Secure invoicing software

Sensitive invoice details need controlled records. Everhour connects tracked time, rates, and billing data for cleaner invoicing.

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 with reliable records

Create invoices with controlled records

Secure invoicing software supports the practical job of creating a client-ready invoice without exposing billing data to unnecessary edits or duplicate use. You need seller and buyer details, an invoice number, issue and due dates, line items, tax treatment, total due, payment terms, and remit-to information. For service work, the source record usually starts with approved billable time, project rates, and reimbursable expenses.

The United States does not have a single federal private-sector invoice format or a national VAT/GST invoice regime. For ordinary businesses, invoices mainly support records, contracts, and tax reporting. IRS Publication 583 treats invoices as supporting documents that help show gross receipts. Federal contracts are different because FAR 32.905 defines proper invoice fields for federal procurement.

Invoice fields that prevent disputes

A complete invoice identifies who sold the work, who owes payment, the invoice date, a unique invoice number, the due date, and the payee. Line items should describe the service or product, quantity, unit price, extended price, discounts, tax, and total. A service line can read: "Design review, 6 hours × $125, $750." That line gives the buyer enough detail to approve the charge.

Tax lines need more care than a flat add-on. United States sales and use tax is set by states and local jurisdictions, with no single national rate. Washington, for example, has a 6.5% state portion plus a local portion that varies by city or county and applies based on where the customer receives the goods or services. Service taxability also varies by state and service type.

Security choices that matter

Secure invoicing starts with controlling who can change rates, taxes, bank details, and client records. A polished PDF does not fix a weak source record. The risky mistakes are reused invoice numbers, edited totals after approval, missing tax decisions, stale payment terms, and billable time entered again on a later invoice. A secure workflow keeps the invoice tied to the records that produced it.

United States invoices do not need a VAT/GST registration number because the United States does not use a national VAT or GST system. Sellers that make taxable sales may need state sales-tax registration, such as California's seller's permit for retailers engaged in business in California selling taxable tangible personal property. Remote sellers also need to watch nexus rules; South Dakota v. Wayfair involved more than $100,000 in sales or 200 transactions annually.

Free tool or managed workflow

A one-off invoice tool is enough when you need to create a single invoice, download a PDF, and keep your own backup records. It works well for a simple job with one client, fixed terms, and line items that you can verify manually. It becomes fragile once invoices rely on timesheets, different rates, tax defaults, approvals, and recurring client work.

A managed workflow fits recurring billing because tracked billable time, project rates, expenses, and invoice status stay connected. Everhour can price work by project, member, or custom task rate, preserve dated rate history, and separate internal cost rates from client-facing billable rates. That matters when an invoice needs to reflect approved work without rebuilding the billing record by hand.

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

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Frequently Asked Questions

Does secure invoicing software replace invoice recordkeeping?

No. Secure invoicing software creates and stores invoice records, but the business still needs records that clearly show income and expenses. IRS Publication 583 lists invoices as supporting documents for business transactions and gross receipts, so the invoice should match the contract, timesheet, payment record, and tax treatment behind it.

Which invoice details are most sensitive?

Banking details, remit-to information, taxpayer identifiers, client contact details, rates, discounts, taxes, and payment terms need the tightest control. For federal contract invoices, FAR 32.905 also includes TIN or EFT banking data when agency procedures require them. Private-sector invoices should avoid collecting identifiers that the payer does not need.

Is there a required United States invoice format for private companies?

No single federal private-sector invoice form applies across ordinary United States businesses. Businesses can choose a recordkeeping system suited to the business if it clearly shows income and expenses. Federal procurement is the clearest national exception because FAR rules define proper invoice fields for federal contract payments.

Should secure invoicing software add sales tax automatically?

Automatic sales tax is only useful when the software uses the correct state and local rules for the transaction. United States sales and use tax depends on nexus, product or service taxability, and where the sale is sourced. California generally taxes retail sales of tangible personal property and only some service or labor charges, while Texas lists 16 broad taxable service categories.

Can an invoice be changed after it is sent?

A sent invoice should not be edited casually because the buyer, accounting file, and tax record need a consistent document trail. Issue a corrected invoice or credit memo when the amount, tax, buyer details, or payment terms change after delivery. Reusing the same invoice number for a different bill creates avoidable reconciliation problems.

How does Everhour handle rates for secure invoicing?

Everhour separates internal cost rates from client-facing billable rates, with per-person defaults and per-project overrides. Rate changes can be dated, so older reports keep their original calculations while new invoice amounts use the correct project, member, or custom task rate.

How does Everhour prevent billed time from being reused?

Everhour marks time as invoiced after it appears on an invoice, so the same tracked work does not appear again as uninvoiced time. Teams can select uninvoiced time and expenses, preview the breakdown, and generate the invoice from the approved billing record.

Turn approved work into invoices

Track billable work, preserve dated rates, and turn approved time into invoices. Everhour gives teams a cleaner billing record from rate setup through invoice creation.

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