Impact Effort Matrix: Score It in Your Own Hours

Open the page where the RICE scoring model was first written down and read the definition of its last term. Effort, Intercom says, is “the total amount of time a project will require from all members of your team.” (intercom.com)

That sentence is the whole problem, and it is not Intercom’s fault. The Office of Advocacy at the Small Business Administration counts 36,207,130 small businesses in the United States, and reports that “82.3 percent, or 29,811,495 firms, have no employees.” (advocacy.sba.gov) For four businesses in five, “all members of your team” resolves to one person. Divide by a team you do not have and the number you get is not capacity. It is a calendar.

What the four-box version throws away

Most owners never meet RICE. They meet its simplified cousin, the impact effort matrix: two axes, four boxes, and a standing instruction to do the high impact and low effort box first. The boxes are usually called quick wins, major projects, fill-ins, and thankless tasks.

Bucketing is what makes the grid quick to draw, and it is also what breaks it. An afternoon and three weeks both land in “low effort.” A job worth $500 and a job worth $50,000 both land in “high impact.” Once two initiatives are in the same box, the grid has no opinion about which comes first, and that is precisely the question you sat down to answer.

With a team, the missing opinion does not hurt much, because several quick wins can run at once in different pairs of hands. With one person, nothing runs at once. The list is not a portfolio. It is a queue, and the order is the entire decision.

Move 1: score impact on a scale that can say “barely”

Write your initiatives in a single column. Five to ten is the workable range, and if you have thirty, the first useful act is admitting that twenty of them are not happening this quarter.

Then score impact using numbers rather than boxes. Intercom’s published scale is “3 for ‘massive impact’, 2 for ‘high’, 1 for ‘medium’, 0.5 for ‘low’, and finally 0.25 for ‘minimal’.” (intercom.com) The important part of that scale is the bottom half. It runs below 1, so it can record that something is worth doing and still worth very little, which a four-box grid cannot express. Most lists contain two or three genuine 3s and a long tail of 0.5s that had been quietly presenting themselves as equals.

Score against one named outcome, not against general goodness. If you have not written that outcome down, the scores will drift toward whatever you happened to be annoyed about this morning.

Move 2: re-denominate effort in your hours, not all hours

This is the move that changes the ranking, and it takes one extra column.

For each initiative, split the work into the part that requires you specifically and the part that merely requires someone. Then write two numbers: total hours, and your hours. The gap between them is the part you can buy.

Say you run a two-van plumbing company, and this is a hypothetical rather than a case study. “Photograph and write up 40 completed jobs for the website” scores well on impact and looks like a major project at roughly 30 hours. Split it, though, and the part that genuinely requires you is choosing which 40 jobs and approving the copy, which is maybe 3 hours. The other 27 are a contractor at a price you can look up. Meanwhile “renegotiate the supplier contract” is 6 hours total and 6 hours yours, because nobody else can sign it.

On a standard matrix the 30 hour job is a major project and the 6 hour job is a quick win. Denominated in your hours, they swap places. The website job is a 3 hour decision with a purchase attached; the contract is the expensive one.

This is the sense in which the effort axis lies. It conflates how much work exists with how much of your work exists, and only the second is genuinely scarce in a business where one person is the bottleneck for everything.

Move 3: keep the confidence term, because it is the one that gets dropped

Simplified versions of RICE almost always drop confidence, on the grounds that it is soft. It is the only term in the model that encodes the possibility of being wrong, and Intercom is direct about why it is there: to “curb enthusiasm for exciting but ill-defined ideas.” Its tiers are plain, “100% is ‘high confidence’, 80% is ‘medium’, 50% is ‘low’.” (intercom.com)

Multiply your impact score by the confidence percentage before you rank. A 3 you are guessing at becomes a 1.5 and stops outranking a 2 you have evidence for. In practice this one multiplication is what keeps the newest, shiniest idea on the list from going straight to the top, which is the failure mode owners describe most often and blame on discipline rather than on arithmetic.

Move 4: turn the ranking into dates, or it will not survive the week

Rank by impact times confidence, divided by your hours. Then do the thing the matrix never asks for: put a start week against the top item and a start week against the second, and accept that the second one starts after the first one ends.

That last clause is the honest part. A ranked list read on a Monday feels like a plan for the quarter. A queue with dates shows you that items four and five begin in November, which is usually the moment an owner decides to buy help for the middle of the list rather than leave it notional. Nothing else in this process surfaces that decision, because everything else in this process is about which work matters and not about when it can physically happen.

Scoring an AI initiative, where the hours are usually wrong in a specific direction

AI pilots tend to arrive on these lists with a suspiciously small effort number, because setup really is short. The hours that get missed are the ones after setup, when someone has to read the output and decide whether it is right, and in a small business that someone is usually you. An AI initiative is often a low total-hours, high your-hours item, which is exactly the shape Move 2 is built to catch.

