How Much to Charge for Consulting Per Hour, Per Day and on Retainer

How can I calculate my hourly consulting rate?

Divide the revenue the practice needs by the hours you can bill. Revenue needed = take-home goal / (1 - tax reserve) + yearly business expenses. Billable hours = billable hours a week x working weeks.

With the assumptions below, $90,000 / 0.75 = $120,000 before tax, plus $10,500 of expenses is $130,500.00. Twenty billable hours a week for 45 weeks is 900 hours, so the rate is $145.00 an hour.

The "naive rate" line is the $90,000 goal divided by 2,080 salaried hours: $43.27. It leaves out tax, expenses and unbilled hours; the freelance hourly rate calculator guide works through that shortfall. I build pricing maths and I am not a consultant, so every hour figure here is a placeholder for your own.

Consulting hourly rate calculator: enter your own numbers

Type your take-home goal, yearly expenses, tax reserve and billable hours. The "Hourly rate to charge" line is the number every retainer, day rate and project fee below multiplies.

For a consultant the expenses input holds items such as professional liability insurance, software, accounting fees, memberships, and travel no client reimburses.

The 25% tax reserve is an assumption, not a recommendation. The IRS states that the self-employment tax rate is 15.3%, made of 12.4% for Social Security and 2.9% for Medicare (IRS: Self-employment tax), and income tax comes on top. It also says individuals generally have to make estimated tax payments if they expect to owe $1,000 or more, over four payment periods a year (IRS: Estimated taxes). Confirm your own percentage with a tax professional.

To keep the rate in a file, the freelance rate and quote calculator runs the same sum in Excel or Google Sheets.

How many billable hours a week does a consultant really sell?

Fewer than the hours worked, because winning the work is unpaid. The share of your week that reaches an invoice is your utilisation, and every billable hour you lose raises the rate.

Travel is left out on purpose: count it here as unbilled time or price it into the day rate below, not both.

Every row pays the same $90,000. Near the example, one billable hour a week lost to proposals (19 hours, not 20) lifts the rate to $152.63, which is $7.63 more on every hour billed. Selling discovery as a paid first phase turns some of those hours billable.

How to calculate a consulting retainer fee

Monthly retainer = hours reserved for the client each month x your hourly rate. A 20-hour retainer at $145.00 is $2,900 a month.

A retainer sells capacity, so check it against the hours you have. The example's 900 billable hours a year average 75 a month.

A mix that fills the month: two 20-hour retainers and one 10-hour retainer reserve 50 hours for $7,250. The remaining 25 hours go to project work worth $3,625. Together that is $10,875 a month, exactly one twelfth of the $130,500.00 the year needs. A fourth 20-hour retainer would reserve 80 hours in a 75-hour month: a client gets less than they paid for, or you bill more hours than the rate was built on.

Price hours beyond the reserve at the same rate: 4 extra hours add $580. A retainer built from task minutes, not reserved hours, is worked through in the social media management pricing guide.

What does an unused retainer hour cost: use it or lose it vs rollover?

Under use it or lose it, an unused hour costs you nothing and the client $145.00. Under rollover, each unused hour becomes an hour you owe later without new money.

Take the 20-hour retainer in a month when the client uses 14 hours and leaves 6.

With use it or lose it you are paid $2,900 for 14 hours of work, $207.14 an hour. The case for that policy is that the 20 hours were held for the client. With uncapped rollover, next month's $2,900 has to cover 26 hours, $111.54 an hour, and in a full month the 6 extra hours displace $870 of other billable work.

The debt compounds. A client who leaves 6 hours unused every month for 6 months banks 36 hours, $5,220 of work already paid for and 48% of a 75-hour month. A cap of 5 hours carried for one month keeps the debt at $725. Which policy to offer is your commercial choice; write it into the agreement as hours and a date.

How to price an advisory or access retainer

Price it from the hours it really consumes, not from the calls on the calendar. An advisory retainer sells availability, and availability uses hours that never appear as a meeting.

Sold as "two calls a month" at 2 hours, the same service would be priced at $290. That is $1,160 short, and it pays $29 for each of the 10 hours it takes. State the limits in the agreement: number of calls, a response time, and what counts as a new project.

