Everhour keeps billable consulting time organized, so marketing invoices can match projects, retainers, and client-approved work.
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Marketing consultants use invoices to bill for campaign strategy, audits, content planning, search optimization, paid media management, analytics reviews, and advisory time. The invoice should make the billing model obvious: hourly, daily, project-based, retainer, or value-based. A client should see the billing period, the deliverable, the rate or fee, and the amount due without asking for a second breakdown.
For hourly work, the basic charge is tracked hours multiplied by the hourly rate. For a fixed-scope project, the invoice charges the agreed flat fee for named deliverables. For a monthly retainer, the invoice usually shows the retainer period, scope summary, recurring fee, and any approved out-of-scope work. Keep deposits, reimbursable expenses, late-fee terms, and payment timing aligned with the proposal, SOW, MSA, or consulting agreement.
A strong marketing consulting invoice uses service lines that mirror the work the client bought. Instead of one vague line for "marketing services," list practical categories such as brand positioning workshop, email sequence strategy, Google Ads account audit, campaign reporting, or monthly advisory retainer. That structure helps the client route approval to the right budget owner and compare the invoice against the approved scope.
A simple hourly line can read: "Paid search optimization, April 1 to April 15, 12 hours at $150 per hour." A project invoice can read: "Q2 demand generation strategy, milestone 2 of 3, fixed fee." Retainer invoices should name the month or billing period. Expense lines should separate approved direct costs from consulting fees and include the documentation required by the agreement.
Marketing consultants commonly request a 50% to 100% upfront payment before work starts, especially for new engagements. Payment due within 7 days is also common in consulting, but the actual deadline is contractual. Put the due date, accepted payment methods, late-fee language, and any deposit already paid directly on the invoice so the client can approve the balance due without re-reading the proposal.
United States private-sector invoices do not follow one prescribed federal invoice form, and the United States does not use a national VAT or GST invoice regime. Sales and use tax depends on state and local rules, nexus, the place of sale, and the service being billed. Service taxability varies by state and service type, so a marketing consultant should apply a tax line only when the applicable jurisdiction and service rules require it.
A free invoice tool is enough for a one-off marketing project when you already know the approved scope, fee, billing address, payment terms, and tax treatment. It also works for a simple retainer invoice when the monthly amount does not change and the client does not need detailed time support. The finished document should still match the agreement and show every charge clearly.
A managed workflow becomes useful when billable and non-billable work must stay separate across clients, campaigns, and consultants. Everhour supports 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. That structure helps agencies and solo consultants turn approved marketing work into invoice-ready numbers without rebuilding the month 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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Use the billing model from the signed proposal, SOW, or consulting agreement. Hourly invoices rely on tracked time and a rate. Project invoices charge a flat fee for defined deliverables. Retainers bill a set monthly amount for ongoing access or support. Value-based engagements need especially clear scope, outcome, and fee language because the price is not tied directly to hours.
Use the structure the client expects to approve. Campaign-based lines work well for ongoing paid media or launch work. Deliverable lines fit audits, strategy decks, messaging frameworks, and implementation plans. Hourly lines fit advisory work, optimization, and support tasks. A mixed invoice can include a monthly retainer plus approved hourly or expense lines.
A United States marketing consultant does not add a federal VAT or GST because the United States does not have a national VAT or GST invoice regime. Any tax line depends on state and local sales and use tax rules, the seller's obligations, the client location, nexus, and the specific marketing service billed.
Vague service descriptions slow approval because the client cannot connect the charge to an approved budget, campaign, or deliverable. Replace "marketing consulting" with the billing period, client project, service category, and rate or fee basis. For retainers, show the covered month and scope. For expenses, attach or reference the documentation required by the agreement.
A marketing consultant can charge reimbursable expenses when the proposal or contract allows them. The agreement should define which direct or out-of-pocket costs qualify, whether the client must approve them first, and which receipts or backup documents are required. List expenses separately from consulting fees so the client can review them without confusing them with service revenue.
Everhour lets admins set project billing status, mark specific tasks as non-billable, use custom task rates, and set member-rate exceptions. Reports can show billable time, non-billable time, billable amount, and cost by member or task, so marketing consultants can invoice approved client work without charging internal admin time.
Track approved marketing time by client, project, task, and rate. Everhour keeps billable and non-billable work separate so invoice totals reflect chargeable consulting work.
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