Accurate invoice app

Accurate billing starts with complete invoice data. Everhour connects tracked work to invoices without rebuilding time 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 survive review

Create a billable record

Use this page to prepare an invoice that states who sold the work, who bought it, what was delivered, the amount due, and the payment terms. An accurate invoice is a billing document, not a receipt, estimate, or quote. A receipt proves payment received. An estimate or quote gives a price before the work starts.

Private-sector United States invoices do not follow one prescribed federal format. For federal tax records, invoices act as supporting documents that help show gross receipts, income, and expenses. The practical goal is a complete record: seller and buyer details, invoice number, issue date, due date, line items, subtotal, tax where applicable, total, payment terms, and remit-to information.

Complete the invoice fields

Start with a sequential invoice number, the issue date, the due date, and full seller and buyer names and addresses. Add each line item with a plain description, quantity, rate, and extended amount. A service invoice can use hours as the quantity and a billing rate as the price. A product invoice can use units, packages, or another count that matches the sale.

Finish the commercial details before sending. Add the subtotal, discounts if used, the tax line if tax applies, the final total, accepted payment method, and remit-to instructions. Keep payment terms specific, such as due on receipt, net 15, or net 30. Federal contract invoices are stricter under FAR 32.905, with required contract references, payee details, contacts, and TIN or EFT data when agency procedures require them.

Get tax details right

An accurate invoice app should leave room for jurisdiction-specific tax treatment instead of forcing one national rule. The United States has state and local sales and use tax, not a national VAT or GST invoice regime. Sales-tax rates depend on the applicable state and local rate. Washington, for example, has a 6.5% state portion plus local tax based on where the customer receives the goods or services.

Service taxability also changes 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. Remote sellers also need to watch nexus rules. South Dakota v. Wayfair upheld a law tied to more than $100,000 in sales or 200 transactions, and other states set their own thresholds.

Use a system for repeats

A one-off invoice app is enough when you need a clean PDF for a single sale, a small project, or a client that only needs a basic billing record. It works best when you already know the correct client details, tax treatment, payment terms, and line-item amounts. Save the final PDF and the source records that support the billed amount.

A managed workflow matters when billable time, project costs, approvals, and client reporting feed the invoice. Everhour Billing & Invoicing turns uninvoiced billable time and expenses into invoices, excludes non-billable work, applies rates, and marks billed time as invoiced so it does not appear again on a later invoice.

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 an invoice accurate?

An accurate invoice identifies the seller and buyer, uses a unique invoice number, includes issue and due dates, describes each line item, shows quantity, rate, subtotal, tax where applicable, total due, payment terms, and remit-to details. Federal contract invoices need additional FAR 32.905 fields when that procurement rule applies.

Can one app apply the same tax rule to every United States invoice?

No. The United States does not have a national VAT or GST invoice regime. Sales and use tax is administered by states and local jurisdictions. The correct tax line depends on nexus, the buyer's location, the product or service sold, and the applicable state and local rules.

Should an accurate invoice include a VAT number field?

A United States invoice does not need a VAT or GST registration number because the country does not use a national VAT or GST invoice system. A seller that makes taxable sales may need a state seller permit or sales-tax account where required, such as California's seller's permit for taxable retail sales.

Does an invoice number have to be sequential?

Sequential numbering is a practical accuracy control, even though ordinary private-sector United States invoices do not follow one federal invoice-format statute. A consistent sequence helps you spot duplicates, missing invoices, changed drafts, and payment mismatches. Federal contract invoices must include an invoice date and number under FAR 32.905.

Is an invoice still accurate if the client pays in cash?

Yes, if the invoice records the sale correctly and the payment record shows the cash received. United States coins and currency are legal tender for debts, public charges, taxes, and dues, but no federal statute requires private businesses to accept cash for goods or services unless state law says otherwise.

How does Everhour turn billable work into accurate invoices?

Everhour Billing & Invoicing lets users select uninvoiced billable time and expenses, preview the breakdown, and generate an invoice from rates, tracked time, and billable expenses. Non-billable tasks stay out of the invoice total, and invoiced time is marked so it is not billed twice.

How does Everhour reporting support invoice review?

Everhour Reporting gives admins customizable reports with 45+ columns, grouping, filters, exports, and invoice-related data such as billable, non-billable, invoiced, and uninvoiced amounts. Teams can review the time and cost detail behind an invoice before sending it to a client.

Turn tracked work into invoices

Use Everhour Billing & Invoicing when one-off PDFs stop covering the workflow. Convert approved billable time and expenses into invoices, protect billed entries from reuse, and keep client billing tied to project records.

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