Until 26 February, taxpayers must consult, register, and/or confirm the invoices of all members of the household and any allocation to commercial/professional activity.
"By February 26th, validate your invoices and those of your dependents to be able to benefit from IRS deductions for 2023. If you have a business and professional activity, it affects the respective expenses".
You may use free online invoices generator. This is a quick and professional way to manage and check your invoices.”