Invoice app for billable projects

Everhour connects tracked project time to billing reports, giving invoice work a cleaner source than scattered timesheets.

Build your invoice

Fill in your details, add line items, hit Print when ready.

Invoice #
Date
Due date
From
To
DescriptionQtyRateTaxAmount
Subtotal
Tax
Total$ 0.00

Everhour does it all — track, budget, report & invoice

The calculator gives you the number — Everhour takes it from there.

Go ahead — start tracking!

One click and you're timing. Start a timer, add an entry, edit the details. This is exactly how it feels in Everhour.

  • One-click timer — browser, desktop & mobile
  • Works inside Asana, ClickUp, Linear, GitHub & more
  • Simple setup, no learning curve
Works with your favorite tool:
Everhour — Time Tracking
Time Entries
01:24:00
00:31:00
01:07:00

No more budget surprises

Set a budget, assign rates, and get alerted before you're over.

  • Real-time cost tracking
  • Set different rates per person or project
  • Alerts before you hit the budget limit
Everhour — Budgeting
Acme Web Project
1
50% of budget used
$2,500.00of $5,000.00
$2,500.00 remaining
75%
Actual costRemaining cost

Measurement

Track your budget through time or costs

Simple, customizable reports

Every report you need — configured your way, always up to date.

  • See who does what in real time
  • Configure any report
  • Scheduled email reports
Everhour — Reports

Your invoice is ready!

Tracked hours flow straight into a polished invoice — no copy-paste, no manual math.

  • Billable hours straight into the invoice
  • Configure invoice templates
  • Copy invoices to QuickBooks or Xero
  • Invoicing dashboard with status
Everhour — Invoices
Your Company LLChello@yourcompany.com
INVOICE
Invoice #1042
Group by:
DescriptionHoursRateAmount
Website Redesign14h$150/h$2,100.00
Brand Guidelines7h$150/h$1,050.00
Marketing Strategy3.5h$150/h$525.00
Total Due$3,675.00
Try Everhour for real yourself

Project invoices that match billable work

Build the client-ready invoice

You came to create an invoice for project work that has already been scoped, tracked, or delivered. The finished document should show who is billing, who owes payment, the invoice number, issue date, due date, line items, subtotal, tax line, total, payment terms, and remit-to details. For United States private-sector invoices, no single federal format applies, so clarity and contract alignment carry the work.

Keep the invoice distinct from nearby documents. An estimate or quote gives a pre-work price offer. A receipt proves payment received. An invoice requests payment for delivered work or agreed billing milestones. For billable projects, the invoice should make the commercial story visible: project name, work period, billable activities, rates, expenses, taxes where applicable, and the amount now due.

Choose project billing lines

Billable project invoices work best when each line helps the client approve the charge. A time-and-materials invoice can group work by project phase, task, person, or date. A fixed-fee invoice can show the agreed milestone, contract reference, and payment schedule. Expenses need their own description, amount, and backup policy when the client requires receipts or approval.

A clear line item uses a plain description, quantity, rate, and extended price. For example, "Design implementation, March 1-15, 24 hours x $125" gives the client enough detail to connect the charge to project activity. Avoid mixing billable and non-billable work in one line. If a task was included for internal tracking only, exclude it from the client-facing total.

Handle tax and payment details

United States invoices do not use a national VAT or GST invoice regime. Sales and use tax obligations come from state and local rules, and the result depends on nexus, product or service taxability, and where the sale is sourced. A billable project invoice should not add a flat national tax line. Use the tax treatment that applies to the buyer, location, and service or product sold.

Service taxability varies by state and service type. California generally taxes retail sales of tangible personal property and only some service or labor charges, while Texas defines 16 broad categories of taxable services. If the project is for a federal contract, FAR rules define proper invoice fields, and most federal contract invoice payments use a 30-day timing standard after receipt of a proper invoice or acceptance.

Tool or managed billing workflow

A one-off invoice app is enough when you need a clean PDF for a single project, the hours are already approved, and the tax treatment is already known. It works for straightforward freelance work, a fixed milestone, or a small client job where the invoice will not need future reporting, approval history, or accounting reconciliation.

A managed workflow becomes necessary when billable time changes daily, several people work on the same project, or managers need a reliable view of invoiced and uninvoiced work. Everhour Reporting can group and filter time, budgets, costs, billable amounts, invoice status, and project data before billing. That creates a stronger handoff from project work to invoice review.

This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.

High Performer

G2

Summer 2026

Best Ease Of Use

Capterra

Summer 2026

Loved by teams. Proven everywhere.

Rated in the top time trackers across G2, Capterra, and TrustRadius — with consistent praise for ease of use, integrations, and support.

10K+Teams worldwide
90K+Installs Everhour extension
196M+Tasks completed
4M+Projects tracked

Frequently Asked Questions

Which fields make a project invoice complete?

A complete project invoice includes seller and buyer details, invoice number, issue date, due date, project or contract reference, line items, quantities, rates, subtotal, tax line when applicable, total due, payment terms, and remit-to details. United States private-sector invoices do not follow one federal template, but invoices still serve as supporting documents for business records.

Should billable hours and expenses appear on separate lines?

Separate lines make review easier when the client approves labor and reimbursable expenses under different rules. Labor lines should show the work description, period, quantity, rate, and amount. Expense lines should identify the cost and any agreed markup or reimbursement treatment. Combining them hides the rate basis and creates avoidable payment questions.

Does every United States project invoice need sales tax?

No. The United States has state and local sales and use tax, not a national VAT or GST invoice regime. Tax depends on the state and local rate, nexus, product or service taxability, and the place of sale. Service rules differ by state, so a project invoice should use the applicable jurisdictional treatment instead of a generic tax percentage.

Can one invoice include fixed-fee and hourly project work?

Yes, one invoice can include fixed-fee and hourly work when the contract allows both billing methods and the lines stay clear. Put the milestone or fixed deliverable on one line and hourly work on separate lines with quantity and rate. Mixed billing becomes confusing when the invoice does not show which charges are capped, reimbursable, or time-based.

Which mistake delays payment on billable project invoices?

The most common delay comes from line items that do not match the client's approval process. A client may need a project code, purchase order, work period, named task, or contract reference before accounts payable can release payment. Add those details before sending the invoice, especially when several projects share the same buyer or billing contact.

How does Everhour Reporting support project invoicing?

Everhour Reporting lets teams build reports with 45+ columns, filters, grouping, date ranges, exports, and invoice-related fields such as billable time, non-billable time, costs, revenue, profit, and invoice status. Managers can review uninvoiced work by project, client, member, or task before turning approved billing data into an invoice.

Turn project work into invoices

Use Everhour Reporting to review billable project data, filter uninvoiced work, and hand clean billing totals into invoice workflows with less manual reconciliation.

14-day free trial  ·  No credit card  ·  Cancel anytime

Or