Everhour turns billable time and expenses into invoices, while flexible invoice work still needs correct fields and tax treatment.
Fill in your details, add line items, hit Print when ready.
| Description | Qty | Rate | Tax | Amount |
|---|
The calculator gives you the number — Everhour takes it from there.
One click and you're timing. Start a timer, add an entry, edit the details. This is exactly how it feels in Everhour.
Set a budget, assign rates, and get alerted before you're over.
Measurement
Track your budget through time or costs
Every report you need — configured your way, always up to date.
Tracked hours flow straight into a polished invoice — no copy-paste, no manual math.
A flexible invoice app helps you create a client-ready bill when the work does not fit one rigid template. You may need project lines, task lines, hourly work, billable expenses, discounts, taxes, different payment terms, or a remittance address that changes by client. The goal is a document the buyer can approve, pay, and file without asking for missing details.
For ordinary United States businesses, no single federal private-sector invoice form controls the format. Invoices still matter because the IRS treats them as supporting documents for business transactions and gross receipts. That makes flexibility useful, but it does not remove the need for clear seller and buyer details, an invoice number, dates, line items, totals, terms, and records that match your books.
Flexible does not mean every invoice should be redesigned from scratch. Keep core fields consistent: seller name and address, buyer name and address, invoice date, invoice number, line-item descriptions, quantities, rates, extended amounts, subtotal, applicable tax line, total due, payment terms, and remit-to details. Add optional fields only when they help the client approve or route the bill.
The tax line needs special attention in the United States. The United States has no national VAT or GST invoice regime. Sales and use tax depends on state and local rules, nexus, product or service taxability, and the place of sale. Washington, for example, has a 6.5% state sales-tax portion plus a local portion that varies by city or county and is based on where the customer receives the goods or services.
A flexible app earns its place when different buyers require different invoice structures. One client may want line items grouped by project. Another may need task detail, dates, people, or expenses split out for approval. Federal contract work is a stricter case because FAR 32.905 defines proper invoice fields, including contractor information, invoice date and number, contract or order references, line items, payment terms, remittance details, and required TIN or EFT data when agency procedures require them.
Payment terms also belong in the invoice, not in a separate email thread. For most federal contract invoice payments, FAR 32.904 uses the later of 30 days after the billing office receives a proper invoice or 30 days after government acceptance of the goods or services, with shorter timelines for some food and construction payments. Private invoices follow the policy or contract that applies to the customer.
A free invoice tool is enough when you need a single downloadable invoice, the client has simple requirements, and you can verify the tax, terms, and records yourself. It works for occasional billing, a small project, or a one-time request where the invoice does not need to stay connected to timesheets, project budgets, expenses, or later payment follow-up.
A managed workflow becomes necessary when tracked billable time and project costs feed the invoice. Everhour Billing & Invoicing lets teams select uninvoiced time and expenses, calculate amounts from rates and billable expenses, exclude non-billable work, customize invoice terms, and export invoices to QuickBooks Online, Xero, or FreshBooks while status details sync back to Everhour.
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
Rated in the top time trackers across G2, Capterra, and TrustRadius — with consistent praise for ease of use, integrations, and support.
Seller and buyer details, invoice date, invoice number, line items, subtotal, applicable tax line, total due, payment terms, and remit-to information should stay fixed. Optional fields can change by client, but the invoice still needs enough detail for approval, payment, and recordkeeping.
Yes. Line items can be grouped by project, task, person, date, expense type, or another structure the client accepts. The grouping should match the approval path. A finance team usually needs totals, while a project manager may need enough detail to confirm the work performed.
No. 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 California seller's permit for covered taxable retail sales, but that is different from a VAT or GST number.
Applying one flat tax rule to every customer causes rework. Sales and use tax depends on state and local rules, nexus, product or service taxability, and where the sale is sourced. Services also vary by state, with California taxing some service or labor charges and Texas defining 16 broad taxable service categories.
Yes. An invoice requests payment for goods or services provided under the billing arrangement. A quote or estimate comes before the work as a price offer, and a receipt proves payment received. Mixing those documents creates confusion for approval, payment, and records.
Everhour Billing & Invoicing converts tracked billable time and expenses into client invoices. It calculates invoice amounts from rates, time, and billable expenses, excludes non-billable work, supports client defaults and invoice customization, and exports invoices to QuickBooks Online, Xero, or FreshBooks.
Everhour reporting can show billable, non-billable, invoiced, and uninvoiced amounts alongside project costs, revenue, and profit. Teams can use those reports to see which tracked work has already been billed and which time still needs invoice follow-up.
Connect billable time, rates, expenses, and invoice status in one workflow. Everhour Billing & Invoicing keeps client billing tied to project records and accounting exports.
14-day free trial · No credit card · Cancel anytime
