Is charging a rush fee unprofessional?

The opposite. Airlines, printers, and lawyers all price urgency; it is how grown-up services allocate scarce time. Quietly absorbing every emergency for free teaches clients that your deadlines are decorative.

When does the rush premium apply?

When the timeline forces off-hours work, displaces other commitments, or removes your revision margin. Say it before starting, in writing, as a line item: "Rush delivery (+50%)". Surprise fees burn trust.

The client pushes back on the fee. Options?

Offer the trade: normal price with the normal timeline, rush price for the rush. That reframes the fee as their choice between money and time, which is exactly what it is.

Calculators

Rush fee calculator

Rush work costs you nights, weekends, and every other client you push aside. If the deadline is the client's emergency, the premium is theirs to pay. This prices it and shows the effective hourly that makes it worth saying yes.

Your numbers

Normal price for the work

What you would quote with a comfortable deadline.

Rush premium

25-50% for tight, 50-100% for weekend/overnight. Below 25% is not a rush fee, it is a courtesy.

Estimated hours

To see the effective hourly under rush.

What the ledger says

Rush quote$3,000

Of which rush fee: +$1,000
Effective hourly (rushed): $150
Effective hourly (normal): $100

Estimate, not advice

The formula

Rush price = normal price × (1 + premium). The premium compensates displaced work and off-hours, not higher quality: the deliverable is the same, the conditions are not.

What this ignores

Whether you should take the job at all (exhaustion has costs no fee covers), recurring-client goodwill discounts, and true 24-hour turnarounds, which price case by case above any formula.

Field notes

Is charging a rush fee unprofessional?: The opposite. Airlines, printers, and lawyers all price urgency; it is how grown-up services allocate scarce time. Quietly absorbing every emergency for free teaches clients that your deadlines are decorative.
When does the rush premium apply?: When the timeline forces off-hours work, displaces other commitments, or removes your revision margin. Say it before starting, in writing, as a line item: "Rush delivery (+50%)". Surprise fees burn trust.
The client pushes back on the fee. Options?: Offer the trade: normal price with the normal timeline, rush price for the rush. That reframes the fee as their choice between money and time, which is exactly what it is.