How to Calculate Switching Costs
Total switching cost adds the fees you pay to leave and the value of the time the move takes, and switching pays when the saving per period times the periods you stay beats that total.
The Switching Costs formula
Calculator
Enter the two prices, what moving costs you and how long you plan to stay to see whether switching pays.
Per period, so per month for a monthly subscription.
Use the price after any introductory rate ends.
Cancellation charges, a new deposit, replacement equipment.
Transferring data, setting up, learning the new system.
The time cost is real even though nobody bills you for it.
How long you will keep using the service after moving.
Saving minus the cost of moving leaves $66, which is what the decision turns on.
- Saving per period
- $12
- Total switching cost
- $150
- Total saving over the horizon
- $216
- Break-even periods
- 12.5
- Premium the current seller can hold
- $8.33
- Verdict
- Switching pays
Moving cuts $12 off each period's bill, and that is the only thing paying back the cost of the move.
Fees plus the value of the hours spent come to $150, all of it paid once.
Across the periods you expect to stay the saving adds up to $216.
The move pays for itself after 12.5 periods, so a shorter stay than that makes staying put the better call.
Spread over your horizon, the switching cost lets the seller charge $8.33 per period more than a rival and still keep you.
The comparison is the one-off cost of moving against the saving stacked up over the time you actually stay.
How to calculate Switching Costs, step by step
- 1Find the saving per period. Subtract the rival's price from what you pay now. If the rival's offer is an introductory rate, use the price you will actually be paying once it ends.
- 2Add up what moving costs in cash. Exit and cancellation fees, a new deposit, equipment that has to be replaced, anything you hand over only because you are leaving.
- 3Put a price on the time. Multiply the hours the move takes by what an hour is worth to you, then add that to the cash costs for the total switching cost.
- 4Decide how many periods you will stay. The saving only accumulates while you keep using the service, so a short horizon is what makes staying with a worse deal rational.
- 5Compare the two totals, or find the break-even. Saving per period times periods against the switching cost gives the net gain, and switching cost divided by the saving gives the number of periods at which the move pays for itself.
Worked example: Switching Costs
You pay $42 a month for a service a rival sells at $30, so the saving is $12 a month. Leaving costs a $90 exit fee, and the move takes 4 hours you value at $15 each, another $60, for $150 in total. Over 18 months the saving is 12 × 18 = $216, which beats $150 by $66, so switching pays. The break-even is 150 ÷ 12 = 12.5 months, so anyone who expects to need the service for less than that should stay. Spread over the same 18 months, the $150 also lets the current seller sit 150 ÷ 18 = $8.33 a month above the rival and still keep you.
Switching Costs questions
What counts as a switching cost?
Anything you pay only because you moved: cancellation fees, a new deposit, the hours spent transferring files and learning a new system, loyalty status or reward points left behind, and accessories that no longer fit. The test is whether the cost disappears if you stay put.
Should sunk costs go into the calculation?
No. Money already spent is gone whether you stay or leave, so it changes nothing about which option is cheaper from here. Only costs that appear because of the switch belong in the comparison, which is why the setup fee you paid years ago is irrelevant and the exit fee is not.
How do switching costs help the seller?
They let the seller charge existing customers more than a rival without losing them. Spread across the periods a customer expects to stay, a $150 switching cost over 18 months buys the seller room to sit $8.33 a month above the competition, which is why introductory prices are so often lower than renewal prices.
Are switching costs a barrier to entry?
They work like one. A newcomer has to beat the incumbent's price by enough to cover the cost of moving before anyone will move, which means pricing low for a stretch and absorbing the loss. That does not block entry outright, but it raises the capital an entrant needs to survive its early years.
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