How Do You Size and Manage Marketing Development Funds Without Waste in 2027?

By Kory White · Updated Nov 2026 · 8 min read

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Direct answer

Size MDF as a share of something you can count, then let results move it. For accrual funds, the share is of partner purchases: Partner Standard's operator guide (copyright 2026, no publication date) lists tiered co-op of two to five percent of partner purchases as typical. For discretionary funds, the share is of the channel budget: the same guide cites a 2% to 6% rule of thumb from Michele Lee, who leads channel programs at Juniper Networks in APAC, and calls it one practitioner's view, not a benchmark. It suggests 2% to 4% as an opening number for a new program. I found no traceable industry figure for MDF as a percentage of channel revenue, so treat any such figure that arrives without an author and a year as unverified.

Managing it without waste comes down to four controls, each visible in vendors' public terms: approve the activity before it runs (Microsoft requires a pre-approval ID), reimburse after proof instead of paying up front (AWS and DigiCert both do), put a hard expiry on unused money (Microsoft partners forfeit unused earnings at the end of the usage period), and measure return on what was actually claimed, not on the budget (Partner Standard's KPI page, updated October 30, 2025).

None of these sources dates from 2027; the newest were updated in 2025 and 2026. Program terms change by fiscal year, so check the current document for any program you join or run.

Sizing the pool: what published sources give you

There are two kinds of MDF, and they are sized differently. Partner Standard describes the allocation as either discretionary, where the vendor decides, or accrual-based, where the partner earns it through prior purchases. Accrual is a formula. Discretionary is a budget decision.

Accrual funds, Partner Standard operator guide (2026)Co-op is a tiered percentage of partner revenue, with two to five percent typical, stated as a share of partner purchases (Partner Standard).
Discretionary funds, rule of thumb2% to 6% of total channel budget, attributed to Michele Lee of Juniper Networks in a Channelscaler webinar. Partner Standard calls it one practitioner's rule of thumb, not a hard benchmark, and gives no year.
Starting a new programPartner Standard says 2% to 4% of channel budget is a defensible opening number, with the upper end reserved for partners you have high confidence in.
A real split, Microsoft Learn (updated September 15, 2025)Microsoft calculates eligible incentive earnings using a percentage split, such as 60% rebate and 40% co-op. The co-op portion is the part tied to marketing reimbursement (Microsoft Learn).

Illustration, not data. If a partner bought $500,000 of product in an accrual period and the program accrued 2%, the pool would be $10,000. At 5% it would be $25,000. These numbers are an arithmetic example written for this page, using the range above.

Judgment: a percentage of purchases rewards the partners who already sell the most, which is not always where growth is. Many programs reserve some discretionary money for target partners or new motions. The sources read here do not say how any vendor splits the two.

The most-quoted MDF statistic is that roughly 60% of allocated funds go unused. Partner Standard attributes it to ZINFI, a vendor of partner-program software, and calls it directional, not precise. It also offers its own estimate that about half never gets claimed. Use these as a reason to design for claims, not as a benchmark for your program.

Eligibility: decide who can spend before anyone asks

Public program terms show the same few gates. The examples below are each vendor's rules for its own program, not an industry standard.

Standing and a plan. DigiCert (guide dated December 2023) makes MDF available to partners in good standing with no past due invoices, and requires a documented marketing plan. Funding is determined quarterly based on partner engagement, projected return on investment and fund availability.
Named, approved activities. AWS's 2025 reimbursement guide (updated November 2024) covers third-party event sponsorships from an approved list, and says up to 50% of the sponsorship fee is eligible, subject to funds in the partner's wallet.
A cap per activity type. Microsoft's core requirements limit customer offers to actual costs up to 25% of earned co-op funds per usage period, and product seeding to up to 10% of accrued co-op or USD 3,000, whichever is greater.
A written exclusions list. DigiCert excludes items such as discounting its products, association membership fees, billboard signage, and travel unless pre-approved, and requires its logo on funded collateral.
Having funds does not mean getting the percentage. AWS says sponsoring does not unlock additional MDF. Its example: a $15,000 sponsorship with $6,000 in the wallet cannot be reimbursed at the full 50%.

Large empty exhibition hall with a black floor and rows of ceiling lights — Photo: Messezentrum Salzburg/Christof Reich / GFDL via Wikimedia Commons

Proof of performance: require it for every claim

Proof of performance (Microsoft calls it proof of execution) is the evidence that the approved activity happened and what it cost. Vendors ask for similar things in different words.

Microsoft. A third-party invoice or a Certification Service Report, an execution date that falls between the campaign start and end dates, an estimated reach, and the pre-approval ID Microsoft sends after approving the marketing materials (Microsoft Learn, updated September 15, 2025). By activity type, digital ads need a screenshot plus the landing page URL and a summary of results, and tradeshows need the invitation and agenda, a photo of participation and an attendance estimate.
DigiCert. An invoice or receipt with the activity name, dates and currency, an image of the marketing deliverable, and an MDF ROI report with key metrics such as booth traffic, event attendance, email open rates and deal registrations. A partner-generated invoice alone is not enough.
AWS (event sponsorships). The executed sponsorship contract, the invoice, and AWS's email confirming the invoice was paid in full.

Judgment: the common thread is three layers: a document from a third party that shows money moved, an artifact that shows the activity ran, and a result that shows who it reached. If a claim is missing one, ask before paying.

