separate folders for company credentials and individual jobs
• A calendar for expirations, renewals, and known reporting dates
• A note of the official agency source and date you last checked it

Sources: Internal Revenue Service: Recordkeeping for small businesses · U.S. Environmental Protection Agency: Frequent questions about RRP recordkeeping and reporting