How to Capture Labor for T&M Billing (Without Disputes)

Capturing time and materials (T&M) labor without disputes comes down to three habits. Log hours daily to the right job, phase, and cost code. Attach proof like notes, photos, and receipts. Get a quick customer sign-off. Pair that with clear rate sheets and steady approvals, and your invoices match the field story. Learn the basics first in time and materials billing.

What does T&M billing include?

T&M invoices bill actual labor hours times agreed rates. You add materials, equipment, and markups on top. The win or loss comes down to documentation and timing.

• Daily time entries tied to job, phase, and cost code
• Itemized materials and equipment with receipts or tickets
• The current rate sheet and markup terms attached
• A customer signature on field tickets or EWAs

What should crews capture in the field every day?

Standardize what crews collect so the office can invoice fast. The same checklist every day keeps invoices clean.

• Employee or crew name, date, job, phase, and cost code
• Start and stop times or total hours, regular and overtime
• Short task notes, with photos for clarity
• Materials used: quantity, vendor, and receipts
• Equipment hours, owned vs. rental
• Customer initials or a signed Extra Work Authorization

How do approvals and sign-off work?

Get buy-in in the field, then validate before payroll and invoicing. The signature is what ends most arguments.

• Present a daily field ticket for signature, or send for e-sign the same day
• The foreman reviews each week, and the PM resolves exceptions
• Lock the period and keep an audit trail of edits

How do you set rate sheets, markups, and taxes?

Remove surprises by attaching the pricing rules to every T&M packet. Clear rules up front prevent short-pays later.

• Include the current labor and equipment rate sheet with effective dates
• Call out material markups, fees, and tax handling
• Define overtime rules and minimum call-out hours

How do you turn a field ticket into an invoice?

T&M Invoice

Time & materials · billed from actuals

Demo Builders

Shops at Parmer Lane

	Labor — journeyman, 32 hrs @ $95	$3,040
	Labor — apprentice, 24 hrs @ $55	$1,320
	Materials — pipe, fittings, valves	$1,180
	Equipment — trencher rental, 2 days	$640
	Markup on materials & equipment (15%)	$273

Invoice total $6,453

Built from logged field hours and captured receipts — every line defensible.

Turn approved entries into an invoice that mirrors the field record. The closer the match, the faster you get paid.

• Group lines by day or cost code and reference ticket numbers
• Attach photos, signed tickets, and EWA or CO references
• Email the packet and offer online payment options

When should you bill T&M (and how fast)?

Bill T&M when scope is open or likely to change. Repairs, emergencies, and extra work all fit. For defined scope, a fixed price or progress billing may serve you better.

When you do bill T&M, send the invoice within a few days of the work. Fast billing keeps details fresh and speeds approval. It also keeps cash moving while the job runs.

• Scope is open or changing
• The work is extra or out of contract
• You have signed backup ready
• The client expects to pay for actual time

How does Werx help with T&M labor capture?

Contractor software like Werx ties field capture, approvals, and invoicing together. Then it syncs to accounting for clean books.

• Log labor in the Werx Field App by job, phase, and cost code with notes and photos
• Collect on-site signatures with Extra Work Authorizations
• Convert approved entries to T&M invoices in minutes
• Sync invoices and payments to QuickBooks Online

Key takeaways

• Capture labor daily with codes, notes, photos, and signatures
• Attach rate sheets, receipts, and EWAs to every invoice
• Bill within a few days of the work to reduce disputes
• Werx turns field records into T&M invoices and syncs to QuickBooks