Grant writers are freelancers and small consultancies who research funding opportunities and write proposals for nonprofits, schools, municipalities, tribes, and small businesses. Invoices usually cover discovery calls, prospect research, narrative drafting, budget development, letters of inquiry, and reporting or other post-award work.
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Invoice_1001_Client_2026-10-14.pdf
Most grant writers charge a flat project fee per proposal, an hourly rate for research, editing, and strategy work, or a monthly retainer for ongoing development support. Fees are based on the work required, not the grant outcome. Many professional codes, including the Association of Fundraising Professionals' ethics standards, prohibit commission or percentage-of-award compensation, and many government funders do not allow grant-writing costs to be paid as a percentage of an award. Flat project fees typically scale with the complexity of the application: a short letter of inquiry costs far less than a federal application with a 30-page narrative and attachments. Retainers often cover a set number of hours or deliverables per month. Rush work, extra revision rounds beyond the agreed number, and work on funder portals are often billed separately.
| Service | Priced | Typical range |
|---|---|---|
| Hourly grant writing, research, and editing | per hour | $50-150 |
| Grant prospect research report | flat fee | $300-1,500 |
| Letter of inquiry or short foundation application | flat fee | $300-1,000 |
| Full foundation proposal (5-15 pages with budget) | flat fee | $1,000-3,500 |
| Federal or state grant application (e.g., SAMHSA, HUD, NEA) | flat fee | $3,000-10,000 |
| Monthly development retainer | per month | $750-3,000 |
| Grant report or final evaluation narrative | flat fee | $300-1,200 |
| Grant strategy session or calendar planning | per session | $150-400 |
Typical US ranges. Rates vary by region, experience, and job size.
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Discovery call and funder guideline review - Community Health Foundation request | 2 hours | $90.00 | $180.00 |
| Prospect research: 12 regional foundations, summary with deadlines and fit notes | 1 flat fee | $600.00 | $600.00 |
| Full foundation proposal: narrative, logic model, and budget narrative (Youth Literacy Program) | 1 flat fee | $2,200.00 | $2,200.00 |
| Additional revision round requested after staff review (beyond 2 included) | 3 hours | $90.00 | $270.00 |
| Online portal entry and attachment upload | 1.5 hours | $90.00 | $135.00 |
| Total | $3,385.00 | ||
Notes: Payment due within 15 days of invoice date. Fee covers writing services only and is not contingent on award. Final submission confirmation will be forwarded upon submission. Late balances accrue 1.5% per month.
Ties the charge to a specific submission so the client's finance team can code it to the right project or budget.
Shows whether you are billing for research, a draft, final submission, or reporting, which matters for milestone-based fees.
Makes clear you are not paid on commission, which many funders and ethics codes prohibit, and helps if the client wants to charge the cost to a grant.
Prevents disputes when staff or board members request additional rewrites.
Clients, especially public agencies and foundations, may require time detail to approve payment.
Nonprofits and government agencies often will not process payment without it.
US clients paying you over the IRS reporting threshold typically need a W-9 on file to issue a 1099.
Most grant writers collect a deposit of 30-50% before starting a proposal, with the balance due on delivery of the final draft or on submission. Retainers are normally billed at the start of each month. Net 15 or net 30 is common, though nonprofits and municipalities can be slow, so confirm their approval process and board meeting schedule up front. Some writers add a late fee of 1-1.5% per month, stated in the contract. Payment is usually by check, ACH, or card. Larger federal applications are often split into milestones such as research, first draft, and submission.
Contingent or percentage fees violate widely followed fundraising ethics standards and are disallowed by many funders. Quote a fixed fee or hourly rate and state in your agreement that payment does not depend on funding.
For a federal application that takes six weeks, invoice at kickoff, first draft, and submission. This keeps cash flowing and gives the client natural checkpoints before you do more work.
Specify two rounds of consolidated edits. Extra rounds are billed hourly. Without this, a committee with five reviewers can double your time on a flat-fee project.
If the client misses an agreed date for data, financials, or letters of support, note that the deadline risk is theirs and charge for rework or rush time if you have to compress the schedule.
Post-award reporting, budget revisions, and grant management are different scopes. Invoice them separately so clients can charge them to the grant if the funder allows it.
You should not. Professional fundraising ethics codes prohibit percentage-based compensation, and many funders, including federal agencies, do not allow it. Use a flat fee, hourly rate, or retainer instead.
Yes. You are paid for the work of researching, writing, and submitting, not for the result. Put this in your contract and on each invoice so expectations are clear.
Sometimes. Some funders allow proposal writing costs in the budget, but many do not allow pre-award costs. The client should check the guidelines. Your invoice should show the dates and work performed clearly in case it is allowed.
As an independent contractor, you usually give your client a W-9 and they issue you a 1099-NEC if they pay you above the IRS threshold in a year. Check current thresholds and your state rules.
State what the retainer covers, such as a set number of hours or deliverables. Invoice the same amount monthly and track hours. Note any overage billed at your hourly rate, and say whether unused hours roll over.
Send a Grant Writer estimate for approval, then turn it into an invoice when the work is done.
Grant Writer estimate template