Claims, deadlines and clawback

Deadlines are where unused money is created and where it is recovered. These are the published mechanics.

Microsoft: earn, use, claim, forfeitEarnings accrue during a six-month earning period, are used in the following six-month usage period, and can be claimed during a six-month claiming period. Earnings not used by the end of the usage period are forfeited. Microsoft can request original proof documents, and partners should keep them for 24 months after the activity date (Microsoft Learn).
DigiCert: request, claim, paymentRequests go in one month before the quarter. Reimbursement follows within 60 days of claim submission. Unused allocations cannot carry over between quarters, and a partner gets no further MDF until proof for prior activities is accepted. DigiCert reserves the right to audit and verify claims, and non-compliant partners may become ineligible for a period of time.
AWS: no late claimsAWS says it does not accept late claims past deadlines or late invoice submissions past the claim expiration date. The partner pays the sponsorship invoice in full first, then claims reimbursement.
DigiCert on terminationA partner has 60 days from the notice date to submit claims for approved activities, and any previously allocated funds are forfeited.

None of the public terms read here describes taking paid money back after the fact. Each reimburses after proof, so the exposure is mostly unspent allocation, which expires, rather than cash that has to be recovered. The Partner Standard operator guide contains no sentence on clawback or repayment.

Judgment: if you do pre-fund partners, which these programs avoid, put recovery terms in the written agreement before paying: what counts as non-performance, how long the partner has to cure it, and whether the amount is repaid or offset against future funds. Where you reimburse after proof, the practical levers are the ones above: expiry, an audit right, and withholding new funds until prior proof is accepted.

Measurement: judge return on what was claimed

Partner Standard's KPI page (last updated October 30, 2025) defines MDF ROI as attributed revenue minus MDF spend, divided by MDF spend, times 100. It defines attributed revenue as closed revenue you can trace to the funded activity, and MDF spend as the total allocated and claimed by the partner for that one activity. Its own illustration: a $10,000 roadshow with $40,000 in traced revenue gives 300%, and on a 60% gross margin the same activity gives 140%. That page gives no industry benchmarks.

Divide by claimed, not budgeted. The page says ROI should divide by what the partner actually spent and claimed, and that unclaimed MDF flatters the return.
Fix the attribution window. It defines the window as the period you allow between the activity and the close, and notes that channel ROI may take several quarters to realize.
Define each input the same way every time. The page warns that otherwise the number drifts. It also flags overreliance on self-reported data with no validation or audit trail.
Collect results at claim time. DigiCert asks for deal registrations tied to the campaign and an ROI report with the claim, so the data arrives while the activity is fresh.

Judgment: decide in advance which result ends a partner's access: for example, no claims for two periods or no qualifying activity. None of the sources read gives a threshold, so set one from your own history and write it down.

What the public sources do not tell you

No source read here gives a reliable industry average for MDF as a share of channel revenue, an average return, or a repayment rate. The figures above are vendor rules for their own programs and one operator guide's ranges, and the most-quoted statistic on unused funds comes from a software vendor. Use the ranges to open a conversation, then size your own pool from your partners' purchases, your approved activity list and what you can measure.

Questions people ask

How much should we budget for MDF?

Partner Standard gives two to five percent of partner purchases as typical for tiered co-op accrual, and cites a 2% to 6% of channel budget rule of thumb from one practitioner for discretionary funds, with 2% to 4% as an opening number. It calls these starting points, not benchmarks.

Is it true that 60% of MDF goes unused?

That figure is widely repeated, but Partner Standard attributes it to ZINFI, which sells partner-program software, and calls it directional, not precise. I found no primary study behind it.

What proof should a partner submit with an MDF claim?

DigiCert asks for a vendor invoice or receipt, an image of the deliverable and an MDF ROI report. Microsoft requires a third-party invoice or Certification Service Report, an execution date within the campaign dates and a pre-approval ID.

How long should we keep claim documents?

Microsoft tells partners to keep original proof of execution documents for 24 months after the activity date. That is one vendor's rule, so check your own agreement.

How do we calculate MDF ROI?

One published formula is attributed revenue minus MDF spend, divided by MDF spend, times 100, using the amount actually claimed as spend (Partner Standard). Pick a formula and an attribution window and keep them the same each period.

Sources

Partner Standard: Market Development Funds (MDF), The Operator's Guide · Accrual and discretionary sizing ranges, unused-funds statistic and its source
Partner Standard: Incentive/MDF effectiveness (updated October 30, 2025) · MDF ROI formula, inputs and caveats
Microsoft Learn: Incentives Co-op and Claims Overview (updated September 15, 2025) · Rebate and co-op split, earning, usage and claiming periods, 24-month record keeping
Microsoft Learn: Prepare your proof of execution (updated September 15, 2025) · Proof of execution fields and pre-approval ID
Microsoft Learn: Incentives core requirements (updated September 15, 2025) · Proof and eligible expenses by activity, caps on offers and seeding
AWS: Third-Party Sponsorships, 2025 MDF Reimbursement Guide (updated November 2024) · Up to 50% reimbursement, wallet limit, proof items, no late claims
DigiCert: Partner MDF Program Guide (December 2023 version) · Eligibility, request and claim process, proof, audit and forfeiture

MDF terms are set by each vendor and change by program year, and the percentages here are published ranges and rules of thumb, not guarantees. This page is general information, not legal, tax or financial advice.

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