It is worth knowing that the smallest firms are not behind on this. Advocacy reports that between September 2024 and August 2025, 7.6 percent of businesses used artificial intelligence, and that “the most likely businesses to have used A.I. were those with more than 250 employees, 11.4 percent, followed by those with fewer than five employees, 8.2 percent.” (advocacy.sba.gov) Firms with fewer than five people adopt at a higher rate than everyone except the largest. The very small are second in line, not last.

The part I would argue for hardest

Here is judgment rather than a finding. Most prioritization advice is written for people choosing between projects, and owners are usually choosing between a project and the day. The list you are ranking competes with quoting, invoicing, and answering the phone, none of which appear on it. So the ranking is not really a ranking of initiatives against each other. It is a bid for a few hours a week against operations, and it loses that bid silently unless the hours are booked somewhere a person can see them.

Which means the single most valuable output of a scoring session is not the order. It is the number at the bottom: how many of your hours per week this list assumes. Write that down and compare it to the hours you actually have free. When the first number is bigger, you have not found a prioritization problem, you have found a capacity problem, and the answer to a capacity problem is to buy some, not to rank harder.

Where to keep the scored list

A spreadsheet with five columns genuinely covers this, and if that is what you will maintain, stop reading and open one. The columns are initiative, impact, confidence, your hours, and start week.

If the list needs to be visible to somebody other than you, two real options at prices checked on the vendors’ own pages today. Trello runs a free plan at $0, described on its pricing page as free for up to 10 collaborators per Workspace, which holds a scored list and a queue perfectly well; Standard is $5 per user per month billed annually, $6 billed monthly, and Premium is $10 per user per month billed annually, $12.50 billed monthly. (trello.com/pricing) Airtable is the sturdier choice once you want to sort and filter a scoring history rather than look at cards, with a Free plan at no charge, Team at $20 per user per month billed annually and Business at $45. (airtable.com/pricing)

At $20 a seat, Airtable’s Team plan is hard to justify for a list of eight rows you rescore quarterly, so treat the free tiers as the real answer and upgrade only when the history starts doing work.

If the harder part is running the scoring conversation rather than storing the result, the Strategic Initiative Prioritizer prompt at BusinessPrompter.com is built to walk you through prioritizing initiatives on impact, effort and alignment. Worth knowing before you click: it sits in the library’s Strategy and Planning section and it is a Pro prompt behind an upgrade.

What this does not decide

Scoring tells you which initiative earns your next free block. It does not tell you what to do when the phone rings during that block, which is a different problem with a different fix, covered in urgent versus important, and the response policy that removes half of what feels urgent.

It also says nothing about how carefully to make each call once it reaches the front of the queue. That depends on whether you can walk the decision back, which is the sorting rule in a decision-making framework built on reversible and irreversible doors. And for the initiatives that need money rather than hours, the sizing question is its own discipline, worked through in how to size a bet you can afford to lose.

One thing is worth saying plainly, because prioritization frameworks get misread this way. Finding that 27 of those 30 hours do not require you is an argument for buying those hours so the business can take on work it currently turns down. It is not a discovery that the work did not need doing, and it is not a case for running a smaller operation. The point of clearing the queue is that a small team gets to say yes more often.

Start with the second column

Take your current list this week and add one column: of the total hours each item needs, how many have to be yours. Do not rescore anything else yet. That single column reorders most lists on its own, and it tends to reveal that the item you have been postponing for months is cheap in the only currency you are short of.

Frequently Asked Questions

What is the difference between an impact effort matrix and RICE?
An impact effort matrix sorts initiatives into four boxes on two axes, which is fast but discards the difference between an afternoon and three weeks once both are labeled low effort. RICE keeps numbers instead of boxes and scores four factors, with the formula given by Intercom as reach times impact times confidence, divided by effort. (intercom.com) For a one-person business the useful hybrid is to keep RICE’s numbers and replace its effort term with your own hours.

How do I score effort when I am the only person in the business?
Split each initiative into the part that requires you specifically and the part that requires somebody, then rank using only your hours. Intercom defines effort as “the total amount of time a project will require from all members of your team” (intercom.com), which does not describe the 82.3 percent of US small businesses that have no employees. (advocacy.sba.gov) The hours that are not yours are a purchase, not an obstacle.

What impact scores should I use?
Intercom’s published scale is “3 for ‘massive impact’, 2 for ‘high’, 1 for ‘medium’, 0.5 for ‘low’, and finally 0.25 for ‘minimal’.” (intercom.com) Score every item against one named outcome rather than against general usefulness, and expect most of the list to sit at 0.5.

Do I need software to run this?
No. Five spreadsheet columns cover it: initiative, impact, confidence, your hours, and start week. If other people need to see the queue, Trello’s free plan is $0 and free for up to 10 collaborators per Workspace, with Standard at $5 per user per month billed annually (trello.com/pricing), and Airtable offers a Free plan at no charge with Team at $20 per user per month billed annually (airtable.com/pricing).