Consulting day rate: how many billable hours are in the day?

Day rate = hourly rate x the hours the day takes from you, which is not always 8. The calculator's "Day rate (8 hours)" line, $1,160.00, is right only when the day costs you 8 hours.

The workshop day takes 11 hours and prices at $1,595, $435 above the 8-hour figure. A half day follows the same rule: on site with 2 hours of travel it is 6 hours, $870, which is 75% of the 8-hour day. That percentage is a result of the hours, not a rule.

One caution on long day-rate contracts: the IRS says the general rule is that a person is an independent contractor if the client has the right to control or direct only the result of the work, not what will be done and how (IRS: Independent contractor defined). If a client sets your hours and methods, ask a tax or legal professional how the arrangement is classified. Billable days a year and half-day percentages are covered in the freelance day rate calculator guide.

How to calculate a fixed consulting project fee

Fixed fee = (estimated hours + contingency hours) x hourly rate. Write the contingency as named hours for named risks, so you and the client can both see what it covers.

The estimate is 60 hours, $8,700. The contingency is 10 hours, $1,450, for two named risks: more people to interview and a second round of changes. Hours can be checked against the scope; a percentage cannot. Scope wording and the effect of an overrun on your effective rate are in the freelance quote template guide.

Value-based pricing as a ceiling check

Hours x rate is the floor. The ceiling is what the client says the result is worth, so ask before quoting. If the client says the problem costs them $60,000 a year, the $10,150 fee sits under it. If the client says $8,000, the fee is above the ceiling: cut scope until the hours fit (55 hours is $7,975) or decline. Do not cut the rate. Quoting above the floor when the stated value is far higher is your choice; I give no percentage for it, because I have found no primary source for one.

Consulting fee formulas for Excel and Google Sheets

Five formulas reproduce the rate, the retainer, the unused-hours check, the day rate and the project fee. Inputs go in column B, with the tax reserve typed as a percentage.

Keep reserved hours and hours used in separate cells for each retainer client.

Consulting fee mistakes, and what to put in your rate sheet

• Building the rate on a 40-hour billable week.
• Selling more retainer hours than the month holds.
• Open-ended rollover: a debt with no date on it.
• Pricing advice by call length when preparation, messages and reading are most of the hours.
• Calling every day 8 hours and leaving out preparation and travel.

What to put in your consulting rate sheet: take-home goal, yearly expenses, tax reserve, billable hours a week and working weeks; monthly billable hours; reserved hours and hours used per retainer client; your rollover cap; hours per type of day; and estimated plus contingency hours per project.

An online retainer calculator returns a fee from a rate you type in; a spreadsheet keeps the assumptions behind that rate. The freelance pricing template is $14.99 one-time for Excel and Google Sheets. Step 1 returns the break-even hourly rate from your income goal, billable hours, expenses and tax set-aside, then a recommended rate on a profit margin you set. Step 2 quotes a project from estimated hours, the rate, a materials or software cost and a rush or complexity markup. It has no retainer tab and no day-rate cell: use the formulas above for those. It is a pricing sheet, not a branded proposal.

Step-by-step: How Much to Charge for Consulting Per Hour, Per Day and on Retainer

1. Set the revenue you need. Divide your take-home goal by (1 - tax reserve) and add yearly business expenses. The example needs $130,500.00.
2. Count billable hours honestly. Log two normal weeks, mark the hours that could go on an invoice, and multiply by your working weeks. The example uses 20 x 45 = 900.
3. Divide for the hourly rate. Revenue needed / billable hours a year. $130,500.00 / 900 = $145.00 an hour.
4. Price retainers as reserved hours. Reserved hours x rate, checked against monthly billable hours (900 / 12 = 75). A 20-hour retainer is $2,900.
5. Price days by the hours they take. Add delivery, preparation and travel hours, then multiply by the rate. An on-site day of 8 hours plus 2 of travel is $1,450.
6. Price projects with contingency hours. Estimated hours plus named contingency hours, times the rate: (60 + 10) x $145.00 = $10,150. Check the fee against the value the client states.

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