Retainer Pricing Calculator
Price a monthly retainer and the rate for hours beyond it.
In short
Price a monthly retainer and the rate for hours beyond it.
Formula: Retainer fee = Included hours × Standard rate × (1 − Discount); Effective rate = Retainer fee ÷ Included hours
What this calculator does
The discount and every rate are entered by the firm. When no overage rate is given the standard rate is shown, and the profit line is left uncalculated unless a delivery cost is entered.
Use it to turn Currency, Hours included each month, Standard rate per hour, Retainer discount (optional), and the other shown inputs into a checked result you can compare, copy, or rerun with different assumptions.
The page shows the formula, a numeric worked example, and the assumptions that affect this professional & industry calculation.
Inputs and what they mean
- Currency
- — Amounts are shown in the currency you pick. No exchange rate is applied..
- Hours included each month
- — number value.
- Standard rate per hour
- — number value.
- Retainer discount (optional)
- — Optional component. Leave at 0 to exclude it from the result..
- Rate for hours beyond the retainer
- — Optional. Leave at 0 to use the standard rate..
- Monthly cost to deliver the retainer
- — Optional component. Leave at 0 to exclude it from the result..
How to use it
- Enter your own figures — the calculator never fills in a rate, price or benchmark for you.
- Press Calculate to see the result.
- Read the formula, variables, assumptions and source below the result before you rely on it.
Formula
Retainer fee = Included hours × Standard rate × (1 − Discount); Effective rate = Retainer fee ÷ Included hours.
Inputs used: Currency, Hours included each month, Standard rate per hour, Retainer discount (optional), Rate for hours beyond the retainer, Monthly cost to deliver the retainer.
Edge handling: Hours included each month is required.; Hours included each month cannot be negative.; Hours included each month must be no more than 1000000.; Standard rate per hour is required.; Standard rate per hour cannot be negative..
Worked example
40 hours a month at $150 with a 10% retainer discount
- Start with Currency: USD, Hours included each month: 40, Standard rate per hour: 150, Retainer discount (optional): 10, Rate for hours beyond the retainer: 165, Monthly cost to deliver the retainer: 3400.
- Apply the method: Retainer fee = Included hours × Standard rate × (1 − Discount); Effective rate = Retainer fee ÷ Included hours.
- The discount is applied to the standard rate you entered.
Reading the result
The headline figure is the main answer. Any breakdown underneath shows the parts that make it up, so you can check the working and see what changes when you adjust an input.
Limitations and assumptions
- Inputs outside the supported range are rejected rather than forced into a result.
- The result depends on the values you enter for this retainer pricing calculator; it does not supply missing rates, rules, prices, dates, or assumptions for you.
Reference: Rice University — Principles of Accounting, Volume 2: Managerial Accounting
Last reviewed:
Common questions
Where does this formula come from?
OpenStax, Principles of Accounting Volume 2: Managerial Accounting — job order costing, cost-plus pricing, margin and markup. See the source link on this page.
What kind of calculation is this?
The retainer is the discounted value of the hours it reserves, with the effective rate shown so the discount is explicit. Check the formula, example, and limitations on this page before using the result for a real professional & industry decision.
What are its limits?
Prices the commitment, not the value delivered; unused hours policy has to be agreed separately. Check the formula, example, and limitations on this page before using the result for a real professional & industry decision.
How do I use the Retainer Pricing Calculator?
Enter the required values for Currency, Hours included each month, Standard rate per hour, Retainer discount (optional), Rate for hours beyond the retainer, and the other fields shown. The calculator applies the formula on this page and shows the main result with any supporting breakdown so you can check the arithmetic.
What formula does the Retainer Pricing Calculator use?
Retainer fee = Included hours × Standard rate × (1 − Discount); Effective rate = Retainer fee ÷ Included hours The visible formula section above lists the calculation path and the edge cases the page handles, so the result can be checked without relying on the form alone. Check the formula, example, and limitations on this page before using the result for a real professional & industry decision.
Can the Retainer Pricing Calculator be used for exact decisions?
Use it as a calculation aid, not as a substitute for checking the underlying rule, contract, policy, or professional advice that applies to your situation. When a result depends on local rules, personal details, prices, or dates, enter those values yourself and confirm them before acting.
Formula, source and verification
The retainer is the discounted value of the hours it reserves, with the effective rate shown so the discount is explicit.
The question it answers: What should a monthly retainer cost, and what do extra hours cost?
The formula
Retainer fee = Included hours × Standard rate × (1 − Discount); Effective rate = Retainer fee ÷ Included hours
- H — Included hours
- (h). Hours reserved each month.
- R — Standard rate
- (currency/h). Rate charged outside a retainer.
- d — Retainer discount
- (%). Optional discount for committing to the retainer.
- V — Overage rate
- (currency/h). Optional rate for hours beyond the retainer.
- K — Monthly delivery cost
- (currency). Optional cost of delivering the retainer.
Units: Hours; currency per hour; currency; percentages.
What kind of calculation this is
Business input model. The answer depends on business figures only you can supply, such as your own costs, rates or volumes. No market or benchmark values are assumed for you.
Method
The discount and every rate are entered by the firm. When no overage rate is given the standard rate is shown, and the profit line is left uncalculated unless a delivery cost is entered.
Assumptions built into the result
- Mathematical: The included hours are reserved whether used or not.
Figures this calculator will never guess for you
- No industry-average rate, margin, overhead or ticket volume is inserted.
- No optional component is filled in on the user's behalf.
- No standard retainer discount is assumed.
Limitations
- Prices the commitment, not the value delivered; unused hours policy has to be agreed separately.
Source and version
- Standard or reference
- Cost accumulation, cost-plus pricing, margin and markup (OpenStax, Principles of Accounting Volume 2: Managerial Accounting — job order costing, cost-plus pricing, margin and markup.)
- Published source
- Rice University — OpenStax (CC BY)
- Formula version
- Version 1
- Verification
- Reviewed against the cited source on
- How much weight the source carries
- Academic
- Applies to
- Currency
- Amounts stay in the currency you choose; no exchange rate is applied.
Cite this page
Free Calculator. (2026, September 16). Retainer Pricing Calculator. https://freecalculator.tech/tools/retainer-pricing-calculator
"Retainer Pricing Calculator." Free Calculator, 16 Sept. 2026, https://freecalculator.tech/tools/retainer-pricing-calculator.
Retainer Pricing Calculator — Free Calculator, https://freecalculator.tech/tools/retainer-pricing-calculator
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