Freelancers in Argentina must primarily pay the Monotributo or the régimen general. The Monotributo is a simplified tax system for small businesses, with monthly payments ranging from $2,000 to $5,000 depending on income, while the general system involves VAT and Income Tax.

To register as a freelancer in Argentina, you must obtain a CUIT (tax identification number) from the AFIP. You can do this online or in person at an AFIP office, and you'll need to provide your ID and proof of address.

Yes, freelancers in Argentina can deduct expenses related to their work, such as office supplies, internet bills, and professional services. Keep detailed records and receipts to substantiate these deductions when filing your taxes.

The deadline for filing taxes varies depending on your income category. Typically, freelancers must submit their annual tax return by the end of June for the previous fiscal year, but it's best to check AFIP's official calendar for exact dates.