Reliable invoice app

Everhour connects time, reporting, and invoicing workflows, while reliable invoices still depend on complete fields and correct billing records.

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

Building invoices that hold up

Create invoices clients can process

You came to make an invoice that a client can act on, not a draft that raises basic questions. The finished document should identify the seller and buyer, show a unique invoice number, list issue and due dates, describe the work or goods, and state the amount due with payment instructions.

For United States private-sector businesses, no single federal invoice-format statute controls ordinary invoice layout. The IRS treats invoices as supporting documents for business transactions and gross receipts, so the invoice should make income, expenses, and payment expectations clear enough for bookkeeping and contract records.

Include the fields that matter

A complete invoice starts with seller and buyer details, a sequential invoice number, issue date, due date, line items, subtotal, tax line, total, payment terms, and remit-to information. Line items should name the service or product, quantity, rate, and extended amount, such as consulting services, 10 hours, $125 per hour, $1,250.

An invoice is different from a receipt, estimate, or quote. An invoice requests payment for work delivered or goods sold. A receipt proves payment received. An estimate or quote gives a pre-work price, with a quote usually carrying firmer commercial expectations than an estimate.

Make reliability visible

Reliability comes from details that prevent disputes: unique numbering, clear buyer identity, accurate dates, precise line items, and payment terms that match the agreement. A vague line such as professional services gives the buyer less to approve than a line tied to the project, date range, quantity, and agreed rate.

Sales tax also needs a real decision, not a default percentage. The United States has no national VAT or GST invoice regime. State and local sales and use tax rules govern collection where applicable, and service taxability varies by state and service type. Washington, for example, has a 6.5% state sales tax portion plus local rates based on where the customer receives the goods or services.

Use a tool or system

A one-off invoice tool works for a single clean bill: one client, known terms, simple line items, and no need to connect the invoice to time records later. It is enough when you need a downloadable invoice and already know the taxable treatment, rates, and payment details.

A managed workflow matters once billable time, project costs, approvals, and follow-up need a durable record. Everhour can connect tracked billable time and expenses to invoices, while reporting keeps billable, non-billable, invoiced, and uninvoiced amounts visible before the invoice leaves the business.

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.

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

Frequently Asked Questions

What details make an invoice reliable?

A reliable invoice identifies both parties, uses a unique invoice number, shows issue and due dates, lists each line item with quantity and rate, states subtotal, tax, total, payment terms, and remit-to details. The buyer should be able to approve the charge without asking who billed it, why it was billed, or how to pay it.

Is a United States invoice required to follow a federal format?

Ordinary United States private-sector invoices do not follow one prescribed federal invoice form. Businesses can use any recordkeeping system suited to the business if it clearly shows income and expenses. Federal contract invoices are the main national exception, with FAR rules defining proper invoice fields for federal procurement.

How should sales tax be handled on a United States invoice?

Sales tax treatment depends on state and local rules, nexus, the product or service, and the place of sale. The United States does not use a national VAT or GST invoice regime. Sellers making taxable sales may need state-level registration, such as a seller permit or sales-tax account where required.

Should an invoice include a TIN or EIN?

Private-sector invoices do not universally require a TIN or EIN. Businesses usually provide a Taxpayer Identification Number through Form W-9 when a payer needs it for IRS information reporting. Federal contract invoices include a TIN only when agency procedures require it.

Which payment terms reduce disputes?

Useful payment terms state the due date, accepted payment methods, remit-to address or account instructions, late-fee policy if the contract allows it, and any purchase order or contract reference. For most federal contract invoice payments, FAR 32.904 uses a 30-day timing standard tied to receipt of a proper invoice or government acceptance.

How does Everhour Reporting support invoice reliability?

Everhour Reporting lets teams build reports with 45+ columns, filters, grouping, and exports, so billable time, non-billable time, invoice status, costs, revenue, and profit can be reviewed before billing. Scheduled email reports keep the same invoice backup moving to the right people.

How does Everhour turn tracked billable work into invoices?

Everhour Billing & Invoicing converts uninvoiced billable time and expenses into client invoices, calculates amounts from rates and billable expenses, and excludes non-billable work. Invoice data can be grouped by project, task, person, date, or another available breakdown.

Build invoices from better records

Use Everhour Reporting to review billable work, invoice status, costs, and revenue before billing. Everhour gives teams cleaner invoice backup and fewer manual checks before sending.

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