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Doctor reviewing a CFDI for fees and a patient's electronic payment.
Accounting for Doctors10 min read

Accounting for Doctors: CFDI, VAT, and Patient Deductions

Accounting for doctors links CFDI, billing, VAT, patient deductions, and tax records without mixing sensitive clinical data.

Bryan Carrizalez · Aug 22, 2026Read guide →
Person reviewing the reason for a rejected refund and preparing evidence for SAT.
SAT Refunds9 min read

Rejected Tax Refund by SAT: Causes and What to Do

When SAT does not refund your tax credit balance, review the result, classify the inconsistency, and decide whether to clarify, correct,...

Cassandra Torres · Aug 16, 2026Read guide →
Taxpayer and accountant organizing a late return with acknowledgment and payment slip.
SAT Returns9 min read

Late Filing with the SAT: Penalties, Surcharges, and How to Regularize

Filing a late return requires reconstructing the period, calculating accessories, and documenting whether compliance was voluntary or...

Andrés Chávez · Aug 14, 2026Read guide →
Business owner preparing employer registration and file for the first employee.
IMSS12 min read

IMSS Employer Registration: What to Do Before Hiring Your First Employee

Before hiring your first employee, prepare employer registration, work risk classification, employee file, IMSS registration, and payroll.

Cassandra Torres · Aug 12, 2026Read guide →
Analyst calculating ISR and VAT withholdings for fees and rent.
Withholdings12 min read

ISR and VAT Withholdings When Paying Fees or Rent

Before paying fees or rent, identify the parties, concept, base, and obligations to correctly calculate and remit withheld ISR and VAT.

Héctor Jasso · Aug 8, 2026Read guide →
Landlord reviewing contract, CFDI, and tax returns for a property.
Leasing13 min read

Leasing for Individuals: ISR, IVA, CFDI, and Tax Returns

Guide to managing ISR, IVA, CFDI, withholdings, and deductions when an individual rents out a home, commercial space, warehouse, or office.

José Miguel González · Aug 4, 2026Read guide →
Online merchant reconciling platform sales, fees, withholdings, and bank deposits.
Digital Platforms13 min read

Taxes for Selling on Digital Platforms, Apps, or Your Own Store

Selling on marketplaces or apps requires separating gross sales, commissions, withholdings, returns, and deposits before invoicing and...

Jimena Cruz · Jul 29, 2026Read guide →
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