An add-on price should reflect the additional work and cost created by the customer's choice. It should not automatically repeat the entire base product cost, and it should not be treated as free simply because the main item is already being made.
The examples below are hypothetical planning figures, not recommended rates.
Define the base product first
Write what the ordinary price includes. If a short name is already included, do not describe the same name entry as a paid upgrade elsewhere.
A clear base prevents arguments about whether a choice is standard or additional.
Keep the description and the checkout consistent. The buyer should understand the distinction before selecting the option.
Identify incremental materials
List only the extra materials needed for the addition, accounting for any base material it replaces.
If the add-on substitutes one finish for another, the incremental cost may be the difference rather than the full cost of the new finish.
Use actual quantities and avoid a generic percentage when the additional material can be measured.
Calculate incremental labour
Suppose an addition needs fifteen extra minutes and the illustrative labour rate is ₹120 per hour. The labour component is ₹30.
If it also needs ₹20 extra material, the defined incremental cost is ₹50 before other relevant charges.
That is not automatically the selling price. The business may need contribution for the additional work and any excluded costs.
Separate one-time setup
A custom design may require a setup step once for the order and repeated work for each item. Keep those separate.
For five identical personalised pieces, do not charge five full setup costs if the setup is genuinely shared. Conversely, five different designs may require separate preparation.
Explain the pricing structure clearly enough for a customer to understand why quantity or variation changes the quote.
Include proof and correction work
If the offer includes a proof or a defined number of revisions, account for that work. State the scope before the customer commits.
Do not promise unlimited changes without considering the capacity required.
A requested revision and an accepted revision should remain distinguishable, particularly after production starts.
Consider failure and rework honestly
Some additions may increase the chance of unusable material or require a test piece. Use observed experience or a labelled scenario, not an invented universal risk percentage.
Do not hide a quality problem inside an unexplained surcharge. Investigate whether the process can be improved.
Keep safety or technical limits separate from price. A higher charge does not make an unsuitable customisation feasible.
Test the total and record
Select the add-on in a safe storefront test and confirm that the total changes as intended. Check that the merchant record preserves the chosen specification.
A correct amount is not enough if the maker cannot identify what was purchased.
Also test removing the addition before confirmation so an earlier selection does not leave an unexplained charge.
Avoid misleading starting prices
If nearly every customer needs the add-on to obtain the product shown, reconsider whether it belongs in the base offer.
Do not advertise a stripped-down starting price that does not represent a realistic purchase.
Show the complete selected price before commitment and keep the specification associated with it.
Keep a specification example
Retain one non-private example showing the base item, the additional choice and the resulting work. Use it when training someone to quote the add-on. If two staff members interpret the same choice differently, correct the definition before relying on the price. Consistency begins with what is included, not only with the amount entered.
Review the incremental model
Compare estimated extra time and material with completed work. Update the add-on price or scope when the pattern changes.
Keep existing accepted commitments clear. Do not revise a customer's agreed total silently because the estimate was inaccurate.
A useful add-on structure makes the additional choice understandable and economically supportable. It should reflect the work actually added, not an arbitrary percentage or a hidden recovery of costs already charged in the base.
Examples are illustrative. Confirm current features, charges and suitability before making a business decision.
Explore this topic → · Find an oBizee setup guide · Ask about your store