Can I claim advertising expenses before launch?

Yes—often, but not always.

If the advertising is for a business that has not started active operations yet, those costs are commonly treated as startup costs rather than immediately deductible operating expenses. In the U.S., startup costs may be partially deductible in the year the business begins active operations, with the remainder generally amortized over time.

But this is not a universal rule in every situation or jurisdiction. The treatment can depend on factors like:

• whether the business has actually started active operations,
• whether the advertising is for a brand-new business or an existing one,
• what the spending is for, and
• the tax rules where you file.

If you already have an operating business and you’re advertising a new product, service, or location, those costs are often treated as ordinary business advertising expenses and may be deductible when incurred.

Because the exact rules and thresholds can vary and the timing of “business start” is fact-specific, it’s best to check the current rules for your jurisdiction or confirm with a tax professional before filing.