Invoice app for project management

Everhour connects project time to billing, while invoice accuracy still depends on clear client, tax, and payment details.

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-based invoicing basics

Create invoices from project work

A project-based invoice turns approved work into a client-facing request for payment. The practical job is to pull client details, project scope, billable time, expenses, tax treatment, payment terms, and remit-to details into one document that a client can review without asking for the project history again.

For ordinary United States private-sector businesses, no single federal invoice form controls the layout. Invoices still matter because they support business records and show amounts and sources of gross receipts. A strong invoice app helps you keep the commercial record clear, especially when several tasks, people, or billing rates feed one client total.

Match lines to client approval

A project invoice needs enough structure for the client to connect each charge to approved work. Include seller and buyer details, a sequential invoice number, issue date, due date, line items, quantity, rate, subtotal, tax line when applicable, total due, payment terms, and remit-to information.

Project management work often creates too much detail for a readable invoice. A useful invoice line can group work by project phase, task group, person, or date range. For example, "Website implementation, March 1-15, 24 hours at $125 per hour" gives the client a clear review path without exposing every internal task comment.

Keep tax and document type straight

A United States invoice is not governed by a national VAT or GST invoice regime. Sales and use tax obligations come from state and local rules, and the correct treatment depends on nexus, the product or service, and where the sale is sourced. Washington, for example, has a 6.5% state sales tax portion plus a local portion that varies by city or county.

A project invoice is also separate from a receipt, estimate, or quote. The invoice requests payment for delivered work or billable charges. A receipt proves payment received. An estimate gives a pre-work price expectation, while a quote is a firmer pre-work offer. Mixing those labels creates payment and recordkeeping confusion.

Use tools or managed billing

A one-off invoice app is enough when you need a single downloadable invoice, the project has a simple rate structure, and you can verify every line before sending. It also works for occasional clients, small fixed-fee projects, or a clean time-and-materials invoice with no recurring approval workflow.

A managed workflow becomes the better fit when tracked time, project costs, billable status, approvals, and reports need to feed invoices repeatedly. Everhour supports billable and non-billable time through project billing status, task-level non-billable controls, custom task rates, member-rate exceptions, and admin reports for billable time, non-billable time, billable amount, and cost.

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

What should a project-based invoice include?

A project-based invoice should include seller and buyer details, invoice number, issue date, due date, project or order reference, line items, quantities, rates, subtotal, tax line when applicable, total due, payment terms, and remit-to details. The line items should match how the client approved the work.

Should project tasks become separate invoice lines?

Project tasks should become separate invoice lines only when that level of detail helps client approval. Group routine task entries by phase, deliverable, person, or date range when the client expects a summary. Keep separate lines for different rates, taxable treatment, fixed fees, discounts, or reimbursable expenses.

Does a United States project invoice require VAT or GST details?

A United States project invoice does not require a VAT or GST registration number because the United States does not use a national VAT or GST invoice regime. Sellers that make taxable sales may need state-level sales-tax registration, such as a seller's permit where state law requires one.

Can sales tax be copied across every project invoice?

Sales tax should not be copied across every project invoice as a flat default. State and local rules control the rate and taxability. 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.

Is an invoice the same as a receipt, estimate, or quote?

An invoice requests payment for work, products, or services billed to the buyer. A receipt proves that payment was received. An estimate gives a pre-work price expectation, and a quote presents a firmer pre-work price offer. Use the correct label so the client knows whether action or proof is being provided.

How does Everhour separate billable and non-billable project time?

Everhour lets admins set billing status at the project level, mark specific tasks as non-billable, set custom task rates, and use member-rate exceptions. Admin reports can show billable time, non-billable time, billable amount, and cost by member or task.

How does Everhour turn project work into invoices?

Everhour Billing & Invoicing lets users select uninvoiced time and expenses, preview the breakdown, and generate an invoice from billable project work. Invoice data can be grouped by project, task, person, date, or another available breakdown before export to QuickBooks Online, Xero, or FreshBooks.

Turn project time into invoices

Track billable project work before invoice day. Everhour keeps billable status, rates, task exceptions, and reports connected, so client invoices reflect approved project work and accurate billing totals.

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

Or